Method of obtaining water epoxide dispersion
SUBSTANCE: invention relates to method of obtaining water epoxide dispersion, used for impregnating concrete and wooden constructions in order to ensure their water-proofness, obtain anti-corrosion, decorative, electro-insulating coatings, as well as for impregnation of fabrics and for other purposes. Method consists in the following: epoxide component (A) and aliphatic difunctional compound (B) are brought into interaction with ratio A:B from 95:5 to 30:70 at temperature 50÷90°C during 1÷5 hours. Reaction is carried out in presence of tertiary amine or dimethylamine catalyst in amount from 0.01 to 5% of reagents weight until content of epoxide groups in component A decreases to from 5 to 70% of initial quantity. Epoxide ingredient represents mixture of cycloaliphatic or aliphatic resin with aromatic epoxide resin, containing ≥ 2 epoxide groups in molecule, with their ratio 3:97 to 97:3. Aliphatic difunctional compound represents compound selected from group including acid, alcohol, oxyacid. To obtained product of interaction initial component (A) is added with their ratio from 5:95 to 95:5. Further, mixture is mixed during 5÷25 minutes, four equal portions of distilled water are added with intervals from 5 to 75 minutes, and concentration of main substance is brought to 10÷70%.
EFFECT: obtaining stable water epoxide dispersion, containing product of interaction with residual epoxide groups, in absence of solvents and surface-active substances.
2 tbl, 11 ex
The invention relates to the field of production of aqueous dispersions based on epoxy resin used for impregnation of concrete and wooden structures to ensure their water resistance, as well as causing corrosion protection, decorative, insulating coatings, impregnation of fabrics and other purposes.
A method of obtaining water emulsions on the basis of epoxy resins by introducing an organic solvent and emulsifier noniongenetical type, followed by stirring at 51-79°C and the introduction of water (see RF patent №2154081 from 12.01.1999,).
The disadvantages of this method are the introduction noniongenetical emulsifiers and organic solvents, reducing the strength of hardened materials and their adhesion to polar surfaces, as well as the impossibility of its realization with the use of other types of epoxy resins except Dianova.
The closest prototype of the proposed solution is the method of obtaining the aqueous epoxy dispersion, comprising a step for the product of the interaction of polyethylene glycol (difunctional connection) N.M. from 4000 to 9000 and diglycidylether ether of bisphenol a with amoxicillinno from 180-700 in a molar ratio of glycol to apachegroup from 3:1 to 5:4 in the presence of a Lewis acid in an inert solvent type toluene followed by the addition of surface-active is wow compounds and water, and further mixing with an epoxy resin (see U.S. patent 4246148 from 20.01.1981 year).
The disadvantages of the described method are the absolute predominance in the product of the interaction of hydroxyl above epoxypropane that leads to the exhaustion of the past and, as a consequence, it is not possible to obtain when using the composition of high-strength materials, and the dispersion of inert solvents and surface-active substances, which impair the properties of the material and polluting the environment.
The aim of the present invention is to remedy these disadvantages, i.e. the production of stable aqueous epoxy dispersion containing the product of the interaction with the residual epoxy groups, allowing for the use of it to cure specific hardeners, and does not contain solvents and surfactants, which are factors contributing to the deterioration of the material properties and the environment.
This objective is achieved in that in the process of obtaining the aqueous epoxy dispersion as the epoxy component (A) take the mixture of cycloaliphatic or aliphatic resins, aromatic epoxy resin, containing ≥2 epoxy groups in the molecule in a ratio of 3:97 to 97:3, and as difunctional compounds (B) used acids, alcohols, oxyacids where is Oseni a:B is from 95:5 to 30:70, and the process is conducted in the presence of catalyst the tertiary amine in an amount of from 0.01 to 5% by weight of the reactants at a temperature of 50÷90°C for 1÷5 hours to reduce the content of epoxy groups in the component And from 5 to 70% of the original quantity, then the product of the interaction type of the source component in a ratio of from 5:95 to 95:5, stirred for 5÷25 minutes and added in four equal portions at intervals of 5÷75 minutes distilled water, bringing the concentration of the basic substance to 10÷70%.
