Copolymers with styrene (C08L9/06)

Electrically insulating composition // 2642567
FIELD: cable industry.SUBSTANCE: invention relates to the cable industry, namely to polymer electrical insulating compositions intended for use in cable structures, operated in conditions of increased fire hazard and low temperatures when exposed to diesel fuel and lubricating oils. Electrically insulating composition contains, by weight: copolymer of butylene phthalate and polybutylene glycol with butylenphthalate (50–95) wt % and polybutylene glycol (5–50) wt % – 20–90, polyethylene wax 1–5, high molecular weight polydimethylsiloxane 2–20, additionally contains aluminum hydroxide Al(OH)3 or magnesium hydroxide Mg(OH)2 100–200, copolymer of ethylene with octene, or ethylene with vinyl acetate, or copolymer of butadiene with acrylonitrile, or copolymer of styrene with butadiene 8–60, high-density polyethylene modified with maleic anhydride 2–20.EFFECT: technical result – invention makes it possible to provide a high degree of incombustibility, a lower rate of emission of smoke and hydrogen chloride during combustion in combination with increased resistance to diesel fuel and lubricating oils, as well as resistance to low temperatures.1 cl, 8 tbl, 4 ex
Rubber-based mixture and automotive tire // 2642072
FIELD: chemistry.SUBSTANCE: rubber-based mixture differs in that it contains at least the following components: from 5 to 100 phr of at least one polymer A of the following formula I): I) F-(P-Y-P-Sx)z-P-Y-P-F, where S is a sulfur atom, P is an elastomeric polymer chain obtained by the anionic polymerization of at least one diene with the conjugated double bonds, and optionally at least one vinylaromatic compound in the presence of two-functional initiator, Y is a dicarbanionic group obtained from the two-functional initiator, x independently is an integer for each group of Sx equal to or greater than 1, provided that at least for one of the group of Sx, x is selected from the numbers 2, 3, and 4, z is an integer from 1 to 160, each F independently is an end group selected from the group consisting of -H, -SH, -SOH, -SCl, -SSCl, -SO2H and -SO3H, and at least one filler.EFFECT: improved rolling resistance, improved wear properties, elasticity.12 cl, 1 tbl
Silicate acid-containing rubber mixtures containing ether of ώ-mercaptocarbonic acid with polyhydric alcohols // 2641128
FIELD: chemistry.SUBSTANCE: rubber mixture contains, in each case, at least, one rubber, one sulfur-containing alkoxysilane, one silicic acid-based filler, and one ether ω-mercapto-C2-C6-carboxylic acid with polyhydric alcohols. In addition, the rubber mixture contains, at least, one crosslinking agent, additional fillers, antioxidants, heat stabilizers, light stabilizers, antioxidants, flame retardants, plasticizers, and other auxiliaries. Rubber mixtures are produced by multi-stage mixing. The rubber mixture is preferably cured at a temperature of 100 to 200 °C. Vulcanizates are especially tires and tire parts.EFFECT: increasing the composition efficiency.15 cl, 2 tbl

