Multilayer protective polymer-textile material based on butadiene-styrene thermoelastoplast
SUBSTANCE: material contains a base fabric impregnated with a polymer mixture including antimony trioxide, chloroparaffin HP-470, a pigment, and a mixture of nefras and ethyl acetate solvents. Herewith as a base fabric, it comprises a polyester or cotton polyester or polyamide or viscose-polyamide base weave. In addition, the material additionally contains an antistatic additive, the pigment Minatec 51 CM, and the polymer composition additionally contains butadiene-styrene thermoplastic elastomer, branched DST R 30-814 and DST R 30-00, polyvinyl chloride suspension grade PVC-C-70U, pigment organic varnish ruby SK of brand B, and a mixture of organic solvents of nefras and ethyl acetate.
EFFECT: production of a multilayer material based on butadiene-styrene thermoplastic elastomer with a high level of protective properties, simplification and reduction in the cost of manufacturing process.
1 tbl, 5 ex
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
SUBSTANCE: invention relates to the tyre industry, in particular to a method of obtaining a polymer base of a soaking composition for the tyre cord. Obtaining the polymer base of the soaking composition is performed in three stages: at the first stage latex of an inoculating butadiene-styrene-butylacrylate copolymer, containing in the main chain a copolymer of butadiene, styrene and butylacrylate in a ratio (13-45):(50-80):(5-12) respectively, is obtained. In the process of the copolymer obtaining a combination of anion-active surface active substances: sodium alkylbenzolsulphonate and sodium salt of sulphate of oxyethylated alkylphenol or oxyethylated fatty alcohol with a degree of oxyethylation 10-40 is applied. At the second stage of polymerisation butadiene, methacrylic acid, methacrylamide are inoculated to the main polymer chain in a ratio (93.0-97.5):(2-5):(0.5-2.0), respectively, with a ratio between the basic polymer and the total quantity of monomers being (20 - 35):(65 - 80). At the third stage butadiene-1,3, which has not reacted, is distilled with further bringing the polymer base to a value of pH 9.0-9.5.
EFFECT: invention makes it possible to obtain a universal, non-toxic, fire-safe highly adhesive polymer base for soaking the tyre cords of various makes in the absence of a leukanol disperser, producing a negative effect on ecology.
1 tbl, 8 ex
SUBSTANCE: invention relates to the field of production of composite protective rubberised materials used for manufacturing protective clothes, and respiratory protection equipment for people, including self-rescuers, breathing bags of isolating gas masks. A composite material contains chlorosulphonated polyethylene, polychloropren, kaolin, titanium dioxide, a nanodisperse filling agent montmorillonite, modified with quaternary ammonium salts, chloroparaffin-470, antimony trioxide, decabromodiphenyl oxide, magnesium oxide, zinc oxide, thiuram D, captax, rosin, benzene and ethylacetate mixture and polyether or cotton-polyether, or viscose-polyamide.
EFFECT: material possesses higher strength with simultaneous protection against action of toxic and aggressive chemical substances and open fire.
1 tbl, 3 ex
SUBSTANCE: composition contains low-molecular siloxane caoutchouc, ethylsilicate-40, octaphenyltetraasaporphyrinatocobalt(II) or octaphenyltetrapyrazinoporphyrazinatocobalt(II).
EFFECT: increase of covering stability to abrasion and its water-resistance.
SUBSTANCE: liquid low-molecular siloxane rubber-based composition for fire-resistant material also contains ethyl silicate-40 or tetraethoxy silane as a curing agent and a titanium-containing compound in form of alkoxytitanium borate, where the alkoxy groups are ethoxy, propoxy or butoxy groups.
EFFECT: composition having high stability and adhesion to synthetic fabrics, which increases fire-resistance and reduces hardness of material with a coating made from said composition.
SUBSTANCE: invention relates to an adhesive composition in form of an aqueous dispersion with content of solid substance from 1 to 50 wt %, as well as to a method of treating reinforcing layers with said composition, particularly a cord for tyres, and to a method of producing reinforced polymeric products by treating reinforcing layers. The adhesive composition contains: (a) 0.001-5 mol epoxide compound with molecular weight 50-290 in a form dissolved in water, per 1000 g of the overall composition, (b) 0.1-20 wt % completely or partially blocked isocyanate in form of a solid substance, (c) 0.1-40 wt % resorcin-formaldehyde latex in form of a solid substance and (d) water.
EFFECT: preparation of an adhesive composition which can be used in form of a single-step system, having good wettability and good adhesion, and high rate of reaction with non-activated fibres, particularly on polyethyleneterephthalate fibres.