In a reactor equipped with a stirrer and heating load 30 mass parts of cycloaliphatic epoxy resin brand UE-632, representing 3.4 epoxycyclohexyl - 3',4' epoxycyclohexanecarboxylate and 30 mass parts of the aromatic epoxy resin brand REN-3, representing diglycidyl ether of resorcinol. The temperature in the reactor was raised to 60°C. and a mixture of resins (component a) is stirred for 10 minutes. Then charged to the reactor sabotinova acid (component B) in an amount of 40 mass parts, i.e. with a ratio a:B=60:40 and 2 mass parts of the catalyst is triethanolamine. The mixture is stirred at 70°C for 3 hours, after which the content of epoxy groups in the component And is reduced to 50% from the original, and the carboxyl component B is almost exhausted, which confirms the formation of forcontent. To receive nomu forcontent add another 60 mass parts of the component and after stirring for 10 minutes 4 equal portions with an interval of 40 minutes load 250 mass parts of distilled water, bringing the concentration of dry matter up to 64%. The resulting aqueous dispersion stariway in corrosion-resistant container.
Examples 2÷11 carried out analogously to example 1 when the parameter is changed in accordance with table 1.
The properties of the resulting aqueous epoxy dispersions by the present method are given in table 2, which shows their advantages compared to analogue and prototype.
The method of obtaining the aqueous epoxy dispersion, namely, that spend interaction epoxy component (A), which is a mixture of cycloaliphatic or aliphatic resins, aromatic epoxy resin, containing ≥2 epoxy groups in the molecule, at a ratio of 3:97 to 97:3, and aliphatic difunctional compounds (B)selected from the group comprising acid, alcohol, hydroxy acids, with a ratio a:B is from 95:5 to 30:70, at a temperature of 50÷90°C for 1÷5 h in the presence of a catalyst tertiary amine or amine in an amount of from 0.01 to 5% by weight of the reactants, to reduce the content of epoxy groups in the component And from 5 to 70% of the original quantity, then the product of the interaction type of the source component (A) at a ratio of 5:95 to 95:5, stirred for 5÷25 min, and add four equal portions of distilirovanoy with intervals from 5 to 75 min, increasing the concentration of the basic substance of 10-70%.
SUBSTANCE: method consists in surface application of layer of liquid-ceramic coating from composition that contains binder, mixture of hollow microspheres that differ in size in the range from 10 to 500 mcm and bulk density from 650 to 50 kg/m3, and auxiliary target additives, if required one or more layers of glass fibre mat, and then one or more layers of polymer blistering fire-resistant composition with additives are applied.
EFFECT: high heat insulation and fire-resistant properties.
5 cl, 3 tbl, 4 ex
FIELD: technological processes; chemistry.
SUBSTANCE: method consists in application of alternating layers of liquid-ceramic coating and layers of glass fiber cloth on surface that might have been heated previously. At that substrate may be first coated with liquid-ceramic coat from polymer composition that contains binder, mixture of hollow microspheres that differ in size and auxiliary target additives, then layer of glass fiber cloth is applied on still wet coating, and then again layers of liquid-ceramic coating, and if necessary - a layer of glass fiber cloth again. Coating may be produced by another version, when substrate is first coated with glass fiber cloth, and then liquid-ceramic coating, and later again a layer of glass fiber cloth, if required. Number of alternating layers is defined by necessary coefficient of heat conductivity.
EFFECT: high heat insulating properties of coating.
12 cl, 3 tbl, 2 ex
SUBSTANCE: present invention pertains to a coating, preventing ice-covering of different surfaces and objects, especially pipes, electrical cables, metal, concrete, plaster etc, and with anticorrosion and heat insulating properties at the same time. The coating is made from a water dispersion composition with viscosity 1-100 Pa·s, containing a polymer binder in form of a 5-95 vol. % polymer latex composition, containing 10-90 vol. % (co)polymer, chosen from a group, comprising acrylate homopolymer, styrene-acryl copolymer, butadiene-styrene copolymer, polystyrene, butadiene polymer, polyvinylchloride polymer, polyurethane polymer, vinyl acetate (co)polymer or their mixture and 5-95 vol. % mixture of hollow microspheres with diameter varying from 10 to 500 mcm and different packed density from 650 to 50 kg/ m3, chosen from a group, comprising hollow glass microspheres, hollow ceramic microspheres, hollow polymer microspheres, hollow technogenic (ash) microspheres or their mixture and from 10 to 90 vol. % mixture of water and a surface active substance, and deposited, at least, in form one layer on the protected surface, with subsequent drying of the coating.
EFFECT: increased effect of the coating.
