Sizing composition

FIELD: stabilized dispersions.

SUBSTANCE: invention relates to emulsification and colloidal stabilization of emulsions and dispersions of hydrophobic phases in aqueous phases using a coacervate. In particular, stable emulsified or dispersed composition of invention, including hydrophobic and aqueous phases, is stabilized by cationic colloidal coacervate stabilizer including anionic and cationic components in a proportion ensuring zeta potential of the composition to be at least 20 mV. Preferred hydrophobic phase is non-colophony reactive or non-reactive sizing substance, although employment of coacervate allows stable emulsions or dispersions of mixtures of colophony and non-colophony sizing substances to be obtained. Furthermore, methods of obtaining and using stable emulsions or dispersions as well as sized paper made using emulsified or dispersed coacervate-stabilized sizing substance are described.

EFFECT: enhanced stabilization of emulsions and dispersions.

139 cl, 1 dwg, 3 tbl, 16 ex

 

Background of invention

The present invention relates to emulsification and colloidal stabilization of emulsions and dispersions of hydrophobic phase in an aqueous phase using koatservatnyh emulsifier or dispersant, in particular koatservatnyh emulsification or dispersion neonatally sizing substances. The object of the invention is also stable with a sizing composition, stable koatservata, the method of preparation of stable sizing composition, method of applying a sizing composition in the manufacture of sized paper and glued paper products, including cardboard, taped such a sizing composition.

Although koatservata according to the present invention can be used to stabilize emulsions and dispersions wide variety of types, including emulsion of mineral oil in water, the invention is described with reference to a preferred variant of its use as an agent, a stabilizing emulsion or dispersion comprising a sizing agents for paper-handling, in particular neonatally sizing substances.

Despite the myriad of operations that make up the process of making paper, a method of manufacturing paper usually includes the following stages: (1) preparation of an aqueous suspension of cellulosic fibers, odorou usually referred to as a fibrous mass; (2) the addition of various materials, which improves manufacturability and increase the quality of the paper, such as additives that increase the strength and/or a sizing agent; (3) listomania and drying the fibrous mass with the formation of the target paper web, and (4) subsequent processing of the fabric to give the finished paper of different target characteristics, including coating the surface sizing chemicals, etc.

A sizing agent, as a rule, are in the form of aqueous solutions, dispersions, emulsions or suspensions, which tells the paper treated in this sizing substance, namely glued paper, resistance to soaking or wetting of aqueous liquids, which include other additives for processing, printing inks, etc. Sizing agent are additives for processing in the mass used for the manufacture of paper, or outer, surface additives used during processing in the sizing press, which give improved performance.

In the paper industry is well known directionspanel and reactive sizing agent of many different types. Paper is usually made by a process in acidic conditions, so-called acid paper, usually glue using well-known Proclus is living substances on the basis of derivatives of rosin (which in the present description are called "rosin sizing agents"), which are usually considered as directionspanel sizing agent. Using rosin sizing agents can glue the paper some varieties, manufactured by conducting the process in a neutral or alkaline conditions. In the aforementioned related applications are described koatservatnyh dispersers for rosin sizing agents. The object of the present invention are mainly koatservatnyh dispersers and emulsifiers for neonatally sizing substances that are typically used in the manufacture of paper under alkaline conditions, called alkaline paper, as well as for General use in the preparation of stable dispersions and emulsions generally immiscible oil and water phases in the compositions. In addition, koatservatnyh stabilizing agent according to the present invention can be used to stabilize emulsions and dispersions of mixtures of sizing chemicals, including reactive and directionspanel rosin and scanivalve sizing agent.

The most common sizing agents for high-grade alkaline paper are alchemistry anhydride (AA) and alkylbetaine aneurysm (AAA). A sizing agent of another class, which can be used for sizing high-grade boom and, include ketonovye dimers and multinary at room temperature is in a liquid state, such as alkenylamine dimers and multimer. They represent a reactive sizing agent, because they contain reactive functional groups that paper covalently linked to the cellulose fiber, which causes the orientation of their hydrophobic tails in the direction opposite to the fiber direction. The nature and orientation of these hydrophobic tails causes the fiber to repel water.

In the manufacture of paper for regulatory efficiency and effectiveness of applying a sizing substances are important some of their properties. One important property is the efficiency of the sizing, i.e. the degree of sizing achieved per unit amount of added sizing agent. Efficiency sizing is determined by the quantity and cost of materials used to obtain a sizing agent needed to achieve the target of a characteristic or several characteristics of the sizing. More efficient sizing substance allows to achieve performance objectives with cost smaller quantity or increased efficiency, thus improving the economic performance of the paper manufacturing process. The excess is receiveaudio substances can lead to a noticeable decrease in the quality of the paper due to the formation of deposits on the parts of the paper machine, which cause the appearance of defects on the paper. In addition, such deposits reduce performance.

Performance sizing is affected by the type of sizing agent, paper type, for processing which applies a sizing substance, and many other factors that caused a huge amount of work in the past and now continue to cause serious concern in the paper industry. The present invention relates to sizing compositions of substances in the form of emulsions or dispersions, to compositions of cationic colloidal koatservatnyh dispersions for neonatally sizing substances and mixtures neonatally and rosin sizing agents, as well as to methods of preparation and application of ready-made compositions and dispersions. In paper production, the term "emulsion" (liquid in liquid) is sometimes used to refer to the fact that in the physical sense is a "variance" (solid in liquid).

Most sizing dispersions prepared by the method comprising preparing emulsions of hydrophobic sizing agent in an aqueous medium at a temperature at which it is sizing the substance is in a liquid state. Upon cooling to room temperature the emulsion droplets harden, resulting in obrazovatelnaya variance. For the successful implementation of this method requires the emulsifier and stabilizer. When used in the wet end of the paper manufacturing process particle sizing agent adsorbed on the cellulose fiber. Thermal drying causes melting placed on the fiber particles of rosin and its distribution along it. After that, the fiber becomes less wettable, i.e. glued.

To facilitate the emulsification and to accelerate the interaction of particle sizing agent with suspensions of cellulose fibres recently used polymers. In this case, use the derivatives of starch and water-soluble polymers, such as polyamidoamine.

Already described various sizing compositions comprising a sizing agent and an additive that promotes the preparation of dispersions.

The international application number WO 97/28311, published on August 7, 1997, simultaneously corresponds to a pending application US No. 08/594612 and currently abandonians application US No. 09/046019, partial continuation of which is, as stated above, this application. In published international application describes koatservata of this type, as used in the present invention in the composition of the emulsifier system for rosin sizing agents. This description says nothing about applying this to the of cerata for emulsification, dispersing or stabilizing sizing substances other types or other hydrophobic/water systems.

In the patent US 4240935 (issued in the name of Dumas) described a sizing composition for paper comprising ketonovy dimer, anionic dispersant, such as ligninsulfonate sodium, some water-soluble cationic resin and water. Cationic resin prepared from the products of interaction of epichlorohydrin with aminopolyamide, derivateservlet from dicarboxylic acid and polyallylamine containing two primary amino groups and at least one secondary or tertiary amino group. Another group of cationic resins are the products of interaction of epichlorohydrin with the reaction products of condensation of cyanamide or dicyanamide and polyallylamine that meet the formula, including such products as polyethylenepolyamine, polypropyleneimine and polietilenimine.

As in the patent US 4263182 (issued by the firm Aldrich), and in U.S. patent 4374673 (issued by the firm Aldrich) described aqueous sizing composition for paper in the form of dispersions, which consist essentially of fine particles reinforced rosin, water soluble or dispersible in water, cationic starch dispersant for rosin particles, anionic surfactant and water. R is slice between the properties of substances, proposed in these patents, due to the use of derivatives of starch of different types. In patent '182 describes the application of cationizing derivatives of starches, which are anionic derivatives of starch, modified by reaction with one of five groups cationicity resin or starch modified by reaction with water-soluble polyominoes resin containing epoxypropyl. In patent '673 use of cationic starch derivatives obtained by the reaction of starch with compounds containing amino groups, and groups capable of interacting with the hydroxyl groups of the starch, and this interaction involves the formation of covalent bonds. Describes the various stages of emulsification and preparation of dispersions, including the use of specific cationic starch dispersant.

In the patent US 4657946 (issued in the name of Rende and others) described composition for sizing paper comprising a sizing agent based on alkenylamine anhydride in emulsions containing cationic water-soluble vinyl polymers obtained stepwise polymerization, and surfactants which may be anionic, nonionic or cationic, where one of the cationic emulsifiers may constitute polydiallyldimethyl Manihari.

In the patent US 4861376 (issued in the name of Edwards and others) offers a stable dispersions with a high solids content metanovogo dimer, which used water-soluble carboxylic acid with a cationic derivative of starch, ligninsulfonate sodium and aluminum sulfate. In some examples, technically used further options include adding polydiallyldimethyl not so much as a component of the emulsifying system, but as a promoter.

In patents US 5318669 (issued by the company Dasgupta) and 5338407 (issued by the company Dasgupta) proposes a method and composition for increasing the strength of the paper in a dry condition without significant reduction in soft paper. In bleached wood pulp with a sizing composition and other additives separately or together add anionic polymer and cationic polymer. Anionic polymer can serve different harowie materials and karboksimetilirovaniya mucilage of legumes. Cationic polymer can serve as cationic harowie and vegetable glues other types of legumes, cationic acrylamide copolymers and resins obtained by the reaction of various polymers with epichlorohydrin.

In the patent US 5338406 (issued in the name of Smith) has a composition and method of improving the strength in the dry with the standing of paper, made from fibrous pulp unbleached pulp, particularly one which contains black liquor. This song is a polyelectrolyte complex, which includes at least one water-soluble linear cationic high-molecular polymer with a low charge density, has the specified lower characteristic viscosity and density of the charge, and at least one water-soluble anionic polymer, the charge density which is less than 5 mg·EQ/year Cationic polymer may contain synthetic polymers, such as copolymers of acrylamide, including copolymers of acrylamide and diallyldimethyl-manilaid. Anionic components may include those normally found in unbleached pulp, such as solubilization lignins and hemicelluloses, synthetic anionic polymers and anionic modified natural polymers. As an example of an effective anion mentioned ligninsulfonate sodium.

In the patent US 5393337 (issued in the name of Nakamura and others) offers a rosin emulsion sizing agent for paper manufacturing, including epoxydecane derived reinforced or non-amplified rosin, obtained by the reaction of rosin with an epoxy compound. This epoxydecane derivative of rosin on spargonet in-water emulsifier with a dispersing effect. This emulsifier with dispersing effect can serve as a low molecular weight surfactants, polymeric surfactants of various types and protective colloids such as casein, polyvinyl alcohol and modified starch used individually or in combination.

Despite industry efforts to create affordable and effective and stable dispersions and emulsions for paper sizing with relevant target properties, there are still many problems faced. Many polymers that are used for making a sizing dispersion inherent disadvantages. If, on the one hand, the molecular weight is too small, due to spatial effects final stabilization is impossible. If, on the other hand, the molecular weight for good spatial effect is high enough, the contamination ions can cause the formation of bridges between particles, which further during storage causes the emergence of rheological problems. In many cases, as it happens when using polymers, derivatizing from natural products such as starch derivatives, regulation of the molecular weight associated with for what runtime technological order, therefore, because of the significant trend towards bridging these hydrocolloids are of limited use. To prevent the occurrence of vysokotekhnologicheskikh properties, you should keep a low content of solids in the sizing dispersions.

The basis of the present invention is the use of koatservata. Two polymers with opposite charges are mixed in such proportions, which yields the third system, cationic colloidal koatservata which functions as an emulsifier or dispersant and stabilizes the emulsified or dispersed sizing agent. The use of such technical acceptance by adjusting the ratio between the amounts of polymers with opposite charges, forming the koatservata, enables more precise control of particle size, which plays an important role in the process of deposition of particles on the cellulose fiber. Vysokozaraznoe particles provide a more effective retention of the adhesive into the fibrous mass. Scanivalve stable koatservatov it is a sizing agent of the present invention have a high sizing efficiency and stability in the periods before use and during storage.

Used in the present description the term "scanivalve proclaime the General substance" means any sizing substance, able to glue products from cellulosic fibers, such as paper and cardboard, which, as the component does not contain rosin, except in those cases where the rosin or rosin sizing substance is injected specially in a mixture with neonatally sizing agent. Illustrating the classes of materials that are scanivalve sizing substances, and examples of specific types of sizing substances below.

Scope of the present invention covers coacervation system, which can be used for emulsification, dispersion and stabilization sizing emulsions and dispersions, as well as emulsions and dispersions, including simple oils such as mineral oil, and water phases, in the most simple variant with water. Typically, these systems include a mixture of anionic and cationic polyelectrolytes, which, when they are appropriately mixed, form insoluble colloidal koatservata. Such colloidal koatservata available for adsorption at liquid interfacial surface of the molten section or under normal conditions in a liquid state a sizing agent and water. When relevant, adsorption and shear rate in the aqueous dispersion medium may occur emulsification is receiveaudio substances, and the result can be double. If a sizing substance, such as AAA, at room temperature is in the solid state, cooling the emulsion causes the stability of the solid in liquid dispersion. If a sizing substance at room temperature is a liquid, as in the case of some alkenylamine the dimers or multiparae, then the result is the formation and preservation of emulsions. The koatservata adsorbs a lot of soft gel-like particles, which leads to increased viscosity of the interphase and the emergence of stability of another kind. In many cases, individual components koatservata not provide, apparently, the formation of a stable dispersion or emulsion, when they are by themselves or when they are added in a sizing substance or another of the stabilized composition. The particle charge can be adjusted by varying the ratio of polyelectrolytes, which form the koatservata. Representatives of some scientific schools insist on renaming these koatservatov it in polyelectrolyte complexes. These two concepts are identical, and one is based on the doctrine of the colloids, and the other comes from the polymer science. Not every polyelectrolyte must have solubility. One may be colloidal, and is another soluble. Since there is no need to use a true surface-active substances (i.e. forming micelles), these sizing systems can be more hydrophobic and can also include particles of a larger size.

