Aqueous binder composition

FIELD: chemistry.

SUBSTANCE: invention relates to an aqueous binder composition comprising: (1) a water-soluble binder component obtainable by reacting at least one alkanolamine with at least one polycarboxylic acid or anhydride and, optionally, treating the reaction product with a base; (2) the product of the soy protein; and optionally one or more of the following components of the binder; (3) sugar as the component; (4) urea.

EFFECT: binder composition is particularly suitable as a binder for mineral fibers, or as an adhesive for a particleboard and other composites.

14 cl

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: present invention relates to formaldehyde-free coating compositions. The coatings are used to endow fibrous panels and acoustic panels, such as ceiling tiles, with sag resistance. The composition includes a polyacid copolymer having at least two carboxyl groups, anhydride groups or salts thereof, a compound having a hydroxyl group, a phosphorus-containing catalyst and calcium aluminosilicate powder.

EFFECT: sag resistance, rigidity and strength of the formaldehyde-free coating.

8 cl, 1 dwg, 5 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to binding compositions for insulation articles based on mineral wool. Disclosed is a binding composition based on mineral felt or glass fibre, which includes at least one saccharide, at least one organic polycarboxylic acid containing 2-4 carboxylic functional groups and having molecular weight less than or equal to 1000, and at least one polyorganosiloxane containing at least one functional group capable of reacting with at least one of the components of the binding composition. The invention also discloses a sound- and/or heat-insulation article and coating made of mineral fibre, glued using the disclosed composition and a method of producing a sound- and/or heat-insulation article.

EFFECT: disclosed binding composition does not contain formaldehyde and endows insulation articles with low water absorption.

25 cl, 2 tbl, 8 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a fire-resistant thermo- and/or sound-insulating product. The fire-resistant thermo- and/or sound-insulating product is based on mineral wool, in particular an asbestos fibre or glasswool and an organic binding agent. The product contains a salt of metal and polycarboxylic acid as a fire retardant.

EFFECT: technical result of the invention consists in a uniform distribution of the fire retardant in the product.

19 cl, 8 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to thermoreactive polymers. Described is composite, which includes: formaldehyde-free binding substance, which includes polyvinyl alcohol and one or more linking agents for hydroxyl polymer, selected from sodium trimethaphosphate, sodium trimethaphosphate/sodium tripolyphosphate and phosphorus oxychloride, polyamide/epichlorohydrin linking agents, cyclic amide condensates, and their combinations, in which polyvinyl alcohol and one or more linking agents for hydroxyl polymer are free of aldehydes; and substrate of mineral wool, processed with water solution of binding substance. Method of obtaining claimed composite is described.

EFFECT: reducing of toxicity.

12 cl, 2 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a water-soluble resin composition, a method of producing such a resin composition, use of the resin composition as binding material for non-woven fibre material, particularly insulation materials, and a method of producing such insulation material. The water-soluble resin composition contains a resin which is a product of reaction of aldehyde, preferably selected from a group including formaldehyde and (lower alkyl (C1-C4)) mono- or di-aldehydes or formaldehyde precursors, which can form formaldehyde directly in the resin composition, and a hydroxyl-aromatic compound selected from a group including substituted and unsubstituted mono- or polycyclic phenols, preferably from phenol, said composition further containing: an amino compound containing 2-6 amino groups, which is selected from a group comprising urea, dicyandiamide and melamine, and where the amino compound can also be a mixture of two or more different amino compounds; and a sugar alcohol. The resin has initial molar ratio of aldehyde to the hydroxyl-aromatic compound from 2.3 to 5.5; the ratio of the resin to the amino compound plus the sugar alcohol ranges from 45:55 to 70:30 pts.wt; the ratio of the amino compound to the resin lies between 20:80 and 50:50 pts.wt; and the ratio of the sugar alcohol to the resin plus the amino compound lies between 5:95 and 30:70 pts.wt. The sugar alcohol has a boiling point higher than the setting point of the resin.

EFFECT: obtaining a resin composition having well preserved water-solubility and without ammonia, reduced phenol and formaldehyde emissions during hardening and preservation of mechanical properties of the hardened resin, particularly wet strength.