Refractory polymer composition // 2640769
FIELD: chemistry.SUBSTANCE: invention relates to the refractory polymer composition suitable for use when applying the coating on the treated articles containing thermoplastic polymer containing vinyl acetate, and an unsaturated elastomer containing double bonds as polymeric components, where the polymer components are present in the form of a homogeneous polymer blend, and where a composite matrix is formed, vulcanized only with the use of sulfur or a crosslinking system containing sulfur, where the sulfur crosslinking system is distributed throughout the matrix and fully penetrates into the matrix, and at least one flame retardant or a combination of flame retardants. The invention further relates to articles obtained from such a composition and to composite elements coated with the composition as well as to the method for their preparation.EFFECT: producing compositions for protecting a dynamically tense component with a coating of this composition, so that the aggregate component is sufficiently refractory, in particular, complies with the standard for fire safety CEN TS 45545-2 without rendering noticeable adverse effects by the specified coating on the dynamic properties of the composite element during its service life.38 cl, 16 dwg, 5 tbl, 5 ex
Treated fillers, compositions containing them, and products made from them // 2640075
FIELD: technological processes.SUBSTANCE: process comprises of (a) treating a suspension, which includes an untreated filler, that is not pre-dried, using a treating agent, thereby making a suspension of the treated filler, and (b) drying the treated filler suspension to produce a treated filler. The treating agent contains a polymer that has (i) the first group, which interacts with a raw filler, and (ii) the second group, which interacts with the rubber matrix, which incorporates the treated filler.EFFECT: invention improves compatibility of the filler with the polymer matrix, improves the technological viscosity and prevents the phase separation of fillers with high specific surface area and of the polymer matrix that improves dynamic and mechanical properties of rubber tires of light vehicles and truck tires.25 cl, 25 tbl
Allylamine-containing polymers with end carbinol groups // 2640041
FIELD: chemistry.SUBSTANCE: copolymer of butadiene and styrene is provided, containing at the beginning of the polymer chains tertiary amino groups of the formula (Ia) or (Ib), where R1, R2 are the same or different and are alkyl radicals, and also contain silane-containing carbinol groups of the formula (III) at the ends of the polymer chains or their metal salts or salts of semimetals, where R3, R4, R5 and R6 are the same or different and are hydrogen or an alkyl, alkaryl and aralkyl radical, A is a divalent organic radical, which may contain, in addition to carbon and hydrogen atoms, heteroatoms such as oxygen, nitrogen, sulfur and/or silicon. A method of producing these copolymers and variants for their use, including for the production of tires and various shaped articles, are also provided.EFFECT: copolymer according to the invention is well-developed and allows the production of tires and moulded articles with the improved performance characteristics.22 cl, 2 tbl, 3 ex
Pneumatic tire // 2639464
FIELD: automotive engineering.SUBSTANCE: pneumatic tire has tread in which a vulcanized rubber composition is contained, comprising per 100 parts by weight of elastomer (phr) (wt % per 100 elastomer wt %): (A) from about 50 to about 90 phr polymerized in solution styrene-butadiene rubber having glass transition temperature (Tg) is from -65°C to -55°C; (B) (B) from about 50 to about 10 phr of polybutadiene, wherein cis -1.4 content is greater than 95 percent and Tg is from -80 to -110°C; and (C) from 30 to 80 phr combination of oil and terpene-phenolic resin, wherein Tg is over 100°C.EFFECT: improved wear resistance, rolling resistance and tire slippage on wet road.10 cl, 3 tbl

icrogel-containing protector mixture for winter tires // 2637906
FIELD: chemistry.SUBSTANCE: vulcanizable rubber mixture comprises, at least, the following components: 100 pts wt of the oil-free rubber matrix that contains a) 15 to 79 pts wt of L-SBR solution styrene butadiene rubber, which does not contain oil with a glass transition temperature Tg(L-SBR) in the range of -70 to -10°C, b) 20 to 75 pts wt of 1,4-cis-polybutadiene BR, which does not contain oil with a glass transition temperature Tg(BR) in the range of -95 to -115°C, c) 1 to 37.5 pts wt of natural rubber NR, oil-free and/or synthetic polyisoprene IR with a glass transition temperature Tg(NR) in the range of -50 to -75°C; hydroxyl group-containing microgel based on polybutadiene; hydroxyl group-containing oxide filler; polysulphide-containing alkoxysilane; a curing agent.EFFECT: invention makes it possible to increase the resistance to reversion during vulcanization of the rubber mixture, to produce a rubber mixture with optimum adhesion to ice-covered and snow-covered road, as well as low rolling resistance and high abrasion resistance.27 cl, 1 dwg, 55 tbl
ultilayer protective polymer-textile material based on butadiene-styrene thermoelastoplast // 2636500
FIELD: chemistry.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
Rubber mixture // 2635803
FIELD: chemistry.SUBSTANCE: mixture consists of a solution butadiene-styrene statistical rubber oil-filled with brand TDAE, normalized in content of polycyclic aromatic hydrocarbons, a smaller proportion of cis-butadiene rubber on a neodymium catalyst and a partial fraction of natural rubber of the STR brand, and includes a silicic filler with a specific surface of 165 m2/g, sulfur, a vulcanizing group, stabiliser-microcrystalline wax, antioxidants, a technological additive, a binding agent, hydrocarbon maleized resin and plasticiser oil.EFFECT: invention allows to provide better grip on a wet road with lower rolling losses and to obtain fuel-efficient tires.1 dwg, 3 tbl
Oil-and-petrol resistant rubber mixture // 2633892
FIELD: chemistry.SUBSTANCE: mixture contains butadiene-nitrile rubber SKN 4045, isoprene rubber SKI-3, methylstyrene rubber SKMS-30 ARC, cis-butadiene rubber, sulfur, dibenzthiazolyl disulphide, tetramethylthiuram disulfide, zinc oxide, anti-corrosion ZPR, stearic acid, acetonanil H, resin "Shinplast", bitumen oil, technical carbon H 220, talc, dibutyl sebacate.EFFECT: expanding the temperature range of the operability of rubber parts, increasing the resistance to repeated bending without disturbing the structure of parts, reducing the change in mass of oil, oil and fuel environment while maintaining high tensile strength and elongation at break.2 tbl
Sulfur cross-linked rubber mixture and pneumatic automotive tire // 2632242
FIELD: automotive engineering.SUBSTANCE: rubber mixture contains at least the following constituents: 60 to 100 parts of at least one butadiene rubber per 100 parts of rubber and 51 parts or more of at least one hydrocarbon resin per 100 parts of rubber which consists of aromatic monomers in 30-100 wt %. The automobile tire contains a rubber mixture, at least in the tread.EFFECT: improvement of tire performance due to the dependence of the rolling resistance properties of the tire on the adhesion properties of the tire to the wet road surface, while improving or maintaining the discontinuous properties.10 cl, 1 tbl

