Fire-resistant paint

FIELD: chemistry.

SUBSTANCE: spray paint contains an aqueous suspension of finely powdered particles of expanded vermiculite, where the particles of vermiculite are a mixture of chemically exfoliated vermiculite in an amount of, preferably, approximately 75 to 99 wt %, and thermally exfoliated vermiculite in an amount of, preferably, approximately 1 to 25 wt %. The viscosity of the spray paint measured on a Brookfield viscometer (spindle No. 6, 20 rpm) is preferably in the range of 5,500 to 10,000 cPs.

EFFECT: invention provides a refractory and/or fire-resistant paint with good adhesion and non-stickiness.

26 cl, 1 dwg, 2 ex

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: energy-preserving anticorrosion coating with reduced fire hazard includes filling agent - closed noncombustible glass hollow microspheres 3M with size from 30 to 110 mcm, representing free-flowing powders with bulk density 0.10-0.15 g/cm3, titanium dioxide, additionally contains latex of grade SKD-1S, acryl dispersions "Akremos-101" and "Akremos-402", fluralit (nano-polytetrafluoroethylene), flame retardants - decabromodiphenyloxide and aluminium hydroxide, fungicide - polyhexamethylguanidine phosphate, foam extinguisher BYK-037, with the following component ratio, wt.p.: latex of grade SKD-1S- 4.00-27.92, acryl dispersion "Akremos-101" - 32.00-55.20, acryl dispersion "Akremos-402" - 0.77-0.80, glass hollow microspheres 3M - 14.54-35.86, Fluralit (nano-polytetrafluoroethylene) - 1.00-6.20, decabromodiphenyloxide - 4.80-7.00, aluminium hydroxide - 5.10-5.10, titanium dioxide - 0.70-1.20, polyhexamethylguanidine phosphate - 0.22-0.24, foam extinguisher BYK-037 - 0.32-0.35.

EFFECT: method is characterised by good manufacturability, coating is characterized by low heat conductivity, good strength, anticorrosion, fungicidal and fire-protective properties.

2 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing a heat-insulating composition, which includes feeding into a liquid glass composition binder, filler in the form of glass microspheres, carbon microfibers with fibrils and dyes. The method is characterised by that it includes mixing surfactant liquid - oleic acid taken in amount of 13.5-15.2% of the volume of the composition, with magnetite nanoparticles with size of 10-20 nm, coated with a surfactant - oleic acid in amount of 8-10% of the volume of the composition, applying a rotating electromagnetic field with field strength of 700-800 kA/m, when the mixture of the surfactant - oleic acid and magnetite nanoparticles begins to rotate, adding liquid glass in amount of 10-15% of the volume of the composition, adding glass microspheres in amount of 20-25% of the volume of the composition and performing 5000-6000 rpm of a rotating magnetic field (for 3-4 minutes at the rotation frequency of the magnetic field of 1500 rpm), adding to the rotating mixture of surfactant - oleic acid, magnetite nanoparticles and liquid glass, glass microspheres in amount of 30-35% of the volume of the composition and performing not less than 10000 rpm of a rotating electromagnetic field (not less than 7 minutes at rotation frequency of the magnetic field of 1500 rpm), adding to the mixture of surfactant - oleic acid carbon microfibers with fibrils in amount of 5-7% of the volume of the composition, dyes in amount of 2-3% of the volume of the composition and adding liquid glass to a given volume of the composition and applying a rotating electromagnetic field with not less than 15000 rpm (not less than 10 minutes at rotation frequency of the magnetic field of 1500 rpm).

EFFECT: use of the present invention improves homogeneity of distribution of glass microspheres and different filler materials on the entire volume of the composition and prevents mutual contact thereof.

1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy, particularly, to production of porous forged pieces and ingots with inferior fusion point and fusible metals and alloys used for production of parts in machine building and other industrial branches. Foam polystyrene with reinforcing shell consists of surface film with internal cells filled with isopentane and air and coated with outer functional shell of one, or two or three plies. Every said ply comprises binders of the following composition, in wt %: liquid glass - 50, water - 49, surfactant - 1 and additive of disperse metal powder selected from aluminium, magnesium, zinc, lead powders or refractory material powder selected from alumina, magnesite, silica with particle size not over 100 mcm. Invention describes also the method of production of said pellets. It consists in forming of the coating as laminar shell including one, or two, or three plies by application on said pellets of liquid glass binder with addition of surfactant by pulverisation and disperse metal powder or refractory material powder by sprinkling with agitation at screen vibrating pan. Then, they are dried in air flow heated to 70C for 10 minutes and cooled for bonding of powder particles to get reinforcing shell.

