Barrier coatings for films and structures

FIELD: chemistry.

SUBSTANCE: coated film has a carrier film selected from a group comprising polyethylene terephthalate, glycol ester (PET-G), nylon, biaxially oriented polypropylene, oriented polypropylene, cast polypropylene, polystyrene, polyethylene, polyvinyl chloride, polylactic acid (PLA), polyhydroxy alkanoate (PHA), polyvinyl chloride and paper; and a coating on at least one surface of the carrier film, containing (a) vermiculite; (b) a polymer capable of forming a film, selected from polyhydroxyl polymer and urethane-containing polymer; (c) a vermiculite dispersant in the polymer, wherein said dispersant bears a negative charge; and (d) a cross-linking agent. The invention also relates to a method of stabilising a suspension containing vermiculite from a shearing action, involving merging a mixture containing one or more cross-linking agents, a polymer capable of forming a film, water and a vermiculite dispersant bearing a negative charge.

EFFECT: improved barrier properties.

24 cl, 3 tbl, 12 ex

 

RELATED APPLICATIONS

This application claims priority under provisional patent application U.S. No. 60/746074, filed may 1, 2006.

The technical FIELD TO WHICH the INVENTION RELATES.

The invention relates to a barrier coating containing vermiculite, films and molded articles containing such coatings, and to methods of producing such coatings, films and products.

The prior art INVENTIONS

Barrier coatings are widely used in packaging materials to prevent the passage of molecules or compositions of penetrating substances, especially to prevent contact between the contents of the package and penetrating substance. Improvement of barrier properties is an important task for the manufacturers of films sold to protect products such as food, cosmetics, agricultural chemicals and pharmaceuticals. Harmful penetrating chemicals of interest include oxygen, carbon dioxide, water vapor, aromatic and aliphatic hydrocarbons, industrial waste, odors, odors, smoke, pesticides, toxic materials and pollutants in the environment, and impurities in the air. It is desirable the use of typical plastic materials, because they are inexpensive. However, the plastic which is permeable to oxygen to such an extent, the amount of penetration of oxygen is much higher than in the case of metal or glass material used in the production of canned canned or bottled, or foil applied with paper for packing soup mixes and dry snacks, all of which have a permeability to oxygen, is practically zero.

The barrier coating may also serve to (a) retention of gas within the package - for example, the gas used for modified atmospheric packaging, or helium, held inside the balloon; (b) retention of moisture within the package so that the contents were not dehydrated; or (C) retention of the smell inside the package, where odors can be costly components. In all these cases, the barrier keeps the Packed contents.

Barrier properties are the result of both its structure and composition of the material. The nature of the structure, i.e. crystalline or amorphous nature of the material, the presence of layers or coatings can affect the barrier properties. The barrier property of many materials can be increased by applying a liquid or samouporyadochennoi molecular technologies, through axially oriented material, such as a film of ethylene vinyl alcohol, or by means of biaxially oriented, neilo the new films and through the application of other useful structures. Internal polymer structure can be crystalline or ordered to a certain extent to increase resistance, permeability penetrating substances. You can opt for plastic or paper packaging coating material that prevents absorption of penetrating substances barrier surface, and you can choose the material to prevent migration of penetrating substances through the barrier. Typically, the permeability depends on the concentration and temperature. Permeability is also a function of pressure, when there is a gradient between atmospheric pressure and the structure is surrounded by a covering film, and so on, for example, balloons (positive pressure) and vacuum packaging (negative pressure).

Suppose that the permeability through the polymer coating is a multi-stage phenomenon. First of all, the collision of molecules penetrating substances, such as oxygen, the polymer should sorption in the polymer. Penetrating the substance migrates through the polymer matrix along a random trajectory, and eventually penetrating the substance is released from the polymer. The process reaches equilibrium (chemical concentration and pressure) on both sides of the cover. The penetrating ability of typical molecules through the packaging film is a function of the speed diffusive solubility of the molecule. The diffusion rate measures how fast is the transfer of molecules through the film, and it refers to the ease with which the molecule penetrating substance moves inside of the polymer. Solubility refers to the concentration or the total number of penetrating substances that may be present in the film. Diffusion and solubility are important measures for the characteristics of the barrier coating. The vapor transfer through the packaging film may occur by capillary flow or activated diffusion. Capillary course includes the penetration of small molecules through the holes of small diameter or microscopic channels of the porous medium, which is generally an undesirable feature of the barrier coating. Activated diffusion causes the dissolution of penetrating substances in effectively non-porous medium, the diffusion through the membrane under a concentration gradient, and the selection of the transverse surface at the lower concentration. Several factors determine the ability of molecules penetrating substances to penetrate the barrier coating, including the size, shape and chemical nature of the penetrating substance, physical and chemical properties of the polymer and the interaction between penetrating agent and a polymer.

There are various transparent plastic materials having n is satisfactory getbasename properties. Film consisting of a thermoplastic resin, oriented films of polypropylene, polyester, polyamide or the like, generally have excellent mechanical properties, heat resistance, transparency, etc. and are widely used as packaging materials. However, when these films are used for packaging food or other goods, they are unsatisfactory in terms of high barrier requirements for oxygen and other gases. Typical barrier materials represent a single polymer layer, double layer jointly extruded or laminated polymeric film coated with a single layer or double layer or multilayer film having one or more coatings on the surface or both surfaces. The most widely used barrier polymers for food packaging are copolymers of ethylene and vinyl alcohol (“EVON”), copolymers of ethylene and vinyl acetate (“EVA”) and ternary copolymers of polyvinylidenechloride (“PVDC”), which have a known resistance to the penetration of gases, perfumes, fragrances and solvents. PVDC has known resistance to moisture. Copolymer resin EVON are available in a wide variety of grades with different concentrations of ethylene. Since the content of EVON increase of the relative content of polyethylene, increased barrier properties to gases, perfumes and solvents. Resin EVON usually applied by co-extrusion or lamination with polyolefins such as polyethylene and polypropylene, as structural and/or sealing layers, and nylon, polyethylene terephthalate (“PET”), polylactic acid (“PLA”) or polyhydroxyalkanoate (“PHA”) as structural layers. The PVDC emulsion is applied in the form of a Rotogravure coatings of micron thickness on a variety of basic film structures, such as PET, nylon, polypropylene, polylactic acid (“PLA”) or polyhydroxyalkanoate (“PHA”). Other barrier technologies include metallization using a thin coating of aluminum on a variety of basic film structures using vacuum deposition. Commercially available moderate barrier polymer materials, such as films of monosloevogo of polyethylene terephthalate, polymethylpentene and polyvinyl chloride (“PVC”).

Have been received and other barrier film with a very thin, obtained by deposition from a plasma vapor layers of oxides of silicon or aluminium (thickness of several nanometers) on the basic film and formed of a polymeric structure.

Another barrier technology includes the use of oxygen absorbers or scavengers, which are used in poly is hernych coatings or bulk polymer materials. You can enter the barrier metal reducing agents such as compounds of iron powder and the oxide or metal is platinum, which absorb oxygen by converting it into a stable oxide in the film. Also developed non-metallic oxygen scavengers, and they are designed to alleviate problems associated with a metal or a metallic taste or smell. Such systems include compounds, including ascorbic acid and various salts and ORGANOMETALLIC compounds, which have a natural affinity to oxygen. Such molecules absorb oxygen molecules in the inner polymer chemical structure, removing oxygen from the interior or enclosed spaces packaging materials. Such materials are costly, and in some cases, the presence of dangerous chemical antioxidants limits their application.

Another way to improve gazoballonnyj properties includes the dispersion of the inorganic material in the resin. Polymer coating of micron thickness include the dispersion of the nano-clays, such as montmorillonite, hectorite, mica, sodium tetradenia mica, sodium tannaic and vermiculite, various water-soluble or emulsified polymers. For example, montmorillonite, hectorite, sodium tetrac annieway mica or sodium channelit can be mixed with polyvinyl alcohol. Similarly, the known mixture of polyvinyl alcohol and polyacrylic acid with these clays. To prevent aggregation of the particles of clay or vermiculite, or deposition from the solution during mixing with such polymers should be processed carefully, for example, acetic acid or glycine. In addition, it is difficult to maintain the particles of vermiculite in suspension.

Finally, common are attempts to create a barrier by directly adding particles of various clays in extruded and inflatable thermoplastic films and molded products, but they provide only limited improvements in barrier impermeability with respect to a significant improvement in the application of the above containing clay coatings.

The INVENTION

In some embodiments, implementations of the invention relates to coated films, including the main film; and coating at least on one surface of the main film, containing:

(a) vermiculite;

(b) a polymer capable of forming a film;

(C) a dispersant (or a combination of dispersant) for vermiculite in the polymer and the dispersant (dispersant) carries a negative charge; and

(d) a crosslinking agent.

Preferred polymers are capable of forming films include polyhydroxyethyl poly is EP, orlandomiami polymer, rubber and PVDC. In some preferred embodiments, implementations urethane or rubber should be used in an aqueous emulsion. In some embodiments, executing PVDC should be applied in the form of an emulsion.

Suitable rubbers include polychloroprene, butyl rubber and nitrile rubber. In certain embodiments accomplishments polyhydroxylated composition is a polyvinyl alcohol. In another embodiment, polyhydroxy polymer which can be used is a polymer of polyvinyl alcohol and ethylene vinyl alcohol (PVOH/EVON).

Some preferred vermiculite has a shape factor (the ratio of length to height) of more than 5,000 and preferably more than 10,000. In some embodiments, executing the quantity of vermiculite is from 5 to 65 wt.% of the total weight of the polymer and crosslinking agent.

In the invention can be applied many different dispersers. Suitable dispersing agents include ecological sodium, zirconium carbonate and ammonium anionic polyethylene wax, sodium salt poliasparaginovaya acid, anionic Carnauba wax, or a mixture thereof.

In some embodiments, executing a crosslinking agent is ethandiol, cyclic condensate glyoxal, urea, carbonate, zirconium and ammonium or mixtures thereof.

The invention is also applicable to a variety of supporting films. These films include polyethylene terephthalate, glycolytically complex polyester (PET-G), nylon, biaxially oriented polypropylene, oriented polypropylene, cast polypropylene, polystyrene, polyethylene, polyvinylchlorid, polylactic acid (PLA), polyhydroxyalkanoate (RNA), and polyvinyl chloride. The invention is also applicable to other substrates, such as paper.

In some embodiments, implementations of the film, products and the like according to the invention include a sealing film in contact with the floor. In some embodiments, executing the sealant covers essentially all of the floor. Suitable sealing films include polyethylene, various forms of polypropylene, polylactic acid and polyhydroxyalkanoate. These films include variations of the compositions, such as low density polyethylene (LDPE) and high density polyethylene (HDPE).