Because koatservata of the present invention performs a function as a dispersant, disprivilege in liquid solid components, and emulsifier, which emuleret immiscible liquid, resulting in formation of a relatively stable dispersions and emulsions, hereinafter in the present description the koatservata of the present invention referred to as "koatservatnyh stabilizer".

The contents of all patents, patent applications and other publications, which are referred to in the present description, is included as a reference.

Summary of the invention

One object of the present invention offers a stable emulsified or dispersed acanfora composition comprising a hydrophobic phase and the aqueous phase, and this composition is stable cationic colloidal koatservatnyh stabilizer, koatservatnyh stabilizer includes anionic component and a cationic component and the anionic and cationic components are in such a ratio at which the Zeta-potential of this proclive the composition is at least about 20 mV.

Another object of the present invention offers a stable emulsified or dispersed acanfora a sizing composition comprising scanivalve sizing substance, stable cationic colloidal koatservatnyh stabilizer, and koatservatnyh stabilizer includes anionic component and a cationic component and anionic and cationic components are in such a ratio at which the Zeta-potential of this sizing composition is at least about 20 mV.

According to another object of the present invention offers a stable emulsified or dispersed sizing composition comprising a mixture of rosin sizing agent and neonatologia sizing agent, and this mixture sizing agent stabilized cationic colloidal koatservatnyh stabilizer, koatservatnyh stabilizer includes anionic component and a cationic component and the anionic and cationic components are in such a ratio at which the Zeta-potential of this sizing composition is at least about 20 mV.

Another object of the present invention proposes a method of preparing stable catio aktivnog neonatology sizing composition, including scanivalve a sizing agent and a colloidal koatservatnyh stabilizer, and this method includes the following stages: (a) preparation of cationic colloidal koatservatnyh stabilizer containing anionic component and a cationic component, in water and (b) the preparation of stable cationic neonatology sizing composition by preparing an aqueous emulsion or dispersion of a sizing agent with colloidal koatservata, and Zeta-potential of this composition is at least about 20 mV.

In addition, another object of the present invention proposes a method of manufacturing sized paper, including the use in the manufacture of sized paper sizing compositions comprising scanivalve sizing substance, stable cationic colloidal koatservatnyh stabilizer, and this koatservatnyh stabilizer includes anionic component and a cationic component and anionic and cationic components are in such a ratio at which the Zeta-potential of the sizing composition comprises at least about 20 mV.

Moreover, the object of the present invention is sized paper, which is glued neonatology sizing whom is azizia, including scanivalve sizing substance, stable cationic colloidal koatservatnyh stabilizer, and this koatservatnyh stabilizer includes anionic component and a cationic component and anionic and cationic components are in such a ratio at which the Zeta-potential of the sizing composition comprises at least about 20 mV.

Brief description of drawing

The drawing shows a graph illustrating the dependence of Zeta-potential (ξ) from the variation quantity is taken as a model cationic component (in this case polydiallyldimethyl) while maintaining at a constant level of 0.5 wt.%, content taken as a model anionic component (in this case, the sodium lignosulphonate).

Detailed description of the invention

The scope of the present invention are covered by the cationic koatservatnyh system, which can be used for emulsification and stabilization neonatally emulsions and dispersions, in particular neonatally sizing emulsions and dispersions. However, as described below, the scope of the invention covers also cationic koatservatnyh systems used to stabilize mixtures neonatally and rosin prokleivayutsya the emulsions and dispersions. Usually these koatservatnyh systems are a mixture of anionic component and a cationic component, which, when they are mixed in water in an appropriate manner and in adequate proportions, form in the aqueous phase of cationic colloidal koatservata. After this, such a colloidal koatservata available for adsorption at liquid interfacial surface of the molten section or under normal conditions in a liquid state a sizing agent or other hydrophobic organic phase. Under the simultaneous effect of shifting efforts on hydrophobic and aqueous phase is emulsified hydrophobic phase in the aquatic environment. As a result of further processing, for example by cooling or removal of solvent, the emulsion turns into a dispersion (solid in liquid). The koatservata adsorbed on the surface or at the boundary between the organic and aqueous phases in a multitude of soft gel-like particles, thereby increasing the viscosity at the interface, and providing excellent stability. Used in compositions according to the present invention koatservata suppresses diffusion of one liquid droplets in another, when they are emulsified. The positive charge of the colloidal particles sizing agent can be adjusted, p is the regulation of the ratio between anionic and cationic components, which form the koatservata, as shown on the graph presented on the drawing.

It is not necessary that both anionic and cationic water-soluble components were, if they are able to dispergirujutsja in the water. For example, one may be colloidal, and the other soluble. As any need for a true surface-active substances (i.e. materials, forming micelles) is missing, although they can be used, the stabilized compositions of the present invention, including koatservata are more hydrophobic and can also be characterized by larger particle sizes. This allows scanivalve sizing compositions have high stability and low foaming, in comparison with previously known sizing agents on the basis of surface-active substances, as well as targets viscosity and sizing ability.

Koatservatnyh components

Koatservatnyh stabilizer used for the preparation of a stable dispersion or emulsion of the hydrophobic phase in the aqueous phase. Its components must be able to form a dispersion and emulsion stability, sufficient to prevent any separation due to the undesirable effect of koatservatnyh comp is the component or dispersion or emulsion, including koatservatnyh component. Koatservatnyh stabilizer of the present invention has significant electrostatic stabilizing ability and resistance to shear. Those same properties of emulsions and dispersions stabilized with koatservata of the present invention.

In the regulation of pH values neonatally sizing substances which are of interest primarily as a hydrophobic phase emulsions and dispersions stabilized with koatservata of the present invention, there is no need. The present invention is advisable to use two polymer components for the preparation of koatservata, and not the regulation of pH. Usually the final charge of the product is determined by the charge koatservata when the final pH value. Charge koatservata is determined by the ratio between anionic and cationic components koatservata.

Below describes the components used to prepare koatservatnyh colloidal stabilizer, in addition to water. In a preferred embodiment, water is used in the minimum quantity, which usually allows us to simplify the implementation of manipulation and to provide effective education koatservata and the finished product, such as a preferred emulsion or dispersion for paper sizing.

Although koatservata contains two the opposite of the one charged component, for the reasons given below, the total charge of a sizing composition and contained koatservata corresponds cationic activity in the Zeta-potential of at least 20 millivolts (hereinafter mV). This means that the composition includes a cationic component for education koatservata and the excess cationic component to ensure cationactive the finished product. Thus in this method of preparing a sizing dispersion, which have a higher cationic charge than we get in most other ways. When adequate giving such charging characteristics they allow to increase a sizing effectiveness of this product in the sizing of paper products, including cardboard, target scanivalve sizing substances, in particular paper, processed in an alkaline or neutral conditions.

Anionic component

In a broad sense anionic component koatservata individually or in a mixture can be any anionic colloids, polyelectrolytes or surfactants of all types, are well known to specialists in this field of technology. Examples of anionic colloids are clay, silica and latex. Examples of anionic polyelectrolytes include polycarboxylate (per hour the activity, the polyacrylates, carboxymethyl cellulose, hydrolyzed polyacrylamides), polysulfate (in particular, polyvinyl sulphate, polietilensorbit) and polysulfone (in particular, polyphenylsulfone, ligninsulfonate). Examples of anionic surfactants include alkyl-, aryl - and alkylarylsulfonates, alkyl-, aryl - and alkylaminocarbonyl, alkyl-, aryl - and alkylarylsulfonate. Preferred alkyl residues contain from about 1 to about 18 carbon atoms each, aryl residues contain from about 6 to about 12 carbon atoms each, and alcylaryl residues contain from about 7 to about 30 carbon atoms each. Examples of such groups would include propyl, butyl, hexyl, decyl, dodecyl, phenyl, benzyl, linear and branched alkylbenzene derivatives, carboxylates, sulfates and sulfonates.

Preferred anionic components are polycarboxylate, polysulfate and polysulphonate. More preferred polysulphonate, preferably ligno - and ligninsulfonate, such as sodium salt, calcium salt, ammonium salt, iron salt and a chromium salt.

In this case, the preferred anionic component is a sodium lignosulphonate, in the present description, in some cases labeled as LSN, which was not italitan sodium hydroxide of this type, as those denoted as the product of N-3 or Wanin®'s firm Lignotech USA, Vargon, Sweden. Currently, the most preferred anionic component is a low molecular weight material, i.e. the product Wanin®S.

Cationic component

In a broad sense cationic component koatservata alone or in a mixture can be any polymers, colloids or surfactants, which individually are all of a type well known to specialists in this field of technology, if only they or their application would get koatservata possessing mentioned in this description of the corresponding Zeta-potential. Preferred cationic polymers, such as polyamine, polysulfonamide and polyamidoamine polymers. Polyamine can be primary amines, secondary amines, tertiary amines or Quaternary amines or may contain a mixture of amino groups with different activity, such as polyethylenimine.

Polymers that are particularly effective for the implementation of the present invention include homopolymers and copolymers, srednevekovaja molecular weight greater than about 5000, as it is determined by gel permeation chromatography. The molecular weight of the preferred polymers is less than about 500000, and bol is e preferably is in the range from about 125,000 total to approximately 350,000. These polymers should contain at least about 20% cationic functional groups, and in the preferred embodiment, 100% of the functional groups must have cationic activity. Preferred examples of the polymers are Quaternary polyamine, such as polydiallyldimethyl, the alkyl residue contains from 1 to about 6 carbon atoms, polyvinyliden etc.

In this case, the cationic component of the preferred type is a Quaternary polyamine, such as polydiallyldimethyl, the alkyl residue contains from 1 to about 6 carbon atoms, and in this particular case, the most preferred example is polydiallyldimethyl, which in the present description sometimes referred to as poly(DADMAC).

Other acceptable Quaternary polyamine include, for example, polymers of acrylonitrilebutadiene (ALMAH), metilgidroksipropitselyulozy (MTMF), acryloyldimethyltaurate, methacryloxypropyltrimethoxysilane, methacryloxypropyltrimethoxysilane and metallicametallicametall, including cationic copolymers of acrylamide with Quaternary polyamines.

The preferred molecular weight is chosen, in view of the Momus in accordance with the destination thickening effect, koatservata. Preferred characteristic viscosity preferred cationic polymer component of the present invention, in particular polymers poly(DADMAC)is from about 0.1 to about 2 DL/g, more preferably from about 0.5 to about 1.7 DL/g, and even more preferably from about 1 to about 1.3 DL/g, This corresponds to a wide range of viscosity solution of cationic polymer, from about 50 to about 5000 centipoise (CP), preferably from about 100 to about 5000 SP, and more preferably from about 1000 to about 3000 SP, and all measurements were made at a 20%dry matter content (viscosity by Brookfield viscometer was determined at 60 rpm and room temperature, about 25°).

Preferred in this case, the cationic component is a poly(DADMAC), which is marketed under the product name Reten®203 Hercules Incorporated, Wilmington, stdelivery. Product Reten®203 is sufficiently viscous to message 20%increase solution viscosity by Brookfield viscometer at about 2000 CP.

Preparation koatservatnyh stabilizer

For the preparation of the corresponding koatservata in the preferred embodiment, should use all the TAC or as much water how many are provided to create the aqueous phase. Although the order of introduction of the components forming the koatservata, the critical value is believed, has not, in the water in the preferred embodiment, the first step is to enter the least viscous of the anionic and cationic components. In the case where the anionic component is LSN, and the cationic component is a poly(DADMAC), in the preparation of the first mixture is first mixed with water LSN. The parameters relating to the mixing koatservatnyh components, the critical value do not have, if only they were sufficient for the preparation of homogenous mixture. As a rule, and in the preferred embodiment, the mixing is carried out at room temperature (about 25° (C) and normal pressure.

After thorough mixing the first mixture so that it has become almost uniform, with vigorous stirring, add the viscous component to obtain a second mixture. As in the previous case, the parameters of the mixture of decisive importance not have. In the case where the anionic component is LSN, and the cationic component is a poly(DADMAC), this poly(DADMAC) to introduce the second. In appearance this second mixture may seem quite heterogeneous, but in the process of homogenization with rosin it usually becomes more colloid and narodnoi. If necessary, through the homogenizer can also skip the koatservata to make it more homogeneous. This way allows to achieve good results.

Zeta-potential charge koatservatnyh dispersant usually depends on the ratio between anionic and cationic components that make up the koatservata. Similarly, the Zeta-potential of the final dispersion composition comprising rosin and koatservatnyh stabilizer, usually depends on the ratio between anionic and cationic components koatservata, as well as any residual charged functional groups of the other components of the emulsion or dispersion.

Charge koatservata and koatservatsija dispersion or emulsion can not be zero or close to neutral. Such a system is unworkable. For effective preparation of a stable dispersion of the charge must be moderate to vysokokalievogo. Zeta-potential plays an important role in the stability of the sizing dispersions. Zeta-potential is the potential at the interface between solids and liquids, and more specifically the potential difference on the way through the diffusion layer of ions surrounding a charged colloidal particle, which largely determines the stability of the colloid. Zeta-potentials can RA is read by electrophoretic mobility, namely, the speed with which colloidal particles move between charged electrodes placed in the dispersion, emulsion or suspension, including these colloidal particles. The value of Zeta-potential ranging from zero to 10 mV is usually an indicator of poor stability. The value of Zeta-potential 10-19 mV is indicative of a specific, but usually insufficient stability. The value of Zeta-potential of at least 20 mV, and preferably from about 25 to about 40 mV, serves as an indicator of moderate charge with good stability, and the value of Zeta-potential in excess of from about 40 to about 100 mV or more, it usually indicates excellent stability. Thus, the proposed according to the present invention, the emulsion or dispersion comprising a hydrophobic phase, aqueous phase and koatservata must have a Zeta-potential of at least 20 mV. Therefore, in a preferred embodiment, the charge koatservata and koatservatsija dispersion or emulsion must be visokoaktivniy, preferably the Zeta-potential is equal to at least about 25 mV, and more preferable at least about 40 mV. This appears to be consistent with improved electrostatic colloidal stability of the final product. Vysokoaktivnye the koatservata end forms a stable dispersion or e is ulsio, which in the case neonatologia sizing agent becomes the most strong electrical interaction with the fibers of the pulp.