SUBSTANCE: invention relates to manufacture of paint and varnish materials. The water-dispersive elastic first coat contains film-forming-unplasticised water-copolymer dispersion based on of acrylic and methacrylic acid ethers and styrene MOVOLIT 760 in the amount of 35 to 40 wt %, foam-suppressor BIK-037 representing a water emulsion of the mix of mineral oil, paraffin and (poly)methyl siloxane in the amount of 0.1 to 0.3 wt %, biocide additive in the form of the antiseptic additive ROSIMA 243 representing 10-th solution of octylisothiazolone in diethylene glycol in the amount of 1.0 to 1.5 wt %, intracontainer preservative ROSIMA 535N based on the composition of formalin and a mix of 5-chlorine 2-methyl-2N-isothiazole-3-on and 2-methyl-2H-isothiazole-3-on in the amount of 0.1 to 0.3 wt % and water.
EFFECT: water-dispersive elastic first coat with high elasticity and depth of penetration into substrate.
2 tbl, 3 ex
SUBSTANCE: invention refers to protective filming finishes on various surfaces and materials, specifically applied for pipelines and building structures. Liquid ceramic insulation finish represents water-suspension composition including mixed air-filled hollow ceramic and silicon microspheres, plastic binder that is acrylic latex, defoaming agent Sotro-145 representing waterless composition of nonionic surface-active substances, silicon organic liquid and active admixtures, preserving agent that is germicide representing reaction product of monoethanolamine and paraform, pigment that is titanium dioxide, anticorrosive pigment that is zinc phosphate, polymeric additive Verowett 8004 as dispersant, aqueous emulsionof acrylic copolymer as thickening agent, water, with added fractal aggregates that are highly-loosened porous structure in the form of aerogel, expanded vermiculite and Circulite, hydrophobisator and bulking agent that is carbon white.
EFFECT: production of finish with improved thermal protective, noise absorbing and wear-resistant properties.
1 tbl, 4 ex
SUBSTANCE: invention pertains to water-base lacquer coating materials, meant for depositing on metallic and non-metallic structures in construction, aviation technology and other industries. Description is given of the lacquer coating composition, which contains water-base aryl copolymer "ОЛД-04С" - a product of cohydrolysis of acrylic acid, methacrylic acid, methyl methacrylate, butyl acrylate and calcium (meth)acrylate in quantity of 100 wt %, pigments 50-205.1 wt %, silicone fluid 0.3-0.7 wt %, water 450-550 wt %. The pigments used in the proposed composition are in form of titanium dioxide, blue phthalocyanine pigments, blue anthraquinone, green phthalocyanine, yellow light resistant, red iron oxide, coloured refractory pigments, carbon black and or their mixture. The composition can also contain filler in form of talc, kaolin, modified nano-silicate and or their mixture in quantity of 7-93 wt %, and melamine phosphate in quantity of 1-5 wt % as a fire retarding agent.
EFFECT: proposed lacquer coating composition provides for good rheological properties, in particular good opaqueness, high water resistance and freeze resistance with retention of adhesive and physical and mechanical properties.
FIELD: technological processes.
SUBSTANCE: varnish represents opaque liquid, which performs protective layer on the surface of PVC linoleum during processing in technological line and demonstrates decorative properties and resistance to influence of chemical agents. Invention provides production of high quality product, which consists of chain of chemical compounds suitable for application on the layer of printing paints as protective coat, including ultraviolet radiation, which produce after emulsification and correction of viscosity strong protective layer of varnish coat with proper colour gamma of opaque layer.
EFFECT: higher resistance of protective coat.
2 cl, 2 ex
SUBSTANCE: invention pertains to production of coating materials, in particular to finishing materials, used for external and internal finishing of buildings and other structures, and more specifically relates to materials for coating concrete surfaces. Description is given of the latex priming composition, which contains a latex film-forming agent in form of a 50% syrup of acrylic dispersion DL-430 or Acronal-290 based on a copolymer of methylacrylate, butylacrylate, acrylamide, styrene and ethylbenzene in quantity of 5-50 mass %, plasticiser - dibutylphtalate or dioctylphtalate in quantity of 0.2-3.0 mass %, surface active substances based on polyoxyethylene esters of alkylphenols in quantity of 0.2-1.0 mass %, kaolin 20-30 mass %, fine-dispersed chalk 20-30 mass %, thickener 0.4-6.0 mass %, carbon black 0.2-1.0 mass % and water. The composition contains an extra technical target additive, chosen from a group containing a coalescent additive, anti-foaming agent, antiseptic additive, alkali, antifreeze or their mixture.
