(57) Abstract:Usage: protection components and structures of ferrous and non-ferrous metals, operated in the temperature range from -40°C to +550°C. the Essence, paint includes, %: polyphenylsiloxane butanediamine resin direct synthesis of 20 - 22, a copolymer of methyl methacrylate with methacrylic acid, 13 - 29, aluminium powder 12 - 18, Aerosil 3 - 7 and the solvent 36 - 40. Resistance to alternating action temperature -40 to +550°C 10 cycles. table 2. The invention relates to paints, varnishes and lacquers based on silicone resins, designed to protect components and structures of ferrous and non-ferrous metals, operated in the temperature range from -40aboutC to +550aboutC.Known conductive composition containing polymethylsiloxane liquid zinc oxide, aerosol, aluminium powder, copolymer of butyl methacrylate and methacrylic acid  This part is used only in the electrotechnical industry in obtaining a discharge current sources and can withstand temperatures up to +400aboutC. However, this structure cannot be used to protect metal products, operated in the temperature range from -40about
The disadvantage of this paint is used as a film-forming methylphenylsiloxane resin not forming at a temperature of 150-250aboutWith reliable mesh patterns (knitting), which destruction occurs at temperatures above 250aboutC. in Addition, the coating on the basis of this paint dry only at elevated temperatures (above 100aboutC).Technical problem on which this invention is directed, is the extension of temperature range of operation of the paint coating -40aboutC to +550aboutC. This task is achieved in that the heat-resistant paint, including polyphenylsiloxane resin, aluminum powder and aerosol, as polyphenylsiloxane resin contains polyphenylsiloxane butanediamine resin direct synthesis and further comprises a copolymer of methyl methacrylate with methacrylic acid and solvent at the following sootnoshenie is relate methacrylic acid 13-29 Aluminum powder 12-18 Aerosil 3-7 Solvent 36-40
The paint is prepared as follows.In disolver download polyphenylsiloxane resin (TU 6-02-1-581-88) and include the stirrer. Then enter a copolymer of methyl methacrylate with methacrylic acid (TU 6-01-1305-85) and solvent (GOST 1.928-79). Everything is thoroughly stirred for 15 min and slowly DeGroat Aerosil A-300 (GOST 14922-77). Again stirred for 40 min to swell Aerosil, then slowly load aluminum powder (GOST 5494-71). Mixing of all components is carried out for 30 minutes, the Paint is ready to use. Paint Packed in cans, jars, drums. The paint is applied by electrodeposition, spray gun or a brush to clean and fat metal surface in one or two layers depending on the conditions.Examples of specific ratios of components are given in table. 1.In table. 2 shows the test results of the coatings based on different formulations of paint. As seen from the above table. 2 data are optimal compositions of paint (1-3) containing, by weight. polyphenylsiloxane resin 20-22; a copolymer of methyl methacrylate with methacrylic acid, 13-29, Aerosil 3-7, aluminum powder 12-18, solvent 36-40.Tested for resistance to alternating temperature also showed that the content in the paint polyphenylsiloxane resin in the amount of < 20% (composition 4) 2-3 cycle leads to peeling of the coating. With increased content polyphenylsiloxane resin, more than 22% (7) through 12 cycles of hardening in water is observed cracking, and at a temperature of 600aboutWith over 6 hours and alternating temperatures in the range -40aboutC to +550aboutWith over 8 cycles warping coverage.The optimum content of the copolymer of methyl methacrylate and methacrylic acid in the paint 13-29% of the solvent 36-40% As the increase of their content (compounds 9, 13), and the reduction of their content (compounds 8, 12) in 3-6 cycles, the impact of variable temperatures leads to peeling of the coating.After 4 h of incubation at a temperature of 600aboutSince there is peeling of the coating, if the content of the solvent does not match 36-40% (compounds 12, 13).Slight peeling of the coating through 5-9 calastia temperature 600aboutWith the warping. The introduction of Aerosil more than 7% (11) contributes to the viscosity of the ink, which leads to technological difficulties in obtaining paint with the desired parameters. In addition, after 8 h exposure to temperatures of 600aboutWith the coating peeling, and at alternating temperatures of the coating does not change the appearance and quality.When the content of the aluminum powder is above the upper limit (5) after 10-15 cycles of the alternating influence of temperature coating remains intact. But the increase in the content of the aluminum powder and the decrease of aerosol paint (part 10) leads to a decrease sedimentation stability (observed accelerated deposition of aluminum powder).The introduction of the aluminum powder is less than 12% (6) leads to peeling of the coating after 10 cycles quenching in water from a temperature of 550aboutS, through 8 cycles of alternating exposure to temperatures in the range -40aboutC to +550aboutWith the cracks, and temperature 600aboutC and 700aboutWith coatings cannot withstand. Temperature 700aboutWith no stand cover-based compounds 4, 6-13, and a temperature of 600aboutWith coverage on the basis of compounds 4, 6, 8, 9.In addition to the above D. what is cold or hot drying, when natural drying forms a beautiful silver decorative coating, hot decorative and heat-resistant.The application of paint eliminates the need for priming the protected surfaces other coating materials, delivered to the consumer in working process of painting the parameters applied in any way (brush, roller, spray gun). High specific volume resistance of paint (21073108smsm) allows you to apply it using the electroplating method on parts and products of all sizes and configurations. Heat-RESISTANT PAINT, including polyphenylsiloxane resin, aluminum powder and aerosol, characterized in that as polyphenylsiloxane resin it contains polyphenylsiloxane butanediamine resin direct synthesis and further comprises a copolymer of methyl methacrylate with methacrylic acid and solvent in the following ratio, wt.Polyphenylsiloxane butanediamine resin direct synthesis of 20 - 22
Copolymer of methyl methacrylate with methacrylic acid 13 29
Aluminum powder 12 18
Aerosil 3 7
The solvent 36 40
FIELD: building industry.