The content and the ratio between anionic and cationic components used in koatservatnyh the stabilizer can be varied within a wide range, taking into account the different types of anionic and cationic components. Consider factors encompass the molecular weight and the characteristic viscosity of the components, the density of their respective charges, the specific type and quantity of the hydrophobic phase, such as reactive and erectionspeedo scanivalve sizing agent, which must be atomized in the final koatservatsija dispersion or emulsion of the composition, the target Zeta-potential and other factors associated with stability, ability to handling and performance characteristics that, given the present description, can be determined empirically without undue experimentation.

The final viscosity of the sizing composition should be such that the composition can be easily pumped without any coagulation when the solids content in the dispersion is from about 10 to about 50%. The final viscosity koatservatsija a sizing composition which should be sufficient for to prevent delamination of the dispersed solids. It is particularly effective in the preparation of more highly concentrated compositions, which have an inherent tendency to show an increased viscosity. In this wide range, the preferred viscosity is ready koatservatsija dispersion or emulsion of the composition should be from about 6 to less than about 250 CPs (viscosity by Brookfield viscometer, which is determined at 60 rpm), and more preferred is less than about 200 CP. In the compositions koatservatsija dispersion or emulsion of the composition, the concentration of dry matter in which approximately 35 wt.%, the preferred viscosity is from about 15 to about 60 JV, and when the dry matter content in the composition is about 40 wt.%, the preferred viscosity of from about 30 to about 80 SP.

The content and the relationship between koatservatnyh components used as starting materials for the preparation of koatservata, you can easily determine the inverse calculation of the required quantities in the finished koatservatsija dispersion or emulsion.

Koatservatnyh stabilizer forms the aqueous phase of the entire emulsion or dispersion system, which also includes a hydrophobic component. To prepare waterwater dispersant, having improved properties, which are discussed in the present description, the anionic component in the preferred embodiment, should be contained in an amount of from 0.1 to about 2 parts by weight, and the cationic component in the preferred embodiment, must contain in an amount of from 0.1 to about 5 parts by weight in terms of dry mass (i.e. the mass of dry matter) of this component in water koatservatnyh the stabilizer, and the rest of the stabilizer to the aqueous phase constituting from about 33 to about 90 parts by weight, is water. Cationic and anionic components in the preferred embodiment, are contained in such amounts that the ratio between the cationic and anionic components of greater than about 0.1. For this application it is suitable ratio, which provides the koatservata and stabilized finite dispersion or emulsion possessing mentioned in the present description acceptable Zeta-potential. So, for example, with regard to the system shown in the drawing, the value of this ratio, based on the content of 0.08 wt.% cationic component and 0.5 wt.% anionic component is 0.16.

More preferred koatservatnyh dispersant contains from about 0.3 to about 2.3 parts by weight of anionic component is a, from about 0.3 to about of 5.4 parts by weight of a cationic component, and the rest of approximately 92.3 to about 99,4 parts by weight, is water. The preferred value of the ratio between the amounts of cationic and anionic components is from about 0.6 to about 3.

Even more preferred koatservatnyh the stabilizer comprises from about 0.6 to about 1 parts by weight of anionic component and from about 0.9 to about 2 parts by weight of a cationic component when the value of the ratio between the amounts of cationic and anionic components from about 1.2 to about 2.6. The rest is water, which amount is from about 97 to approximately 98.5 parts by weight of

Scanivalve components of the hydrophobic phase

As neonatally components of the hydrophobic phase can be used any scanivalve hydrophobic materials that must be mixed with an aqueous phase to prepare a stable dispersion or emulsion containing the koatservata in accordance with the present invention. Non-limiting examples of such neonatally hydrophobic materials include oily water-insoluble liquids, such as (although their list is also not limited to) crude oil, mineral oil, hydrophobic organic solvents, monomers, that is s, as styrene and (among many others) monomers, which are latexes, as well as liquid sizing agent, which are discussed below. In addition, in the aqueous phase can be stably suspended hydrophobic solids, including, among many other hydrophobic solid materials, although their list is not limited to, clays, pigments, calcium carbonate, silicates, as solid a sizing agent, which are also discussed below.

Because effective emulsification and dispersion neonatally sizing substances one of the most interested industries are paper, which experiences them in a long-felt need, the present invention, the solution of which is of importance, are the emulsification and dispersion neonatally sizing substances, including, in particular, reactive sizing agent and directionspanel sizing agent, and combinations and mixtures of such neonatally sizing substances, as well as mixtures neonatally sizing substances with rosin sizing agents.

For processes of making paper at alkaline pH values in the technological conditions of the preferred reactive sizing agent based on alkylating dim the ditch (AAA) or alkenylboronic dimers or multimers and alkenylamine anhydrite (AA) a sizing agent. Can also be used combinations of these and other agents for paper sizing.

One of the preferred types of reactive sizing substances is 2-oxetanone sizing agent. 2-Oxetanone connection may include one β-lactonase ring, for example ketonovy dimer, or may include two or more β-Viktorovych rings, for example ketonovye multimer. As a 2-oxetanone sizing agent according to the present invention can be used alkylcatechols dimer, alkylcatechols of multimer, alkenylamine dimer, alkenylamine of multimer or a mixture of such dimers and/or multimers.

Technically available AKD sizing agent at a temperature of from about 20 to 30°Since, as a rule, are solid products, which are usually obtained by the reaction of two saturated remotemachine acid chlorides of fatty acids, such as acid chloride stearic acid and palmitic acid chloride acid. Examples include products Aquapel®364 and Hercon®70 supplied to the market by the company Hercules Incorporated.

Other 2-oxetanone reactive sizing agent at 35°are in a liquid state, and in the preferred embodiment, are liquids at 20°C. an example of such a liquid procliamed the substance is the product Precis ®2000, also manufactured by the company Hercules Incorporated. The 2-oxetanone connection, which at these temperatures have these target liquid characteristics include hydrocarbon substituents with inhomogeneities, which can be a branched alkali, the linear alkenyl or branched of alkenyl. Such liquid 2-oxetanone connections are usually a mixture of compounds, which include a noticeable percentage of the hydrocarbon substituents with inhomogeneities in the chemical structure of these substituents, such as side chains and/or carbon-carbon double bonds, i.e. bonds, constituent, in particular, at least about 25 wt.%, more preferably at least about 50 wt.%, and most preferably at least about 70 wt.%. Such liquid 2-oxetanone connection can be ketonovye dimers, ketonovye multimer or mixtures thereof.

Preferred 2-oxetanone are a mixture of compounds of the following General classes:

Ketonovye multimer usually represent a mixture, and a mixture of 2-oxetanone of multimers, as a rule, include the regioisomers of such multimeric compounds, the average value of n which typically ranges from about to about 8. Such a mixture of 2-oxetanone of multimers may also include some amount of 2-oxetanone dimers, i.e. in the above General formula (I), n denotes 0, which is a consequence of the implementation of the get method, usually used in obtaining 2-oxetanone of multimers. 2-Oxetanone dimers and multimer can be obtained by the reaction of monobasic acid component, such as fatty acids, with decarbonisation component, for example with a dicarboxylic acid.

The radicals R and R in the General formula for 2-oxetanone dimers and multimers by nature are essentially hydrophobic and may be the same or different. As a rule, they are acyclic, and in the preferred embodiment is a hydrocarbon residues with at least about 4 carbon atoms in the chain, preferably From about10-C26the remains, which in the preferred embodiment, selected from a number remotemachine (linear) or branched alkyl or remotemachine (linear) or branched alkenyl hydrocarbon substituents. Preferred R' denotes remotemachine alkyl, and From about2-C14the radical is preferred, and From about4-C8the radical is the most preferred. R' can also denote alicyclic residue(linear, branched or cyclic), containing 28-40 carbon atoms, usually derivationally of dicarboxylic32-C44the acid.

Reactive sizing agent on the basis of 2-oxetanone compounds and their receipt in the technology of sizing paper is well known. 2-Oxetanone sizing agent used in the present invention, including the preferred liquid 2-oxetanone connection can be obtained by known methods such as those described for solid ketonovyh of multimers in patent US 5685815, issued in the name for reporting and other

Alkenylamine anhydrides (AA), used when performing the present invention are well known and described, for example, SE Farley and R.B. Wasser in "The Sizing of Paper, Second Edition, edited by W.F. Reynolds, Tappi Press, 1989, cc.51-62. AA consist of unsaturated hydrocarbon chains containing side groups remains succinic anhydride. Usually liquid AA that are preferred according to the present invention, receive two-stage method using as starting material an alpha olefin. First olefin will someresult disordered movement of the double bond of the alpha-position. In the second stage isomerized olefin is introduced into reaction with excess maleic anhydride receiving end AAA this is taenia, which is shown in the following reaction scheme.

If stage isomerization to exclude, can be obtained AA, which at room temperature are in the solid state.

In the preferred embodiment, as raw materials use of alpha-olefins in the range from C14to C22that may be linear or branched. Considering the purpose of the present invention, more preferred AA obtained by reaction of maleic anhydride with olefins containing from 14 to 18 carbon atoms. Typical AA presented in US no 4040900.

A variety AAA technically available on the company Albemarle Corporation, Baton Rouge, PCs Louisiana.

Typical source olefins used in the present invention for reaction with maleic anhydride in obtaining AA include octadecan, tetradecene, hexadecene, Acadian, 2-n-hexyl-1-octene, 2-n-octyl-1-dodecene, 2-n-octyl-1-mission 2-n-dodecyl-1-octene, 2-n-octyl-1-octene, 2-n-octyl-1 none, 2-n-hexyl-1-mission 2-n-heptyl-1-octene.

Other typical hydrophobic acid anhydrides that can be stabilized koatservatnyh stabilizer of the present invention and which can be used as sizing agents for paper, include (though not limited to):

(I) the anhydrides of the acids of rosin (the m, for example, US 3582464);

(II) anhydrides, corresponding to the structural formula (I)

in which R1represent identical or different hydrocarbon radicals, and

(III) cyclic anhydrides of dicarboxylic acids, preferably conforming to the structural formula (II)

in which R2means dimethylpropyl or trimethylenebis radical and in which R3denotes a hydrocarbon radical.

Specific examples of anhydrides of formula (I) are myristoleic anhydride, politology anhydride, alerby anhydride and stearilovy anhydride.

Preferred anhydrides substituted cyclic dicarboxylic acids that meet the above-mentioned formula (II)are substituted anhydrides of succinic and glutaric acids. Specific examples of anhydrides of formula (II) are the anhydrides ISO - and n-octadecadienoic acids; anhydrides ISO - and n-hexadecylamine acids; anhydrides ISO - and n-tetradecanoate acid; anhydride dodecylamino acid; anhydride detailentry acid; anhydride acteylanthranilic acid anhydride and heptylphenol acid.

Directionspanel a sizing agent, which can be stabilized and dispersed or emulsified using koatservatnyh stabil the congestion of the present invention, include, for example, cationic polymer, an amphoteric polymer, and mixtures thereof. The preferred polymers are those obtained using at least one monomer selected from the group comprising styrene, α-methylsterol, acrylate containing ester Deputy, having from 1 to 13 carbon atoms, methacrylate containing ester Deputy, having from 1 to 13 carbon atoms, Acrylonitrile, Methacrylonitrile, vinyl acetate, ethylene and butadiene, and optionally comprising acrylic acid, methacrylic acid, maleic anhydride, esters of maleic anhydride and mixtures thereof, and an acid number less than about 80. Of those, more preferred are those polymers that are obtained using at least one monomer selected from the group comprising styrene, acrylate containing ester Deputy, having from 1 to 13 carbon atoms, methacrylate containing ester Deputy, having from 1 to 13 carbon atoms, Acrylonitrile and Methacrylonitrile.

Another class of compounds used as agents for paper sizing, which are well known in the art and which can be used according to the present invention comprise a hydrophobic organic isocyanates, such as alkylated isocyanates.

Other conventional agents is s for paper sizing, you can apply the present invention include alkylcarboxylic and alkylated melamine, such as sterilizovannye the melamine.

For traditional conditions of acidic pH values in the process of making paper directionspanel sizing agent, usually used in the form of a rosin sizing agents. Rosin sizing agent specialists in the paper industry is well known. Non-limiting examples of the rosin sizing substances described in many patents, among which we can point US 3966654 and 4263182 issued by the company Aldrich.

As mentioned above, the related patent applications (US No. 09/046019 and 08/594612) dedicated koatservatnyh systems for dispersion and emulsification rosin sizing agents. Such stable koatservatov it is rosin sizing agent can be used in the present patent application in mixtures with scanivalve sizing agents. Scanivalve and rosin sizing agent can be mixed in any desired proportions. Thus, in the present description is appropriate discussion rosin sizing agents.

Rosin in dispersed form may be a rosin any technically available types, such as extraction rosin, turpentine oil, Kanebo the ü, tall oil rosin, and mixtures of any two or more of these products in their crude or refined state. Preferred tall oil rosin and gum rosin. You can also use partially hydrogenated rosin, and polymerized rosin and rosin, which is treated in order to suppress crystallization, such as cooked or processed by reaction with formaldehyde.

Reinforced rosin, which can be used according to the present invention is a reaction product of joining components of rosin and an acidic compound containing the group

derivationally reaction components rosin with this acidic compound at elevated temperatures, from about 150 to about 210°C.

The number of acidic compounds should be such, which usually provides the enhanced rosin containing from about 1 to about 16 wt.% attached acidic compounds in terms of the mass of reinforced rosin. Methods of obtaining enhanced rosin specialists in this field of technology is well known (see, for example, the methods proposed and described in US 2628918 and 2684300).