Rubber mixture for tire treads // 2630800
FIELD: chemistry.SUBSTANCE: described the rubber mixture as one of the versions, containing the rubber component and the filler, for which the peak temperature on the temperature curve tanδ is -16.0°C or higher and -6.0°C or lower, the value of tanδ in the peak position is more than 1.13, tanδ at 0°C is 0.95 or more and the value, obtained by dividing the absolute value of the difference between the values of tan δat -5°C and tanδ at 5°C by the temperature difference between -5 and 5°C {|(tanδ at -5°C)-(tanδ at 5°C)|/10} (/°C) is less than 0.045/°C. The invention also relates to the rubber mixture embodiment, containing the rubber component and the filler, including at least two types of styrene-butadiene copolymer rubber, differing in bound styrene content, and the filler. The indicated mixture is the rubber compound for tire treads in which the difference between the bound styrene St (A) content in the styrene-butadiene copolymer rubber (A), having the high bound styrene content and the bound styrene content St (B) in the styrene-butadiene copolymer rubber (B), having the low bound styrene content, {St(A)-St(B)} is 6-22 wt % and tanδ of which at 0°C is 0.95 or more, and the value obtained by dividing the absolute value of the difference between the tan valuesδ at -5°C and tanδ at 5°C by the temperature difference between -5 and 5C° {|(tanδ at -5°C)-(tanδ at 5°C)|/10} (/°C) is less than 0.045/°C.EFFECT: invention provides the rubber mixtures production for tire treads, corresponding to higher requirements for low heat generation and wet braking efficiency.11 cl, 1 tbl, 1 dwg, 6 ex

Rubber composition for use in the tire protector // 2627853
FIELD: chemistry.SUBSTANCE: rubber composition contains: per 100 wt parts of diene rubber containing 40 wt % or more of butadiene rubber and styrene-butadiene rubber, from 80 to 150 wt parts of silica having a specific surface area of CTAB from 150 to 250 m2/g, a silane compound containing a long chain alkyl group in an amount of 1 to 10 wt % of the amount of silica. The styrene component in the diene rubber is from 15 to 20 wt %, and the vinyl component in the diene rubber is from 18 to 28 wt %. The average temperature of the vitrification of diene rubber is -55°C or lower.EFFECT: invention makes it possible to improve performance on ice, characteristics on wet surfaces and durability before or above traditional levels.5 cl, 1 dwg, 3 tbl