EFFECT: possibility of using these pellets as pore-forming agents in production of porous cast blanks by vacuum impregnation from metals and alloys with low fusion point and fusible metals and alloys.

2 cl, 1 tbl, 12 dwg

FIELD: chemistry.

SUBSTANCE: composition includes, wt. p.: epoxy diane resin 100.0, hardener - polyethyleneamine 15.0, filler - cross-linked polyacrylamide POLYSWELL in form of granules, preliminarily swollen in water, in weight ratio 1:10 5.0-20.0.

EFFECT: increased fire resistance of composites based on epoxy diane resin.

2 tbl

FIELD: chemistry.

SUBSTANCE: method includes step-by-step hardening of liquid phenolformaldehyde resin of resol type in heating in the interval of temperatures from 80C to 200C with successive realisation of polycondensation and polymer cross-linking reactions, operations of crushing, milling, drying and sieving of obtained product to obtain particles with size not more than 0.18 mm. In the process of hardening in order to create optimal conditions for polycondensation reaction, accompanied by product foaming, after temperature 120C is reached, process of heating is accelerated to rate 1C/min, and process of polymer cross-linking is realised at temperature higher than 150C under conditions of reduction of heating rate to 0.5-0.2C/min.

EFFECT: obtaining product with sufficient level of thermal stability, ability to coke-formation, providing thermo-erosion stability of armour jacket under conditions of high temperatures and intensive erosion carryover under action of gas dynamic flow of fuel combustion products, absence of porosity in formation of armour jacket components.

4 cl, 3 dwg, 4 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to polymer construction materials of a reduced fire hazard, which do not support burning, applied for sealing and waterproofing of walls, roofing, foundation, basements, swimming-pools, and reservoirs for storing fuel at petrol stations. A waterproofing composition includes a rubber dispersion - latex SKD-1C, additionally contains (co)polymers "Akremos 101" and "Akremos 106" and functional additives - decabromodiphenyloxide, aluminium hydroxide, hexabromocyclododecane, butyldiglycol acetate, pigment titanium dioxide, zinc orthophosphate.

EFFECT: composition possesses fire-resistance, anticorrosion properties, improved physical-mechanical and adhesive properties.

2 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: composition includes hollow aluminosilicate or corundum microspheres, binder in the form of aluminophosphate with free aluminium oxide content of less than 4 wt %, and water with the following ratio of components, wt %: aluminosilicate or corundum microspheres - 45-65, aluminophosphate - 35-55, water - the balance. The microspheres used have internal diameter of 6-250 mcm and wall thickness of 1-10 mcm. The invention also relates to a heat-protective coating which consists of at least two layers on a base, the first of which is the undercoat, and the second layer is made of said composition, wherein the composition for the first layer further includes C45-C60 fullerenes in amount of 0.001-0.002 wt %.

EFFECT: obtaining a durable coating with high operating temperature.

9 cl, 3 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: invention relates to compositions for obtaining thermal barrier coatings, which can be applied for an external thermal protection of elements of spacecraft constructions, as well as in construction and aircraft. A composition of the thermal barrier coatings contains dry re-dispersible latex based on copolymers of vinylacetate and ethylene or vinylacetate and vinylversalate as an organic binding agent and a group of filling agents, including vermiculite with the bulk density 95-110 kg/m3 and an average size of particles 1 mm, perlite with the bulk density not more than 100 kg/m3, kaolin, glass microspheres with dimensions 15-200 mcm and the bulk density 240-320 kg/m3 and a fibrous material.

EFFECT: invention provides thermal protection of metal and non-metal constructions against high-temperature rapid aerodynamic heating.

4 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: fire-protecting composition for covering glass-reinforced plastics includes perchlorovinyl resin, as organic solvent, mixture of butylacetate and acetone in ratio 1:1, as expansion agent, phosphorus-boron-nitrogen-containing oligomer, preliminarily obtained as a result of interaction of methylphosphite borate, epoxy resin ED-20 and aniline in weight ratio 2.5:1:2.5.

EFFECT: invention makes it possible to provide high fire protection for glass-reinforced plastic coatings.

3 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to intumescent compositions which are curable at ambient temperature, use thereof to protect structures, and substrates coated with said composition. The intumescent composition contains A) binder, containing (i) a resin which contains a polysiloxane chain or a precursor of said chain, and (ii) optionally an organic resin, and (iii) at least one type of a functional group selected from a group comprising epoxy resin, an amino group, a mercaptan group, a carboxylic acid group, an acrylonitrile group, an isocyanate group, an alkoxysilyl group and an anhydride group, wherein said functional groups are present either as side and/or terminal groups in said resin, which includes a polysiloxane chain or a precursor of said chain, and/or an organic resin, under the condition that if the binder contains alkoxysilyl groups only as one type of said functional groups, then said alkoxysilyl groups are present in the organic resin, B) a compound capable of reacting with or which is a catalyst in the reaction between functional groups and C) a foaming agent and a phosphorus-containing substance as a carbon-forming secondary additive.