Examples of acidic compounds containing groups

which m which may be used to obtain enhanced rosin, include alpha-beta-unsaturated organic acids and their available anhydrides, specific examples of which include fumaric acid, maleic acid, acrylic acid, maleic anhydride, taconova acid, itacademy anhydride, Tarakanova acid and citraconic anhydride. If necessary to obtain enhanced rosin can be used a mixture of acids. So, for example, to obtain dispersed rosin sizing substances according to the present invention can be used a mixture of the reaction product of the merger of acrylic acid and components of rosin and product fitting fumaric acid. Moreover, you can use a reinforced rosin, which was almost completely hydrogenosomal after the formation of the product of the merger.

In dispersed rosin sizing agents of the present invention can also be used in a variety of esters of rosin acids of this type which is well known to specialists in this field of technology. Acceptable example esters of rosin acids can serve as rosin, esterified as described in US 4540635 (issued in the name Ronge and others) and 5201944 (issued in the name Nakata and others).

If necessary, the non-amplified and reinforced rosin and esters of rosin acids can be filled using well-known napolnitel the th for them, such as waxes (in particular, paraffin wax and microcrystalline wax); hydrocarbon resins including those derived from hydrocarbons and terpene oil, etc. Is carried out by mixing in the melt or mixing in solution of rosin or reinforced rosin and from about 10 to about 100 wt.% filler, calculated on the weight of rosin or reinforced rosin.

You can also use a mixture of reinforced rosin and non-amplified rosin and mixtures reinforced rosin, non-amplified rosin, esters of rosin acids and filler for rosin. A mixture of enhanced and non-amplified the rosins may include, in particular, from about 25 to 95% enhanced rosin and from about 75 to 5% non-amplified rosin. A mixture of reinforced rosin, non-amplified rosin and filler for rosin may include, in particular, from about 5 to 45% enhanced rosin, from 0 to 50% rosin and from about 5 to 90% filler for rosin.

Preparation koatservatsija dispersion or emulsion composition

After an appropriate choice of the combination of the aqueous phase and its koatservata and their mixture as set forth above, together with the water koatservatnyh stabilizer can homogenize AAA (in the form of either liquid or solid) or other sizing substance, or other component of the hydrophobic phase is stable is oppozitsii. If liquid, no heating is required. On the other hand, in the case of solid AAA before the introduction of this AAA aqueous phase must be heated to a temperature exceeding its melting point. The koatservata usually provides emulsification and stabilization of the cooled product.

After the formation of the water koatservatnyh phase in this aqueous phase can homogenize the hydrophobic phase. If under normal conditions the hydrophobic phase is a liquid, or if the temperature of the processing, it is a solid, it is dissolved in a solvent to obtain an organic phase for the process with the solvent or during the high temperature process, it is melted, usually at carrying out homogenization at high temperature and under high pressure. The koatservata provides emulsification and stabilization of the final emulsion or (in the case of cooling) of the final dispersion.

The following describes the General method of preparation of stable emulsion or dispersion, preferably intended for use in the form of a composition for sizing paper in accordance with the present invention, which includes a sizing substance or another hydrophobic phase, emulsified or dispergirovannoyj and stable koatservata, although koatservatnyh stabilizer and a sizing substance can is to be cooked in any other way, acceptable for preparation of the target product.

In method or a method with a solvent, which is often used in the case of rosin sizing substances, when rosin sizing agent must be mixed with scanivalve sizing substances, the composition of the present invention is prepared in the form of a dispersion of the implementation stages (I) dissolving a sizing agent in an organic solvent not miscible with water, to obtain an organic phase; (II) preparation of the aqueous phase of cationic colloidal koatservatnyh stabilizer by mixing with water anionic component and a cationic component in such relative amounts and with such speed shift, which is sufficient for the preparation of cationic colloidal koatservata; (III) homogenizing the organic phase and the aqueous phase koatservatnyh stabilizer with obtaining emulsion and (IV) removal of the emulsion of an organic solvent to obtain a dispersion. The procedure of stages (I) and (II) can be reversed or can be done simultaneously. Moreover, this processing can be performed as a periodic process, a continuous process or as a combination thereof.

More specifically, in the preparation of rosin or neonatology the dispersion process with dissolve elem in water-immiscible organic solvent initially dissolve the sizing agent. In cases of rosin and neonatally sizing substances typical solvents can be, for example, benzene, xylene, methylene chloride, chloroform and 1,2-dichloropropane. You can also use other solvents that are compatible with the target product and the sizing of paper. If necessary, you can use a mixture of two or more solvents. Choose a solvent, as a rule, should not have reactivity against components of the aqueous dispersion, which ultimately want to cook.

Prepare a mixture by using a solution of an organic phase and koatservatnyh the aqueous phase. Then essentially unstable mixture is treated by exposure to shear forces sufficient to obtain almost stable emulsion. Processing with sufficient shear force is usually carried out using a homogenizer, although the presence of koatservatnyh stabilizer of the present invention allows the use of considerably less complicated equipment such as a mixer Waring®. However, on an industrial scale transmittance (at least once) unstable water mixture through the homogenizer at room temperature and under a gauge pressure in the range of from about 7 (100 psig) to about 560 kg/cm2(800 pounds per square inch), preferably from about 140 (2000 pounds/square inch) to about 210 kg/cm2(3000 psig), typically provides obtaining practically stable emulsion.

After that, the emulsion of the organic solvent as component of this emulsion are removed, in particular, the Stripping by vacuum distillation, thus obtaining almost stable aqueous dispersion. These stages are presented in US no 3565755.

Next, the common technology used in the implementation of the high-temperature method or the method described in relation to the preparation of a sizing composition of the present invention in the form of a dispersion. This General method involves the following stages (I) heating the AAA or other neonatologia or rosin sizing agent, or other hydrophobic phase as a component to a temperature sufficient to melt this sizing agent; (II) preparation of the aqueous phase of cationic colloidal koatservatnyh stabilizer by mixing with water anionic component and a cationic component in such relative amounts and with such a shear force, which is sufficient for the formation of cationic colloidal koatservata; (III) mixing the molten component with water koatservatnyh stabilizer to obtain a mixture; (IV) the impact of names from stage (III) shear force, sufficient for the formation of the emulsion, and (V) cooling the emulsion from step (IV) to obtain the dispersion. The procedure of stages (I) and (II) can be reversed or can be performed simultaneously, and the stage of mixing (III) can be combined with the stage of emulsification (IV). Furthermore, all stages can be implemented as a periodic process, a continuous process or as a combination thereof.

More specifically, the preparation of the dispersions according to the present invention the implementation of the high-temperature method, a solid component is heated to a temperature exceeding its melting point. When solid sizing substance is, for example, the AAA, the preferred heating to at least about 45°s, and more preferably up to about 70°With, i.e. to a temperature at which it becomes less viscous. In a preferred embodiment, the molten component is injected as koatservata, homogenizer, in which homogeneous mix and emuleret at a temperature above their melting point, obtaining practically stable aqueous emulsion. By using a homogenizer provides acceptable impact with sufficient speed shift. Thus, the transmittance (at least once) the mixture through a homogenizer under a gauge pressure of from about 70 (1000 lbs/sq. is UIM) to about 560 kg/cm 2(8000 psi), preferably from about 140 (2000 pounds/square inch) to about 210 kg/cm2(3000 psig), typically provides obtaining practically stable emulsion which upon cooling forms a stable dispersion. Selection pressure is within the competence of a person skilled in the technical field.

The information below refers to the preferred example in this case of the variant, in which the anionic component is a sodium lignosulphonate (LSN), such as the product Wanin®S, and the cationic component is poly(DADMAC), such as the product Reten®203, which has a dry matter content of about 20% and a characteristic viscosity of 1.3-1.5 DL/g Anionic component may be contained in an amount of from 0.1 to about 2 wt.%, the content of the cationic component may be from about 0.1 to about 5 wt.%, and the value of the ratio between the quantities of the cationic component and the anionic component is greater than about 0.1, which allows us to achieve the target Zeta-potential of at least 20 mV for koatservata and stable finished product. The hydrophobic phase as a component may be contained in an amount of from about 10 to about 60 wt.%. All weight percents indicated in terms of percentage retained the e dry weight (i.e. on the weight of dry matter) of this component in the finished stable emulsion or dispersion of the composition. The rest is water.

The preferred content is from about 0.2 to about 1.5 wt.% for anionic component and from about 0.2 to about 3.5 wt.% for cationic component when the value of the ratio between the amounts of cationic and anionic components from about 0.6 to about 3.0, and when the content of the hydrophobic component in an amount of from about 20 to about 55 wt.%.

More preferable content of the components is from about 0.4 to about 0.6 wt.% for anionic component and from about 0.6 to about 1.3 wt.% for cationic component when the value of the ratio between the amounts of cationic and anionic components from about 1.2 to about 2.6 and when the content of the hydrophobic component in an amount of from about 35 to about 50 wt.%.

These values contents and ratios may vary when using anionic components other than LSD, and cationic components other than the product Reten®203. The use of these components at specified intervals and ratios should provide a stable dispersion or emulsion with sufficient viscosity for effective the x homogenizing and formation of a stable dispersion or emulsion of the composition. The use of more low molecular weight poly(DADMAC), such as a product characteristic viscosity which is about 1.0 DL/g, gives the opportunity without any of the problems associated with viscosity, to achieve a higher content of cationic polymer. This allows you to cook more cationic system.

Emulsification such koatservatnyh system is quite advantageous also from an energetic point of view. For the purposes of emulsification can be applied even mixer Waring®although homogenization is more effective as it was installed, when using the Tekmar homogenizer®(firm Tekmar Company, Cincinnati, and even more effective when using homogenizer (Manton-Gaulin®(company APV Gaulin Inc., Wilmington, pieces Massachusetts).

In stable koatservata emulsion or dispersion composition of the present invention in amounts and with the use of technology, well-known specialists in the paper industry, it is possible to introduce other additives such as alum, used to reduce the viscosity and additional stabilization of the composition, defoamers, biocides and other preservatives.

A sizing composition in the form of a dispersion or emulsion is used in the manufacture of paper which are glued such a composition, usually in the form of obuvki for forming a fibrous paper material, used in the manufacture of sized paper. However, the composition of the present invention can also be used as a tool for surface treatment or adhesives to the outer sizing by applying to the surface of the paper after its formation, sizing press or other equipment acceptable for the application, using the application of technology, well known to specialists in this field of technology.

As described above, in the preparation of sizing compositions using koatservatnyh stabilizer of the present invention with scanivalve sizing agents can be mixed sizing composition on rosin basis. When applying rosin sizing substances is usually injected alum or other equivalent aluminum compounds such types as used for making paper. When koatservatnyh dispersion of the present invention as an adhesive for gluing in the mass use rosin mixed with other, nacanieli sizing substances or when it is used as adhesive for the outer, surface sizing, the sizing composition of the present invention can type alum or cash equivalents or, more typically, alum or its equivalent can enter it in the paper a lot as about the practical component. When alum or equivalent is mixed with the composition, alum or their equivalents may be contained in amounts up to about 50 wt.% in recalculation on weight of a composition comprising alum. When determining required to apply the amount of alum or its equivalent basis are the type of alum or equivalent grade processed paper, the number of applied sizing agent and other factors well known to specialists in this field of technology. In the case of unbleached forming paper systems, for example when adding a fibrous mass in the form of a separate component, alum or its equivalent is normally used in amounts less than 1 wt.% in terms of dry weight of the fibrous semi-finished product, and typically in amounts from about 0.1 to about 0.8 wt.%.

Stable koatservata sizing composition of the present invention are used in amounts which are determined by the target consumer requirements for the sizing depending on the desired degree of sizing, varieties of paper, the type of the original wood pulp used for paper production, and other factors well known to specialists in this field of technology that is easy to set empirically. Usually a sizing substance used in the minimum quantity necessary for the achievement of the target sizing, the relevant technical requirements.

When in the process of making paper sizing composition is administered to the sizing in the mass, in the preferred embodiment, it is used in an amount of from about 0.025 to about 1 wt.% in terms of the dry residue of the fibrous mass.

When the composition of the present invention is applied as an adhesive to the outer surface sizing, in the preferred embodiment, this composition is used in amounts from about 0.01 to about 1%, calculated on the dry weight of the paper web.

Testing padding on the method of firm Hercules

Recognized test method for determining the operational properties of the sizing, developed by the company Hercules; it is published in the journal of Pulp and Paper Chemistry and Chemical Technology, edited by J.P.Casey, volume 3, cc.1553-1554 (1981), and the standard T Association of the pulp and paper industry (USA) (TAPPI). According to the test method of sizing the company Hercules degree water sizing, which is provided in the paper is detected by determining the change in the reflectivity of the surface of the paper as a result of penetration of an aqueous solution of the dye with the opposite surface side. In the circle on the upper side of the paper contains an aqueous solution of the dye, for example naftovogo green, 1%formic acid, fotoelektricheskie determined by changing the reflectivity of the bottom surface.

Test duration limit by choosing an appropriate endpoint, in particular by reducing the reflectivity of 20%, which corresponds to 80%reflectivity. Sensor time shows the time (in seconds) reaching the end point of the test. Over long periods of time correspond to increased operational quality sizing, i.e. increased resistance to the penetration of water. For unsized paper "breakthrough" is usually noticed at 0 C for lightly sized paper usually record the time from about 1 to about 20, in the case of moderately sized paper time is from about 21 to about 150 C, and for a well-sized paper, it is from about 151 to about 2000 C.

EXAMPLES

The essence of the present invention is further described with reference to the following specific non-limiting examples.

In all cases, unless otherwise specified, in these examples, the preparation processes koatservata and stable koatservata compositions was carried out at room temperature (about 25° (C) and under normal pressure. In each of the examples of specific technological details are indicated in cases where they were important; the same applies to the respective properties and the results of research.

In all cases, if you do not specify the other in the examples under the percentage of components is implied mass percentage, calculated on the dry matter stabilized koatservata composition (in particular, in % of dry product Reten®203). The water content expressed in mass% calculated on the weight of the hydrophobic water-koatservatnyh composition. The viscosity was determined in centipoise (SP), it represents the viscosity at a rotation speed of 60 rpm, which is measured using Brookfield viscometer®LTV (firm Brookfield Engineerig Laboratories, Inc., Stauton, pieces Massachusetts). The pH values were determined using and pH meter.