Styrene-butadiene rubber with high conent of styrene and vinyl units and its production methods // 2626320
FIELD: chemistry.SUBSTANCE: invention relates to styrene-butadiene rubber based on solution with high content of styrene and vinyl units (SSBR) and to its production method. Method of polymerizing a polymer containing monomeric units obtained from a styrene monomer and a 1.3-butadiene monomer is disclosed. Polymerization of the monomeric units is carried out in the presence of an initiator, the first polar agent and the second polar agent. The first polar agent comprises the following structure (I): R1'R2'N-Q-NR3'R4'. The second polar agent comprises the following structure (II). The polymer has a glass transition temperature between -50°C and 20°C. The polymer obtained by the mentioned method is described as a composition comprising such polymer and an article comprising at least one component formed from such composition.EFFECT: providing SSBR with high content of styrene and vinyl units with significantly narrowed range of the molecular mass distribution and increased activity of polymer chain at the end of polymerization.18 cl, 4 dwg, 9 ex
Polymer composition // 2625858
FIELD: chemistry.SUBSTANCE: rubber mixture contains the components at the following ratio, wt %: synthetic isoprene rubber 18.7-24.021; synthetic butadiene rubber 6.005-7.547; synthetic rubber butadiene styrene 18.02-18.87; zinc oxide 1.802-1.887; sulfur technical 0.601-0.943; sulfenamide C 0.300-1.132; stearic acid 1.201-1.132; technical carbon P234 6.005-7.547; technical carbon P514 22.64-24.02; glass of ground fraction 50-100 microns 5.660-6.005; a mixture of fullerenes of fraction C50-C92 0.001-0.015; acetononyl H 1.132-1.201; wax VIZ 1.802-1.887; oil for oil PN 3.003-3.019; bitumen petroleum alkaline 6.005-7.547.EFFECT: invention allows to manufacture specialty rubber products with high frictional resistance, with improved physical and mechanical characteristics and the ability to work in aggressive environments.2 tbl, 3 ex
ethod of epoxidation of butadiene-styrene rubber // 2623274
FIELD: chemistry.SUBSTANCE: epoxidation process for butadiene-styrene rubber involves the treatment of a butadiene-styrene copolymer solution with a monobasic carboxylic acid containing from 1 to 3 carbon atoms and hydrogen peroxide with a monobasic carboxylic acid/hydrogen peroxide molar ratio of greater than 1, forming an in situ epoxidizing agent.EFFECT: invention avoids gelling, makes it possible to simplify the method.14 cl, 1 tbl, ex 4
Stabilized polyvalent initiators for anionic polymerization and methods for preparation of these initiators // 2621713
FIELD: chemistry.SUBSTANCE: invention relates to stabilized solutions of polyvalent anionic polymerization initiators, and methods for continuous production of polydienes or polydiene copolymers. The stabilized anionic polymerization initiator solution composition contains: i. extended chain initiator defined by the formula wherein SOL is a bivalent solubilizing component, x is an integer of 1 or more, Q represents (a) a member selected from the group consisting of O, S, N, P and Si, or (b) a multivalent organic group, and R1, R2, R3 and R4 independently represent a monovalent organic group or R1 is connected to R2 to form a trivalent organic group and/or R3 is connected to R4 to form a trivalent organic group, or an extended chain initiator defined by formula wherein each SOL independently represents a divalent solubilising component, x is an integer of 1 or more and R14, R15 and R16 each independently represent a divalent organic group; and ii. aliphatic solvent, cycloaliphatic solvent or a mixture of these solvents. A method for continuous production of polydienes or polydiene copolymers include: i continuous supply of a conjugated diene monomer into the reactor, optionally together with a monomer copolymerizable with the said diene monomer; and ii. continuous supply of a stabilized solution of the elongated chain initiator into the reactor.EFFECT: obtaining of multivalent lithiated initiators, stable in aliphatic or cycloaliphatic solvents and remaining stable during polymerization, including continuous polymerization and polymerization conducted at elevated temperatures.20 cl, 5 tbl, 6 ex

Synthetic raw elastomeric compositions in free-flowing pellet form and process for obtaining same // 2614678
FIELD: chemistry.SUBSTANCE: invention relates to an elastomeric composition in free-flowing pellet form for production, storage and use. Raw elastomeric composition in free-flowing pellet form contains raw elastomer with molecular weight from 50,000 to 400,000 Da and 1–15 wt% of total weight of an anti-adhesive, containing inorganic filler. Inorganic filler materials are contained in composition in combination with a compatible emulsifier, capable of forming an emulsion in water. Raw elastomeric composition in free-flowing pellet form can be used as an adhesive composition when modifying asphalt and asphalt emulsion.EFFECT: invention improves efficiency of storage, application and use in production and processing of elastomer composition, enhances mechanical properties of modified asphalt.25 cl, 3 dwg, 7 tbl, 4 ex
odified rubber mother batch, and rubber mixture and vulcanized rubber made therefrom, and methods of their production // 2608764
FIELD: rubber industry.SUBSTANCE: invention relates to modified rubber master batch and its preparation method, rubber mixture, made from it, and vulcanized rubber and method of their production. Modified rubber mixture consists of non-cross-linked rubber and synthetic particles and/or natural rubber, having radiation cross-linked structure, dispersed in it, with average cross-linked rubber particles size from 20 to 500 nm and gel content of 60 wt% or more. Non-cross-linked rubber is styrene-butadiene rubber. Weight ratio of rubber particles, having radiation cross-linked structure, to non-cross-linked rubber ranges from more than 20:80 to less than or equal to 80:20. Rubber mixture contains mixture of modified rubber component and base rubber, in which modified rubber mother batch is present in amount from 1 to 70 weight parts per 100 weight parts of base rubber.EFFECT: invention allows to reduce rolling resistance, increase slippage resistance on wet road and increase vulcanized rubber mixture wear resistance.15 cl, 16 tbl, 13 ex
Rubber mixture, preparation method thereof and cured rubber produced therefrom // 2607581
FIELD: rubber industry.SUBSTANCE: invention relates to rubber mixture, method of its production and cured rubber from it. Rubber mixture contains non-crosslinked rubber and rubber particles, having radiation cross-linked structure, dispersed in it. Particles of rubber, are particles of synthetic rubber and/or natural rubber particles with average particles size from 20 to 500 nm and content of gel of 60 wt%. or more. Non-crosslinked rubber is butadiene-styrene rubber. Weight ratio of rubber particles, having radiation cross-linked structure, and non- cross-linked rubber ranges from 1:99 to 20:80. Rubber mixture is produced by mixing of components, containing non- cross-linked rubber latex and rubber particles latex, having radiation cross-linked structure, and their subsequent coagulation. Rubber particles latex, having radiation cross-linked structure, is rubber latex after radiation cross-linking.EFFECT: invention allows to improve rolling resistance, resistance to slipping on wet road and wear resistance of cured rubber from rubber mixture.10 cl, 9 tbl, 5 ex