16 cl, 2 tbl, 6 ex

FIELD: textile industry.

SUBSTANCE: disclosed is a water-base resin binder for use in inorganic fibre material, where the resin binder is obtained by reacting at least the following components in any order: (a) protein-like material which is a protein hydrolysate which is considerably soluble in water at 20°C and has viscosity of less than 50 mPa∙s for 25 wt % aqueous solution, (b) an aromatic hydroxyl compound and (c) aldehyde, and where the water-base resin binder has viscosity of less than 100 mPa∙s when measured in concentration of 50 wt % at 20°C.

EFFECT: during solidification, the obtained resin has lower release of phenols and the release of formaldehyde and ammonia is considerably lower compared to traditional resins.

15 cl, 8 ex, 13 tbl

FIELD: chemistry.

SUBSTANCE: invention refers to the composition of water binding medium for products made of mineral fiber with increased aging resistance. Composition contains water-soluble component produced by interaction of at least one alkanolamyn with at least one carbonic acid anhydride and urea in amount 1-25% w/w calculated as hard components of composition. The ratio of components is such that the ratio of equivalents of aminogroups plus hydroxyl-groups (NH+OH) excluding urea to equivalents of carboxyl groups (COOH) in the component is in the range of about 0.6-1.5. Ratio of total amount of equivalents of aminogroups plus hydroxyl-groups (NH+OH) including urea to the equivalents of carboxyl groups (COOH) in the binding medium is between the limits x(min) and y(max) represented as

The ready water-soluble component is not mandatory treated with the alkali. The composition is used for production of glued item by bringing mineral fibers or product of mineral fibers in contact with composition of water binding medium and its subsequent hardening at temperature 225-300°C.

EFFECT: production of compositions for binding of mineral fibers with excellent hardening and durability characteristics, good water solubility and dilution resistance.

13 cl, 3 tbl, 1 dwg, 6 ex

FIELD: chemistry.

SUBSTANCE: invention refers to the composition of water binding medium for products made of mineral fiber with increased aging resistance. Composition contains water-soluble component. The component is produced by interaction of glycerin and at least one alkanolamyn with at least one carbonic acid anhydride. The ratio of components is such that the ratio of equivalents of aminogroups plus hydroxyl-groups (NH+OH) to equivalents of carboxyl groups (COOH) in the component is in the range of about 0.4-2.0. The amount of glycerin used is such that the ratio of equivalents of glycerin OH groups to total amount of equivalents of aminogroups plus hydroxyl-groups (NH+OH) is 0.1-0.9. The ready water-soluble component is not mandatory treated with the alkali. The composition is used for production of glued item by bringing mineral fibers or product of mineral fibers in contact with composition of water binding medium and its subsequent hardening at temperature 225-300°C.

EFFECT: production of mineral fibers with excellent hardening and durability characteristics, good water solubility and dilution resistance.

14 cl, 1 tbl, 8 ex

FIELD: textile; paper.

SUBSTANCE: method to manufacture paper-resin film includes preparation of an impregnation solution by dissolving the impregnation phenol-formaldehyde resin with water to the required concentration and viscosity, addition of a soaking additive, a separating-antiadhesive additive, anti-blocking additive to prevent sticking of films. The impregnation composition contains carbonate or ammonia bicarbonate, or their mixtures - ammonium bicarbonates, in amount of 0.5-4% to mass of phenol resin.

EFFECT: improved physical and mechanical characteristics of coating based on a paper and resin film, reduced time of drying of impregnated paper base and duration of facing of veneer and other board materials.

4 tbl

FIELD: chemistry.

SUBSTANCE: non-formaldehyde-containing curable aqueous composition contains polyvinyl alcohol combined with starch or modified starch or sugar, a multi-functional cross-linking agent and, optionally, a catalyst. The cross-linking agent is non-polymeric polyaldehyde, non-polymeric polyacid, salt thereof or anhydride. Nonwoven articles are obtained by bringing the composition into contact with fibrous components. Further, the mixture is cured to obtain a hard thermoset polymer.