In some embodiments, implementations of the film, products and compositions according to the invention are useful in the field of packaging food, beverages, medicines, cosmetics and other sensitive air materials. In certain preferred embodiments, implementations of the components are approved by the FDA or approved by the FDA, components for direct and naramig the contact with food, medicines or the like.

The invention also relates to compositions comprising (a) water; (b) vermiculite, suspended in it; (C) a polymer capable of forming a film; (d) at least one dispersant for vermiculite in the polymer and the dispersant carries a negative charge; and (e) at least one crosslinking agent.

In other embodiments, implementations of the invention relates to molded objects with a coating, where the coating comprises: (a) vermiculite; (b) a polymer capable of forming a film; (C) at least one dispersant for vermiculite in the polymer and the dispersant carries a negative charge; and (d) at least one crosslinking agent.

In other embodiments, implementations of the invention relates to industrial products, which includes at least one laminate, and the specified laminate comprises: (a) vermiculite; (b) a polymer capable of forming a film; (C) at least one dispersant for vermiculite in the polymer and the dispersant carries a negative charge; and (d) at least one crosslinking agent.

In some other embodiments, implementations of the invention concerns methods of obtaining compositions coated film, including:

- mixing the aqueous suspension of vermiculite with a solution comprising (a) the emer, includes polyhydroxy polymer orlandomiami polymer, rubber or PVDC; (b) at least one dispersant or mixture of dispersants and (C) at least one crosslinking agent for the formation of the second suspension; and

- the application of the substrate using the second suspension.

The invention also relates to methods of stabilizing the suspension, including vermiculite, from shift, which includes the use of one or more crosslinking agents in the mixture, additionally comprising: (a) vermiculite; (b) a polymer capable of forming a film; and (C) one dispersant for vermiculite, and specified dispersant carries a negative charge.

DETAILED DESCRIPTION of ILLUSTRATIVE OPTIONS ACCOMPLISHMENTS

The invention concerns coated films and articles, compositions for such coatings and methods of coating of the substrate, where the coating includes vermiculite; a polymer capable of forming a film; a dispersant (dispersant) for vermiculite in the polymer and the dispersant (dispersant) carries a negative charge, and a crosslinking agent (agents). It should be noted that in some embodiments, executing a large part of the cross-linking agent interacts with the polymer capable of forming films.

In some embodiments, executing the reagent can perform more than od is the function. For example, zirconium carbonate and ammonium is as a dispersant, and a crosslinking agent for PVOH.

In some embodiments, executing the substrate is the main film. The invention is applicable to numerous major films. For example, the composition barrier coating can be applied to various blow molded, extruded, etc. films or products made from polymeric materials selected from polyethylene terephthalate (“PET”); biaxially oriented polypropylene (“BOPP”) and oriented polypropylene (“OPP”); cast polypropylene, polyethylene (“PE”), including high density polyethylene (“HDPE”), low density polyethylene (“LDPE”) and linear low density polyethylene (“LLDPE”); polyvinyl chloride (“PVC”), polystyrene (“PS), biaxially oriented polystyrene and soft polystyrene (“EPS”); polyethylenterephtalate (“PET-G”); ethylene vinyl acetate (“EVA”); ethylene vinyl alcohol (“EVON”); polyhydroxyalkanoate (“PHA”), polylactic acid (“PLA”) and others, such as copolymers of Acrylonitrile, butadiene and styrene; acrylic polymers such as polymethylmethacrylate, poly-n-butyl acrylate, a copolymer of ethylene and acrylic acid, a copolymer of ethylene and methacrylate; cellophane, cellulose derivatives such as cellulose acetate, propionate, cellulose acetate, butyrate, ACET is that cellulose and cellulose triacetate; fluoropolymers including polytetrafluoroethylene (such as Teflon, a registered trademark of DuPont company), copolymers of ethylene and tetrafluoroethylene, copolymers of tetrafluoroethylene and propylene, polyvinylfluoride polymers; polyamides such as nylon-6 and nylon-6,6, including biaxially oriented nylon; polycarbonates; polyesters, such as poly(ethylene-co-terephthalate), poly(ethylene-co-1,4-naphthalenyloxy), poly(butylene-co-terephthalate); polyimide materials; vinyl film, including copolymers of vinyl chloride and vinyl acetate, grades, polyvinyl alcohol (“PVOH”), copolymers of vinyl chloride and vinylidenechloride; and specialized films, including polysulfone, polyster, Polyphenylene oxyde, liquid crystalline esters, ketones, ethers, etc.

The film is a flat plot of polymer (e.g., plastic) resin without substrate, whose thickness is much less than its width or length. Film, as a rule, are treated as objects, which have a thickness of 0.25 mm or less, typically from 0.01 to 0.20 mm In thickness layer can range from about 0.20 mm to several cm, typically from 0.3 to 3 mm Films and layers can be applied separately or in combination with another layer of cloth or structural parts due to the glossy is Yu, co-extrusion or coating. Important properties include conditional limit tensile strength, elongation at break, hardness, tensile strength (resdir) and resistance; optical properties such as turbidity, transparency, chemical resistance, such as water absorption and transmission of various penetrating materials, including water vapor and other penetrating substances; electrical properties such as dielectric constant; and properties of stability, including shrinkage, cracking, weather resistance, etc. Polymeric materials can be formed into a film using a variety of methods, including inflatable extrusion of the polymer, linear biaxially oriented film extrusion, and by otlivanija molten polymer resin, monomer or polymer dispersion (in water or an organic solvent). These methods are well-known manufacturing procedures. Experts can design a polymer for a particular end use by regulating the molecular weight (as a measure of molecular weight polymer industry the selected index of the melt - melt index is inversely proportional to molecular weight, density, and crystallinity).

Composition barrier coating according to the invention can be also applied to form the cell body, which may be a cast product, or product manufactured through injection molding or blow molding (such as bottles and other closures), sheet molding of thermoplastics (e.g., pallets) or cold stamping (e.g., pallets). For casting molten polymer resin or dispersion of the monomer is usually produced from polyethylene or polypropylene. Sometimes cast nylon, sophisticated polyester and PVC. For roll coating dispersion acrylic urethane and PVDC and other water-based will polimerizuet to the optimal degree of crystallinity and molecular weight prior to coating. The coating composition according to the invention can also be applied to bottles and trays, which are usually made of PET, polypropylene and polystyrene. Additionally, the film can be used as a film ukuporochnogo funds on a hard plastic container. Such containers may have a triangular, circular, square or other shapes of cross-section, with a flat bottom and an open top. Additionally, the invention can be used in the formation of the inflated packaging, folding types of shells, tanks, pallets, closure caps and similar articles of protective shells. Examples of use include, but are not limited to, bottles, trays, lids, tubes, gloves, and p is iterative.

Often two or more polymeric materials are combined by a process of co-extrusion process for the manufacture of special products of a film or sheet suitable for a particular end use. One or more kinds of polymers in two or more layers of melt is melted in separate extruders and connect together in a separate cylinder for co-extrusion, restriction of individual extrudates together in a separate film, to obtain a ready-made film with a variety of properties, derived from individual layers. Layers of different polymers or resins can be combined by means of parallel extrusion of various polymers. Film can be processed in a traditional way or it can be oriented after cooling. The film may contain various additives, such as antioxidants, depletability, stabilizers, UV-radiation, additives reduce friction, fillers and antiadhesive.

Alternative in another film the way the layers are composited together by lamination. Other patterns can be a combination of extrusion on top of the solid film and co-extrusion on top of the solid film.

In addition to the film composition barrier coating of the invention can also be applied to the products from paper, fabric, fibers, or other manufactured material. For example, b is remoe the coating can be applied to a variety of packaging forms for packaging of various products. For example, the products can be Packed completely in a bag or pouch made of paper, cloth or other manufactured material that is coated with a barrier coating according to the invention. Paper products include any manufactured product, part of which includes the paper coated in accordance with the invention.

Coated paper product can be made completely out of paper or in part from paper. The invention covers paper products, manufactured or from one layer or many layers, for example, paper laminate, or a laminate of paper and plastic. In such constructions plastic cover usually ekstragiruyut on paper; clay are typically a slurry, which is applied to paper by means of a device for coating in the form of a knife (the blade on top of the paper with a certain gap and pressure). The coating can be applied on one or both sides. There are paper products that are covered (clay or polymer) so that the composition of the invention can be applied over a coating of clay or polymer.

Paper products that are designed for the reception of food, which should normally be positioned so that the coating did not come in contact with food products. In this case, between the food product and the covering layer is a layer of sealant.

Other paper the products for treatment composition according to the invention or made of paper, processed in accordance with the invention, include boxes of soap, containers for drying sheets of fabric and industrial packaging material. Food containers, which can also be treated with a composition according to the invention include any of wrapping material, bag, box, Cup, and other paper product, capable of coating, retention or preservation of the food product, hot or cold, wet or dry, as, for example, among other things, wrappers for burgers, wrappers for candy bars, pizza boxes and cereals, seasonings, soup mixes, coffee, spices and bags of potato chips, peanut butter and pet food.

The invention is particularly advantageous is used to protect the product from contamination from outside sources penetrating substances on the outside of the packaging material, protecting food from contamination of aromatic and aliphatic hydrocarbons, ftoruglevodorodnyh, ink and remnants of the packaging material, the emissions from transportation and other internal combustion engines, etc. Similarly, the invention can advantageously be used to prevent evaporation of certain aromas from the packaging (especially expensive fragrances, generally used in various consumer products, such as aromatic paper products is you, bars of soap, fragrant products for the shower, purifiers, softeners fabrics, detergents and dry bleaches, disinfectants. The invention can also be applied to packaging for condiments, spices, coffee and the like.

Food products are the most traditional material requiring protection from external contamination. Further, a variety of materials need to be packing in a barrier material that prevents the volatilization of the packaging of the smell of the material, which leads to a considerable loss of important aroma components of packaging materials, reducing the value of the product. Next, food odors can easily be skipped variety of packaging materials, attracting pests as insects and rodents. Important smells, requiring significant barriers include the odors produced coffee, ready-to-eat cereals, frozen pizza, cocoa or other products of chocolate, sauces and soups in the form of dry mixes, snacks (such as potato or corn chips, drying, crackers and popcorn, baked food products, fragrance oils or oil smell, meat products, in particular fragrances oils and oil smell, used for making popcorn in a microwave oven in paper containers for possible use in microwave ovens, fruit origami etc. In the case of dry pet food (such as food for dogs and cats, etc. can also benefit from the invention because it is often important to prevent the escape of unpleasant odors into the environment in the store and at home.