The charge of the particle dispersion, which is called the Zeta-potential (DP)was determined with the help of the device Lazer Zee®Meter models 501 (Pen Kem Inc., Bedford hills, PCs, new York. In all cases, unless otherwise stated, measurements were carried out by diluting 1 or 2 drops of the emulsion or dispersion 100 ml of deionized water without pH regulation. If you specify different pH values, the pH up to a specified lower value made by adding NaOH or H2SO4.

As far as can be judged by the positive values of DP, glue particles are cationic even in the alkaline range. The obtained values of DP indicate the stability of the dispersion is from good to excellent.

Example 1

Liquid alkenylamine the initial dimer

In this example, the emulsion alkenylamine dimer/koatservata prepared using liquid alkenylamine dimer. Received the following composition:

liquid alkenylamine dimer (Precis®787)52,5 g
product Wanin®S, LSN1,75 g
product Reten®203, 19.3% of dry matter10,88 g
deionized water284,87 g
Only350 g

This is consistent with the koatservata prepared from a 0.5% LSN and 0.6% product Reten®203 (in terms of 19.3% solids product Reten®203).

Initially, water was dissolved LSN. Then was added the polymer Reten®and stirred. Later in intensively mix the aqueous phase was poured liquid alkenylamine dimer, and stirring was carried out for 10-second period in the dispersing device Tekmar®. Speed dispersing device Tekmar®increased to maximum and the influence of shear force at this rate continued for two minutes. Particle diameter of the finished emulsion was $ 4.3 μm, final dry matter content was equal to 15.0, and the pH value of 2.8. Viscosity according to Brookfield in / min net and 60 rpm was less than 9 SP. When it is assumed long-term storage, this value of viscosity is too low for practical use. However, it would be excellent for use in the emulsification at the factory. The sample was left to stand. After 3 weeks I noticed some separation, but the sample could again shake and easy enough to get re-dispersion. Low viscosity indicated on the attainability of higher dry matter content.

This product had the following high values of cationic charge:

pHPD, mV
3,2+104,7
4,6+88,1
6,2+59,9
7,7+53,1

This contrasted with the properties of the most stable cationic starch alkenylboronic dimeric systems, which had much lower values of the Zeta-potential of about +10 mV.

Example 2

This example is a repetition of example 1 with a higher concentration of polymer. In this case, the concentration of the product Reten®203 was 1.2%. The actual components were:

liquid alkenylamine dimer (Precis ®287)52,5 g
product Wanin®S, LSN1,75 g
product Reten®203, 19.3% of dry matter21,76 g
deionized water273,99 g
Only350 g

The total dry matter content in this sample was 16.5%, the pH value was equal to 2.3 and a viscosity of 15 CP. This increased the viscosity of the sample seemed to be much more resistant to phase separation after standing for 3 weeks, than the sample of example 1. Cationic charge was still high, as evidenced by the following data:

pHPD, mV
the 3.8+100,1
of 5.4+75,3
6,3+67,0
7,7+20,5

Example 3

This example is a repetition of example 1, except that sodium lignosulphonate was replaced by calcium lignosulfonate. Received the following composition:

liquid alkenylamine dimer (Precis®787)52,5 g
the calcium lignosulfonate, BFV1,75 g
product Reten®203, 19.3% of dry matter0.88 g
deionized water284,87 g
Only350 g

Properties:

The total dry matter content of 15.9%

the pH of 2.7

The particle size 2492 nm

The viscosity at 60 rpm 9 JV

pHPD, mV
5,0+59,4
6,0+38,4
7,0+32,6
8,0+34,2

The viscosity still seemed low, and the diameter of the particles was smaller. When used sodium lignosulfonate and calcium lignosulfonate, Zeta-potential was also lower. After three weeks noted a bundle, which was easily fixed by re-dispersion.

Example 4

This example is similar to example 1, except that achieved a higher concentration of dry matter. Received the following final composition:

liquid alkenylamine dimer (Precis®787)105,0 g
product Wanin®S, LSN1,75 g
product Reten®203, 19.3% of dry matter10,88 g
deionized water243,25 g
OnlyProperties:

The total dry matter content of 29,8%

The particle size 2492 nm

The viscosity at 60 rpm 11 JV

This example shows that the transition from approximately 15%of the dry matter content to approximately 30%increase caused only a minimal increase in viscosity.

Example 5

This example is similar to example 4, except that achieved a higher concentration of dry matter. The final composition was based on 0.5% LSN and 0.6% product Reten®203. A composition was prepared in such a way as to achieve about 40%of the final dry matter content:

liquid alkenylamine dimer (Precis®787)136,15 g
product Wanin®S, LSN1,75 g
product Reten®203, 19.3% of dry matter10,88 g
deionized water201,22 g
Only350 g

Properties:

The total dry matter content of 38.9%

The particle size 2368 nm

The viscosity at 60 rpm 33 JV

pHPD, mV
a 3.9+83,8
6,4+52,6
7,7+53,9
8,9 +26,9

The results of determining the stability to thermal aging at 32°With:

2 weeks 22 JV

3 weeks 22 JV

The results of this experiment show that approximately 40%dry matter content is possible and what is high dry matter content in the aging process in 32° gelatinization is.

Example 6

This example is similar to example 5, except that achieved a higher concentration of dry matter. Received the following final composition:

liquid alkenylamine dimer (Precis®787)171,15
product Wanin®S, LSN1,75
product Reten®203, 19.3% of dry matter10,88 g
deionized water166,22 g
Only350 g

Properties:

The total dry matter content of 48.6 per cent

The viscosity at 60 rpm 270 SP

pHPD, mV
4,2+75,4
5,9+42,9
7,9+24,5

The results of this experiment show that it is possible to approximately 50%dry matter content and it could b is to be further optimized.

Example 7

This example illustrates the use of another lignosulphonate, sodium lignosulphonate N-3, available on the company Lignotech USA. Received the following final composition (koatservata 0.5% LSN and 1.1% product Reten®203):

liquid AAA (Precis®2000)66.6 g
the product N-3, LSN1.0 g
product Reten®203, 19.3% of dry matter11,48 g
deionized water120,92 g
Only200 g

Properties:

The total dry matter content of 34.5%

The viscosity at 60 rpm 39 SP

The results of determining the stability to thermal aging at 32°With:

1 week 37 JV

2 weeks 37 JV

3 weeks 39 SP

4 weeks 34 JV

The results of this experiment show that to obtain products with a stable viscosity can be used other lignosulfonates.

Example 8

Solid AAA

This example shows how to prepare a dispersion AAA using koatservatnyh aqueous phase and solid AAA. Received the following composition for a system with 30% dry matter, containing a koatservata 0.5% LSN and 1.3% poly(DADMAC) (product Reten®203):

LSN solid AAA (Aquapel 364) of 112.8 g
product Wanin 48F, 49,0%4,08
product Reten 203, a 20.2% dry matter25,74 g
deionized water257,38 g
Only400 g

600-ml chemical beaker equipped with a magnetic stirrer, was loaded with water. Added LSN and mixed. After this was added and mixed cationic polymer Reten®203. Chemical beaker and contents were heated on a hot plate to about 70°and while heating the aqueous phase was continued to stir. At about 70°With added AAA in the form of flakes and melted while stirring. After melting the mixture was placed ultrasonic probe device for ultrasonic treatment Branson model 450) and treated with ultrasound for two minutes. The product covered while stirring speed was cooled. At room temperature the product was filtered into the vessel through a filter with a cell size of 226 μm. He was homogeneous with a bright white color. The filter was clean (no precipitation is not delayed).

Properties:

The total dry matter content of 28.7%

The viscosity at 60 rpm 90 SP

the pH of 2.1

The particle size 1372 nm

pH2,1+55,9
3,5+61,0
5,0+78,3
6,6+48,1
8,3+57,1

Example 9

The product from example 8 was titrated alum to determine, could decrease the final viscosity while maintaining good stability. The amount of alum was expressed in terms of the variance in General. Received the following results:

Alum,% vasc.
0100 SP
0,163 SP
0,260 SP
0,363 SP
0,465 SP
0,563 SP

At 0.5% of alum product still looked quite stable and homogeneous. The results of this experiment show that regulation of the rheological properties can be used effectively then add alum.

Example 10

Koatservatnyh emulsion with solid AAA was prepared at about 20%dry matter content and when the content in the koatservata 0,5% LSN and 1.3% polymer Reten®203, as described above in example 8. The product was white and homogeneous when the final dry matter content of 19.2%. Its viscosity was 33 JV, at room temperature it was quite stable. The sample was kept at 32°in a drying Cabinet, within a week he was ultinationals. To prevent this gelatinization, which is associated with the hydrolysis alkylating dimer could be added alum.

Example 11

AA sizing substance

When in the paper industry used AA sizing substance, prepared from the emulsion is so short-lived that typically, such emulsions are prepared in the enterprise consumer. Stability requirements are minimal, because the product is usually used within a few hours after cooking.

For emulsification AA can be used koatservata of the present invention. This is illustrated below on the following original songs:

product AAA 10033,0 g
product Wanin®S (LSN)1,25 g
product Reten®203, 20.8% of dry matter15,70 g
water200,05 g
Only250 g

The koatservata was prepared as described in example 1, and instead of AAA as a sizing agent applied AA. This AA poured in koatservatnyh aqueous phase is at a high shear rate with stirring in a Waring mixer ®within 10 C. Next, the mixture was treated with ultrasound for 2 min at a power of 160 watts in a device for ultrasonic treatment Branson 450. It is necessary that the emulsion was sufficiently liquid and flowing and had a stable for a much longer time than usual AA emulsion. The final dry matter content was 15.2 per cent.

Example 12

Flexible adhesives (mixture)

Such sizing systems consist of mixtures of different sizing dispersions. Of particular interest are mixtures of a sizing dispersion comprising AKD and rosin. Presented in the following table 2 a mixture was prepared from rosin adhesive prepared using koatservata as set forth in the present description (Ultra-pHase®available on the company Hercules Incorporated), and AAA adhesive (product Ultra-AKD, produced by the company Hercules Incorporated), also prepared using koatservata as set forth in the present description. To increase the stability of the AAA part of the alum did not apply. This could contribute stability to thermal aging. The data in table 2 show that all emulsions were stable enough at room temperature, but two samples with a high content of AAA, a and B, after 4 weeks of thermal aging at 32°With ultinationals.

The term "steep the EIT in table 2 imply a pseudoplastic-type steepness, which reflects the dependence of the logarithm of viscosity on the logarithm of the shear rate. The higher the absolute value of the slope, the more intense flocculation and the lower the stability of the dispersion. The lower the absolute value of the slope, the better the dispersion.

The value of k corresponds to the segment slanting line on the y-axis, which is an indicator of viscosity at rest. A smaller value of k indicates a better dispersion, however, if the value of k is too small, about 5, in the composition of the precipitation occurs.

To determine pseudoplastic-type slope m and the viscosity at rest k emulsion sizing substances viscosity by Brookfield measured at two shear rates at 12 and 60 rpm, and the values of m and k calculated based on the following method.

(a) Before measurement the sample without mixing is placed in a bath with a constant temperature of 25±1,0°C. the dispersion may be non-Newtonian fluid, any mixing of the sample before measurement can affect the results of the viscosity measurements.

(b) After reaching the equilibrium temperature of a sample of 25±1°With the lid of the sample vessel is removed and placed within it a shaft No. 1 viscometer Brookfield. A shaft configured for rotation speed 12 rpm 12 rpm), allow you to rotate within the roughly 1 min, and then read the testimony.

(C) the Speed of change, bringing it to 60 rpm, and the shaft give the opportunity to rotate for approximately 1 min (60 rpm), and then read the testimony. If readings are outside the upper limit of the range, the measurements are repeated with the use of shaft №2 at a speed of 60 Rev/min

Table 1 shows the viscosity ranges at 12 and 60 rpm When the ranges are combined, it is preferable to make measurements at the top of the range, using the shaft of the smallest rooms, which allows you to get readings within 10 and 90.

Table 1
rpmShaft No.FactorViscosity range
12LV155-450 SP
60LV1110-90 SP
60LV2550-450 SP

(g) using equation 1 to calculate the viscosity at 12 and 60 rpm

(d) using equation 2 calculate the value of m, "pseudoplastic-type slope", and using equation 3 to calculate the value of k, "viscosity in repose.

Calculations

The number of the e reading × F = the observed viscosity in centipoiseThe EQ. (1)

where F denotes the ratio shown in table 1,

1,43 × [log (n60/n12)]=mThe EQ. (2)

where n60 denotes the viscosity at 60 rpm, SP,

n12 denotes the viscosity at 12 rpm, SP,

m denotes a pseudoplastic-type a slope.

antilog [log n12 - (m × log 12)]=kThe EQ. (3)

where n12 denotes the viscosity at 12 rpm, SP,

m denotes a pseudoplastic-type steepness

log 12=1,079,

k denotes the viscosity at rest.

Table 2
Product Ultra-pHase®/AAA, 15% dry matter
Ultra-pHase®Ultra-AKDSampleViscosity (CP)Dry matter (%)The steepnessThe value of k(JV)Viscosity (CP) after 4 weeks
25%75%And1015-0,43949gelatine.
35%65%B1015-0,29531Latin.
50%50%In915-0,3402910
75%25%G815-0,663928

Example 13

You can also use the system sizing agent of the rosin/koatservata Ultra-pHase®and AAA, stable starch (product Hercon®79 company Hercules Incorporated). For example, the following data of table 3 demonstrate good stability of the adhesive until the ratio of rosin/AAA 35/65. It should be noted that all of these mixtures were prepared at 15%dry matter content and what they have stood the test of stability to shear stress.

The test for resistance to impact of shift spent the impact on the dispersion or emulsion to high shear rate using mixer Waring®configured on high speed for 30 s, after which the dispersion or emulsion was filtered to see, does filter some coagulate. The same sample was subjected to this test five times. While the presence of any of coagulate during any of these five tests were noted. This indicated that the composition was stable to shear stress. It had the t important taking into account the perspective of application in which the composition, as a rule, subjected to compression.