SUBSTANCE: invention relates to manufacturing acryl resins-base building composition materials used in internal and external finishing of compartments of industrial and civil designation, in particular, in making pouring flooring covers, protective and finishing materials and pouring compounds. Acryl composition for finishing works comprising a binding agent, quarts sand as a filling agent, plasticizing agent, hardening agent and water involves 40-60% aqueous dispersion of copolymer of butylacrylate, methylmethacrylate and methacrylic acid as a binding agent, tributyl phosphate as a plasticing agent, Portland cement M400 as a hardening agent and, additionally, it comprises acryl-urethane thickening agent of associative type "Polifob TR-117" wherein components are taken in the following ratio, wt.-%: 40-60% dispersion of copolymer of butylacrylate, methylmethacrylate and methacrylic acid, 15.0-30.0; acryl-urethane thickening agent of associative type "Polifob TR-117", 0.1-0.2; quartz sand, 35.0-50.0; tributyl phosphate, 0.15-0.25; Portland cement M400, 8-12, and water, the balance. The composition can comprise additionally pigment in the amount up to 11 wt.-%. Invention provides enhancing mechanical strength of cover, its adhesion to surface and decreasing water absorption.
EFFECT: improved and valuable technical properties of composition.
2 cl, 2 tbl
FIELD: chemical industry; polygraphy; methods of the stencil printing.
SUBSTANCE: the invention is pertaining to the paint suitable for the stencil printing inside the pressurized castings. The invention describes the paint suitable for the printing films made out of the transparent thermoplastic, consisting predominantly of: a) one or several pigments; b) the binding in the solution in c) the organic solvent or in the mixture of the organic solvents, d) the routine auxiliary materials, if it is desirable, at that as the binding use the copolymer of the poly-(metha)-acrylate containing (м1) from 50 up to 90 % to the mass of alkylmethacrtlate having from 1 up to 6 atoms of carbon in the ethereal radical; (м2) from 5 up to 25 % to the mass, at least, one vinylaromatic compound; (м3) from 1 up to 25 % to the mass of maleic anhydride, and if it is desirable, (м4) from 0 up to 5 % to the mass of the alkylacrylate having from 1 up to 6 atoms of carbon in the ethereal radical or the copolymer of the poly-(metha)-acrylamide containing polymethylmethacrylate with the degree of imidization from 65 up to 80 %, to 1 up to 15 mass % of methacrylic acid and from 1 up to 15 mass % of methacrylic anhydrade. At that the indicated copolymer has the softening temperature by VIKA (ISO 306 B) at least of 115°С. As the dissolvents use aliphatic, cycloaliphatic and aromatic hydrocarbons, ketones, esters, ethers, alcohols, phenoles or their mixtures. The invention also describes the film made out of the thermoplastic printed by the above described paint; the pressurized casting consisting of the film made out of the thermoplastic printed on the opposite side with the above described paint and supplied on this side with the layer of the thermoplastic coating. At that the indicated layer is applied by the operation of pressure die casting on the inside and at that the film and-or the plastic material for operation of the pressure die casting on the inside represents the copolymer of polymethylmethacrylate; and the method of production of the pressurized castings includes the following stages: a) stencil printing of the thermoplastic films by the above described method, b) the film molding, c) the pressurized castings on the inside on the stencil printed film side in the casting mould with the thermoplastic, and d) removal of the pressurized casting from the casting mould. The technical result of the invention: the paint is resistant to the action of the high pressures and temperatures during the operation of the pressurized casting on the inside, the image stencil printed by the paint has the stable color after long-term action of the atmospheric conditions.
EFFECT: the invention ensures, that the paint is resistant to the action of the high pressures and temperatures during the operation of the pressurized casting on the inside, the image stencil printed by the paint has the stable color after the long-term action of the atmospheric conditions.
6 cl, 1 tbl
FIELD: paint and varnish materials.