Rubber mixture and pneumatic tire // 2605250
FIELD: rubber industry.SUBSTANCE: invention relates to rubber mixtures and pneumatic tires, produced from them. Rubber mixture contains for 100 wt% of rubber component at least 35 wt% of butadiene-styrene rubber, conjugated diene polymer and silicon dioxide with specific surface area, measured from nitrogen adsorption from 40-400 m2/g. Conjugated diene polymer is produced by monomer component polymerization, including conjugated diene compound, and silicon-containing vinyl compound, in presence of polymerization initiator of formula (I):with production of copolymer. Then interacts with compound, containing at least one atom of nitrogen atom and/or silicon atom, with copolymer active terminal group. Rubber mixture contains: conjugated diene polymer from 1 to 90 wt%; rubber based on polyisoprene from 0 to 40 wt% per 100 wt% of rubber component; silicon dioxide from 10 to 150 wt%. per 100 weight parts of rubber component.EFFECT: invention allows to obtain rubber mixture, which enables to achieve balanced improvement of processability, fuel saving, rubber strength, resistance to abrasive wear, gripping with wet road surface and driving stability properties.17 cl, 25 tbl, 213 ex

ethod of extracting butadiene-styrene rubber from latex // 2603653
FIELD: oil industry.SUBSTANCE: invention relates to petrochemical industry, in particular, to production of butadiene-styrene rubber obtained by emulsion (co)polymerisation, and can be used for extraction of rubber obtained by emulsion polymerisation from latex. Method of extracting butadiene-styrene rubber from latex, includes using N,N-dimethyl-N,N-diallylammonium chloride, poly-N,N-dimethyl-N,N-diallylammonium chloride as coagulants and sulphuric acid as an acidifying agent. Latex, before mixing with solutions of coagulants and acidifying agents, is treated with a constant magnetic field with intensity of 8.0-22.0·104 A·m-1 for 5-15 minutes at temperature 20-60 °C.EFFECT: proposed method enables to reduce consumption of coagulants, cost of products and water consumption of shops for separating rubber from latex; enables to obtain a product with improved physical and mechanical properties; reduces environmental load in region.1cl, 7 ex, 3 tbl, 1 dwg

Rubber mixture based on butadiene-methylstyrene rubber // 2603366
FIELD: rubber industry.SUBSTANCE: invention relates to rubber industry, in particular to development of rubber mixture based on butadiene-methylstyrene rubber, products from which are characterized by higher heat and fire resistance. Rubber mixture based on butadiene-methylstyrene rubber contains curing agent, mixture of curing accelerators, zinc oxide, organic curing activator, modifying additive and filler, wherein as mixture curing accelerators mixture of dibenzothiazyl disulfide and diphenyl guanidine is used, and as modifying additive is pre-treated with aniline pearlite in following ratio of components, wt. parts: butadiene-methylstyrene rubber - 100.0; sulphur - 2.0; zinc oxide - 5.0; stearic acid - 2.0; dibenzothiazyl disulfide - 1.5; diphenylguanidine - 0.3; technical carbon P324 - 40.0; said pearlite - 10.0.EFFECT: invention enables to produce vulcanizate based on butadiene-methylstyrene rubber, having higher heat- and fire-resistance.1 cl, 2 tbl

