Fire-retardant varnish on organic basis

FIELD: chemistry.

SUBSTANCE: fire-retardant varnish on an organic basis contains styrene-acrylic resin, solvents, adhesives, and white spirit, biocide-rheological additive, flame retardant-ammonium polyphosphate (APP), thickener-bentonite clay, tris (2-chloroethyl) phosphate in the following ratio of components, wt %: styrene-acrylic resin - 10-15, butyl acetate - 8-15, white spirit - 35-45, biocide-rheological additive - 0.5-2, flame retardant- APP - 20-30, thickener - 0.7-1.2, tris (2-chloroethyl) phosphate - 5-10.

EFFECT: increasing the level of the fire safety of products made of wood and plastic, coated with fire-retardant varnish on an organic basis.

1 cl

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to obtaining fireproof polyurethane foam from foamed reaction mixture, which consists of mixture of polyols, polyisocyanate and fireproof additives (fire-retardants). Composition for obtaining fireproof polyurethane foam is described, which contains mixture of polyols, polyisocyanate and fireproof additives, with mixture of ammonium polyphosphate and ammonium sulphamate being applied as additives in quantity from 10 to 40 wt % of the total amount of components, and ratio of ammonium polyphosphate to ammonium sulphamate in mixture constitutes respectively from 1:2 to 7:1 weight parts.

EFFECT: obtaining polyurethane foam, which has maximal fire resistance (flammability group G-1), practically invariable density in comparison with polyurethane foam, obtained without fireproof additives.

2 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: group of inventions relates to heat-resistant materials which can be used, for example, in construction and other fields. The heat-resistant foamed polymer composite material contains at least one foamed rubber or foamed polymer as a base, wherein the base has perforations where the pores open along the surface of the material, and filler which fills the volume of the perforations and the opened pores, which contains at least one rubber or polymer, having heat-resistance in the temperature range of 200-700C, or liquid glass, as well as a curing agent and a stabiliser. The method of producing a base includes perforating the surface of a base in the horizontal section to 75% of the area. On the remaining non-perforated part of the surface of the base, material is removed from the surface until pores of the base open. The volumes of the perforations and the volumes of the opened pores cleaned. A method of producing heat-resistant foamed polymer composite material is also disclosed.

EFFECT: invention enables to obtain fire-proof heat-resistant material, having reliable adhesion of the filler with the base and improved distribution of the filler in the base matrix.

62 cl, 1 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to fire-resistant polymer composite material and can be applied in aviation, space technology and different fields of construction. Fire-resistant foamed polymer composite material contains perforated foamed polymer as base and filler, filling its pores. Filler contains mixture of synthetic rubbers, possessing fire resistance in the range from 200 to 700C, if necessary - stabiliser, solvent, pigments, flame retardants, solidifying agent - polyamine, aminosilane or their mixtures. Finished perforated foamed polymer material with area of perforated surface in horizontal section 15-60% is used, liquid filler is prepared and used to fill perforation volumes of foamed polymer material at room temperature until density of composite material 0.25-1.0 g/cm3 is achieved, with further solidification of material for 15-28 hours.

EFFECT: invention makes it possible to increase fire-resistance of foamed polymer composite material, reduce, simplify manufacturing process and extend field of its application.

23 cl, 1 dwg, 1 tbl

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: invention relates to fire-resistant compositions of polyamide resin. Claimed is a fire-resistant composition of the polyamide resin, including a polyamide (A), which contains a unit, representing diamine and containing not less than 70 mol% of a unit, representing p-xylylenediamine, and a unit, representing dicarboxylic acid and containing not less than 70 mol% of a unit, representing a linear aliphatic dicarboxylic acid, which has from 6 to 18 carbon atoms; an organohalogen compound (B), which serves as fire-protective means; an inorganic compound (C), which serves as auxiliary fire-protective means; and an inorganic filling agent (D), where the polyamide (A) includes a polyamide, which has the concentration of phosphorus atoms, constituting from 50 to 1000 ppm, and a value YI, which by results of differential colorimetric analysis in accordance with JIS-K-7105, does not exceed 10, and the content of the organohalogen compound (B), the content of the inorganic compound (C) and the content of the inorganic filling agent (D) constitutes from 1 to 100 wt.p. from 0.5 to 50 wt.p. and from 0 to 100 wt.p., respectively, counted per 100 wt.p. of the polyamide (A). Also claimed is the moulded product from the said composition.