In other embodiments, implementations, it is desirable to keep the specific gas inside the manufactured products, such as helium, inside an inflatable balloon or an inert gas, such as nitrogen or argon, inside the packaging. Materials that are easily oxidized, such as reactive chemical reagents, can be packing in the container in which the environment is replaced by an inert atmosphere, and the invention is designed to eliminate oxygen and save the contents of the package (including inert atmosphere).

Composition barrier coating according to the invention can be applied to the film or other manufactured product, using any number of methods of application, including rod Meier, reverse gravure, direct gravure printing, Rotogravure printing, and reverse Rotogravure printing; flexography, slotted cylinder, and means spraying means; microglobulin printing, coating using a roll such as coating methods using two percussion instruments; the way back three-roll coating shock is about fixtures with lower feed and the like; methods of coating using a knife or blade, coating using a slot head; methods of coating by dipping, coating by means of rod and combinations thereof, as well as other technologies well known in the art. When the substrate is a film or sheet, the method of applying the coating preferably includes applying the solution composition barrier coating on a substrate with subsequent drying of the solution. Extra heat during lamination or extrusion coating helps to further curing of the coating. The thickness of the coating layer may vary depending on the type of substrate and the desired barrier properties and in some embodiments, the implementation is preferably at drying approximately 10 μm or less, more preferably about 1 μm or less. However, there is no lower limit, and in some embodiments, the implementation of the thickness is preferably 10 nm or more, 50 nm, 100 nm, 200 nm, 500 nm or more to obtain effective gazoballonnyj properties in certain embodiments implementations.

Unless deteriorate useful effects of the invention, the composition of the barrier layer may contain various additives, such as absorbers or blockers of UV rays, dyes, ant the oxidants, the flame retardants and the like. In some preferred embodiments, the implementation of these additives have an average particle size in the range of nanometers or less (e.g., flame retardant in the form of a colloidal antimony, UV barrier in the form of nanoscale titanium dioxide and zinc oxide).

Suitable flame retardants include halogen-hydrocarbons, such as commercially available brominated simple positivenergy ether (PBDE), chlorinated polybiphenil (PCB), the derivative florentikoli acid (such as dibutylamine and dimethylarsenate), organophosphates, bromide organic compounds and organochlorine compounds. You can also use suitable inorganic compounds. They include aluminum hydroxide, magnesium hydroxide, halogenated phosphorus compounds, red phosphorus, antimony trioxide, antimony pentoxide, boron compounds such as borates and salt tetrakishydroxymethyl. Additional connections include paraffins, brominated flame polybiphenil (RVV), easy-pentabromodiphenyl ether (BDE), simple octabromodiphenyl ether (BDE), simple DECA brominated diphenyl ether (BDE), hexabromocyclododecane (HBCD), tri-o-cresylphosphate, Tris(2,3-dibromopropyl)phosphate (TRIS), bis(2,3-dibromopropyl)phosphate and Tris(1-aziridinyl)phosphine oxide (TERA). The choice of flame retardant should be based on compatibility and desirable with the properties.

You can apply any suitable absorbers of ultraviolet rays. These materials include oxides of titanium, zirconium, cerium and titanium oxide mixed with tin (such as titanium dioxide, zirconium dioxide, cerium dioxide, tin oxide and indium), and the like.

In addition to the above additives can be used for more anionic compounds. You can use any song that carries a negative charge and gives opaque compositions useful property. Such compounds include carbon nanotubes with functional groups. Suitable functional groups include a variety of traditional organic functional groups (such as groups of carboxylic acids)and inorganic groups such as anionic magnetic particles or TiO2with anionic functional groups). An overview of some possible nanotubes with functional groups can be found in Ebbesen, J. Phys. Chem. Sol. 1996; 57(6-8):951-5 and Rakov, Chemistry of Carbon Nanotubes In: Gorotsi Y, edition of Nanomaterials Handbook, Boca Raton, FL: CRC Press; 2006, p. 105-75.

Additional additives include anionic compounds such as TiO2filled with anionic component, kaolin clay, anionic dyes and dyes, aluminum oxide and acid containing phosphorus. It should be noted that additional anionic component may include anionic form of additives, obsiden the x in this document, or their anionic variants with functional groups.

The invention includes a custom made product, in which either the coating or film is subsequently laminated with additional sealing film or extrusion cover sealing polymers. Sealant can be applied by any means known in the art. The sealant may be a single layer, or it can be layered. In some embodiments, executing the sealant is preferably chosen from the group consisting of polyethylene (including linear low density polyethylene, etc.), polypropylene and a copolymer of ethylene and vinyl acetate (EV acetate), polylactic acid (“PLA”), polyhydroxyalkanoate (“PHA”), or mixtures thereof.

Other clays are preferred plate vermiculite because of their high aspect ratio. These plates vermiculite preferably have a thickness of from 1 to 3 nanometers and have dimensions surface (length and/or width) of 10 to 30 microns. High coefficients forms allow numerous plates be held in place parallel to or almost parallel to the plane of the cover and inside thin layers of the coating and at the same time to have a sufficient width for education tortuous path for the passage of molecules such as oxygen molecules. Anionic polymer and non-polymeric compound with aneesa for dispersing and maintaining the dispersion of vermiculite clay. Particles of vermiculite negatively charged on their surface and positively charged on their edges. Without the use of dispersant particles of vermiculite aglomerated and deposited in the polymer solution. The use of anionic dispersant overcomes the need for extensive processing of vermiculite particles acetic acid or glycine, as described in other patents and literature to functionalitywith plate, so that they do not have glomeruli.

Suitable dispersing agents include compounds that carry a negative charge to the dispersion of vermiculite. Some suitable compounds include anionic polymers. Such anionic polymers include anionic polymer based on water, such as anionic Carnauba wax, paraffin wax or polyethylene wax. Other dispersing agents represent fragments of small molecules, such as ecological sodium, zirconium carbonate and ammonium and sodium salt poliasparaginovaya acid. In one embodiment, these dispersing agents are used in a mass ratio of the dispersant to the vermiculite in the range from approximately 0.02 to approximately 1.0, preferably from about 0.04 to about 0.5. In some embodiments, implementations can use a mixture of dispersing agents.

Suitable polymers used in the compositions, clucalc polymers, are capable of forming films. The film can be formed by knurling or blend of polymer (or of a solution or suspension of the polymer) on the surface and provide it possible to form a film. Such films can be formed by application of heat or without. The film can be formed in the presence of a solvent for the polymer, or in its absence.

The polymers according to the invention can be submitted in the covering composition, either pure or in solution. In some embodiments, executing the solution is an aqueous solution. In other embodiments, implementations can be applied non-aqueous solvent. Non-aqueous solvents include alcohols (such as methanol, ethanol and isopropanol, dimethylsulfoxide, acetone, methyl ethyl ketone (MEK) and hydrocarbons.

In some embodiments, executing the polymers can be submitted in the form of an emulsion. The urethane polymer is one such example. Another example of a suitable emulsion based on grades (PVDC). It should also be noted that many rubbers referred to throughout this application can also be submitted in the form of emulsions, for example, butyl, nitrile, styrene (SBR), epichlorhydrine, chloroprene, acrylic rubbers and the like. Some emulsions interval of dry residue ranges from a low percentage content of typically a few percent) to more than usually high interest content, equal to 55-60 wt.%. In some embodiments, executing PVDC is 55-60 wt.% and the urethane is 40 wt.%. In each of these cases, solutions can be diluted (in some cases up to 5-10 wt.%), to allow optimal processing and coating.

Although the coating can be applied with a wide variety of polymers, their barrier properties will vary depending on the composition. It should be noted that the introduction of polymers which have good barrier properties that are not included in currently available coatings, usually improves the barrier properties by several orders of magnitude. However, if the resin itself is not a good barrier, the barrier is not so improved.

In the invention can be applied to any polymer that forms a film with the desired properties. Some preferred polymers include polyhydroxy polymer, urethane and rubber. Suitable polyhydroxylated polymers include polyvinyl alcohol (PVOH) and a copolymer of ethylene and vinyl alcohol (EVOH), and mixtures thereof. One preferred PVOH is vysokomineralizovannye PVOH, which is more crystalline in nature than discoverrecovery PVOH. Vysokomineralizovannye PVOH is more crystalline and therefore has better integrity (defined as the best with rotisserie gas transfer) at higher relative humidity levels.

PVOH usually obtained by hydrolysis of polyvinyl acetate. In this reaction, the acetate groups of polyvinyl acetate is replaced by an alcohol group by hydrolysis. The more acetate groups are replaced, the higher the hydrolysis of the PVOH resin. For example, in the hydrolyzed at 95% of the PVOH resin approximately 5% of the acetate groups remain unchanged. Similarly, in the hydrolyzed 99% of the PVOH resin approximately 1% of the acetate groups remain unchanged. In the present invention can be applied PVOH different degrees of hydrolysis. In some cases, the degree of hydrolysis of greater than or equal to 90%, 95% or 99%.

You can use any natural or synthetic rubber, which gives the desired properties. Suitable rubbers include polychloroprene, butyl rubber, acrylic rubber and nitrile rubber. Other synthetic rubbers include rubbers derived from isoprene, butadiene, SBR (styrene butadiene rubber), isobutene/isoprene and EPDM (ethylene-propylene-butadiene rubber).

Specialists are well known urethane polymers. Suitable urethane polymers include polymers that are capable of forming aqueous dispersions.

Containing urethane polymers include polyurethanes obtained by technologies known in the art. In some embodiments, executing the polyisocyanate compound (aromatic and aliphatic interacts with the connection, possessing two or more reactive terminal hydrogen atoms. In some embodiments, executing the isocyanate is a diisocyanate. In some embodiments, executing the isocyanates with three or more functional groups can be used alone or in mixtures with diisocyanates. In some embodiments, implementations are preferred aliphatic isocyanates.

Suitable connections with reactive terminal hydrogen atoms include polyols such as polyethylene glycol, polypropyleneglycol and complex polietilenglikol. These compounds can interact with the isocyanate compound or in the presence or in the absence of catalysts.

In some embodiments, executing the urethanes may have polar plots attached to them, to facilitate compatibility with water. Such sites include the group of carboxylic acids, simple ester, sulfopropyl, group sulfone, sulfhydryl and ammonium. See, for example, patent application no WO 98/03860.

In some embodiments, executing the polymer can be formed on the spot. Urethane, for example, can be obtained by reaction of MDI with suitable connections with the formation of urethane linkages. Such compounds may be useful in a variety of end applications, is aka as adhesives (e.g., two-component adhesive).