Rubber mixture based on butadiene-methylstyrene rubber // 2603365
FIELD: rubber industry.SUBSTANCE: invention relates to rubber industry, in particular to development of rubber mixture based on butadiene-methylstyrene rubber, products from which are characterized by higher heat and fire resistance. Rubber mixture contains butadiene-methylstyrene rubber, curing agent, sulphur, mixture of curing accelerators, zinc oxide, organic curing activator, stearic acid, modifying additive and filler, technical carbon. At that, as mixture curing accelerators mixture of dibenzothiazyl disulfide and diphenyl guanidine is used, and as modifying additive is pre-treated with diethylene glycol pearlite in following ratio of components, pts. wt: butadiene-methylstyrene rubber - 100.0; sulphur - 2.0; zinc oxide - 5.0; stearic acid - 2.0; dibenzothiazyl disulfide - 1.5; diphenylguanidine - 0.3; technical carbon P324 - 40.0; said pearlite - 10.0.EFFECT: invention enables production of vulcanizate based on butadiene-methylstyrene rubber, having higher heat- and fire-resistance.1 cl, 2 tbl

Diene polymer and production method thereof // 2603167
FIELD: chemistry.SUBSTANCE: invention relates to a diene polymer, a method for production thereof, a polymer emulsion, a rubber mixture and pneumatic tyre. Diene polymer is obtained through radical polymerisation of a radical polymerisable monomer in presence of a polar functional group-containing thiol compound. Diene polymer contains a polar functional group at end of chain and has molecular weight distribution from 2 to 6 and peak molecular weight of 150,000 to 500,000. Polar functional group-containing thiol compound has formula (1)X-R1 -SH, where X is an ester group, hydroxyl group, carboxyl group, amino group or alkoxysilyl group and R1 is alkylene or arylene group which can have a substitute.EFFECT: invention improves processability of polymer, saves fuel and improves adhesion with wet road surface.9 cl, 4 tbl
Rubber compositions containing graphene carbon particles // 2602142
FIELD: chemistry.SUBSTANCE: invention relates to rubber compositions containing graphene carbon particles, and can be used, in particular, in tyre treads. Rubber composition contains a base composition of a rubber mixture which contains rubber, and an additive selected from process oil, antioxidants, vulcanising agents and metal oxides; as well as 0.1-20.0 wt% graphene carbon particles having 3D morphology and oxygen content less than 2 % atomic mass; and 1-50 wt% of filler particles. Rubber composition has surface resistivity less than 1010 ohm/m2.EFFECT: invention enables to reduce values of surface resistivity, improves operational characteristics of tyres.18 cl, 6 tbl

Tire which rolling surface contains emulsion butadiene-styrene rubber with high content of trans-links // 2596279
FIELD: chemistry.SUBSTANCE: invention relates to tire rolling surface which contains a rubber composition containing at least: from 35 to 65 phr emulsion butadiene-styrene copolymer "E-SBR" called the first diene elastomer, in which the share of butadiene links of trans-1,4 structure is more than 50 % of the weight of all butadiene links; from 35 to 65 phr polybutadiene (BR) as the second diene elastomer; optionally, from 0 to 30 phr another diene elastomer, referred to as the third diene elastomer; from 90 to 150 phr intensifying inorganic filler; plasticizing system containing: number A: in the interval between 10 and 60 phr, hydrocarbon resin, characterized by the Tg is more than 20 °C; quantity B: in the range between 10 and 60 phr, plasticizer and, liquid at 20 °C, Tg is less than -20 °C; provided that the total amount of plasticizers, a + B is between 50 and 100 phr.EFFECT: application of emulsion SBR and polybutadiene (BR) in combination with an inorganic filler and plasticizer for tire rolling surface enables to obtain improved adhesion with wet road and improved wear resistance, without deterioration of rolling resistance.11 cl, 2 tbl, 2 ex

Tire rolling surface which contains emulsion butadiene-styrene rubber with high content of trans-links // 2596278
FIELD: machine building.SUBSTANCE: invention discloses a bus, the rolling surface of which contains a rubber composition containing at least the following: from 40 to 100 phr emulsion butadiene-styrene copolymer "E-SBR", called first diene elastomer, in which the share of butadiene links structure TRANS-1.4 is more than 50 % of the weight of all butadiene links; optionally, from 0 up to 60 phr another diene elastomer, called second diene elastomer; from 90 to 150 phr intensifying inorganic filler; plasticizing system containing: number A: between 10 and 60 phr, hydrocarbon resin with Tg higher than 20 °C; b: between 10 and 60 phr, plasticizer, liquid at 20 °C, TG is less than -20 °C; provided that the total amount of plasticizers, a + B is between 50 and 100 phr.EFFECT: using this emulsion SBR in combination with high content of inorganic filler and plasticizer for tire rolling surface allows obtaining improved adhesion with wet road without deterioration of the rolling resistance.11 cl, 2 tbl, 2 ex