15 cl, 1 ex, 2 tbl
FIELD: technological processes.
SUBSTANCE: invention is related to production technology of synthetic cord, in particular, to impregnation and thermal treatment of aramid cord, and may be used in tyre and rubber industry. Aramid cord of all brands is impregnated with latex-resorcin-formaldehyde or latex-resorcin-formaldehyde-soot compounds on the basis of latexes "ДБА"-1, "СКД"-1s and 5% solution of resin "СФ"-282, with concentration of 12-14%. Then cord is thermally treated to residual moisture of 0.5-1.0% at 120-140°C with load of 400-800 kg/cloth. Cord produced by this method is repeatedly impregnated and thermally treated according to the same modes.
EFFECT: simplified treatment of aramid cord; reduction of power inputs; improvement of its physical-mechanical properties and increase of operability of tyres and rubber items.
FIELD: fire-protection; oil-and-gas industries; petrochemical industry; production of the multilayer fire-protection materials.
SUBSTANCE: the invention is pertaining to the field of production of the multilayer fire-protection materials and may be used for manufacture of the special purpose fire-protective clothing for the workers acting in the highly inflammable aerosphere - the fire fighters, the employees of the refueling stations and in the oil-and-gas industries. The multilayer fire-protection material is made in the form of the packet containing the outer layer made out of the heat-resistant fibers, the intermediate thermo-insulating layer, the inner layer made out of the cotton fabric and the hydraulic insulating layer located between the intermediate thermo-insulating layer and the outer layer. The hydraulic insulating layer is made in the form of the polymeric composition consisting of (in mass shares): 60-75 - chlorosulfonated polyethylene, 25-40 - the chloroprene rubber, 5-100 - the mineral inactive filler, 0.5-15 - the fire-retardant agent, 1-10 - the vulcanization accelerators, 5-15 - the tri chloroethylphosfate and 200-400 - the dissolvent. As the mineral inactive filler may be used kaolin, as the fire retardant - antimony trioxide, as the vulcanization accelerator - magnesium oxide. As the dissolvent they may use the mixture of the butyl acetate and toluene taken in the ratio of 1:1. The produced multilayer fire-proof material has the high flame resistance and the flex stability, the low abradability of the hydraulic insulating layer and also stability of the vulcanization production process at the multilayer fire-protection material manufacture.
EFFECT: the invention ensures production of the multilayer fire-protection material, which has the high flame resistance, the flex stability, the low abradability of the hydraulic insulating layer and stability of the vulcanization production process at the multilayer fire-protection material manufacture.
5 cl, 1 tbl, 3 ex
FIELD: fire-protection; oil-and-gas industries; petrochemical industry; production of the multilayer fire-protection materials.
SUBSTANCE: the invention is pertaining to the field of production of the multilayer fire-protection materials and may be used for manufacture of the special purpose fire-protective clothing for the workers acting in the highly inflammable aerosphere - the fire fighters, the employees of the refueling stations and the oil-and-gas industry. The multilayer fire-protection material is made in the form of the packet containing the outer layer made out of the heat-resistant fibers, the hydraulic insulating layer, the intermediate thermo-insulating layer and the inner layer made out of the cotton cloth. The hydraulic insulating layer is applied on the outer surface of the outer layer and made in the form of the polymeric composition consisting of (in mass %): 80-95 - the chlorosulfonated polyethylene, 5-20 - the chloroprene rubber, 5-100 - the mineral inactive filler, 0.5-15 - the fire-retardant agent, 1-10 - the vulcanization accelerator and 200-400 - dissolvent. As the mineral inactive filler may be used kaolin, as the fire retardant - antimony trioxide, as the vulcanization accelerator - magnesium oxide. As the dissolvent they use the mixture of butyl acetate and toluene taken in the ratio of 1:1. The produced multilayer fire-protection material has the high flame resistance, the flex stability and the frost resistance, the reduced rigidity and high efficiency of manufacture.
EFFECT: the invention ensures, that the produced material has the high flame resistance, the flex stability and the frost resistance, the reduced rigidity and the high efficiency of its manufacture.
5 cl, 1 tbl, 3 ex
FIELD: rubber industry, in particular, processing of fibrous materials.
SUBSTANCE: method involves impregnating fibrous material with composition containing, per 100 weight parts of 2-chlorobutadiene rubber-based adhesive, 5-18 weight parts of chloropropene rubber of aniline production bottoms with aniline content of 5-18 weight parts; drying; encasing impregnated fibrous material with rubber mixture and curing.