EFFECT: obtaining latex priming with short drying time, low water absorption and vapour permeability, high freezing and heat resistance.
2 cl, 1 tbl, 5 ex
FIELD: inorganic chemistry.
SUBSTANCE: invention refers to production of materials used for protective coatings of various natural and man-made surfaces. Method is realised in the following way: neonol, marble powder are fine grinded in ball grinder. White spirit, aqueous ammonia (25%) and water are added and mixed to homogeneous composition which is added with carbon nanofibre, carbon nanoclusters and butadiene-styrene latex, all specified components are additionally mixed to homogeneous composition, added with defoaming agent and thickener. Produced material is packed. As carbon nanofibre and carbon nanoclusters components produced by methane pyrolysis on catalyst Ni/MgO at fibre length 50-100 mcm and diameter 20-60 nm. Finished product has high adhesive ability and protective properties as applied on metal, polymer surfaces, wood and other materials.
EFFECT: production of high-adhesive coating material with high protective properties.
FIELD: light industry; composition of decorative coats for wallpaper; manufacture of pearly ink for intaglio printing on wallpaper.
SUBSTANCE: composition of proposed printing ink for wallpaper contains 16-16.5 mass-% of pearly pigment; 12-12.5 mass-% of ethyl alcohol; 46-46.4 mass-% of binder - acrylic latex of butyl acrylate copolymer (19-21%) and methacrylic acid (10-12%) and water; copolymer acrylic latex is produced by method of radiation emulsion polymerization of butyl acrylate, vinyl acetate and methacrylic acid under action of ionizing radiation at dose rate of 0.05-0.1 g/s to absorbed doses of 1.5-2 kgr.
EFFECT: avoidance of lamination of ink; easily washable ink; enhanced heat resistance of ink.
1 tbl, 2 ex
SUBSTANCE: epoxy composition is intended for obtaining anti-corrosion coatings on products and reservoirs from concrete, reinforced concrete, metallic constructions. Composition includes following components, with their ratio, wt %: 47.4-54.4 of epoxy-diane resin ED-20, 2.8-4.3 of modifier, 19.6-27.0 of solvent, 21.7-22.8 of amine hardener. As modifier composition contains polyisocyanate based on 4,4'-diphenylmethandiisocyanate. As solvent composition contains solvent R-4. As hardener composition contains aromatic polyamine "Aramine".
EFFECT: increase of water-resistance and resistance of composition to impact of acids and alkalis.
2 tbl, 4 ex
SUBSTANCE: proposed composition consists of a semi-finished product and a hardener of polyisocyanate biuret No 31. The semi-finished product has the following ratio of components, in wt pts.: 42.0-55.4 epoxy-melamine-polyester lacquer "ЭП-074" with 55.4% content of non-volatile substances, 33.3-40.8 white titanium pigment TiO2 with rutile structure, 1.4-5.8 synthetic aerosil silica A-175 and 4.0-5.2 talcon MM-20 microtalc as filler, 4.7-19.0 P-189 solvent. The hardener is taken in quantity of 8-13.5 wt.pts per 100 wt pts of semi-finished product. The system of anticorrosion coating comprises a top layer, intermediate layer and a bottom layer. The top and intermediate layers of the system are made from the above mentioned composition. The bottom layer of the system is made from epoxide base coating material "ВГ-33", which contains specularite pigment.
EFFECT: invention increases adhesion to steel at low hardening temperature, impact strength and elasticity, increases the service life of the coating system.
2 cl, 5 tbl, dwg
SUBSTANCE: anticorrosive coating compound with high content of non-volatile components containing a major component (A) containing epoxy resin (a1) and polymerised monomer (a3) (meth)acrylate, and curing component (B) containing alicyclic amine hardener (b1) and/or Mannich base-type hardener (b2); component (A) and/or component (B) contains at least either an additive (a2) chosen from epoxidated reactive diluents and modified epoxy resins, and a modifier (ab) of coating film chosen from petroleum polymer resins, xylene resins, coumarone resins, terpene-phenolic resins and vinyl chloride copolymers. Anticorrosive coating compound with high content of non-volatile components, particularly quick-set compound is characterised by content of organic solvents with boiling temperature 150°C and higher. Essentially it does not contain organic solvents with boiling temperature 150°C or lower.