EFFECT: obtaining intumescent compositions.

12 cl, 5 tbl

FIELD: chemistry.

SUBSTANCE: method comprises first adding blue or purple ink in amount of 0.15-0.30% (by weight) to liquid sodium glass, followed sodium chloride 16-33%, mixing for 1-2 minutes, holding for 10-12 minutes and mixing for 1-7 minutes before depositing the mixture on an article. A second layer is deposited using liquid sodium glass with glycerine with concentration of 45-55%. If water resistance of the finish coating is insufficient for operating conditions, a protective coating of acrylic lacquer AK-199 is deposited on the surface of the double-layer finish coating based on liquid glass.

EFFECT: method of depositing decorative finish coatings enables deposition of said coatings on different materials: gypsum, terracotta, aluminium, copper, steel, linen cord, glass, immortelle and wood, including on rods used in horticulture.

2 dwg, 2 ex

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy, particularly, to production of porous forged pieces and ingots with inferior fusion point and fusible metals and alloys used for production of parts in machine building and other industrial branches. Foam polystyrene with reinforcing shell consists of surface film with internal cells filled with isopentane and air and coated with outer functional shell of one, or two or three plies. Every said ply comprises binders of the following composition, in wt %: liquid glass - 50, water - 49, surfactant - 1 and additive of disperse metal powder selected from aluminium, magnesium, zinc, lead powders or refractory material powder selected from alumina, magnesite, silica with particle size not over 100 mcm. Invention describes also the method of production of said pellets. It consists in forming of the coating as laminar shell including one, or two, or three plies by application on said pellets of liquid glass binder with addition of surfactant by pulverisation and disperse metal powder or refractory material powder by sprinkling with agitation at screen vibrating pan. Then, they are dried in air flow heated to 70C for 10 minutes and cooled for bonding of powder particles to get reinforcing shell.

EFFECT: possibility of using these pellets as pore-forming agents in production of porous cast blanks by vacuum impregnation from metals and alloys with low fusion point and fusible metals and alloys.

2 cl, 1 tbl, 12 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to chemical composition of protective-decorative silicate coating and can be applied for painting metallic external and internal surfaces in order to protect them from corrosion and give them decorative look. Protective-decorative silicate coating contains liquid silicate glass, aluminium powder, surface-active substance sulphopolyethyleneglycol, technical finely disperse chalk with particle size not larger than 10 mcm, latex, polyorganic siloxanes and water.

EFFECT: invention provides high adhesive strength between single-package coating and metallic surface of both non-subjected to corrosion and subjected to different degree of corrosion.

1 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: composition for obtaining heat-insulating coating on concrete building products and constructions contains liquid sodium or potassium glass, swollen vermiculite, product of interaction of caprolactam and triethanelamionoleate, kaoline and/or bentonite, Portland cement, sludge wastes of TPP water preparation, chloroparaffin.

EFFECT: increase of adhesion to concrete surface, hardness, reduction of water absorption of coating, obtained from composition.

1 tbl

Silicate paint // 2540434

FIELD: chemistry.

SUBSTANCE: silicate pain contains thermolysis defecate - waste of sugar production - annealed at temperature 260 and 600C, with particle size 1-2 mcm. Silicate paint includes, wt. p.: zinc dry white - 15-55, talc -15, defecate, annealed at temperature 600C, - 10-64, defecate, annealed at temperature 260C, - 12-63. Liquid sodium or potassium glass with density not less than 1200 kg/m3 is used with weight ratio 1:1 relative to dry part of paint. Paint contains pigment of red colour, obtained from tailings of dressing of ferruginous quartzites - TDFQ, annealed at temperature 1000C.

EFFECT: improvement of painting and technical parameters.

2 cl, 3 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: bakelite lacquer is obtained by condensation of phenols with formaldehyde in water medium in presence of amine catalyst with heating and further cooling condensation product and addition of alcohol solvent in it until required viscosity is obtained. Mixture of phenol and cardanol is used as phenols with their molar ratio phenol:cardanol 1:0.003-0.472.

EFFECT: obtaining binding agent with increased storage term and improved specific electric resistance, lower phenol content.

4 cl, 3 tbl

FIELD: chemistry.