EFFECT: composition ensures excellent strength and water resistance of the cured nonwoven article.

22 cl, 4 tbl, 15 ex

FIELD: process engineering.

SUBSTANCE: invention relates to bulky nonwoven material used for cleaning and to its fabrication. Nonwoven bulky material (10) comprises first side (11), second side (12) opposite the latter, multiple macroscopic recessed ridges (21) and ledge (30) on at least first side (11). First recessed ridge (21) extends in first direction with reset interval. Ledge (30) is arranged between first recessed abutting ridges (21). Ledge (30) extends from second side (12) to first side (11) of bulky material (10).

EFFECT: material is suitable for efficient catching of coarse dust particles.

12 cl, 12 dwg, 1 tbl

FIELD: textiles, paper.

SUBSTANCE: in a nonwoven fabric a plurality of small fibrous fragments, having a deeper colour than the colour of the basic texture of the nonwoven fabric, is distributed and placed in a scattered state over the whole area of the nonwoven fabric. In addition, the value difference (T3) of thicknesses is 1 mm or less when determining according to the formula T3=T1-T2, where T1 is the thickness of the nonwoven fabric (10) in determining under the pressure of 7.64 kPa in the area where there is a fine fibrous fragment, while T2 is the thickness of the nonwoven fabric determined under the pressure of 7.64 kPa in the area where the fine fibrous fragment is absent.

EFFECT: improvement of the efficiency of manufacturing the nonwoven fabric.

23 cl, 4 dwg, 2 tbl

FIELD: process engineering.

SUBSTANCE: set of inventions relates to porous membrane, separator for electrochemical device including said porous membrane and said separator and to method of its production. porous membrane contains cellulose fibres wherein the latter are produced from the mix of over 50 wt % of initial material first cellulose fibres with surface area defined by staining with "congo red" dye and making 250 m2/g or more and 500 m2/g or less; and less than 50 wt % of second cellulose fibres with surface area defined by "congo red" staining and making 150 m2/g or more and less than 250 m2/g.

EFFECT: better properties, acceptable costs.

28 cl, 1 tbl, 8 ex

Duplicating gasket // 2501894

FIELD: textiles, paper.

SUBSTANCE: duplicating gasket is described, which is applicable, in particular, as a gasket for the front duplicating in the textile industry, with a carrier layer based on loosely coupled and structured with the waterjet method combing or nonwoven fabric. At that the carrier layer is bound only on the selected sites using a binder and is provided at least from one side with an adhesive mass. The carrier layer is structured so that it has a raster perforated structure.

EFFECT: high volume and reversible elasticity, extremely high elastic recoverability.

11 cl, 7 dwg

FIELD: textiles, paper.

SUBSTANCE: method for producing absorbent cotton includes mechanical and optional chemical processing of cotton and/or bast fibers and/or man-made natural and/or synthetic artificial fibers containing cotton and bast of step of bleaching, souring, washing, pressing, loosening, drying and carding, for natural and man-made synthetic man-made fibers of steps of hoeing and carding, followed by hackling and the formation of a mixture of fibers with manufacturing of beat up mixed fiber and the production of cotton canvas from it. Fibers are isolated from a mixture of cloth or rags and textile waste by pulping raw material. Hygroscopic cotton fiber comprises a mixture based on fibers selected from the group of cotton, bast, natural, artificial, synthetic, artificial fabric.

EFFECT: increasing the speed of wetting, absorption capacity, capillarity of cotton, recycling of various rags and textile waste and eliminating dependence from the deficit on raw material for the production of cotton.

11 cl, 1 tbl

FIELD: textiles, paper.