Table 3
Product Ultra-pHase®/AAA, 15% dry matter
Ultra-pHase®Hercon®79SampleViscosityDry matter, %The steepnessThe value of k (JV)Viscosity (CP) after 4 weeks
25%75%And4415-0,00946130
35%65%B2415-0,1554427
50%50%In2715-0,1685334
75%25%G1615-0,2494116

Example 14

The emulsion of mineral oil, prepared with the use of koatservata 0.5% LSN/0.6% product Reten®203

Mineral oil was emulsiable in water using koatservata made of lignosulfonate and poly (DADMAC) (polymer Retensup> ®203). Received the following composition:

mineral oil Drakcol®19
(the company Penreco, Karns-
City, pieces Pennsylvania)84,75 g
product Wanin®48F, LSN, 49% dry matter2,55 g
product Reten®203, 20.7% of dry matterof 7.25 g
deionized water155,45 g
Only250 g

LSN was dissolved in water. To the solution was added to the polymer Reten®203, after which the dispersion for 10 conducted with ultrasonic stirring (at a power of 160 watts). The water phase was added to mineral oil with subsequent 2-minute ultrasonic agitation. The resulting white emulsion was filtered through a filter with a cell size of 226 μm and stored. The product had the following rheological properties Brookfield:

rpmViscosity (CP)
665
1255
3048
6042

Is pseudoplastic-type steepness was -0,177 that pointed to x the good stability of the emulsion, and the value of the segment k was equal to 88 SP, indicating a good viscosity. Droplet size was measured, 1814 nm.

Example 15

The emulsion of mineral oil, prepared with the use of koatservata 0.5% LSN/1,3% product Reten®203

The experiment was carried out analogously to example 14, but using twice the amount of polymer Reten®203.

This product had the following rheological properties Brookfield:

rpmViscosity (CP)
6135
12120
30107
6093

Pseudoplastic-type slope was -0,150, the value of k was equal to 177 SP, the particle size was equal 2297 nm.

These properties point to the stability of the emulsion of oil in water. The data of examples 14 and 15 show that using koatservatov it can be easily prepared as illustrated, emulsion oil in water.

Example 16

The difference of this invention from the technical solution according to the patent US 4240935, issued in the name of Dumas

Prepared two samples: one, in accordance with the present invention, using koatservata, and one in accordance with the patent, issued in the name of Dumas, in which the koatservata not note is issued, and cationic polymer was added later with high shear. Conducted the following experiments.

A. According to the present invention

Composition:

AAA Aquapel®36434,5 g
product Wanin®48F (49% solids)2,55 g
product Reten®203 (20.7% of dry matter)of 7.25 g
alum (38%)0.66 g
deionized water205,04 g
Only250 g

Lignosulfonate (product Wanin®) was diluted with water, was then added to the polymer Reten®203 and stirred with a magnetic stirrer to obtain koatservata. This aqueous phase was heated to 70°C. When approximately 65°C was added a solution of alum and AAA. When AAA melted, mix for 2 min were treated with ultrasound (at a power of 160 watts). The resulting homogeneous white low-viscosity dispersion was stirred to cool to room temperature. Then it was filtered through a filter for paint with cell sizes of 226 μm and stored. The filter was clean, did not show any delayed particles.

Observations

The average value for 5 definitions Zeta-potential was, as to be ivali, +71,9 MB.

Later, one day after the selection of the sample, it looks like a pretty good dispersion, no signs of sludge.

The product was diluted to 10%of the dry matter content was determined by the time capillary absorption (UTC). The average value of two measurements was 92 C. the Results obtained in the method of UTC, used as a measure of agglomeration or instability dispersion (low values, less than 100, are good enough).

The test method of UTC is intended to determine the state of dispersion and filterability disperse sizing agents. The results of this test do not always correlate with the stability of viscosity as a function of thermal aging, because the sample of possible agglomeration or coagulation when, however, the viscosity remains fairly stable.

To determine the speed of filtration of the diluted sample variance used the device to determine when the capillary absorption (device with one head available on the company NL Baroid, Houston, pc. Texas). Briefly, the sample is introduced into the contact area of the filter paper with a specific surface area and allowing capillary action to absorb outside of the funnel. Time filtering determine between the two sensors located on the filter boom is e (Whatman No. 17).

Method of UTC as follows.

(a) Diluting the sample with distilled water in the beaker up to 10%of the dry matter content and thorough mixing at room temperature to prepare a sizing dispersion.

(b) On the test head is placed a fresh piece of filter paper.

(C) Through the hole in the test cylinder and the funnel end of the large diameter is placed on the filter paper.

(g) using the eye dropper diluted dispersion is gently placed in the funnel, filling her up to at least half its height. Make sure that between the funnel and paper there is no leak.

(d) Outward from the hopper into the paper seeps emerging from the circle of the filtrate. When the filtrate reaches the two front electrodes, automatically turns on the meter. When the filtrate reaches the third electrode, the counter stops. The timer shows the time of filtration in seconds to the nearest of 0.1-second time interval.

After 2 weeks aging at room temperature the test of UTC was repeated and it was found that the time was 78 with that indicated on the ideal characteristics of stability.

B. the patent 4240935, issued in the name of Dumas

Composition: same as in example 16A.

Methods of introduction, based on technical decisions the research Institute on US 4240935, was carried out as follows.

LSN was diluted with water and this aqueous phase was heated to about 70°C. was Then added to the AAA and the mixture within 30 were treated with ultrasound. The resulting emulsion was poured into a Waring mixer®and at high shear rate was added to the polymer Reten®203, and then alum. Then mix again for 2 min were treated with ultrasound.

The resulting product was a low viscosity white dispersion, which is poorly filtered through a filter for paint with cell sizes of 226 μm. It was visible a certain amount of coagulate. This testified to system instability.

Observations

After one day of aging at room temperature, the sample consisted of a layer of sludge at the bottom, which served as a sign of instability. The value of UTC was so large that it was impossible to measure (exceeded 2000), which also pointed to the instability. Although the Zeta-potential (+72,6 MB) and viscosity (8 SP) were normal, the sample was definitely unstable. After 2 weeks of exposure in a calm state test of UTC was repeated and found that it was impossible to measure (exceeded 2000).

Century By the Dumas method using homogenizer (Manton-Gaulin.

Composition:

AAA Aquapelsup> ®364172,5 g
product Wanin®48F, LSNwas 12.75 g
product Reten®20336,06 g
deionized water1025,39 g
Only1246,7 g

LSN was dissolved in water. With a magnetic stirrer was introduced AAA. The mixture was heated to 70°C. Next, the liquid was poured into a homogenizer (Manton-Gaulin®that was pre-heated to 70°C. once passed through the installation under pressure of 3000 pounds per square inch, was collected and cooled to room temperature. This emulsion was kept at rest for one hour, then heated to 45°C. Re-heated emulsion AAA/LSN/N2About to be lifted into a homogenizer (Manton-Gaulin®that was pre-heated to 45°C. To the emulsion was added the polymer Reten®203 and the liquid was passed through a homogenizer under a pressure of 3000 pounds per square inch. The total dry matter content was 12%. Although this product seemed to be somewhat more stable than the product of example 16B, the value of UTC pointed to substantial instability as the result of the measurement at 10%dry matter content exceeded 2000 (that was undetectable).

Example 17

Another liquid alkenyl tenovuo dimeric system, which included a 35% solids and was prepared using koatservata containing 0.5% sodium lignosulfonate and 1.3% poly(DADMAC), was prepared as follows. Composition:

liquid AAA (Precis®787)132,80 g

product Wanin®S48F, lignosulfonate

(49,0% dry matter)4,08
product Reten®203 (20.6% of dry matter)25,24 g
deionized water239,42 g
Only401,54 g

Properties:

The total dry matter content of 34.6%

the pH of 2.2

Rheological characteristics:

the viscosity at 60 rpm 78 SP

pseudoplastic-type slope -0,184

the value of k 174 SP

The particle size of 0.98 mm

The results of determining the stability to heat aging:

1 week 69 JV

2 weeks 65 SP

3 weeks 61 SP

4 weeks 61 SP

Stratification when standing (calculation according to the definition of solid particles at the bottom):

1 week of 2.9%

3 weeks of 5.2%

4 weeks of 5.8%

Zeta-potential:

td align="left"> 6,5
pHmV
3,7+68,1
a 4.9+59,9
+36,1
7,7+35,9
8,9+9,9

These results indicate that this particular composition exhibits a cationic character in the entire pH range and has a Zeta potential greater than 20 mV in a typical range of pH, which hold the paper manufacturing process (at a pH of approximately 7.7) in the case of a sizing agent of this type. As the heat and stratification is well controlled.

Example 18

Processing in the cold

This example shows the effectiveness of processing of the product at temperatures in the winter. Because the processing is not subjected to starch, which is usually used in earlier technology, where the starch was necessary to heat, in some cases, the emulsification can be a process carried out without heating. This sample was prepared using the same compositions and performing the same process steps as in example 17, but with 5°directly above the freezing temperature. The sample had the following characteristics :

The total dry matter content of 34.1%

pH 2.3

Rheological characteristics:

the viscosity at 60 rpm 80 SP

pseudoplastic-type slope 0,201

the value of k 189 SP

As you can see, properties to be achieved in the process of emulsified what I cold using koatservata in accordance with the present invention, similar properties achieved in example 17, and had a rather high resistance to thermal stress. Thus, the characteristics of the emulsion proved to be quite reproducible. The mechanism of emulsification koatservatnyh particles are efficient enough for its application in industrial processes.

Example 19

Sizing

On the effectiveness of sizing can be influenced by the charge on the surface of the particles or droplets. In this example, on the effectiveness of the sizing the sample in example 17 compare with usually emulsified system where the use of emulsification starch and stabilizing system. Starch system has anionic activity. Usually a sizing substance of this type (liquid alkenylamine dimer) shows good efficacy after curing, normally within 7 days. In this experiment, a mixed fibrous semi-finished product of the t (solid)/XA (softwood) species in a ratio of 70/30 grinded until the degree of grinding on CEC (canadian standard device) approximately 425 in the water. The alkalinity in the tank for slurry was maintained at a level of 150 hours/million at hardness of 50 hours/million paper weight was 40 pounds/3000 square feet and the temperature of the fibrous mass was equal to 40°C. the pH Value in the pressure box was set on level is 8. The ability to see risovatelnoe the influence of emulsifying and stabilizing system for sizing no additives were used. In the first two columns of table 4 presents data efficiency sizing outside of the paper machine, determined according to test method sizing of the company Hercules (IPG), designated as IPG in seconds.

Emulsified by koatservata system was much more effective for gluing in place of the winding roll. Improved sizing for both systems reached during aging (last 2 columns), but koatservatnyh system was however significantly better.

Table 4
IPG, outside the machine, theIPG, after aging, the
StarchThe koatservataStarchThe koatservata
The glue content, %stablestablestablestable
0,0502018
0,1012561532
0,1518333 84746
0,2040368199880

The present invention can be implemented in other specific variants of its performance, safety and comfort of its nature or amount, so in such cases it is necessary to be guided not so much the above description as the attached claims, which defines the scope of the invention.

1. Stable emulsified or dispersed acanfora a sizing composition for sizing paper comprising scanivalve sizing substance, stable cationic colloidal koatservatnyh stabilizer, and koatservatnyh stabilizer includes anionic component and a cationic component and anionic and cationic components are in such a ratio at which the Zeta-potential of this sizing composition is at least about 20 mV.

2. The composition according to claim 1, anionic component which is selected from a range that includes anionic colloid, polyelectrolyte and surfactant.

3. The composition according to claim 2, in which the anionic component is an anionic colloid selected from a range, including clay, silica and lat the COP.

4. The composition according to claim 2, in which the anionic component is an anionic polyelectrolyte selected from a range that includes polycarboxylate, polysulphate and polysulfone.

5. The composition according to claim 4, in which the anionic component is an anionic lignosulfonate.

6. The composition according to claim 2, in which the anionic component is an anionic surfactant selected from a range that includes alkylcarboxylic, alkylsulfate, alkylsulfonate, arylcarboxylic, arylsulfonic, arylsulfonate, alkylaminocarbonyl, alkylarylsulfonate and alkylarylsulfonates, alkyl residues containing from 1 to about 18 carbon atoms each, aryl residues which contain from 6 to multimeric the sizing agent, the sizing based substance alkenylamine anhydride and mixtures thereof.

7. The composition according to item 13, in which the reactive sizing substance is alkenylamine dimer.

8. The composition according to item 13, in which the reactive sizing substance is a 2-oxetanone of multimer.

9. The composition according to item 13, in which the reactive sizing substance is a sizing substance on the basis of alkenylamine anhydride.

10. The composition according to item 16, in which alchemistry dioxide the ID is a product of the interaction of maleic anhydride and olefin, containing from 14 to 18 carbon atoms.

11. The composition according to item 16, in which alchemistry anhydride is a product of the interaction of maleic anhydride and olefin selected from the series consisting of octadecane, tetradecene, hexadecene, Acadian, 2-n-hexyl-1-octene, 2-n-octyl-1-dodecene, 2-n-octyl-1-mission 2-n-dodecyl-1-octene, 2-n-octyl-1-octene, 2-n-octyl-1 none, 2-n-hexyl-1-mission and 2-n-heptyl-1-octene.

12. The composition according to claim 1, in which scanivalve sizing substance is erectionspeedo sizing agent.

13. The composition according to claim 19, in which erectionspeedo sizing substance is a polymer obtained by using at least one monomer selected from the series comprising styrene, α-methylsterol, acrylate containing ester Deputy, having from 1 to 13 carbon atoms, methacrylate containing ester to about 12 carbon atoms each, and alcylaryl the remains of which contains from 7 to about 30 carbon atoms each.