In some preferred embodiments, executing the polymers can be crosslinked. You can apply any suitable crosslinking agent, which provides desirable properties. Examples of crosslinking agents include ethandiol (for example, Glyoxal 40 from Clairant Corporation), the condensation of glyoxal cyclic urea (for example, SunRez 700) and zirconium carbonate and ammonium. In some embodiments, executing the quantity of crosslinking agent is from 0.1 to 50% relative to the weight of the polymer, capable of forming films.

In some embodiments, executing coverts composition includes an aqueous dispersion. In some embodiments, executing mass percentage dry matter content is 0.5-10%. In other embodiments, implementations mass percentage content of dry residue is 3-8% or 4-6%.

The invention is illustrated by the following examples, which are intended to illustrate and not to limit.

Example 1

A portion of PVOH concentration equal to 10%, was obtained by dissolving 100 g of Celvol 107 (Celvol is a trademark of Celanese Corporation) in 900 grams of deionized water at 200°F (93,3°C). To the mixture was added methyl paraben in an amount of 0.1 mass% of the mass of Celvol, or 0.1 gram to prevent the formation of germs. The solution was heated for the 20 minutes until while all the amount of PVOH and methylparaben were not dissolved. Later the solution was cooled and filtered through a sieve of 200 mesh to remove particulate impurities. Tested concentration using hand Refractometer and regulated to include water evaporated during the stage of dissolution. Evaporated water was replaced with deionized water so that the reading Refractometer stood at 11.5 BRIX (based on the known ratio of the BRIX readings to concentration, reading, equal to 11.5 BRIX, concentration in water dry residue PVOH equal to 10%).

Weighed a Cup containing 15.5 grams of 10% solution of Celvol 107. 10% solution of Celvol 107 added additional 24.8 grams of deionized water. To this mixture was added to six-tenths of one gram of anionic Carnauba wax Michem 62125AM (Michem is a trademark Michelman, Inc.). The mixture was stirred gently for 5 seconds. To a mixture of PVOH and wax were added to 5.0 grams of Microlite 963 (Microlite is a trademark of W.R. Grace & Co. - Conn., and Microlite 963 is a suspension of vermiculite in water with a concentration of 7.5 wt.%). The mixture was stirred for 5 seconds for dispersion of the particles of vermiculite. Watched noticeable turbulence particles, indicating the alignment of the plates, since the vortex motion, smoothing the surface of the plates parallel to the flow of the mixture. To this mixture dobavlyali,0 gram of Glyoxal 40 L from Clairant Corporation (Glyoxal 40 L is the designation of the product, used Clairant for atendees). The mixture was stirred gently for 5 seconds. The mixture still showed appreciable turbulence particle indicating that there is a singularity plates. The total mass of the solution was 47.9 grams.

The coating described above, had a dry matter content of 6.0 wt.% or 5.0 %by volume, calculated taking (dry) mass density of the coating equal to 1.2 g/cm3. This coating was diluted to 3.0% of dry residue with additional 47.9 grams of deionized water. This solution was applied on a PET film gauge 48, treated by corona discharge using a #15 of the rod Meier. Of the coating was removed moisture by drying at 140°F (60°C) for one minute using a hand air dryers. Coverage was utverjdali at 300°F (148,9°C) for 2 minutes. Was calculated that the thickness of the dry barrier coating was 0.95 μm, based on the concentration of 3% and the amount of wet coating, distributed by rod Meier, 38,1 microns. PET film coated had a transfer rate of oxygen (“OTR”), equal of 0.004 cm3/100 inch2/day/atmosphere at a relative humidity of 0% when using Ox-Tran 2/16 (Ox-Tran is a registered trademark of MOCON Corporation).

Example 2

A portion of PVOH concentration equal 9,565%received by rastvoreniya pounds (45,4 kg) Celvol 107 (Celvol is a trademark of Celanese Corporation), 900 pounds (408,2 kg) of deionized water at 190 to 205°F (87,8 up for 96.1°C). To the mixture was added methyl paraben in an amount of 0.1 mass% of the mass of Celvol, or 0.1 lb (0,045 kg), to prevent the formation of germs. The solution was heated for 45 minutes before until the whole amount of PVOH and methylparaben is dissolved. Later the solution was cooled and filtered through a sieve with a size of 80 mesh to remove particulate impurities. Tested concentration using hand Refractometer and regulated to account for the water evaporated during the stage of dissolution. Evaporated water was replaced with deionized water so that the reading Refractometer accounted for 11.0 BRIX (reading, equal 11,0 BRIX corresponds to the concentration of PVOH, equal 9,565%, based on the known ratio of the BRIX readings to concentration, where the concentration of PVOH = 1,h BRIX.)

Uterine mixture coating was obtained by mixing 1805,8 grams of PVOH solution with a concentration of 9,565% 1510,9 grams of deionized water. To this mixture was added 37.6 grams of anionic Carnauba wax Michem 62125AM (Michem is a trademark Michelman, Inc.). The mixture was stirred gently for 5 seconds. To this mixture was further added 125.4 grams of Glyoxal 40 from Clairant Corporation (Glyoxal 40 L is the product designation applied Clairant for atendees). This mixture was stirred gently for 10 seconds. This uterine mixture was transferred to a laboratory outside the production VM is the sty with a separate container, containing 313,5 gram of Microlite 963 (Microlite is a trademark of W.R. Grace & Co. - Conn., and Microlite 963 is a suspension of vermiculite in water concentration of 7.5 wt.%).

Immediately to the laboratory section of the fallopian mix records of clay were mixed together and applied on the treated by corona discharge of the PET film gauge 92 using the device for coating for Rotogravure printing Nordmeccanica Labo Combi width of 12 inches (0.3 m) using 110 linear analog engraving cylindrical guide with a speed of 30 meters (98.4 lbs) per minute. The blade came in contact with the front part of the analog cylinder to maintain the volume of a dense coating on the film. The coating was dried, passing through a continuous dryer length of 12 feet (3.7 m) at 210°F, which accounted for 98.9°C). The mass of the obtained coatings was measured as 0,0055 g / 100 cm2or thickness and 0.46 μm, when using the estimated density of the dry coating, equal to 1.2 g/cm3. The obtained transmission rate of oxygen for this coverage when the measurement was 0,008 cm3/100 inch2/day/atmosphere at a relative humidity of 0% and 23°C when using Ox-Tran 2/16 (Ox-Tran is a registered trademark of MOCON Corporation).

Example 3

The coating obtained in Example 2 was applied on the same device for applying rotationally print when applying the same conditions except instead of 110-linear analog of the cylinder used 200-linear analog of the cylinder.

The mass of the obtained coatings were found as 0,0036 g / 100 cm2that corresponds to a thickness of 0.30 μm when using the estimated density of the dry coating, equal to 1.2 g/cm3. Obtained when measuring the transmission rate of oxygen for this coverage was 0,074 cm3/100 inch2/day/atmosphere at a relative humidity of 0% and 23°C when using Ox-Tran 2/16.

Example 4

A portion of PVOH concentration equal 9,565%, was obtained by dissolving 100 pounds (45,4 kg) Celvol 107 (Celvol is a trademark of Celanese Corporation), 900 pounds (408,2 kg) of deionized water at 190 to 205°F (87,8 up for 96.1°C). To the mixture was added methyl paraben in an amount of 0.1 mass% of the mass of Celvol, or 0.1 lb (0,045 kg), to prevent the formation of germs. The solution was heated for 45 minutes before until the whole amount of PVOH and methylparaben is dissolved. Later the solution was cooled and filtered through a sieve with a size of 80 mesh to remove particulate impurities. Tested concentration using hand Refractometer and regulated to account for the water evaporated during the stage of dissolution. Evaporated water was replaced with deionized water so that the reading Refractometer accounted for 11.0 BRIX (reading, equal 11,0 BRIX corresponds to concentric and PVOH, equal 9,565%, based on the known ratio of the BRIX readings to concentration, where the concentration of PVOH = 1,h BRIX).

Uterine mixture coating was obtained by mixing 6437 grams of PVOH solution with a concentration of 9,565% 9603 grams of deionized water. To this mixture was added 239 grams of anionic Carnauba wax Michem 62125AM (Michem is a trademark Michelman, Inc.). The mixture was stirred gently for 20 seconds. To this mixture was further added 797 grams of Glyoxal 40 from Clairant Corporation (Glyoxal 40 L is the product designation applied Clairant for atendees). This mixture was stirred gently for 20 seconds. This uterine mixture was placed in a container with a capacity of 5 gallons (18.9 l) and transferred to the external production area along with a separate container containing 5 gallons of Microlite 963 (Microlite is a trademark of W.R. Grace & Co. - Conn., and Microlite 963 is a suspension of vermiculite in water with a concentration of 7.5 wt.%).

Immediately in the workplace uterine mixture from the container 5 gallon and 1992,5 gram records of clay were mixed together and placed in the tank next to the device for laminating coatings water-based Dri-Tec width of the machine equal to 57 inches (1.4 m). The floor was pumped into the tank using a diaphragm pump on a pallet, on which 200-linear analog cylinder would is partially immersed in the coating. The blade is attached to the cylinder, supported the correct amount of coating on the cylinder for transferring a film width of 37 inches (0,94 m) gauge 48, treated by corona discharge, up to 50+ DIN·see the Excess coating with a doctor knife fell on the second tray below the tray containing coating for analog cylinder, and flowed back to the reservoir by gravity. The coating was applied on a PET film with a machine speed of 400 feet (121,9 m) per minute. To improve the uniformity of the coating film was applied a smooth rod, rotating in the opposite direction to the movement of the film. For drying of the coating applied drying with a length of 25 feet (7.6 m) at 215°F (101,7°C). The mass of the obtained coatings were found as 0,0026 g / 100 cm2that corresponds to the thickness of 0.22 microns when using the estimated density of the dry coating, equal to 1.2 g/cm3. Obtained when measuring the transmission rate of oxygen for this coating was of 0.21 cm3/100 inch2/day/atmosphere at a relative humidity of 0% and 23°C when using Ox-Tran 2/16 (Ox-Tran is a registered trademark of MOCON Corporation).

Example 5

A portion of PVOH concentration equal to 10%, was obtained by dissolving 100 g of Celvol 107 (Celvol is a trademark of Celanese Corporation) in 900 grams of deionized water at 200°F (93,3°C). To the mixture was added methyl paraben inthe number of 0.1 mass% of the mass of Celvol, or 0.1 gram, to prevent the formation of germs. The solution was heated for 20 minutes before until the whole amount of PVOH and methylparaben is dissolved. Later the solution was cooled and filtered through a sieve of 200 mesh to remove particulate impurities. Tested concentration using hand Refractometer and regulated to account for the water evaporated during the stage of dissolution. Evaporated water was replaced with deionized water so that the reading Refractometer stood at 11.5 BRIX (based on the known ratio of the BRIX readings to concentration).