Trialkylsilyloxy-terminated polymers // 2596231
FIELD: chemistry.SUBSTANCE: present invention relates to polymers containing functional end groups, and their production. Method involves anionic polymerisation in solution, wherein one or more bis-(trialkylsilyl) peroxides (functional reagents) of general formula (II) where R1, R2, R3 may be same or different, and denote alkyl, cycloalkyl, or aralkyl, which may contain heteroatoms, such as O, N, S, Si, in form of pure substance, solution, or suspension, are added to polymers with reactive ends of polymer chains, selected from group of polybutadiene, polyisoprene, copolymer of butadiene and isoprene, copolymer of butadiene and styrene, copolymer of isoprene and styrene, or triple copolymer of butadiene, isoprene, and styrene.EFFECT: technical result is development of polymers with functional terminal groups of suitable steric screening for producing hydroxy-terminal polymers.5 cl, 2 tbl, 2 ex

Rubber composition and tyre made with said composition, and method of producing rubber composition // 2593305
FIELD: chemistry. SUBSTANCE: invention relates to rubber composition. Composition contains in 100 weight parts of rubber component at least 10 weight parts of polymer component (B) containing residual organic acid (A), added in the process of producing said polymer, and containing 5-90 weight parts of modified polymer (F) containing in its molecular structure modified part (E) capable to interact with the filler surface during mixing. Rubber composition also contains 10-150 weight parts reinforcing filler (C) and 6 weight parts or less than total amount of residual organic acid (A) and an organic acid (D) used in mixing for 100 weight parts of rubber component. EFFECT: invention reduces hysteresis losses composition, as well as reducing heat generation and improving tire abrasive wear resistance. 38 cl, 91 ex, 12 tbl

Rubber mixture // 2584012
FIELD: technological processes.SUBSTANCE: invention relates to production of rubber articles. Vulcanisable rubber mixture contains as vulcanisation accelerator product of reaction of known vulcanisation accelerators class sulfenamides with epoxy compounds in amount of 0.2-6.0 wt%. per 100 weight parts of rubber.EFFECT: improved resistance to vulcanisation and technological properties of rubber mixture while preserving physical and mechanical properties of rubber mixture vulcanisers.9 cl, 5 tbl, 2 ex

Vulcanisable rubber mixture // 2583962
FIELD: chemistry.SUBSTANCE: invention relates to production of rubber articles, particularly to compositions of vulcanised rubber mixture. Rubber mixture contains a product of reacting N-tertbutyl-2-benzothiazolyl sulphenamide and triglycidyl ether of trimethylol propane with content of epoxy groups of 7-16 % in amount of 3-16 pts.wt per 100 pts.wt rubber. Rubber mixture contains a rubber mixture of unsaturated synthetic rubber or mixture thereof with a natural rubber.EFFECT: invention reduces viscosity, reduces time of vulcanisation, improves resistance to vulcanisation of rubber mixtures and improves physical and mechanical properties of vulcanisers.5 cl, 4 tbl, 2 ex

Vulcanisable rubber mixture // 2574653
FIELD: chemistry.SUBSTANCE: rubber mixture includes unsaturated caoutchouc, a vulcanising group, white soot, stearin, zinc white, a product of interaction of methacrylic acid and trimethylolpropane triglycidyl ether with the content of epoxy groups of 9.7-18.4% in the quantity of 3-12 wt.p. per 100 wt.p. of caoutchouc.EFFECT: invention makes it possible to reduce the viscosity of the rubber mixture and increase the dynamic endurance of vulcanisates, which makes it possible to improve the technological properties of the rubber mixture and exploitation properties of the vulcanisates.7 cl, 5 tbl, 2 ex
Rubber mixture and tyre manufactured with its application // 2571135
FIELD: chemistry.SUBSTANCE: invention relates to rubber mixture and tyre. Rubber mixture contains caoutchouc component (H) with number average molecular weight higher than 130000 and polymer (B), obtained from polymer latex (A), prepared by emulsion polymerisation, with number average molecular weight 1000-130000. Component (H) contains polymer (D), obtained from polymer latex (C). Polymers (B) and (D) are used in form of mixture of latexes in rubber mixture. After that, drying and coagulation of mixture are carried out.EFFECT: invention makes it possible to increase processability and increase resistance to rubber mixture destruction.12 cl, 5 tbl
Rubber mixture // 2570448
FIELD: chemistry.SUBSTANCE: invention relates to rubber mixture, in particular for automobile tyres and various types of belts and hoses. Rubber mixture consists of, wt.p.: from 60 to 85 natural or synthetic polyisoprene; from 15 to 40 butadiene caoutchouc and/or butadiene caoutchouc, polymerised in solution, which has vitrification temperature lower or equal -55°C; from 5 to 15 of technological oil; from 15 to 75 of silicic acid; from 2 to 10 of phenolic acid and additional additives.EFFECT: invention makes it possible to reduce hysteresis, increase tensile strength with high level of resistance to rubber mixture cracking.13 cl, 1 tbl