EFFECT: compound is used to coat all time of the year regardless of temperatures due to quick drying and sufficient viability and has good low-temperature curability.
59 cl, 9 tbl
SUBSTANCE: invention refers to polymeric compound for improved corrosion resistance coating to be used for corrosion protection of structural components of metal and concrete buildings, pipelines, metal carriers and assemblies for various engineering fields, to design wear-proof self-levelling floors being solvent and oil resistant, as well as for decorative finish of the surfaces specified above. The compound is two-component and is generated by combining component A and component B in ratio 1:0.01 to 1:100. Component A contains the following components in ratio, wt %: diane epoxy resin 60-62, aliphatic epoxy resin 12-13, basalt bulk additive 26-27. Basalt bulk additive is andesite basalt scale of fraction size 0.001-0.4 mm. Component B is mixed oligoamide hardener in amount 71-73 wt % and specified andesite basalt scale in amount 27-29 wt %. Hardener is aromatic oligoamide ETAL. Invention allows for lower toxicity of compound, improved barrier protective properties, and extended functional area.
EFFECT: lower toxicity of compound, improved barrier protective properties, and extended functional area.
SUBSTANCE: invention refers to versions of solidificated powder coating composition and to method of cathodic protection of steel substrate. According to the first version, the composition contains as follows: (a) thermosetting resin, (b) zinc borate compounds in amount 0.5 to 4.75 wt % in relation to total solid weight, (c) curing agent for the specified structure, in amount effective for coating solidification, (d) filler, pigment and additive. Thermosetting resin is epoxy with functional groups of A/epichlorhydrin bicphenol. Curing agent is accelerated dicyandiamide or phenolic curing agent. According to the second version, the composition contains thermosetting epoxy, curing agent specified above, and zinc borate compound in amount 0.5 to 4.75 wt % in relation to total solid weight. Method of cathodic protection consists that steel substrate is machined and covered with the composition of the first version. It is followed with polarisation of steel substrate covered as cathode.
EFFECT: higher long-time cathodic disbandment resistance with high temperature and humidity application.
14 cl, 3 tbl, 6 ex, 1 dwg
SUBSTANCE: an active base - wastes from production of perchlorocarbons, which is a mixture of saturated and unsaturated perchlorocarbons, chlorohydrocarbons and resinous wood are mixed with a solvent at 70-90°C temperature for 1.0-1.5 hours. Dioctylphthalate, "ХП-470" chloroparaffins, epoxy resin "ЭД-20" or "ЭД-18", polyethylenepolyamines or polypropylenepolyamines are then added. The mixture is then stirred at 75-85°C for 1.5-2.0 hours. The components of the composition are taken in the following ratio, in wt %: 40-50 of the above mentioned active base, 0.4-1.6 dioctylphthalate, 0.1-0.4 "ХП-470" chloroparaffins, 2.0-4.5 epoxy resin "ЭД-20" or "ЭД-18", 0.2-1.4 polyethylenepolyamines or polypropylenepolyamines, and solvent constitutes the rest.
EFFECT: increased resistance to effect of aggressive media and simplification of preparation of the composition.
3 cl, 1 tbl, 6 ex
SUBSTANCE: according to the first version of the method, an active base - resinous wood, separated through steam distillation from non-recycled wastes from production of epichlorohydrin, is heated to 55-70°C for 0.5-1.0 hours. Epoxy resin "ЭД-20" or "ЭД-18", dioctylphthalate and a solvent are then added. The reaction mixture is stirred at 45-80°C for 1.0-1.5 hours. The components are taken in the following ratio, in wt %: 65-85 active base, 2.0-3.5 of the above mentioned epoxy resin, 0.4-0.6 dioctylphthalate, and solvent constitutes the rest. The second version of the method involves mixing the active base - resinous wood, separated through steam distillation from non-recycled wastes from production of vinyl chloride, and a solvent at 60-70°C for 2 hours. Dioctylphthalate is then added, as well as epoxy resin "ЭД-20" or "ЭД-18" and polyethylenepolyamines, and the reaction mixture is kept at 65-75°C for 2 hours. The components are taken in the following ratio, in wt %: 60-80 active base, 0.35-0.5 dioctylphthalate, 2.8-3.5 of the above mentioned epoxy resin, 0.6-1.2 polyethylenepolyamines, and solvent constitutes the rest.