SUBSTANCE: composition for obtaining coating for reducing mechanical loss of high-speed electric machine rotor relates to hybrid organic-inorganic nanocomposite coatings, capable of reducing mechanical loss of high-speed electric machine rotor in cooling gaseous medium. Composition includes sol with silicate constituent based on tetraethoxysilane or methyltriethoxysilane water-alcohol solution and additionally contains modifying additive in form of compound, possessing pyro- and/or piezoelectric properties with size of particles and their aggregates 50-100 nm, with the following component ratio (wt %): sol with silicate constituent - 96-99; modifying additive - 1-4.

EFFECT: application of methyltriethoxysilane in sol composition provides adhesion with stainless steel without high-temperature processing and 11-12 class of surface roughness; application of tourmaline piezoelectric crystals as modifying additive in form of alcohol suspension or crystal powder provides antifriction properties of coating.

1 dwg, 3 ex

FIELD: chemistry.

SUBSTANCE: method of obtaining a multi-layered covering based on SiO2-ZrO2-P2O5-Na2O includes the preparation of a film-forming solution with the following successive application of the said solution on a substrate surface and step-by-step thermal processing. To obtain the covering the film-forming solutions (FFS) are applied. For the first layer applied is FFS, which forms a silicophosphate layer, the first FFS is re-applied. After that, the step-by-step thermal processing is carried out at a temperature of 60C for 30 minutes after the application of the first and second layer, and after the application of the third layer the thermal processing is carried out at 60C for 30 minutes, then at 600C for 1 hour. The components for the first FFS are applied with the following component ratio, wt %: zirconium oxochloride - 5.4; wt % ethyl alcohol - the remaining part. The components for the second FFS are applied with the following component ratio, wt %: tetraethoxysilane - 2.6-4.8; sodium chloride - 3.4-5.6; phosphoric acid - 0.5; 96 wt % ethyl alcohol - the remaining part.

EFFECT: method improvement.

3 cl

FIELD: chemistry.

SUBSTANCE: composition includes hollow aluminosilicate or corundum microspheres, binder in the form of aluminophosphate with free aluminium oxide content of less than 4 wt %, and water with the following ratio of components, wt %: aluminosilicate or corundum microspheres - 45-65, aluminophosphate - 35-55, water - the balance. The microspheres used have internal diameter of 6-250 mcm and wall thickness of 1-10 mcm. The invention also relates to a heat-protective coating which consists of at least two layers on a base, the first of which is the undercoat, and the second layer is made of said composition, wherein the composition for the first layer further includes C45-C60 fullerenes in amount of 0.001-0.002 wt %.

EFFECT: obtaining a durable coating with high operating temperature.

9 cl, 3 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: invention relates to fire-resistant, thermal-protective coatings for different types of surfaces of different shapes which require thermal- and fire-protection, used in different industries as fire-proof, thermal-protective coatings for pipelines of heating systems, boilers and other thermal equipment, for coating equipment in order to protect personnel from contact burns from hot and cold metal surfaces, for cooling equipment used in facilities with unfavourable humidity and temperature conditions as an anti-condensate and anti-corrosion coating, for external heat-insulation of buildings and structures and internal treatment of buildings in order to prevent freezing and dampness of walls. The fire-resistant, thermal-protective coating is made from a composition which includes an acrylic dispersion, filler - closed non-combustible hollow glass microspheres with size or 20-200 mcm, which are free-flowing powders with packed density of 0.18-0.30 g/cm3, kaolin, zinc borate, inorganic binder which is a composition of liquid sodium glass and nano-size silicon hydroxide modified with sodium aluminate, auxiliary components - titanium dioxide, pearlite, aluminium hydroxide, functional additives - decabromodiphenyl oxide, plasticiser S-3, curing agent - sodium silicofluoride and water.

EFFECT: obtaining a thermal-protective coating which is non-combustible, heat-resistant, with high adhesion to metal, concrete plastered and brick surfaces, improved environmental properties and improved technology of obtaining the coating.

2 tbl, 6 ex

Heat protective dye // 2245350

FIELD: chemical industry, paint-vehicle systems, in particular heat protective dyes.

SUBSTANCE: claimed dye contains ceramic and corundum microspheres; resins, selected from group including silicone resin, polyesterepoxy resin, acrylic resin dispersions as binder; pigment; and aluminum powder as deflector. Such composition provides reduced heat loss into environment. Obtained dyes have thermal gradient, improved heat-retention properties and strength, and useful in corrosion and heat-loss protection of building construction, transport, gas and oil lines, heating systems, etc.

EFFECT: easier method for dye production; strength and homogenous heat protective dye layer of improved adhesiveness.

2 cl, 3 tbl

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