EFFECT: increased strength of impregnated cord, enhanced adhesion with rubber and increased fire resistance, simplified method of processing fibrous material due to elimination of thermal processing stage.
2 tbl, 4 ex
SUBSTANCE: invention relates to a modifier, a method of obtaining a modified polymer and the modified polymer of a conjugated diene. The modifier for the polymer of the conjugated diene is obtained as a result of the complete condensation for a silicon-containing compound, which has a protected primary amino group and hydrolysable groups. The method of obtaining the modified polymer based on the conjugated diene includes a stage of modification and stage of the protection withdrawal. The tage of the protection is carried out after the completion of modification, and the used polymer based on the conjugated diene is preferably such that 10% of its polymer chains possess live and pseudolive properties.
EFFECT: modified polymer based on the conjugated diene is characterised by an excellent ability of small heat release and resistance to abrasion, which is used in a caoutchouc composition for the pneumatic tread.
13 cl, 4 tbl, 23 ex
SUBSTANCE: bitumen composition includes petroleum road bitumen BND 90/130, SKS-30ARKM-15 or SKS-30ARK rubber and polyethylene polyamine production wastes as an adhesive additive, with the following ratio of components, wt %: BND 90/130 bitumen - 83-93, SKS-30ARKM-15 rubber - 5-10 and polyethylene polyamine production wastes - 2-7 or BND 90/130 bitumen - 86-95, SKS-30ARK rubber - 3-7 and polyethylene polyamine production wastes - 2-7. The method of producing the bitumen composition is carried out by mixing bitumen while heating with a rubber-containing component and an adhesive additive, wherein the rubber is added in the form of 8-12% solution in an organic solvent, wherein the solvent used is hydrocarbons with final boiling point of no higher than 130°C. Preparation of the rubber solution in the solvent is carried out at 40-50°C while mixing for 5-6 hours. The obtained rubber solution and adhesive additive are then added to the bitumen. The mixture is homogenised for 3-4 hours while gradually raising temperature to 160-170°C. Further mixing is carried out until achieving 97% removal of the solvent. The remaining amount of solvent is removed by blowing with nitrogen.
EFFECT: obtaining a homogenous bitumen binder, having improved physical and mechanical properties.
4 cl, 2 tbl
FIELD: process engineering.
SUBSTANCE: invention relates to production of moulded articles containing polybutadiene and can be used in tire production as moulded strips for tire sidewalls or treads. Polybutadiene with content of cis-isomer over 95% and polydispersity lower than 2.5 is mixed with highly dispersed silicic acid and/or carbon black and with cross-linking agents, sulphur or sulphur donors, extra process additive and subjected to extrusion at 40-75°C.
EFFECT: higher quality of processing the mixes and quality of formed articles with lower rolling resistance and abrasion.
5 cl, 1 dwg, 2 tbl
SUBSTANCE: invention relates to silane-containing caoutchouc mixtures with functionalised diene caoutchoucs and microgels, to method of their obtaining and application in automobile tyres. Caoutchouc mixture, containing caoutchouc, functionalised with hydroxyl, and/or carboxyl groups, and/or their salts, contains caoutchouc from repeating units based on 1,3-butadiene and styrene and silane of the given formula. Caoutchouc mixture can contain styrene-butadiene gel with index of swelling in toluene 1-25 and size particle from 5 to 1000 nm.
EFFECT: invention makes it possible to obtain resistant to wet sliding and possessing low rolling resistance - resistance in the process of steering of automobile tyre-treads with high wear-resistance.
9 cl, 4 tbl
SUBSTANCE: method of producing conjugated diene rubber includes: (a) a step of reacting a first alkoxysilane compound whose molecule contains a group which can be converted to an onium ion by an onium ion generator, and an alkoxysilyl group which contains two alkoxy groups with a conjugated diene polymer which contains an active terminal atom of an alkali metal or an alkali-earth metal. The polymer is obtained by polymerising a conjugated diene compound and an aromatic vinyl compound to obtain a modified conjugated diene polymer which contains a group which can be converted to an onium ion, and an alkoxysilyl group, and (b) a step of mixing the obtained modified conjugated diene polymer with an onium ion generator and a second alkoxysilane compound whose molecule contains one alkoxysilyl group and one group which can be converted to an onium ion by an onium ion generator. The groups, which can be converted to an onium ion, in the first alkoxysilane and second alkoxysilane compounds are selected from a group of compounds.
EFFECT: reduced hysteresis loss and fuel efficiency in motor tyres.