EFFECT: composition has excellent mouldability, mechanical properties, heat resistance and low water absorption.

15 cl, 4 tbl, 21 ex

FIELD: chemistry.

SUBSTANCE: invention relates to fire-resistant thermoplastic compositions, preferably thermoplastic polyurethane (TPU) compositions used when high fire-resistance is desirable, e.g., for wire and cable applications. The composition contains: (a) a thermoplastic polyurethane polymer, (b) a flame retardant and (c) polysiloxane which is modified by adding, preferably at the end of the chain, functional groups such as vinyl, methacrylic and/or epoxy groups. The polysiloxane is present in amount of 0.25 to 0.75 wt % with respect to the total weight of the composition. The composition is used as heat-insulating material for electrical conductors or as electrical conductor sheathing in wire and cable design.

EFFECT: mixture does not drip in case of fire and has very high heat resistance.

12 cl, 1 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention relates to phosphorus-containing fire retardants, particularly, but not exclusively, for glass-filled polyamide resins. A fire-resistant polymer composition contains a main polymer (A), where the main polymer (A) includes a glass-filled polyamide, and a benzyl-substituted organophosphorus compound (B). The organophosphorus compound (B) is present in amount of about 10 wt % to about 30 wt % with respect to the amount of the fire-resistant polymer composition.

EFFECT: said organophosphorus compounds, especially if coupled with specific synergists, are effective fire retardants for thermoplastic polymers, including polyamides, especially glass-filled polyamides.

14 cl, 4 tbl, 10 ex

FIELD: chemistry.

SUBSTANCE: composition contains polyolefin, magnesium or aluminium hydroxide or their mixture and carbon in the form of graphite nanoplates. A ratio of the components is as follows, wt %: polyolefin - 60-85, magnesium or aluminium hydroxide or their mixture - 10-20, graphite nanoplates - 5-20.

EFFECT: obtaining polyolefin-based materials, characterised by the reduced combustibility and possessing a complex of physical and mechanical properties.

4 dwg, 3 tbl

FIELD: chemistry.

SUBSTANCE: composition comprises liquid low-molecular siloxane rubber, ethylsilicate-40 or tetraethoxysilane as a curing agent, alkoxytitranium borate and vanadium pentoxide. Components are in the following ratio, pts.wt: liquid low-molecular siloxane rubber - 100, ethylsilicate-40 or tetraethoxysilane - 10-30, alkoxytitranium borate - 10-30, vanadium pentoxide - 10-20.

EFFECT: high water-resistance, wear-resistance and fire-resistance of the coating.

2 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to elaboration of a fireproof decorative-finishing material - artificial leather, obtained by coagulation of a solution based on a polyurethane composition. The decorative-finishing material contains a woven layer, preliminarily impregnated with an aqueous silicone emulsion and dried to the weight gain of the latter of 3.0-8.5 wt %, on which, after that, a primer and a front layer are successively applied with intermediate drying. The primer layer is made of a composition, which contains 25% solution of polyurethane "Vitur 0512", dimethyl formamide with a viscosity of 120-170 P and a dry residue 18.0-22.0 wt % for the primer layer. The front layer is made of a composition, containing 15% solution of polyurethane "Vitur 0512", a surface-active substance OP-10, di-(2-ethylhexyl)-phthalate, ammonium polyphosphate, dimethylformamide with a viscosity of 205-210 P and a dry residue 26.0-27.0 wt % for the front layer. Front layers are coagulated in a coagulation bath with a composition of 30.0 wt % of dimethylformamide and 70.0 wt % of water at a temperature of 50C for 20 min, washed in a bath with flowing water until content of dimethylformamide is less than 3.0%, dried and finished with a polyurethane composition, containing 25% solution of polyurethane "Vitur 0512", the surface-active substance OP-10, di-(2-ethylhexyl)-phthalate, ammonium polyphosphate, dimethylformamide with a viscosity of 84 P and a dry residue 24.5 wt %. After that, the half-finished product is processed in a padding bath with compression rolls at a temperature of 60C with an aqueous solution of a mixture of polyphosphoric acids and urea with a ratio of nitrogen and phosphorus respectively 1.0:1.56-1.80 and drying for 4 min at a temperature of 120C until the weight gain is 20.0-25.0 wt %. The obtained finished material has a ratio of layers by weight, equal: woven layer, including 3.0-8.5 wt % of the silicone emulsion: polyurethane layers: the said mixture of polyphosphoric acids and urea respectively 1.0:0.85-0.93:0.37-0.48.