14. The composition according to claim 1, the cationic component of which is selected from a range that includes a cationic polyamine, polysulfone and polyamidoamine, and the cationic component has srednevekovoi molecular weight of at least about 5000 and contains at least about 20% to tinactive functional groups.

15. The composition according to claim 7, cationic component is a cationic polyamine selected from the series comprising primary amine, secondary amine, tertiary amine, Quaternary amine and mixtures thereof.

16. The composition according to claim 8, in which the cationic polyamine is a Quaternary polyamine.

17. The composition according to claim 9, in which the Quaternary polyamine is polydiallyldimethyl, the alkyl residue contains from 1 to about 6 carbon atoms.

18. The composition according to claim 10, in which the Quaternary polyamine is polydiallyldimethyl, characteristic viscosity which ranges from about 0.1 to about to 2.0 DL/g

19. The composition according to claim 1, in which scanivalve sizing substance is a reactive sizing agent.

20. The composition according to item 12, in which the reactive sizing substance selected from a range that includes alkylbetaine dimeric, alkenylamine dimer, 2-oxetanone dimer, 2-oxetanone Deputy, having from 1 to 13 carbon atoms, Acrylonitrile, Methacrylonitrile, vinyl acetate, ethylene and butadiene, and optionally comprising acrylic acid, methacrylic acid, maleic anhydride, esters of maleic anhydride and mixtures thereof with an acid number less than when the Arno 80.

21. The composition according to claim 20, in which the polymer is produced using at least one monomer selected from the series comprising styrene, acrylate containing ester Deputy, having from 1 to 13 carbon atoms, methacrylate containing ester Deputy, having from 1 to 13 carbon atoms, Acrylonitrile and Methacrylonitrile.

22. The composition according to claim 1, which further includes a rosin sizing agent.

23. The composition according to claim 1, in which the anionic component is contained in an amount of from about 0.2 to about 2 wt.%, cationic component is contained in an amount of from about 0.1 to about 5 wt.%, in all cases, the content in mass percent, expressed in terms of the amount of dry component in the composition, and cationic and anionic components are contained in such quantities, at which the value of the ratio between the cationic and anionic components of greater than about 0.1.

24. The composition according to item 23, in which scanivalve sizing substance is contained in an amount of from about 10 to about 60 wt.%.

25. The composition according to paragraph 24, in which scanivalve sizing substance is contained in an amount of from about 20 to about 50 wt.%, anionic component is a sodium lignosulphonate contained in the amount of about what about 0.2 to about 1.5 wt.%, and the cationic component is polydiallyldimethyl-chloride with a characteristic viscosity of from about 0.5 to about 1.7 DL/g, is contained in an amount of from about 0.2 to about 3.5 wt.%, moreover, these cationic and anionic components are contained in such quantities, at which the value of the ratio between the cationic and anionic components is from about 0.6 to about 3.

26. The composition according to claim 1, Zeta-potential which is equal to at least 25 mV.

27. The composition according to claim 1, Zeta-potential which is equal to at least 40 mV.

28. Method of preparation of stable cationic neonatology a sizing composition for sizing paper according to claim 1, comprising scanivalve a sizing agent and a colloidal koatservatnyh stabilizer, comprising the following stages:

(a) preparation of cationic colloidal koatservatnyh stabilizer containing anionic component and a cationic component, in water, and

(b) preparation of stable cationic neonatology sizing composition by preparing an aqueous emulsion or dispersion of a sizing agent with colloidal koatservata, and Zeta-potential of this composition is at least about 20 mV.

29. The method according to item 27, which aminoach wny component is chosen from the series including anionic colloid, polyelectrolyte and surfactant.

30. The method according to clause 29, in which the anionic component is an anionic colloid selected from a range, including clay, silica and latex.

31. The method according to clause 29, in which the anionic component is an anionic polyelectrolyte selected from a range that includes polycarboxylate, polysulphate and polysulfone.

32. The method according to p, in which the anionic component is an anionic lignosulfonate.

33. The method according to p, in which the anionic component is an anionic surfactant selected from a range that includes alkylcarboxylic, alkylsulfate, alkylsulfonate, arylcarboxylic, arylsulfonic, arylsulfonate, alkylaminocarbonyl, alkylarylsulfonate and alkylarylsulfonates, alkyl residues containing from 1 to about 18 carbon atoms each, aryl residues which contain from 6 to about 12 carbon atoms each, and alcylaryl the remains of which contains from 7 to about 30 carbon atoms each.

34. The method according to p, in which the cationic component is selected from a range that includes a cationic polyamine, polysulfone and polyamidoamine, and the cationic component has srednevekovoi the molecular is th weight of at least about 5000 and contains at least about 20% cationic functional groups.

35. The method according to clause 34, in which the cationic component is a cationic polyamine selected from the series comprising primary amine, secondary amine, tertiary amine, Quaternary amine and mixtures thereof.

36. The method according to p, in which the cationic polyamine is a Quaternary polyamine.

37. The method according to p, in which the Quaternary polyamine is polydiallyldimethyl, the alkyl residue contains from 1 to about 6 carbon atoms.

38. The method according to clause 37, in which the Quaternary polyamine is polydiallyldimethyl, characteristic viscosity which ranges from about 0.1 to about to 2.0 DL/g

39. The method according to p, in which the anionic component is an anionic polyelectrolyte selected from a range that includes polycarboxylate, polysulphate and polysulfones, and the cationic component is a Quaternary polyamine.

40. The method according to p, in which the anionic component is selected from a range that includes anionic colloid, polyelectrolyte and surfactant and the cationic component is selected from a range that includes a cationic polyamine, polysulfone and polyamidoamine, and the cationic component has srednevekovoi molecular weight less the th least about 5000 and contains at least about 20% cationic functional groups.

41. The method according to p, in which the anionic component is an anionic lignosulfonate, and the cationic component is polydiallyldimethyl.

42. The method according to p in which scanivalve sizing substance is a reactive sizing agent.

43. The method according to § 42, in which the reactive sizing substance selected from a range that includes alkylbetaine dimeric, alkenylamine dimer, 2-oxetanone dimer, 2-oxetanone multimeric the sizing agent, the sizing based substance alkenylamine anhydride and mixtures thereof.

44. The method according to item 43, in which the reactive sizing substance is alkenylamine dimer.

45. The method according to item 44, in which the reactive sizing substance is a 2-oxetanone of multimer.

46. The method according to item 43, in which the reactive sizing substance is a sizing substance on the basis of alkenylamine anhydride.

47. The method according to item 46, which alchemistry anhydride is a product of the interaction of maleic anhydride and olefins containing from 14 to 18 carbon atoms.

48. The method according to item 46, which alchemistry anhydride is a product of the interaction of m is leinbaugh anhydride and olefin, selected from the series consisting of octadecane, tetradecene, hexadecene, aktepe, 2-n-hexyl-1-octene, 2-n-octyl-1-dodecene, 2-n-octyl-1-mission 2-n-dodecyl-1-octene, 2-n-octyl-1-octene, 2-n-octyl-1 none, 2-n-hexyl-1-mission 2-n-heptyl-1-octene.

49. The method according to p in which scanivalve sizing substance is erectionspeedo sizing agent.

50. The method according to § 49, in which erectionspeedo sizing substance is a polymer obtained by using at least one monomer selected from the series comprising styrene, α-methylsterol, acrylate containing ester Deputy, having from 1 to 13 carbon atoms, methacrylate containing ester Deputy, having from 1 to 13 carbon atoms, Acrylonitrile, Methacrylonitrile, vinyl acetate, ethylene and butadiene, and optionally comprising acrylic acid, methacrylic acid, maleic anhydride, esters of maleic anhydride and mixtures thereof with an acid number less than about 80.

51. The method according to item 50, in which the polymer is produced using at least one monomer selected from the series comprising styrene, acrylate containing ester Deputy, having from 1 to 13 carbon atoms, methacrylate containing ester Deputy, having from 1 to 13 carbon atoms, Acrylonitrile and meta is elontril.

52. The method according to p in which scanivalve sizing substance is contained in an amount of from about 10 to about 60 wt.%, anionic component is a sodium lignosulphonate contained in an amount of from about 0.2 to about 2 wt.%, and the cationic component is polydiallyldimethyl with a characteristic viscosity in the range from about 0.1 to about 2 DL/g, is contained in an amount of from about 0.1 to about 5 wt.%, in all cases, the content in mass percent, expressed in terms of the amount of dry component in the composition, and cationic and anionic components are contained in such quantities, at which the value of the ratio between the cationic and anionic components of greater than about 0.1, and in which the viscosity of the dispersion in Brookfield, measured at 60 rpm up to about 150 SP.

53. The method according to paragraph 52, in which scanivalve sizing substance is contained in an amount of from about 20 to about 50 wt.%, anionic component is a sodium lignosulphonate contained in an amount of from about 0.2 to about 1.5 wt.%, and the cationic component is polydiallyldimethyl contained in an amount of from about 0.2 to about 3.5 wt.%, moreover, these cationic and inactively components are contained in such amounts, when a value of the ratio between the cationic and anionic components is from about 0.6 to about 3.

54. The method according to p in which scanivalve sizing substance is a liquid and in which stage (a) further includes the preparation of cationic colloidal koatservatnyh stabilizer by mixing with water anionic component and a cationic component in such quantities and with such speed shift, which is sufficient for the preparation of cationic colloidal koatservata, Zeta-potential which is at least about 20 mV, and stage (b) further includes the preparation of emulsion sizing agent with colloidal cooperation by homogenization of this sizing agent and koatservatnyh stabilizer.

55. The method according to item 54, in which stage (a) further comprises mixing in water the least viscous of the anionic component and the cationic component of the first mixture, mixing the first mixture more viscous of the anionic component and the cationic component in such a way as to obtain a second mixture, and homogenizing the second mixture in a homogenizer to obtain cationic colloidal koatservata.

56. The method according to p in which scanivalve sizing vedettaessa solid and in which stage (a) further includes a substage, MIS (I) preparation of cationic colloidal koatservatnyh stabilizer by mixing with water anionic component and a cationic component in such quantities and with such speed shift, which is sufficient for the preparation of cationic colloidal koatservata, Zeta-potential which is at least about 20 mV, and the substage, MIS (II) heating koatservata to elevated temperature sufficient to melt the solid neonatologia sizing agent, and stage (b) further includes the substage, MIS (I) the preparation of the emulsion neonatologia sizing agent with colloidal koatservata by mixing this sizing agent with koatservatnyh stabilizer at an elevated temperature with sufficient speed shift for the preparation of the emulsion koatservatnyh stabilizer and neonatologia a sizing agent and a substage, MIS (II) cooling the emulsion, prepared for the sub-phases (b) (I), to a reduced temperature while stirring to obtain a stable dispersion neonatologia sizing agent and koatservata.

57. The method according to p, in which the Zeta-potential of the sizing composition to at least 25 mV.

58. The method according to p, in which the Zeta-potential of the sizing composition to at least 40 mV.

59. The method of manufacturing sized paper, including the use in the manufacture of sized paper sizing compositions comprising scanivalve p is fining substance, stable cationic colloidal koatservatnyh stabilizer, and this koatservatnyh stabilizer includes anionic component and a cationic component, and moreover, these anionic and cationic components are contained in the same proportion in which the Zeta-potential of the sizing composition comprises at least about 20 mV.

60. The method according to p, in which the anionic component is selected from a range that includes anionic colloid, polyelectrolyte and surfactant.

61. The method according to p, in which the anionic component is an anionic colloid selected from a range, including clay, silica and latex.

62. The method according to p, in which the anionic component is an anionic polyelectrolyte selected from a range that includes polycarboxylate, polysulphate and polysulfone.

63. The method according to item 62, in which the anionic component is an anionic lignosulfonate.

64. The method according to p, in which the anionic component is an anionic surfactant selected from a range that includes alkylcarboxylic, alkylsulfate, alkylsulfonate, arylcarboxylic, arylsulfonic, arylsulfonate, alkylaminocarbonyl, alkylarylsulfonate and alkylarylsulfonates, alkyl residues to the x contain from 1 to about 18 carbon atoms each, aryl residues which contain from 6 to about 12 carbon atoms each, and alcylaryl the remains of which contains from 7 to about 30 carbon atoms each.

65. The method according to p, in which the cationic component is selected from a range that includes a cationic polyamine, polysulfone and polyamidoamine, and the cationic component has srednevekovoi molecular weight of at least about 5000 and contains at least about 20% cationic functional groups.

66. The method according to p, in which the cationic component is a cationic polyamine selected from the series comprising primary amine, secondary amine, tertiary amine, Quaternary amine and mixtures thereof.

67. The method according to p, in which the cationic polyamine is a Quaternary polyamine.

68. The method according to p, in which the Quaternary polyamine is polydiallyldimethyl, the alkyl residue contains from 1 to about 6 carbon atoms.

69. The method according to p, in which the Quaternary polyamine is polydiallyldimethyl, characteristic viscosity which ranges from about 0.1 to about to 2.0 DL/g

70. The method according to p, in which the anionic component is an anionic polyelectrolyte selected from the series, is with polycarboxylate, polysulphate and polysulfones, and the cationic component is a Quaternary polyamine.

71. The method according to p, in which the anionic component is selected from a range that includes anionic colloid, polyelectrolyte and surfactant and the cationic component is selected from a range that includes a cationic polyamine, polysulfone and polyamidoamine, and the cationic component has srednevekovoi molecular weight of at least about 5000 and contains at least about 20% cationic functional groups.

72. The method according to p, in which the anionic component is an anionic lignosulfonate, and the cationic component is polydiallyldimethyl.

73. The method according to p in which scanivalve sizing substance is a reactive sizing agent.

74. The method according to p, in which reactive sizing substance selected from a range that includes alkylbetaine dimeric, alkenylamine dimer, 2-oxetanone dimer, 2-oxetanone multimeric the sizing agent, the sizing based substance alkenylamine anhydride and mixtures thereof.

75. The method according to p, in which reactive sizing substance is alkenyl ecenomy dimer.

76. The method according to item 75, in which reactive sizing substance is a 2-oxetanone of multimer.

77. The method according to p, in which reactive sizing substance is a sizing substance on the basis of alkenylamine anhydride.