Weighed a Cup containing 15.5 grams of 10% solution of Celvol 107. 10% solution of Celvol 107 added additional 23.8 grams of deionized water. To this mixture was added to four-tenths of one gram of Magnesium Elektron Inc. (MEI) Bacote 20 (Bacote 20 is a trademark of zirconium carbonate and ammonium company MEI). The mixture was stirred gently for 5 seconds. To a mixture of PVOH and Bacote 20 was added to 5.0 grams of Microlite 963 (Microlite is a trademark of W.R. Grace & Co. - Conn., and Microlite 963 is a suspension of vermiculite in water with a concentration of 7.5 wt.%). The mixture was stirred for 5 seconds for dispersion of the particles of vermiculite. Watched noticeable turbulence particles, indicating the alignment of the plates, since the vortex motion, smoothing the surface of the plates parallel to the flow of MESI. To this mixture was added 2.0 grams of Glyoxal 40 L from Clairant Corporation (Glyoxal 40 L is the product designation applied Clairant for atendees). The mixture was stirred gently for 5 seconds. In the mixture still showed appreciable turbulence particle indicating that there is a singularity plates. The total mass of the solution was 46.7 grams.

The coating described above, had a dry matter content of 6.0%. This coating was dissolved to 3.0% of dry residue with additional 46.7 grams of deionized water. This solution was applied to a film of the caliber 48, treated by corona discharge using a #15 of the rod Meier. Of the coating was removed moisture by drying at 140°F (60°C) for one minute. Then the floor was utverjdali at 300°F (148,9°C) for 2 minutes. Was calculated that the thickness of the dry barrier coating was 1.14 microns, based on the concentration of 3% and the amount of wet coating, distributed by rod Meier, 38.1 microns. PET film coated had a transfer rate of oxygen (“OTR”), equal to 0.007 cm3/100 inch2/day/atmosphere at a relative humidity of 0% and 23°C when using Ox-Tran 2/16 (Ox-Tran is a registered trademark of MOCON Corporation).

Example 6

A portion of PVOH concentration equal to 10%, was obtained by dissolving 100 g of Celvol E (Celvol is a trademark Celanse Corporation) 900 grams of deionized water at 200°F (93,3°C). To the mixture was added methyl paraben in an amount of 0.1 mass% of the mass of Celvol, or 0.1 gram, to prevent the formation of germs. The solution was heated for 20 minutes before until the whole amount of PVOH and methylparaben is dissolved. Later the solution was cooled and filtered through a sieve of 200 mesh to remove particulate impurities. Tested concentration using hand Refractometer and regulated to account for the water evaporated during the stage of dissolution. Evaporated water was replaced with deionized water so that the reading Refractometer stood at 11.5 BRIX (based on the known ratio of the BRIX readings to concentration).

Weighed a Cup containing 15.5 grams of 10% solution of Celvol means a 10% solution of Celvol E was added 24.3 grams of deionized water. To this mixture was added to two-tenths of one gram of Magnesium Elektron Inc. (MEI) Bacote 20 (Bacote 20 is a trademark of zirconium carbonate and ammonium company MEI). The mixture was stirred gently for 5 seconds. To a mixture of PVOH and Bacote 20 was added to 5.0 grams of Microlite 963 (Microlite is a trademark of W.R. Grace & Co. - Conn., and Microlite 963 is a suspension of vermiculite in water with a concentration of 7.5 wt.%). The mixture was stirred for 5 seconds for dispersion of the particles of vermiculite. Watched noticeable turbulence particles, indicating the alignment of the plates, as the whirl of smoothing the surface of the plates parallel to the flow of the mixture. To this mixture was added to three-tenths of one gram of anionic Carnauba wax Michem 62125AM (Michem is a trademark Michelman, Inc.). And, finally, to this mixture was added 2.0 grams of Glyoxal 40 L from Clairant Corporation (Glyoxal 40 L is the product designation applied Clairant for atendees). The mixture was stirred gently for 5 seconds. In the mixture still showed appreciable turbulence particle indicating that there is a singularity plates. The total mass of the solution was 47.3 grams.

The coating described above, had a dry matter content of 6.0 wt.% or 5.0 %by volume, assuming that the estimated bulk density (dry) coverage of 1.2 g/cm3. This coating was diluted to 3.0% of dry residue with additional 47.3 grams of deionized water. This solution was applied on a PET film gauge 48, treated by corona discharge using a #15 of the rod Meier. Of the coating was removed moisture by drying at 140°F (60°C) for one minute. Then the floor was utverjdali at 300°F (148,9°C) for 2 minutes. Was calculated that the thickness of the dry barrier coating was 0.95 micron, based on the concentration of 3% and the amount of wet coating, distributed by rod Meier, 38.1 microns. PET film coated had a transfer rate of oxygen (“OTR”), equal to 0.007 cm3/100 inch2/day/atmosphere when the relative is positive humidity of 0% and 23°C when using Ox-Tran 2/16 (Ox-Tran is a registered trademark of MOCON Corporation).

Example 7

A portion of PVOH concentration equal to 10%, was obtained by dissolving 100 g of Celvol 107 (Celvol is a trademark of Celanese Corporation) in 900 grams of deionized water at 200°F (93,3°C). To the mixture was added methyl paraben in an amount of 0.1 mass% of the mass of Celvol, or 0.1 gram, to prevent the formation of germs. The solution was heated for 20 minutes before until the whole amount of PVOH and methylparaben is dissolved. Later the solution was cooled and filtered through a sieve of 200 mesh to remove particulate impurities. Tested concentration using hand Refractometer and regulated to account for the water evaporated during the stage of dissolution. Evaporated water was replaced with deionized water so that the reading Refractometer stood at 11.5 BRIX (based on the known ratio of the BRIX readings to concentration).

Prepared several solutions (table 1) as in Example 6, but with different amounts of Glyoxal 40 L, where Glyoxal was lowered from the number shown in example 6, the decrease was replaced by the same weight of deionized water. In this way the total weight of each solution was maintained at 46.8 grams.

Table 1
Sample
#
PVOH, 10%, g Deionized
water, g
Bacote
20, g
Microlite 963, gMichem 62125AM,
g
Glyoxal,
g
115,523,80,25,00,32,0
215,524,80,25,00,31,0
315,5to 25.30,25,00,30,5
415,525,60,25,00,30,2

Weighed four cups containing 15.5 grams of 10% solution of Celvol 107. For each of the 10% solutions Celvol 107 was added deionized water. To each of these mixtures was added to two-tenths of one gram of Magnesium Elektron Inc. (MEI) Bacote 20 (Bacote 20 is a trademark of zirconium carbonate and ammonium by MI). The mixture was stirred gently for 5 seconds. Each of the blends of PVOH and Bacote 20 was added 5.0 grams of Microlite 963 (Microlite is a trademark of W.R. Grace & Co. - Conn., and Microlite 963 is a suspension of vermiculite in water concentration of 7.5 wt.%). The mixture was stirred for 5 seconds for dispersion of the particles of vermiculite. Watched noticeable turbulence particles, indicating the alignment of the plates, since the vortex motion, smoothing the surface of the plates parallel to the flow of the mixture. To these mixtures were added to three-tenths of one gram of anionic Carnauba wax Michem 62125AM (Michem is a trademark Michelman, Inc.). To these mixtures was added Glyoxal 40 L from Clairant Corporation (Glyoxal 40 L is the product designation applied Clairant for atendees) in accordance with the amount shown in table 1, are presented in this example. The mixture was stirred gently for 5 seconds. In the mixture still showed appreciable turbulence particle indicating that there is a singularity plates. The total mass of each solution was 46.8 grams.

All the described coating contained the same amount of PVOH and vermiculite Microlite. Each floor was dissolved by adding 15 grams of water, 5 grams of each solution. Then these solutions were applied to the PET film gauge 48, treated by corona discharge using a #15 of the rod meje is and. Of the coating was removed moisture by drying at 140°F (60°C) for one minute. Further coverage was utverjdali at 300°F (148,9°C) for 2 minutes. Based on the percentage of solids in each coating composition was calculated thickness of the dry barrier coatings using these concentrations, along with constant quantities of wet coating, distributed by rod Meier, 38.1 microns. Analyzed the PET film coated on the transfer rate of oxygen (“OTR”) at a relative humidity of 0% and 23°C when using Ox-Tran 2/16 (Ox-Tran is a registered trademark of MOCON Corporation). The concentration of coating thickness and OTR values shown in table 2.

Table 2
Sample
#
The concentration of solids after dilution, %The coating thickness, micronsOTR, cm3/100 inch2/day/atmosphere
11,500,570,05
21,290,490,08
3 1,180,450,04
41,120,430,05

Example 8

A portion of PVOH concentration equal to 10%, was obtained by dissolving 100 g of Celvol 107 (Celvol is a trademark of Celanese Corporation) in 900 grams of deionized water at 200°F (93,3°C). To the mixture was added methyl paraben in an amount of 0.1 mass% of the mass of Celvol, or 0.1 gram, to prevent the formation of germs. The solution was heated for 20 minutes before until the whole amount of PVOH and methylparaben is dissolved. Later the solution was cooled and filtered through a sieve of 200 mesh to remove particulate impurities. Tested concentration using hand Refractometer and regulated to account for the water evaporated during the stage of dissolution. Evaporated water was replaced with deionized water so that the reading Refractometer stood at 11.5 BRIX (based on the known ratio of the BRIX readings to concentration).

Prepared multiple solutions in the same way as in example 6, but with different amounts of Glyoxal 40 L, where Glyoxal was lowered from the number shown in example 6, the decrease was replaced by the same weight of deionized water. In this way the total weight of each solution was maintained at 46,8 Gras is mA.