7 cl, 4 tbl, 25 ex
SUBSTANCE: anticorrosive coating composition contains DST-30-01 thermoplastic butadiene-styrene, an oligomer and a solvent, wherein the oligomer used is triethylene glycol dimethacrylate, the solvent used is toluene, and the composition further includes a photoinitiator - 2,2-dimethoxy-1,2-(diphenyl)ethanone.
EFFECT: faster preparation of the coating composition and direct formation of an anticorrosive coating.
2 cl, 1 tbl
SUBSTANCE: rubber mixture based on butadiene-methyl styrene caoutchouc includes sulphur, diphenylguanidine, sulfene amide C, technical carbon, zinc oxide, stearic acid, as preservative and modifier of 2-(dimethylaminomethyl)-4-methyl-6-(1,7,7-trimethylbicyclo[2.2.1]hept-exo-2-yl)phenol 2-4 wt.p. per 100 wt.p. of caoutchouc.
EFFECT: invention makes it possible to increase confection adhesiveness with preservation of high stability to ageing of rubber mixture vulcanisate.
3 tbl, 1 ex
SUBSTANCE: invention relates to petrochemical industry, particularly production of butadiene-styrene rubber obtained by emulsion copolymerisation, and methods for filling thereof at a latex step, and can be used in producing industrial rubber articles. The method of producing filled butadiene-styrene rubber involves emulsion copolymerisation of butadiene with styrene in the presence of radical initiators, stoppering the process, degassing, adding an antioxidant and fibre filler - cotton, viscose, capron fibre or a mixture thereof, separating rubber from latex by coagulation in the presence of a coagulation agent and 2% sulphuric acid solution, washing and drying rubber crumbs. The fibre filler is used at the coagulation step in the composition of a compound coagulation agent consisting of 5-30% aluminium chloride solution, added in amount of 2.0-3.0 kg/t rubber, and fibre filler added in amount of 1.0-10.0 kg/t rubber.
EFFECT: method increases process efficiency, intensifies the rubber drying process, reduces consumption of the coagulation agent, stabilises the process of separating rubber from latex and reduces environmental pollution with products of producing rubber by emulsion copolymerisation.
1 tbl, 10 ex
SUBSTANCE: invention relates to the rubber industry and can be used in making industrial rubber articles. The butadiene-methylstyrene rubber based rubber mixture contains sulphur, diphenyl guanidine, a vulcanisation accelerator, technical carbon, zinc oxide, stearic acid, an anti-ageing agent and a modifier. The vulcanisation accelerator used is sulphenamide Ts, the anti-ageing agent and modifier are 2-(dibutylaminomethyl)-4-methyl-6-(1,7,7-trimethylbicyclo[2.2.1]hept-exo-2-yl)phenol.
EFFECT: high building tack while maintaining high ageing resistance of the butadiene-methylstyrene rubber based rubber mixture.
3 tbl, 4 ex
SUBSTANCE: invention relates to rubber industry and can be used in making wear-resistant rubber articles for construction purposes, operating in conditions of intense wear, low temperatures and aggressive media. The oil-and-petrol resistant rubber mixture contains butadiene-nitrile rubber BNKS-40AMN, isoprene rubber SKI-3, methyl styrene rubber SKMS-30 ARKM-15, sulphur, sulphenamide Ts, stearine, technical carbon P324, zinc oxide, regenerate RShT, thiuram D, kaolin, petroleum bitumen, naphtham-2, oil I-8A, N-nitrosodiphenylamine, and process additives - dispractol KS and a mixture of diphenyl carbonate and dimethyl carbonate resin DFK-1.
EFFECT: invention reduces the cost of the rubber mixture owing to use of cheaper process additives, and increases nominal tensile strength and breaking elongation, and reduces the abrasion index.
SUBSTANCE: invention relates to a film consisting of a mixture of a polyvinyl chloride polymer, a polyester and additives, thermoformed articles and a method of producing the film. The film from a mixture of vinyl chloride polymers includes 70-97 wt % of one or more vinyl chloride polymers with a coefficient K of 50-90, 2-25 wt % of additives selected from a group consisting of modifiers, high-molecular weight polymers, stabilisers, waxes, polymer anticaking agents, dye substances, plasticisers, auxiliary agents for improving processability and 0.1 wt % to less than 5 wt % polycrystalline or amorphous polyester with a crystallisation half-period in molten state of less than 5 min with respect to the total weight of the mixture of vinyl chloride polymers. The film is obtained by extruding or calendaring a plasticised mixture of vinyl chloride polymers, followed by optional treating in a built-in or self-contained process and optional thermoforming.
EFFECT: film has good thermoforming capacity and is suitable for packaging mass-production items.
19 cl, 2 tbl, 4 dwg