Thermoplastic elastomer composition // 2570045
FIELD: chemistry.SUBSTANCE: invention relates to thermoplastic elastomer composition for sealing layer of pneumatic tyre. Thermoplastic elastomer composition contains (A) 100 wt pt of halogenated copoly(isoolefin-p-alkylstyrene) caoutchouc, (B) from 40 to 120 wt pt of polyamide resin and (C) from 0.5 to 10 wt pt of amine, containing, at least, one hydroxyl group. Amine (C) represents compound, described by formula (1): where R1 represents C1-30alkyl; R2 represents -(C2H4O)n-H, where n represents integer number in the range from 1 to 30; and R3 represents -(C2H4O)m-H, where m represents integer number in the range from 1 to 30, C1-30alkyl or hydrogen.EFFECT: invention makes it possible to improve fatigue life.11 cl, 3 tbl

Functionalised diene-based elastomer and rubber composition containing same // 2565706
FIELD: chemistry.SUBSTANCE: invention relates to a functionalised diene-based elastomer and to a composition based thereon. The functionalised diene-based elastomer is 75-95 wt % monofunctional elastomer which carries at one chain end a silanol functional group or a polysiloxane block with a silanol end without functionalisation at the other end, and 5-25 wt % of the elastomer is bonded or star-branched by tin.EFFECT: invention reduces cold flow without deterioration of processing properties and hysteresis properties.17 cl, 1 ex, 4 tbl

Rubber mixture based on butadiene-methylstyrene caoutchouc // 2558607
FIELD: chemistry.SUBSTANCE: rubber mixture based on butadiene-methylstyrene caoutchouc includes a vulcanising agent, a mixture of vulcanisation accelerators - dibenzothiazoledisulphide and diphenylguanidine, zinc oxide, an organic vulcanisation activator, a modifying additive - zirconium dioxide and filler with a component ratio, wt. p.: butadiene-methylstyrene caoutchouc - 100.0; sulphur- 2.0; zinc oxide - 5.0; stearic acid - 2.0; dibenzothiazoledisulphide - 1.5; diphenylguanidine - 0.3; technical carbon - 40.0; zirconium dioxide - 25.0-40.0.EFFECT: invention makes it possible to increase the heat- and fire resistance of vulcanisates with the preservation of high physical-mechanical indices.2 tbl

odified polymer compositions // 2558597
FIELD: chemistry.SUBSTANCE: invention relates to modified polymer compositions, used for manufacturing vulcanised compositions and products from them. Claimed composition, containing modified polymer, includes at least one branched modified polymer macromolecule, which contains at least one of structures ib; and at least one linear modified polymer macromolecule, which contains at least one of structures iib; where at least one branched modified polymer macromolecule and at least one linear modified polymer macromolecule each, independently, includes at least one amino group, selected from group, consisting of formulae (1A-1F) and their combinations.EFFECT: invention provides low hysteresis loss of cross-linked elastomeric compositions, tyre treads with low rolling resistance, good adhesion to wet, as well as icy road surface.17 cl, 19 tbl

odifier, method of obtaining modified polymer of conjugated diene with application of modifier and modified polymer of conjugated diene // 2543874
FIELD: chemistry.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
Bitumen composition (versions) and production method thereof // 2543173
FIELD: chemistry.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

ethod of moulding articles containing polybutadiene // 2542226
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

Silane-containing caoutchouc mixtures with functionalised in case of necessity diene caoutchoucs and microgels, method of obtaining and applying thereof // 2538883
FIELD: chemistry.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
ethod of producing modified conjugated diene rubber, modified conjugated diene rubber and rubber composition // 2531824
FIELD: chemistry.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
Anticorrosive composition and method of producing coatings based thereon // 2529545
FIELD: chemistry.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
Rubber mixture based on butadiene-methyl styrene caoutchouc // 2516644
FIELD: chemistry.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
ethod of producing filled butadiene-styrene rubber // 2515431
FIELD: chemistry.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
Butadiene-methylstyrene rubber based rubber mixture // 2507225
FIELD: chemistry.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
Oil-and-petrol resistant rubber mixture // 2507221
FIELD: chemistry.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.2 tbl
 
2551306.
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