Table 3
Sample
#
PVOH, 10%, gDeionized
water, g
Bacote
20, g
Microlite 963, gMichem 62125AM,
g
Glyoxal,
g
115,523,80,25,00,32,0
215,524,80,25,00,31,0
315,5to 25.30,25,00,30,5
415,525,60,25,00,30,2
515,525,7 0,25,00,30,1
615,525,80,25,00,30,0

Weighed six cups containing 15.5 grams of 10% solution of Celvol 107. For each of the 10% solutions Celvol 107 was added deionized water. To each of these mixtures was added to two-tenths of one gram of Magnesium Elektron Inc. (MEI) Bacote 20 (Bacote 20 is a trademark of zirconium carbonate and ammonium company MEI). The mixture was stirred gently for 5 seconds. Each of the blends of PVOH and Bacote 20 was added to 5.0 grams of Microlite 963 (Microlite is a trademark of W.R. Grace & Co. - Conn., and Microlite 963 is a suspension of vermiculite in water with a concentration of 7.5 wt.%). The mixture was stirred for 5 seconds for dispersion of the particles of vermiculite. Watched noticeable turbulence particles, indicating the alignment of the plates, since the vortex motion, smoothing the surface of the plates parallel to the flow of the mixture. To these mixtures were added to three-tenths of one gram of anionic Carnauba wax Michem 62125AM (Michem is a trademark Michelman, Inc.). To these mixtures was added Glyoxal 40 L from Clairant Corporation (Glyoxal 40 L is the product designation applied Clairant of atendees) in accordance with the amount shown in table 3. The mixture was stirred gently for 5 seconds. In the mixture still showed appreciable turbulence particle indicating that there is a singularity plates. The total mass of each solution was 46.8 grams.

Then each Cup coverage was wspanialy for 45 seconds using hand mixer Trudeau. Then the foam settled, and reported coverage. In each of the mixtures, which used Glyoxal, the mixture showed the turbulence of the particles, indicating the alignment of the plates. In the mixture, where Glyoxal was not applied (Sample #6), the mixture contained agglomerated particles, indicating that not preserved the stability of the mixture to the pan. Shear-stable is important, for example, when the coating film applying device for applying coatings for Rotogravure printing, doctor blade of the knife on the analog cylinder creates a shift that may cause movement of the vermiculite plates one on another and agglomerating.

Example 9

A portion of PVOH concentration equal to 10%, was obtained by dissolving 100 g of Celvol 107 (Celvol is a trademark of Celanese Corporation) in 900 grams of deionized water at 200°F (93,3°C). To the mixture was added methyl paraben in an amount of 0.1 mass% of the mass of Celvol, or 0.1 gram, to prevent the formation of germs. The solution nahrewali for 20 minutes until while all the amount of PVOH and methylparaben is dissolved. Later the solution was cooled and filtered through a sieve of 200 mesh to remove particulate impurities. Tested concentration using hand Refractometer and regulated to account for the water evaporated during the stage of dissolution. Evaporated water was replaced with deionized water so that the reading Refractometer stood at 11.5 BRIX (based on the known ratio of the BRIX readings to concentration.)

Weighed a Cup containing 15.5 grams of 10% solution of Celvol 107. 10% solution of Celvol 107 added additional 22.9 grams of deionized water. To this mixture was added 0.05 grams of 2% solution cellsurface sodium (obtained by dissolving 5 grams of 40% active solution of 95 grams of deionized water). The mixture was stirred gently for 5 seconds. To a mixture of PVOH and wax were added to 5.0 grams of Microlite 963 (Microlite is a trademark of W.R. Grace & Co. - Conn., and Microlite 963 is a suspension of vermiculite in water with a concentration of 7.5 wt.%). The mixture was stirred for 5 seconds for dispersion of the particles of vermiculite. Watched noticeable turbulence particles, indicating the alignment of the plates, since the vortex motion, smoothing the surface of the plates parallel to the flow of the mixture. To this mixture was added 2.0 grams of Glyoxal 40 L from Clairant Corporation (Glyoxal 40 L is the designation of the product, used Clairant for atendees). The mixture was stirred gently for 5 seconds. In the mixture still showed appreciable turbulence particle indicating that there is a singularity plates. The total mass of the solution amounted to 45.4 grams.

The coating described above, had a dry matter content of 6.0 wt.% or 5.0 %by volume, assuming that the estimated bulk density (dry) coverage of 1.2 g/cm3. This coating was diluted to 3.0% of dry residue with additional 45.4 grams of deionized water. This solution was applied on a PET film gauge 48, treated by corona discharge using a #15 of the rod Meier. Of the coating was removed moisture by drying at 140°F (60°C) for one minute. Then the floor was utverjdali at 300°F (148,9°C) for 2 minutes. Was calculated that the thickness of the dry barrier coating was 0.95 micron, based on the concentration of 3% and the amount of wet coating, distributed by rod Meier, 38.1 microns. PET film coated had a transfer rate of oxygen (“OTR”), equal of 0.004 cm3/100 inch2/day/atmosphere at a relative humidity of 0% when using Ox-Tran 2/16 (Ox-Tran is a registered trademark of MOCON Corporation). PET film coated possessed by the rate of water vapor transmission (“WVTR”)of 0.5 g/100 inch2/day/atmosphere and 23°C at PR is changing PERMATRAN (PERMATRAN is a registered trademark of MOCON Corporation). The comparative film thickness obtained without dispersion of vermiculite Microlite, had a WVTR equal to 1.3 g/100 inch2/day/atmosphere and 23°C, which symbolizes the PET film without any covering.

Example 10

A portion of PVOH concentration equal to 10%, was obtained by dissolving 100 g of Celvol 107 (Celvol is a trademark of Celanese Corporation) in 900 grams of deionized water at 200°F (93,3°C). To the mixture was added methyl paraben in an amount of 0.1 mass% of the mass of Celvol, or 0.1 gram, to prevent the formation of germs. The solution was heated for 20 minutes before until the whole amount of PVOH and methylparaben is dissolved. Later the solution was cooled and filtered through a sieve of 200 mesh to remove particulate impurities. Tested concentration using hand Refractometer and regulated to account for the water evaporated during the stage of dissolution. Evaporated water was replaced with deionized water so that the reading Refractometer stood at 11.5 BRIX (based on the known ratio of the BRIX readings to concentration).

Weighed a Cup containing 15.5 grams of 10% solution of Celvol 107. 10% solution of Celvol 107 was added 24.9 grams of deionized water. To this mixture was added 0.1 gram of 2% solution cellsurface sodium (obtained by dissolving 5 grams of 40% active solution is 95 grams of deionized water). The mixture was stirred gently for 5 seconds. To a mixture of PVOH and wax was added 12.5 grams of Microlite 963 (Microlite is a trademark of W.R. Grace & Co. - Conn., and Microlite 963 is a suspension of vermiculite in water with a concentration of 7.5 wt.%). The mixture was stirred for 5 seconds for dispersion of the particles of vermiculite. Watched noticeable turbulence particles, indicating the alignment of the plates, since the vortex motion, smoothing the surface of the plates parallel to the flow of the mixture. To this mixture was added 2.0 grams of Glyoxal 40 L from Clairant Corporation (Glyoxal 40 L is the product designation applied Clairant for atendees). The mixture was stirred gently for 5 seconds. In the mixture still showed appreciable turbulence particle indicating that there is a singularity plates. The total mass of the solution was 55,0 grams.

The coating described above, had a dry matter content of 6.0 wt.% or 5.0 %by volume, assuming that the estimated bulk density (dry) coverage of 1.2 g/cm3. This coating was diluted to 3.0% of dry residue with additional 55,0 grams of deionized water. This solution was applied on a PET film gauge 48, treated by corona discharge using a #15 of the rod Meier. Of the coating was removed moisture by drying at 140°F (60°C) for one minute. Then the floor was utverjdali at 300 is F (148,9°C) for 2 minutes. Was calculated that the thickness of the dry barrier coating was 0.95 micron, based on the concentration of 3% and the amount of wet coating, distributed by rod Meier, 38.1 microns. PET film coated had a transfer rate of oxygen (“OTR”), equal 0,0006 cm3/100 inch2/day/atmosphere at a relative humidity of 0% and 23°C when using Ox-Tran 2/16 (Ox-Tran is a registered trademark of MOCON Corporation). PET film coated possessed by the rate of water vapor transmission (“WVTR”)of 0.5 g/100 inch2/day/atmosphere and 23°C when using PERMATRAN (PERMATRAN is a registered trademark of MOCON Corporation).

Example 11

Ten grams of Witcobond UCX-321 was mixed with 181,5 grams of deionized water (Witcobond is a trademark of Chemtura Cjrporation.) To this mixture was added 0.1 gram of 2% solution cellsurface sodium (obtained by dissolving 5 grams of 40% active solution of 95 grams of deionized water). The mixture was stirred gently for 5 seconds. To this mixture was added 12.5 grams of Microlite 963 (Microlite is a trademark of W.R. Grace & Co. - Conn., and Microlite 963 is a suspension of vermiculite in water concentration of 7.5 wt.%). The mixture was stirred for 5 seconds for dispersion of the particles of vermiculite. To this mixture was added 2.0 grams of Glyoxal 40 L from Clairant Corporation (Glyoxal 40 L is additional the drug product, used Clairant for atendees). The mixture was stirred gently for 5 seconds. The mixture was gray and opaque. The total mass of the solution was 206,1 grams. The mixture was 2,82 wt.% the dry residue and approximately 2.0 % by volume of dry residue after application of the estimated density of the dry coating, equal to 1.4 g/cm3.

The coating described above was applied on a PET film gauge 48, treated by corona discharge using a #15 of the rod Meier. Of the coating was removed moisture by drying at 140°F (60°C) for one minute. Then the floor was utverjdali at 300°F (148,9°C) for 2 minutes. Was calculated that the thickness of the dry barrier coating was approximately 0.76 microns. PET film coated possessed by the rate of water vapor transmission (“WVTR”)equal to 0.7 g/100 inch2/day/atmosphere and 23°C when using PERMATRAN (PERMATRAN is a registered trademark of MOCON Corporation). Film thickness compared, obtained without dispersion of vermiculite Microlite, had a WVTR equal to 1.3 g/100 inch2/day/atmosphere and 23°C, which symbolizes the PET film without any covering.

Example 12

A portion of PVOH concentration equal to 10%, was obtained by dissolving 100 g of Celvol E (Celvol is a trademark of Celanese Corporation) in 900 grams of deionized water at 200°F (93,3°C). To the mixture was added m tilaran in an amount of 0.1 mass% of the mass of Celvol, or 0.1 gram, to prevent the formation of germs. The solution was heated for 20 minutes before until the whole amount of PVOH and methylparaben is dissolved. Later the solution was cooled and filtered through a sieve of 200 mesh to remove particulate impurities. Tested concentration using hand Refractometer and regulated to account for the water evaporated during the stage of dissolution. Evaporated water was replaced with deionized water so that the reading Refractometer stood at 11.5 BRIX (based on the known ratio of the BRIX readings to concentration reading is equal to 11.5 BRIX, concentration in water dry residue PVOH equal to 10%).