SUBSTANCE: invention describes a composition used in decorative finishing and comprising the following components, wt.-%: 20% solution of polymethylmethacrylate in dichloroethane as a film-forming agent, 20.5-23.25; aromatic solvent, 70.5-74.5, and aluminum powder modified with an organic dye by grinding, 4.25-5.0, taken in the ratio = 1:(0.005-0.008). The proposed composition provides decorative effect of cover mimic to mother-of-pearl with good adhesion of the composition on plastics of different chemical nature. Invention can be used in coloring plastics with imitation of mother-of-pearl, in particular, for national consumption goods.
EFFECT: improved and valuable properties of composition.
2 tbl, 2 ex
SUBSTANCE: proposed coating includes a lower layer of an aluminum alloy anodic oxide coating and an upper layer representing a thermo regulating paint coat comprising acrylate holmium-containing vanish "АКГ-1,2" (42-38 percent by weight) and oxide-modified zirconium (IV), 7-4 (58-62 percent by weight). The coating features low solar radiation absorption factor values (As ≤ 0,10-0,11) and high radiation factors (ε≥0,92-0,94). This allows reducing the radiator-emitter area which is particularly important in development of promising spacecrafts. Availability of two thermoregulating coatings, i.e. the anodic oxide and paint coatings allows a notable increase in service life of the said radiators and producing the said coatings on the surface of products made from aluminum or its alloys with lower As/ε parameter values and without drawbacks inherent in silicate coatings.
EFFECT: antirust protection of complicated-design structures and provision of preset thermal-and-radiation characteristics.
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.
SUBSTANCE: invention relates to adhesive lacquer for polyvinylchloride and can be used for depositing images on polyvinylchloride with subsequent deposition of coating varnish. The adhesive lacquer contains a synthetic resin - copolymer of methylmethacrylate with Tglass=124 °C and dynamic viscosity of the solution in toluene equal to 1500 mPa s, a volatile solvent - methyl ethylketone and toluene and an antistatic additive EFKA 6780 ("EFKA" Degussa).
EFFECT: reduced stickiness and increased binding power.
1 tbl, 4 ex
SUBSTANCE: acrylic paint composition in the first version contains an acrylic film-forming - acrylic organosoluble copolymer Polyform and a copolymer of p-butylmethacrylate with methylmethacrylate, silica filler, thickener - benton or pangel, plasticiser - phthalic ester, pigment and organic solvent. In the second version the acrylic paint composition contains an acrylic film-forming - acrylic organosoluble copolymer Polyform and a copolymer of p-butylmethacrylate with methylmethacrylate and additionally a polyorganosiloxane resin, silica filler, thickener - benton or pangel, plasticiser - phthalic ester, pigment and organic solvent.
EFFECT: improved physical and mechanical properties.
2 cl, 2 tbl
SUBSTANCE: acrylic lacquer contains an acrylic copolymer dispersion Primal AC-4800ER, a coalescent additive Nexcoat NX-795, a wax additive Aquacer 502, Orotan 681 dispersant, a polyurethane thickener Acrisol RM-2020, a neutraliser - 20% aqueous ammonia solution, an antifoaming agent Nopko NXZ, a preservative Kathon LXE and water.
EFFECT: with the given combination of components, the acrylic lacquer is characterised by good working characteristics and forms a high-lustre transparent coating on wooden articles.
2 tbl, 4 ex
SUBSTANCE: disclosed is a novel photopolymer acrylic oligomer-oligomer composition consisting of a bifunctional oligomer, an oligomer with functionality higher than 2, a monomer, a methyl methacrylate oligomer with molecular weight 20000-70000 and a polymerisation initiator, with the following ratio of components in pts.wt: acrylic bifunctional oligomer 15-95; acrylic oligomer with functionality higher than 2 15-70; acrylic monomer 0-25; methyl methacrylate oligomer with molecular weight 20000-70000 5-20; photopolymerisation initiator 0.1-1.0. Disclosed is a wear-resistant coating on organic glass, obtained via photochemically initiated three-dimensional radical polymerisation of the disclosed composition. Disclosed is a method of producing a wear-resistant coating on organic glass, involving a step for preparing a photopolymeric acrylic oligomer-oligomer composition and a step for curing thereof. The technical result is endowing resistance to formation of microcracks during ablation (silver resistance), low shrinkage and high adhesion to a coated substrate obtained via photopolymerisation of acrylic oligomer-oligomer compositions.
EFFECT: invention enables to obtain wear-resistant protective coatings on organic glass with surface hardness close to that of sapphire crystals.
7 cl, 6 tbl, 19 ex
SUBSTANCE: invention can be used in producing integrated microcircuits and other electronic devices which use a planar manufacturing technique based on photolithographic processes. The composition for photoactivated etching of silicon dioxide films includes a polymer base - polymethyl methacrylate, a photosensitive component - ammonium fluoride in trifluoroacetic acid solution, a solvent - acetone, a protophilic agent - diphenylamine.
EFFECT: invention simplifies the process of producing a photoetched pattern on a silicon layer, increases the rate of photoetching and significantly reduces defects in the obtained articles.
1 tbl, 4 ex