EFFECT: obtained fireproof decorative-finishing material has high hygienic parameters and fire resistance by GOST 25076-81 - 0 mm/s, time of smouldering - 3-4 s.

2 cl, 4 tbl, 7 ex

FIELD: textiles, paper.

SUBSTANCE: cuttings and/or textile flap is impregnated with a solution of flame retardant composition based on formaldehyde its concentration in the solution of 150-155 g/l, with addition of urea at a concentration of 150-200 g/l in the solution. The impregnation is carried out at a closed turnover cycle of the impregnating agent by downloading the material into the horizontal centrifuge with turnover of not less than 1200 per minute. Then the working solution of flame retardant composition is fed, followed by settling and spinning the impregnated material to the residual moisture content of not more than 5%, and then the material is unloaded from the centrifuge and sent for cutting and fibre separation with spiked rollers. In the process of fibre separation, the flame retardant composition is additionally fed to the material through the nozzles. With poor capillarity of the textile wastes the water-soluble surfactant (Prevocell, Sulfosid) is added to the solution as a wetting agent at a concentration of 0.3-1 g/l in the solution.

EFFECT: method enables to obtain the fibre separated pulp from the textile wastes with reduced flammability for subsequent use in the production of nonwoven materials for automotive industry.

3 cl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to fire-resistant polymer composite material and can be applied in aviation, space technology and different fields of construction. Fire-resistant foamed polymer composite material contains perforated foamed polymer as base and filler, filling its pores. Filler contains mixture of synthetic rubbers, possessing fire resistance in the range from 200 to 700C, if necessary - stabiliser, solvent, pigments, flame retardants, solidifying agent - polyamine, aminosilane or their mixtures. Finished perforated foamed polymer material with area of perforated surface in horizontal section 15-60% is used, liquid filler is prepared and used to fill perforation volumes of foamed polymer material at room temperature until density of composite material 0.25-1.0 g/cm3 is achieved, with further solidification of material for 15-28 hours.

EFFECT: invention makes it possible to increase fire-resistance of foamed polymer composite material, reduce, simplify manufacturing process and extend field of its application.

23 cl, 1 dwg, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to fire-resistant thermoplastic compositions, preferably thermoplastic polyurethane (TPU) compositions used when high fire-resistance is desirable, e.g., for wire and cable applications. The composition contains: (a) a thermoplastic polyurethane polymer, (b) a flame retardant and (c) polysiloxane which is modified by adding, preferably at the end of the chain, functional groups such as vinyl, methacrylic and/or epoxy groups. The polysiloxane is present in amount of 0.25 to 0.75 wt % with respect to the total weight of the composition. The composition is used as heat-insulating material for electrical conductors or as electrical conductor sheathing in wire and cable design.

EFFECT: mixture does not drip in case of fire and has very high heat resistance.

12 cl, 1 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: fireproof rubber mixture contains isoprene and butadiene rubbers, sulphur, sulphenamide C, zinc oxide, magnesium oxide, paraffin, naphtham-2, diaphene FP, technical carbon, N-nitrosodiphenylamine, chloroparaffin, antimony trioxide, aluminium hydroxide.

EFFECT: improved fire resistance and physical-mechanical properties.