Weighed a Cup containing 15.5 grams of 10% solution of Celvol means a 10% solution of Celvol E added additional 23.5 grams of deionized water. To this mixture was added to two-tenths of one gram of anionic Carnauba wax Michem 62125AM (Michem is a trademark Michelman, Inc.). The mixture was stirred gently for 5 seconds. To a mixture of PVOH and wax were added to 5.0 grams of Microlite 963 (Microlite is a trademark of W.R. Grace & Co. - Conn., and Microlite 963 is a suspension of vermiculite in water with a concentration of 7.5 wt.%). The mixture was stirred for 5 seconds for dispersion of the particles of vermiculite. Watched noticeable turbulence particles, indicating the alignment of the plates, so as Vikramaditya smoothing the surface of the plates parallel to the flow of the mixture. To this mixture was added 2.0 grams of Glyoxal 40 L from Clairant Corporation (Glyoxal 40 L is the product designation applied Clairant for atendees). The mixture was stirred gently for 5 seconds. In the mixture still showed appreciable turbulence particle indicating that there is a singularity plates. The total mass of the solution was 46.2 grams.

The coating described above, had a dry matter content of 6.0 wt.% or 5.0 %by volume, assuming that the estimated bulk density (dry) coverage of 1.2 g/cm3. This coating was diluted to 3.0% of dry residue with additional 46.2 grams of deionized water. This solution was applied on a PET film gauge 48, treated by corona discharge using a #15 of the rod Meier. Of the coating was removed moisture by drying at 140°F (60°C) for one minute using a hand air dryers. Then the floor was utverjdali at 300°F (148,9°C) for 2 minutes. Was calculated that the thickness of the dry barrier coating was 0.95 micron, based on the concentration of 3% and the amount of wet coating, distributed by rod Meier, 38.1 microns. PET film coated had a transfer rate of oxygen (“OTR”), equal to 0,006 cm3/100 inch2/day/atmosphere at 50% relative humidity and 23°C and 0.51 cm3/100 inch2/day/atmosphere at a relative humidity of 68%and 23°C when using Ox-Tran 2/16 (Ox-Tran is a registered trademark of MOCON Corporation).

Although the invention as described with reference to a preferred variant implementation, the experts will know what can be done various changes and features of the invention may be replaced by equivalents without departing from the scope of the invention. In addition, you can spend a lot of modifications to adapt to a particular situation or material in relation to the ideas of the invention without deviating from its scope. Therefore, it is understood that the invention is not limited to the private embodiment, disclosed as the best method proposed for carrying out the invention, but that the invention will include all options realizations that fall in the scope of the attached claims.

1. Covered with the film, including:
the carrier film, which is selected from the group including polyethylene terephthalate, glycol complex polyester (PET-G), nylon, biaxially oriented polypropylene, oriented polypropylene, cast polypropylene, polystyrene, polyethylene, polyvinyl chloride, polylactic acid (PLA), polyhydroxyalkanoate (RNA), PVC, and paper; and
coating at least on one surface of the carrier film, containing:
(a) vermiculite;
(b) a polymer capable of forming a film selected from polyhydroxylated polymer clay is a and ratanawaraha polymer;
(c) a dispersant for vermiculite in the polymer and the dispersant carries a negative charge; and
(d) a crosslinking agent.

2. Coated film according to claim 1, in which polyhydroxylated composition is a polyvinyl alcohol.

3. Coated film according to claim 1, in which the vermiculite has a form factor equal to at least 5000.

4. Coated film according to claim 1, in which the amount of vermiculite is from 5 to 65 wt.% of the total weight of the polymer and crosslinking agent.

5. Coated film according to claim 1, in which the dispersant is an ecological sodium, zirconium carbonate and ammonium anionic polyethylene wax, sodium salt poliasparaginovaya acid, anionic Carnauba wax, or a mixture thereof.

6. Coated film according to claim 1, in which the crosslinking agent is ethandiol, cyclic condensate glyoxal, urea, carbonate, zirconium and ammonium or mixtures thereof; and the specified crosslinking agent is present in an amount of from 0.1 to 50 wt.% by weight of the specified polymer, capable of forming films.

7. Coated film according to claim 1, which additionally includes a sealing film in contact with the floor.

8. Coated film according to claim 7, in which the sealing film includes polyethylene or polypropylene.

9. Coated film according to claim 1, having components that are ut Eridani FDA or approved by the FDA for direct and/or indirect contact with food.

10. Composition to obtain a coating film, which includes:
(a) water;
(b) vermiculite, suspended in it;
(c) a polymer capable of forming a film;
(d) a dispersant for vermiculite in the polymer and the dispersant carries a negative charge; and
(e) a crosslinking agent.

11. The composition of claim 10 in which the polymer includes polyhydroxy polymer orlandomiami polymer.

12. The composition of claim 10 in which the polymer is a polyvinyl alcohol.

13. The composition according to claim 10, in which the vermiculite has a form factor equal to at least 5000.

14. The composition according to claim 10, in which the dispersant is an ecological sodium, zirconium carbonate and ammonium anionic polyethylene wax, sodium salt poliasparaginovaya acid, anionic Carnauba wax, or a mixture thereof.

15. The composition of claim 10 in which the amount of vermiculite, expressed as a mass percentage in relation to polyhydroxylated alcohol and a crosslinking agent is from 5 to 65%.

16. The composition according to claim 10, in which the crosslinking agent is ethandiol, cyclic condensate glyoxal, urea, carbonate, zirconium and ammonium or mixtures thereof; and the specified crosslinking agent is present in an amount of from 0.1 to 50 wt.% by weight of the specified polymer, capable of forming films.

17 Molded body with a floor, includes:
molded body; and
the coating containing:
(a) vermiculite;
(b) a polymer capable of forming a film;
(c) a dispersant for vermiculite in the polymer and the dispersant carries a negative charge; and
(d) a crosslinking agent.

18. Molded body with a coating 17, where the polymer includes polyhydroxy polymer or orlandomiami polymer.

19. Molded body with a coating 17, where polyhydroxy polymer is a polyvinyl alcohol.

20. A method of producing a coating on the carrier film, which includes:
mixing the aqueous suspension of vermiculite with a solution containing (a) a polymer comprising polyhydroxy polymer or orlandomiami polymer;
(b) a crosslinking agent for the formation of the second suspension, and (C) a dispersant for vermiculite in the polymer and the dispersant carries a negative charge, with the formation of the second suspension, and
the coating on the carrier film by using the second suspension
where the carrier film is a polyethylene terephthalate, nylon, biaxially oriented polypropylene, oriented polypropylene, polyethylene, polyvinyl chloride, polyhydroxyalkanoate, polylactic acid or paper.

21. The method according to claim 20, in which polyhydroxy polymer is polyvin Lowy alcohol.

22. The method according to claim 20, further comprising applying a sealing film on the surface of the covering film.

23. The method of stabilization of the suspension containing vermiculite, from the effects of shear, comprising combining a mixture containing:
(a) one or more crosslinking agents;
(b) a polymer capable of forming a film;
(c) water; and
(d) a dispersant for vermiculite, bearing a negative charge, with the specified suspension containing vermiculite.

24. The method according to item 23 wherein said crosslinking agent is ethandiol, cyclic condensate glyoxal, urea, carbonate, zirconium and ammonium or mixtures thereof; and the specified crosslinking agent is present in an amount of from 0.1 to 50 wt.% by weight of the specified polymer, capable of forming films.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: composition contains: (a) a film-forming polymer with reactive functional groups; (b) a curing a curing agent with functional groups which react with groups from (a) and (c) an adhesion promoter. The adhesion promoter is obtained from (i) boric acid or boron-containing compounds which are hydrolysed to boric acid, and (ii) an ester with two or more terminal hydroxyl groups. The adhesion promoter is present in an amount which is sufficient to obtain boron content of 0.001-5 wt %. The ester is obtained via condensation of polybasic carboxylic acids and polybasic alcohols, some of which are 1,3-polyol. The ratio of boric acid equivalents or equivalent thereof and hydroxyl is greater than 0.1:1, and the ratio of equivalents of 1,3-polyol and carboxylic acid is greater than 2:1. A multilayer composite is obtained from the heat-curable composition. The composite has a first polymer layer formed on a substrate and a second polymer layer formed on top of the first layer.

EFFECT: invention enables to obtain multilayer composite coatings with improved interlayer adhesion.

31 cl, 6 tbl, 40 ex

FIELD: chemistry.

SUBSTANCE: costing is obtained from a composition containing a film-forming resin and a plurality of particles dispersed in the resin. The average size of the particles ranges from 0.1 to 50 mcm. The particles have hardness which is sufficient to endow the coating with high resistance to dents and/or scratches compared to a coating in which such particles are not present. Also, the difference between the refraction index of the resin and the refraction coefficient of the particles ranges from 1 to 1.5. The invention also describes a method of preparing a powdered coating which includes particles dispersed in the resin and a coated substrate.

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19 cl, 9 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: substrate is nonwoven material and the method involves steps for applying a composition in form of an aqueous suspension onto at least one side of the substrate. The composition contains silane, an initiator and an inorganic compound and the initiator is an aqueous acid or base, and the inorganic compound contains at least one metal and/or semimetal. The composition is then dried first at room temperature and then at 200°C after 10 seconds. Further, at least one coating composition is applied onto at least one side of the substrate on which the composition was already applied during the previous step. The coating composition contains silane of general formula (Z1)Si(OR)3, where Z1 denotes R, OR or Gly (Gly=3- glycidyloxypropyl) and R denotes an alkyl having 1-18 carbon atoms and all R can be identical or different, oxide particles selected from oxides of Ti, Si, Zr, Al, Y, Sn, Zn, Ce or mixtures thereof, epoxy resins and an aqueous acid or base as the initiator. The coating composition is dried for 30 minutes at 120°C.

EFFECT: very high flexibility of coated substrates without destroying or cracking the applied coating.

15 cl, 2 ex

FIELD: physics.

SUBSTANCE: protective device comprises assemblage of n>1000 magnetically smoothed flakes that make image. Said flakes rest on substrate in first pattern to form ring or curve. Note here that said flakes are inclined at first angle to substrate while planes that extend flakes surfaces intersect to make image look like 3D object. Note here that bright or dark spot displaces over image on inclining protective device.

EFFECT: optically varying images using magnetically smoother flakes in presence of magnetic fields.

18 cl, 74 dwg

FIELD: chemistry.