EFFECT: increased resistance to effect of aggressive media and simplification of preparation of the composition.
4 cl, 2 tbl
SUBSTANCE: epoxide component of primer is an epoxy-functional extended urethane, which contains product of reaction of: a) curable resin-like polyepoxide, which contains diglycidyl ether of bisphenol F; b) organic compound, which contains a number of substitutable hydrogen atoms; and c) polyisocyanate. Molecular weight of resin-like polyepoxide is 360 to 550, molecular weight of epoxy-functional extended urethane is 1500 to 2200. Toluene diisocyanate is used as polyisocyanate, molar ratio a:b:c is 35-50:4-12:0.5-1.5. Two-component system of epoxy-amine primer contains an amine component and an epoxy component, with addition of one or several corrosion inhibitors and/or one or several siliceous materials and/or mixture thereof.
EFFECT: primer with improved technical properties is obtained.
13 cl, 1 tbl, 2 ex
SUBSTANCE: invention relates to a composition that can be used for protection of metal surfaces of whatever machinery in contact with corrosion provoking media against corrosion. The composition includes the following components with their ratio in wt %, i.e. 100 of polymer binding epoxy dianic pitch, 20 to 30 of epoxyurethane oligomer modifier, 42 to 48 of organo-silicon amine hardener - γ-aminopropyletoxysilane, 25 to 30 of mineral filler, i.e. titanium dioxide (rutile), 22 to 25 of chromium phosphate inhibiting pigment, 20 to 60 of organic solvents, 3 to 4 of aerosol thixotropic agent, 10 to 20 of anti-rust additive of metal zinc. Xylene or acetone, either butyl acetate, or ethylcellosolve are used as organic solvents.
EFFECT: production of benzene-and water-proof coat with high adhesion properties.
2 tbl, 8 ex
SUBSTANCE: invention concerns method of protection and recovery of corroded metal surfaces operating in abrasive wear conditions and aggressive media, e.g. in fertiliser transportation, and can be applied in power-producing, chemical and mining industry for rusted equipment repair. Method involves application of primer layer on metal surface with further drying till aftertack, insulation layer with further drying till aftertack, and external layer with further drying to complete hardening. Primer layer is made of composition including the following components, wt %: 20.0-30.0 of epoxy diane resin with epoxy equivalent weight of 450-500, 15.0-25.0 of Versamid 115 polyamide solidifier, 12.0-25.0 of pigments, 12.0-25.0 of fillers, 2.0-5.0 of amine-containing Cardolite NC 562 solidifier based on 3-n pentadecanylphenol, the rest is organic solvents. Insulation layer is made of composition including the following components, wt %: 20.0-35.0 of epoxy diane resin with epoxy equivalent weight of 450-500, 15.0-30.0 of Versamid 115 polyamide solidifier, 5.0-10.0 of fillers, 10.0-50.0 of micaceous iron ore, 2.0-5.0 of amine-containing Cardolite NC 562 solidifier based on 3-n pentadecanylphenol, 0.8-1.2 of structurising additive, the rest is organic solvents. External layer is made of composition including the following components, wt %: 20.0-40.0 of acrylic or polyether hydroxyl-containing resin, 11.0-22.0 of aliphatic isocyanate solidifier, 10.0-20.0 of pigments, 10.0-40.0 of micaceous iron ore, 5.0-10.0 of fillers, 0.2-0.6 of polysiloxane modified organically, 0.8-1.2 of structurising additive, 0.6-2.4 of aluminum powder, the rest is organic solvents. Composition of external layer includes additionally Metatin Catalyst tin dibutyllaurate in amount of 0.05-0.5 wt % as drying accelerator.
EFFECT: enhanced corrosion resistance of coating.
cl, tbl, 2 ex
FIELD: hydraulic insulating materials for hydraulic insulation and corrosion prevention of concrete, metal and reinforced concrete structural surfaces.
SUBSTANCE: claimed composition contains: butadiene-styrene thermoelastomer, diepoxy resin, filler (carbon black), solvent (toluene), pigment filler, containing aluminum and iron hydroxides and additionally indene-coumarone resin, waterproofing agent (liquid polymethylsiloxane), and stabilizer.
EFFECT: composition with high adhesion to concrete and metal surface and improved strength.