SUBSTANCE: absorbent cotton consists of bast fibers or fiber mixture based on cotton and/or bast, and optionally synthetic fibers. As the cotton fibers, at least cotton fibers itself and/or cotton blowing are used; as bast fibers, at least flax fibers and/or flax tow, and/or hemp fibers, and/or hemp tow, and/or jute fibers, and/or jute tow, and/or kenaf fiber, and/or kenaf tow are used; as the synthetic fibers, the viscose rayon fibers and/or polyester fibers are used. The method of producing absorbent cotton comprises mechanical and chemical treatment of cotton and/or bast fibers containing stages of bleaching, souring, washing, wringing, loosening, drying, rippling and forming the mixture of fibers to prepare the scutched mixed fibers and production of cotton canvas of it. The organic synthetic fibers for the textile industry are optionally added to a mixture of cotton and/or bast fibers after chemical treatment.

EFFECT: increase in the specific viscosity, elasticity of cotton, eliminating dependence on a deficit of any raw material used to produce cotton, and expanding the range of ready-made products of it.

4 cl, 9 tbl, 7 ex

FIELD: textile, paper.

SUBSTANCE: mineral fibres are produced from a mineral melt with the help of a fibre-forming apparatus, a binder is added to shaped mineral fibres, and are blown from the fibre-forming apparatus to a collecting surface, on which mineral fibres are assembled as a primary canvass. Optionally the primary canvass is interwoven into the secondary canvass. The primary canvass from the collected mineral fibre or the secondary canvass from the mineral fibre is processed at the working level of the first processing plant, and the canvass is transported on a conveyor to the working level of the second processing plant. Working levels of the first and/or second processing plant are adjusted substantially in one and the same plane in order to provide for displacement at one level of the canvass from the mineral fibre between processing plants.

EFFECT: reduced crippling and warping of a fibrous canvass between various processing plants.

9 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: profiled sheet made from fibers comprises multiple ledges, jointing sections and recesses made on its surface. Note here that said jointing sections make boundaries to joint said ledges together. Note also that said recesses are located between said ledges aside from jointing sections, i.e. six recesses around each ledge. Invention relates also to absorbing article incorporating said sheet.

EFFECT: higher efficiency of absorbing fluid.

17 cl, 19 dwg, 3 tbl

FIELD: chemistry.

SUBSTANCE: disclosed is an insulation material made with possibility of increasing volume thereof, containing clusters with a random shape, made with possibility of increasing volume thereof, wherein said clusters contain natural fibre or material. The clusters also contain synthetic fibre or material.

EFFECT: increase in comfort during use and reduced harmful effect owing to low content of synthetic materials.

10 cl

FIELD: textile, paper.

SUBSTANCE: system (90) for fastening a nonwoven fabric (10) includes a canvas (12) formed from a variety of extruded threads (14). At least some of the threads (14) in the nonwoven fabric (10) include self-adhesive material. Foamed layer (91) includes a surface (92) having a variety of loosely arranged elements (93). The elements (93) are adapted for engagement with at least a part of the set of threads (14). And at least some of the loosely arranged elements (93) include a surface modifier. The surface modifier is a self-adhesive material, which is similar to self-adhesive material in the nonwoven fabric (10). The threads (14) of non-woven fabric (10) are formed of a multicomponent or bicomponent material. At least one of the materials in multicomponent or bicomponent materials is a self-adhesive material. In one version the absorbent article (95) contains a system of fastening (90) for fixation of the absorbent article (95) on the waistline of the user. In another version, the absorbent article (95) contains a system of fastening (90) for fixation of the absorbent article on the waistline of the user, where the surface modifier comprises a binder or polymer wax. The strength of connection between the non-woven fabric (10) and a part of the foamed layer (91) includes a surface modifier, with a strength of 1.5 times greater than the strength bond between the nonwoven fabric (10) and a part of the foamed layer (91), which does not include a surface modifier.

EFFECT: improved properties of mechanical fasteners and ease of production of fastening system.

18 cl, 18 dwg, 6 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: invention relates to an adhesive composition as well as to a composite and a method of obtaining the composite, which includes a substrate and the adhesive composition. The adhesive composition includes a protein component, a polymer component with azetidine functional groups and a viscosity-modifying component. The protein is represented by the soya protein. The viscosity-modifying component is represented by a sulfite reducing agent, thiol or their combination.

EFFECT: invention provides high content of dry substances, low viscosity of adhesive compositions.

10 cl, 15 tbl, 66 ex

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