SUBSTANCE: disclosed is a luminescent composition for marking roads, which contains an aluminate type luminescent (phosphorescing) pigment and polymer binder selected from a group comprising: epoxy, urethane, acrylate, alkyd and composite polymer resins. The luminescent pigment is pre-treated in order to protect it from moisture using solutions of reagents selected from a group comprising mono-substituted phosphates, H2SO4, H3PO4, a mixture of tri- or disubstituted phosphates and at least one acid: HCl, H3SO4 or HNO3. Disclosed also is a luminescent paint for making roads, which contains an aluminate type luminescent (phosphorescing) pigment or a luminescent composition and a water or non-water based road paint or enamel. In another version, the luminescent paint is obtained by mixing a pigment which first protected from hydrolysis, polymer binder and a water or non-water based road paint or enamel: - luminescent pigment 2-60; polymer binder 4-20; road paint or enamel 94-20.

EFFECT: invention provides reliable protection of the pigment from hydrolysis, enables regulation of the amount of polymer binder which affects colour characteristics and technological aspects, as well as the size of particles of the luminescent pigment, which is important when mixing the pigment with components of compositions or paints.

4 cl, 8 tbl, 58 ex

FIELD: chemistry.

SUBSTANCE: modified carbonaceous material with organic groups is obtained by reacting the starting carbonaceous material in form of soot, graphite powder, graphite fibre, carbon fibre, carbon fibrils, carbon nanotubes, carbon fabric, glass-like carbon products, activated carbon or fullerenes with organic compounds. Reaction of the carbonaceous material with organic compounds is carried out without use or formation of diazonium salts during the reaction. The obtained carbonaceous materials may be used in rubber systems, in producing plastic, printing ink, ink, bitumen, concrete or other building materials, or as reducing agents in metallurgy.

EFFECT: invention improves viscosity and surface tension properties of soot dispersions, reduces formation of by-products.

10 cl, 13 ex

FIELD: chemistry.

SUBSTANCE: invention describes novel hydroxyphenyltriazine derivatives of general formula where R1 denotes H, C1-C12alkyl or OR3; R3 denotes H, C1-C18alkyl or C1-C12alkyl, possibly substituted with OH, C1-C18alkoxy group, COOR4 and/or -O-CO-R5; R4 denotes C1-C18alkyl; R5 denotes H; C1-C18alkyl; or C7-C11phenylalkyl; radicals E1' and E2', which are an aromatic carbocyclic condensed ring system, are described in the claim. The novel compounds are UV radiation absorbers and have absorption spectrum shifted towards the long-wave range with considerable absorption at up to 420 nm.

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17 cl, 22 ex, 3 tbl

FIELD: chemistry.

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19 cl, 7 ex

FIELD: chemistry.

SUBSTANCE: method involves steps for grinding cellulose ether and a cationic surfactant in a mill and, optionally, drying the mixture. Cellulose ether contains water in amount of 20-90% of total weight of the cellulose ether and water. The cationic surfactant is present in amount of 0.001-2% of the total weight of the mixture. The cationic surfactant is a quaternary ammonium compound. Drying is carried out while grinding, before the grinding step or after the grinding step. The method enables to obtain a product with low dust explosion hazard.

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7 cl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention describes novel benzotriazole UV ray absorbers of general formula (I): (values of radicals are given in the description), having an absorption spectrum which is shifted towards the long-wave region with considerable optical density to 410-420 nm, as well as a UV radiation stable composition which contains novel UV ray absorbers, and use of the novel compounds as UV radiation stabilisers when applying coating on automobiles.

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9 cl, 6 tbl, 8 ex

FIELD: chemistry.

SUBSTANCE: lacquer coating composition with viscosity of not more than 140 Krebs units (KU) is applied onto a surface and solidified. The lacquer coating composition contains 35-80% (by volume of dry paint substances) of a binder system with ratio of hydrogen equivalents to expoxy equivalents ranging from 20:100 to 120:100, 0.5-30% (by volume of dry paint substances) of one or more (types) of fibre. The fibre has average length of not more than 250 mcm.

EFFECT: high resistance to cracking of the coating.

27 cl, 2 dwg, 11 tbl, 11 ex

FIELD: chemistry.

SUBSTANCE: described is an aqueous dispersion composition which contains an antifoaming agent, melamine, dispersant, water, aqueous dispersion of a copolymer of vinyl acetate and/or acrylate, ammonium polyphosphate, pentaerythritol, titanium dioxide, dolomite or calcite, zinc borate or zinc phosphate, or boron-modified zinc phosphate, wetting agent, dispersant, thickener, foaming agent, biocide and micronised schungite at a certain ratio of components.

EFFECT: high degree of fire resistance of steel and reinforced concrete materials, structures and buildings for industrial and civil purposes, used inside or outside all types of buildings.

FIELD: chemistry.

SUBSTANCE: substrate is nonwoven material and the method involves steps for applying a composition in form of an aqueous suspension onto at least one side of the substrate. The composition contains silane, an initiator and an inorganic compound and the initiator is an aqueous acid or base, and the inorganic compound contains at least one metal and/or semimetal. The composition is then dried first at room temperature and then at 200°C after 10 seconds. Further, at least one coating composition is applied onto at least one side of the substrate on which the composition was already applied during the previous step. The coating composition contains silane of general formula (Z1)Si(OR)3, where Z1 denotes R, OR or Gly (Gly=3- glycidyloxypropyl) and R denotes an alkyl having 1-18 carbon atoms and all R can be identical or different, oxide particles selected from oxides of Ti, Si, Zr, Al, Y, Sn, Zn, Ce or mixtures thereof, epoxy resins and an aqueous acid or base as the initiator. The coating composition is dried for 30 minutes at 120°C.

EFFECT: very high flexibility of coated substrates without destroying or cracking the applied coating.

15 cl, 2 ex

Dispersion paint // 2425077

FIELD: chemistry.

SUBSTANCE: dispersion paint contains the following in wt %: 2-40 dispersed polymers, 0.1-20 filler, 0.5-20 powdered synthetic material, 0.1-15 wax, 0.5-15 fibre, water.

EFFECT: invention enables to obtain intense and rich colour shades of the paint, reduces the writing effect and improves surface properties or surface sensitivity.

19 cl, 2 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: base coat contains an acrylic dispersion, anticorrosion pigments and filler materials, a dispersing agent, a thickener and water. In order to improve anticorrosion properties of the coating, the base coat contains a water-soluble corrosion inhibitor mixture of potassium octadecanoate, tripotassium phosphate, 2,2',2"-nitrilotriethanol and a surfactant - technical mixture of polyethyleneglycol ethers of monoalkylphenols, which improves wettability and adhesion of the paint coat to metal surfaces.

EFFECT: high environmental safety during painting and good anticorrosion properties of the coating when used in aggressive atmospheric conditions.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a polymer composition which forms a "liquid in solid substance" polymer system at room temperature and having the prolonged release effect of a liquid organic compound, and articles made from said composition. The composition contains 0.1-50 pts. wt thermoplastic polymer (A) and 0.1-20 pts. wt block-copolymer (B). Block-copolymer (B) contains a block (b1) having high compatibility with a thermoplastic polymer (A), but low compatibility with a liquid compound (C), and a block (b2) having high compatibility with the liquid compound (C), but low compatibility with thermoplastic polymer (A). Block-copolymer (B) acts like a surfactant by forming a boundary surface between polymer (A) of the matrix and liquid compound (C).

EFFECT: composition enables to hold a liquid compound dispersed therein with high concentration.

28 cl, 5 dwg, 15 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a paint composition containing a hydrophobic latex polymer component for endowing resistance to softening by water and staining of the paint film obtained from the latex paint produced from the paint composition, as well as paint, a paint film and production method thereof.

EFFECT: invention enables to obtain a latex paint film and a latex paint, which are not sensitive to water, staining, deterioration of lustre and change in rheological properties.

11 cl, 7 ex

FIELD: construction.

SUBSTANCE: composition to finish walls of buildings contains liquid glass with density of 1.14-1.15, dispersion of styrene-acrylic copolymer of Lacroten E-21 type, a water dispersion of thinly linked acryl copolymer Lacroten E-41 as a thickener, white spirit, ammonia, sodium tripolyphosphate as a disperser, colourful sand as a light loam for filling, talc and diatomite.

EFFECT: increased viability of the paint composition, higher textural expressiveness, faster drying time.

2 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: invention relates to sol for applying sol-gel coating onto a surface. The sol contains at least one organometallic compound of zirconium, aluminium or titanium, at least one organosilane compound, at least one compound selected from acids, bases, glycols and ethoxy ethanol as a catalyst. The sol also contains demineralised or distilled water. The total amount of at least one organometallic compound of zirconium, aluminium or titanium and at least one organosilane compound is greater than 50%. The sol also contains less than 5% harmless organic solvent such as non-toxic aliphatic alcohols. The sol also contains at least one surfactant and organic binder. The invention also relates to a set comprising a first container which contains a first portion in form of liquid which contains at least one organometallic compound of zirconium, aluminium or titanium, at least one compound selected from acids, bases, glycols and ethoxy ethanol, and a second container which contains a second portion in form of a liquid which contains an organosilane compound. The sol-gel layer is obtained by depositing the said sol onto a substrate. The layer is dried to obtain a sol-gel layer on the substrate. The sol-gel layer is used to endow the surface of the substrate with corrosion resistance. The surface of the substrate can have one or more sol-gel layers.

EFFECT: method enables obtaining the desired coating thickness without deterioration of anti-corrosive properties, as well as obtaining a coating with uniform thickness without overlapping.

65 cl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to an aqueous composition for coating outer, inner, front and roof surfaces, having bactericidal action. The water paint composition contains elementary silver and at least one additional component selected from a group comprising a silver salt, chitosan and/or chitosan derivatives. The water paint composition contains at least one organic or inorganic binder, and can additionally contain ZnO nanoparticles with average size of 500 nm. The invention also relates to use of silver nanoparticles combined with at least one additional component selected from a silver salt, chitosan, chitosan derivatives and optionally ZnO nanoparticles as a bactericidal agent in aqueous compositions for painting inner, front, roof and outer surfaces. The method of applying the coating on inner, outer, front and roof surfaces of a building involves depositing the water paint composition.

EFFECT: obtaining a composition having highly efficient bactericidal action and does not have allergenic and toxic effect on the human body.

17 cl, 2 dwg, 1 ex

FIELD: chemistry.

SUBSTANCE: invention relates to production of packaging materials for food products and beverages, particularly barrier films, laminated packaging materials and packaging containers. The barrier film has a base polymer film and a barrier layer containing an inorganic oxide deposited on the base film via gas-phase deposition. The layer of inorganic oxide is additionally coated with a healing layer of cross-linked organopolysiloxane which is covalently bonded with the inorganic layer. The laminated packaging material has a barrier film. The packaging container is made from said barrier film.

EFFECT: packaging material has good barrier properties with respect to oxygen and water vapour, improved strength and softness.

23 cl, 9 dwg, 5 ex

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