2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to production of a fire-resistant rubber mixture and can be used in oil extraction, oil processing and mining industry. The rubber mixture contains the following ingredients, pts.wt (per 100.00 pts.wt rubber): butadiene-nitrile rubber - 100,00; thiuram D - 1.5; N,N'-dithiodimorpholine - 2.0; sulphenamide C - 2.0; naphtham-2 - 1.5; diaphene FP - 1.0; stearine - 1,0; colophony - 5.0; N-nitrosodiphenylamine - 1.0; chalk - 30.0; technical carbon P 701 - 55.0; technical carbon P 514 - 20.0; zinc oxide - 5.0; antimony trioxide - 4.0; chlorinated paraffin CP-1100 - 20.0; trichloroethylphosphate - 15.0; barium borate - 5.0.

EFFECT: obtaining a fire-resistant rubber mixture with high resistance to aggressive media and improved elasticity and strength properties.

2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to fire-resistant foamed polystyrene articles which can be used in building and fitting houses. The foamed article with apparent density of 5-200 kg/m3 is obtained from a composition containing the following components, wt %: 25-60 foamed or foamable small beads or particles of polystyrene, 10-30 foamed substance, 30-50 fire-resistant binder which is an inorganic material selected from a list which includes metal silicates, metal aluminates, metal aluminosilicates and zeolites. The foamed substance is at least one substance selected from a group comprising melamine, phosphine, phosphonate, foamed graphite, foamed small glass beads and nanoclay. Also described is a method of producing a fire-resistant foamed polystyrene article, involving a step for applying a coating of fire-resistant binder and a foamed substance on foamed small beads or particles of polystyrene, drying the coated small beads, transferring the coated small beads or particles into a die mould and pressing and moulding the small beads or particles at high temperature.

EFFECT: higher fire-resistance of foamed articles made from polystyrene and preserving structural strength when in contact with fire.

10 cl, 2 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: at the first step (a) of the method of preparing fire-resistant binder, a hardener is added to liquid epoxy resin, having temperature not higher than approximately 30C. At the second step (b), copper nanoparticles are added to the obtained mixture At the third step (c) the mixture is mixed with the added copper nanoparticles to obtain a stable suspension. At the fourth step (d) the obtained suspension is added to pre-accelerated cold-setting vinyl ether resin. Finally, at the fifth step (e) the formed mixture is stirred to obtain fire-resistant binder.

EFFECT: high fire resistance of composite materials prepared using said binder, while preserving mechanical characteristics of such materials, their physical-mechanical properties and manufacturability when processing using an infusion technique.

18 cl, 3 ex, 2 tbl

FIELD: construction industry.

SUBSTANCE: invention refers to construction materials, and namely to fire retardants for making flame-resistant coatings for metal and wood, and can be used in shops of factories and construction sites for applying coatings to metal and wooden structures in order to increase their fire resistance. Fire retardant includes the following, wt %: magnesium hydroxide 20-70; carbamide 5-10; liquid glass is the rest. Invention has been developed in depending claim.

EFFECT: increasing heat-absorption capacity of filling, increasing efficiency of fire-resistant coatings for metals and wood, simplifying and cheapening technical process of obtaining and preparation of filler, stabilisation of filler properties during its transportation and storage.

2 cl, 5 tbl, 5 ex

FIELD: carbon materials.

SUBSTANCE: invention relates to graphite intercalates, which can be used as safe supplement in preparation of fireproofing compositions. Volume-growing graphite intercalates contain, as intercalated constituents, at least one intercalated Lewis acid selected from aluminum, antimony, zinc, yttrium, chromium, nickel, and/or iron chlorides and, if necessary, in combination with solvent(s) used in preparation thereof, and at least one organic compound.

EFFECT: enabled purposeful setting of initial temperatures of graphite intercalates within a wide range.

13 cl, 1 dwg, 2 tbl, 6 ex

FIELD: production of fireproof materials and protective textile materials possessing specific properties.

SUBSTANCE: proposed composition contains 100 parts by mass of low-molecular siloxane rubber, 25-80 parts by mass of hardening agent and 20-60 parts by mass of ortho-titanium ester. Stability of composition may be increased at room temperature to 72 h and abrasion resistance may be increased by six times.

EFFECT: enhanced efficiency; enhanced stability and abrasion resistance.

1 tbl, 5 ex

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

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