78. The method according to p in which alchemistry anhydride is a product of the interaction of maleic anhydride and olefins containing from 14 to 18 carbon atoms.

79. The method according to p in which alchemistry anhydride is a product of the interaction of maleic anhydride and olefin selected from the series consisting of octadecane, tetradecene, hexadecene, Acadian, 2-n-hexyl-1-octene, 2-n-octyl-1-dodecene, 2-n-octyl-1-mission 2-n-dodecyl-1-octene, 2-n-octyl-1-octene, 2-n-octyl-1 none, 2-n-hexyl-1-mission and 2-n-heptyl-1-octene.

80. The method according to p in which scanivalve sizing substance is erectionspeedo sizing agent.

81. The method according to item 80, in which erectionspeedo sizing substance is a polymer obtained by using at least one monomer selected from the series comprising styrene, α-methylsterol, acrylate containing ester Deputy, having from 1 to 13 carbon atoms, methacrylate containing ester Deputy having 1 to 13 carbon atoms, Acrylonitrile, Methacrylonitrile, vinyl acetate, ethylene and butadiene, and optionally comprising acrylic acid, methacrylic acid, maleic anhydride, esters of maleic anhydride and mixtures thereof with an acid number less than about 80.

82. The method according to p, in which the polymer is produced using at least one monomer selected from the series comprising styrene, acrylate containing ester Deputy, having from 1 to 13 carbon atoms, methacrylate containing ester Deputy, having from 1 to 13 carbon atoms, Acrylonitrile and Methacrylonitrile.

83. The method according to p in which scanivalve sizing substance is contained in an amount of from about 10 to about 60 wt.%, anionic component is a sodium lignosulphonate contained in an amount of from about 0.2 to about 2 wt.%, and the cationic component is polydiallyldimethyl with a characteristic viscosity in the range from about 0.1 to about 2 DL/g, is contained in an amount of from about 0.1 to about 5 wt.%, in all cases, the content in mass percent, expressed in terms of the amount of dry component in the composition, and cationic and anionic components are contained in such quantities, at which the value of the ratio between the cationic and anionactive the components of greater than about 0.1, and in which the viscosity of the dispersion according to Brookfield, according to measurements at 60 rpm up to about 150 SP.

84. The method according to p in which scanivalve sizing substance is contained in an amount of from about 20 to about 50 wt.%, anionic component is a sodium lignosulphonate contained in an amount of from about 0.2 to about 1.5 wt.%, and the cationic component is polydiallyldimethyl contained in an amount of from about 0.2 to about 3.5 wt.%, moreover, these cationic and anionic components are contained in such quantities, at which the value of the ratio between the cationic and anionic components is from about 0.6 to about 3.

85. The method according to p, in which the composition for sizing paper used in an amount of from about 0.025 to about 1 wt.% in terms of the mass of paper.

86. The method according to p, in which the composition for sizing paper is used as an additive to a fibrous mass for the manufacture of paper used for the manufacture of sized paper.

87. The method according to p, in which the composition for paper sizing is applied on the paper surface after the formation of the paper.

88. The method according to p, in which the Zeta-potential of the sizing composition to at least 25 mV.

89. The method according to p, in which the Zeta-potential of the sizing compositions of ravenpaw least 40 mV.

90. Glued paper, glued neonatology a sizing composition comprising scanivalve sizing substance, stable cationic colloidal koatservatnyh stabilizer, and this koatservatnyh stabilizer includes anionic component and a cationic component, and moreover, these anionic and cationic components are contained in the same proportion in which the Zeta-potential of the sizing composition comprises at least about 20 mV.

91. Glued paper on p, in which the anionic component is selected from a range that includes anionic colloid, polyelectrolyte and surfactant.

92. Glued paper on p, in which the anionic component is an anionic colloid selected from a range, including clay, silica and latex.

93. Glued paper on p, in which the anionic component is an anionic polyelectrolyte selected from a range that includes polycarboxylate, polysulphate and polysulfone.

94. Glued paper on p, in which the anionic component is an anionic lignosulfonate.

95. Glued paper on p, in which the anionic component is an anionic surfactant selected from the series on the expectation by alkylcarboxylic, alkylsulfate, alkylsulfonate, arylcarboxylic, arylsulfonic, arylsulfonate, alkylaminocarbonyl, alkylarylsulfonate and alkylarylsulfonates, alkyl residues containing from 1 to about 18 carbon atoms each, aryl residues which contain from 6 to about 12 carbon atoms each, and alcylaryl the remains of which contains from 7 to about 30 carbon atoms each.

96. Glued paper on p, in which the cationic component is selected from a range that includes a cationic polyamine, polysulfone and polyamidoamine, and the cationic component has srednevekovoi molecular weight of at least about 5000 and contains at least about 20% cationic functional groups.

97. Glued paper on p, in which the cationic component is a cationic polyamine selected from the series comprising primary amine, secondary amine, tertiary amine, Quaternary amine and mixtures thereof.

98. Glued paper on p, in which the cationic polyamine is a Quaternary polyamine.

99. Glued paper on p, in which the Quaternary polyamine is polydiallyldimethyl, the alkyl residue contains from 1 to about 6 carbon atoms.

100. Glued paper on p, in which quarter CNY polyamine is polydiallyldimethyl, characteristic viscosity which ranges from about 0.1 to about to 2.0 DL/g

101. Glued paper on p, in which the anionic component is an anionic polyelectrolyte selected from a range that includes polycarboxylate, polysulphate and polysulfones, and the cationic component is a Quaternary polyamine.

102. Glued paper on p, in which the anionic component is selected from a range that includes anionic colloid, polyelectrolyte and surfactant and the cationic component is selected from a range that includes a cationic polyamine, polysulfone and polyamidoamine, and the cationic component has srednevekovoi molecular weight of at least about 5000 and contains at least about 20% cationic functional groups.

103. Glued paper on p, in which the anionic component is an anionic lignosulfonate, and the cationic component is polydiallyldimethyl.

104. Glued paper on p in which scanivalve sizing substance is a reactive sizing agent.

105. Glued paper on p, in which reactive sizing substance selected from a range that includes alkyls cenovoe dimer, alkenylamine dimer, 2-oxetanone dimer, 2-oxetanone multimeric the sizing agent, the sizing based substance alkenylamine anhydride and mixtures thereof.

106. Glued paper on p, in which reactive sizing substance is alkenylamine dimer.

107. Glued paper on p, in which reactive sizing substance is a 2-oxetanone of multimer.

108. Glued paper on p, in which reactive sizing substance is a sizing substance on the basis of alkenylamine anhydride.

109. Glued paper on p in which alchemistry anhydride is a product of the interaction of maleic anhydride and olefins containing from 14 to 18 carbon atoms.

110. Glued paper on p in which alchemistry anhydride is a product of the interaction of maleic anhydride and olefin selected from the series consisting of octadecane, tetradecene, hexadecene, Acadian, 2-n-hexyl-1-octene, 2-n-octyl-1-dodecene, 2-n-octyl-1-mission 2-n-dodecyl-1-octene, 2-n-octyl-1-octene, 2-n-octyl-1 none, 2-n-hexyl-1-the mission and 2-n-heptyl-1-octene.

111. Glued paper on p in which scanivalve sizing substance is erectionspeedo proclaimed the e substance.

112. Glued paper on § 111, which erectionspeedo sizing substance is a polymer obtained by using at least one monomer selected from the series comprising styrene, α-methylsterol, acrylate containing ester Deputy, having from 1 to 13 carbon atoms, methacrylate containing ester Deputy, having from 1 to 13 carbon atoms, Acrylonitrile, Methacrylonitrile, vinyl acetate, ethylene and butadiene, and optionally comprising acrylic acid, methacrylic acid, maleic anhydride, esters of maleic anhydride and mixtures thereof with an acid number less than about 80.

113. Glued paper on p, in which the polymer is obtained using at least one monomer selected from the series comprising styrene, acrylate containing ester Deputy, having from 1 to 13 carbon atoms, methacrylate containing ester Deputy, having from 1 to 13 carbon atoms, Acrylonitrile and Methacrylonitrile.

114. Glued paper on p in which scanivalve sizing substance contained in the sizing composition in an amount of from about 10 to about 60 wt.%, anionic component is a sodium lignosulphonate contained in an amount of from about 0.2 to about 2 wt.%, and cationic to the ponent is polydiallyldimethyl with a characteristic viscosity in the range from about 0.1 to about 2 DL/g, contained in an amount of from about 0.1 to about 5 wt.%, in all cases, the content in mass percent, expressed in terms of the amount of dry component in the composition and the cationic and anionic components are contained in such quantities, at which the value of the ratio between the cationic and anionic components of greater than about 0.1, and in which the viscosity of the dispersion in Brookfield, measured at 60 rpm and up to about 150 SP.

115. Glued the paper in § 114, in which scanivalve sizing substance contained in the sizing composition in an amount of from about 20 to about 50 wt.%, anionic component is a sodium lignosulphonate contained in an amount of from about 0.2 to about 1.5 wt.%, and the cationic component is polydiallyldimethyl contained in an amount of from about 0.2 to about 3.5 wt.%, moreover, these cationic and anionic components are contained in such quantities, at which the value of the ratio between the cationic and anionic components is from about 0.6 to about 3.

116. Glued paper on p, in which the sizing composition is used in an amount of from about 0.025 to about 1 wt.% in terms of the mass of paper.

117. Taped the second paper p, in which the sizing composition is used as an additive to a fibrous mass for the manufacture of paper used for the manufacture of sized paper.

118. Glued paper on p, in which the sizing composition deposited on the surface of the paper after the formation of the paper.

119. Glued paper on p, in which the Zeta-potential of the sizing composition to at least 25 mV.

120. Glued paper on p, in which the Zeta-potential of the sizing composition to at least 40 mV.

121. Stable emulsified or dispersed acanfora a sizing composition comprising a hydrophobic phase and the aqueous phase, and this composition is stable cationic colloidal koatservatnyh stabilizer, this koatservatnyh stabilizer includes anionic component and a cationic component and these anionic and cationic components are contained in the same proportion in which the Zeta potential of the composition is at least about 20 mV.

122. The composition according to p, anionic component which is selected from a range that includes anionic colloid, polyelectrolyte and surfactant.

123. The composition according to p, in which the anionic component is an anionic colloid, selected izrada, including clay, silica and latex.

124. The composition according to p, in which the anionic component is an anionic polyelectrolyte selected from a range that includes polycarboxylate, polysulphate and polysulfone.

125. The composition according to p, in which the anionic component is an anionic lignosulfonate.

126. The composition according to p, in which the anionic component is an anionic surfactant selected from a range that includes alkylcarboxylic, alkylsulfate, alkylsulfonate, arylcarboxylic, arylsulfonic, arylsulfonate, alkylaminocarbonyl, alkylarylsulfonate and alkylarylsulfonates, alkyl residues containing from 1 to about 18 carbon atoms each, aryl residues which contain from 6 to about 12 carbon atoms each, and alcylaryl the remains of which contains from 7 to about 30 carbon atoms each.

127. The composition according to p, cationic component is selected from a range that includes a cationic polyamine, polysulfone and polyamidoamine, and the cationic component has srednevekovoi molecular weight of at least about 5000 and contains at least about 20% cationic functional groups.

128. The composition according to p, cationic component which presented yet a cationic polyamine, selected from a range that includes primary amine, secondary amine, tertiary amine, Quaternary amine and mixtures thereof.

129. The composition according to p, in which the cationic polyamine is a Quaternary polyamine.

130. The composition according to p, in which the Quaternary polyamine is polydiallyldimethyl, the alkyl residue contains from 1 to about 6 carbon atoms.

131. The composition according to p, in which the Quaternary polyamine is polydiallyldimethyl, characteristic viscosity which ranges from about 0.1 to about to 2.0 DL/g

132. The composition according to p, a hydrophobic phase which is selected from a range, including crude oil, mineral oil, hydrophobic organic solvents, styrene and monomers, which are latexes.

133. The composition according to p, a hydrophobic phase which is selected from a range that includes clay, pigment, calcium carbonate, silica and mixtures thereof.

134. The composition according to p, in which the aqueous phase is water.

135. The composition according to p, in which the anionic component is contained in an amount of from about 0.2 to about 2 wt.%, cationic component is contained in an amount of from about 0.1 to about 5 wt.%, in all cases, the content in mass percent, expressed in terms of the amount of dry component skompozicii, and cationic and anionic components are contained in such amounts, in which the ratio of cationic and anionic components of greater than about 0.1.

136. The composition according to p, in which the hydrophobic phase contains from about 10 to about 60 wt.%.

137. The composition according to p, in which the hydrophobic phase is contained in an amount of from about 20 to about 50 wt.%, anionic component is a sodium lignosulphonate contained in an amount of from about 0.2 to about 1.5 wt.%, and the cationic component is polydiallyldimethyl the characteristic viscosity of from about 0.5 to about 1.7 DL/g, is contained in an amount of from about 0.2 to about 3.5 wt.%, moreover, these cationic and anionic components are contained in such quantities, at which the value of the ratio between the cationic and anionic components is from about 0.6 to about 3.

138. The composition according to p, Zeta-potential which is equal to at least 25 mV.

139. The composition according to p, Zeta-potential which is equal to at least 40 mV.



 

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FIELD: mining industry and mechanical engineering.

SUBSTANCE: the invention is dealt with methods of production of a paper, in particular, with its smoothing. The water suspension containing cellulose fibers and optional fillers (i) add the sizing dispersion containing a sizing agent and a polymer including one or several aromatic groups and (ii) a sizing promoter containing a polymer intercalating one or several aromatic groups. Mould and dry the produced suspension. The sizing dispersion and sizing promoter are added to the water suspension separately. The invention ensures improvement of the process of sizing the cellulose fibers having a high conductivity.

EFFECT: the invention ensures improvement of the process of sizing the cellulose fibers having a high conductivity.

41 cl, 6 tbl, 6 ex

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