Silicon-containing compounds (C08K3/34)

Fluorinated polyamide composition with reduced combustibility // 2641931
FIELD: chemistry.SUBSTANCE: invention relates to low combustibility composite materials including a polyamide base and flame retardant, and can be used to produce moulded articles such as yarns, films and sheets, as well as cast-in-place moulds. The fluorine-containing polyamide composition with reduced flammability includes polyamide PA-6 and flame retardant. The flame retardant is montmorillonite represented by a mixture of two main fractions: 50-100 nm -10 wt %, less than 1 mcm - 80 wt %, less than 10 mcm - 10 wt % with a mixture of polyfluorinated alcohols adsorbed in an ultrasound field thereon. A mixture of polyfluorinated alcohols consists of 1,1,3-trihydroperfluoropropanol-1, 1,1,5-trihydroperfluoropentanol-1 and 1,1,7-trihydroperfluoroheptanol-1.EFFECT: increased duration of thermal protection effectiveness of the polyamide composition.2 ex
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
Fluorine-containing polyamide composition with reduced combustibility // 2637955
FIELD: chemistry.SUBSTANCE: composition includes PA-6 polyamide and a mixture of flame retardants consisting of antimony tris (1,1,7-trihydroperfluoroheptoxide) and mixtures of 1,1,3-trihydroperfluoropropanol-1, 1,1,5-trihydroperfluoropentanol-1 and 1,1,7-trihydroperfluoroheptanol-1, pre-adsorbed on montmorillonite, at a certain ratio of components.EFFECT: increasing the duration of thermal protection effectiveness of composites.3 ex
Thermoformable composition generally based on biological raw material and containers formed therefrom // 2637022
FIELD: biotechnology.SUBSTANCE: thermoformable composition comprises a) at least one poly-L-lactide containing less than 1 mol % of L-lactate units (PLLA) or at least one poly-L-lactide containing 1 to 5 mol % of D-lactic acid (PLA) units as a thermoformable resin, and b) an inoculating combination. The inoculating composition consists of α) 1 to 10 wt % of at least one poly-D-lactide containing less than 1 mole % of L-lactic acid (PDLA), units, based on the total amount of thermoformable resin a), as component α 1) or 0.5 to 5 wt % of PLLA/PDLA or PLA/PDLA stereocomplex crystallites, preferably at a molar ratio of 1:1, as component α 2), β) 0.1 to 25 wt % of an inorganic inoculating agent, preferably talc, based on the total amount of thermoformable resin α) and γ) 0.1 to 30 wt % of at least one inorganic filler with a layered structure, preferably a layered clay mineral, based on the total amount of thermoformable resin a) thermoformable, optionally biodegradable, containers based essentially on biological raw materials are obtained by formation from said thermoformable composition.EFFECT: invention allows to obtain thermoformable compositions that guarantee a crystallization rate ensuring the usual short processing times, production of food thermoformable containers that are characterized by high mechanical properties at high temperatures.13 cl, 2 tbl
Phenolformaldehyde binder and fibreglass on its basis // 2633717
FIELD: chemistry.SUBSTANCE: fibreglass includes a prepreg that uses fibreglass and a phenolformaldehyde binder that contains a resole phenolformaldehyde resin, which uses a highly concentrated condensation product of phenol and paraformaldehyde, an organic solvent used as acetone, and a novolac phenolformaldehyde resin. In addition, the binder further comprises pyrogenic silica and polycyclic amine, which is used as urotropine.EFFECT: reducing the heat generation during combustion, increasing the mechanical properties, viscosity control and reduction of gel time.3 cl, 3 tbl, 6 ex
ethod of obtaining polymeric compositions based on polytetrafluoroethylene containing mineral filler // 2632843
FIELD: chemistry.SUBSTANCE: method of producing polymer compositions based on polytetrafluoroethylene involves pre-dispersing the mineral filler phlogopite and magnesium spinel in a planetary mill. Further, subsequent ultrasonic treatment is carried out in an environment of ethyl alcohol at a volume power of ultrasound of 3000 W for 15 minutes. Then, the products are manufactured by cold pressing, followed by free sintering and cooling.EFFECT: use of the invention will reduce the rate of mass wear of the composite material up to 370 times and increase the relative elongation, and products based on it-the resource of machines and equipment.1 tbl, 1 ex

Silicone product, lighting device, containing silicone product, and method for silicone product manufacture // 2632840
FIELD: lighting.SUBSTANCE: silicone product contains light-transmitting polymeric material from the group of polysiloxanes, luminescent material and filler particles. The luminescent material contains particles with nanometer range size at least in one dimension in, quantum dots, quantum rods or quantum tetrapodes. The luminescent material is adapted to absorb the light of the first spectral range and convert a portion of the absorbed light into the light of the second spectral range. The filler particles are light-transmitting inert material, such as alumina, titania, silica or clay. The filler particles are miscible with the particles of the luminescent material and provided in said polymeric material. The luminescent material particles are distributed along the surface of the filler particles.EFFECT: increased efficiency of light conversion and lighting device efficiency.12 cl, 4 dwg, 1 ex

ethod of manufacturing high-dispersed hydrophobic magnetosensitive clay materials // 2630793
FIELD: chemistry.SUBSTANCE: to manufacture high-disperse hydrophobic magnetosensitive clay materials, a slurry of clay materials is prepared by mechanical stirring in water in the reactor. Salts of bivalent and trivalent iron and cationic surfactants are added to the reactor by stirring. Ultrasonic dispersing the resulting slurry is performed in the reactor, and an alkali solution is added to the reactor by stirring. Magnetic separation and purification of the resulting modified clay is carried out in a magnetic separator. The resulting modified clay is dried.EFFECT: invention allows to simplify the production of high-disperse hydrophobic magnetosensitive clay materials for the production of polymer composite materials with improved gas and vapour permeability characteristics.1 dwg, 1 ex
Insulating material // 2629175
FIELD: electricity.SUBSTANCE: insulating material includes suspension polyvinyl chloride (PVC), dioctyl phthalate (DOP), filler - chalk, a blend of stabilizers based on three-phase lead sulfate (TPLS), Bisphenol a and Epoxidized soybean oil (ESO), lubricants-stearic acid and calcium stearate, flame retardants-smoke suppressors of zinc borate and antimony oxide, as well as nanomodifier of montmorillonite clay.EFFECT: reduced flammability, smoke and hydrogen chloride when burning.2 tbl

Environmentally safe packing material based on polylactide // 2626022
FIELD: packaging industry.SUBSTANCE: packing material based on polylactide is created by mixing polylactide with dispersed filler SiO2 (aerosil) with a concentration of 1.9-2.1% by volume and a particle size of 12 nm. Mixing was carried out for 5 minutes at a temperature of 180°C. Further, the finished composition was placed in a hot press at a pressing temperature of 180°C and a pressing pressure of 15 MPa. The films were cooled for 1 min, then placed in a positive corona discharge field, charged at room temperature or at a temperature above the polylactide glass transition temperature for 5 min to a surface potential of 1.3-1.5 kV.EFFECT: production of active packaging on the basis of biodegradable materials with increased electret effect.4 dwg, 2 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
Rubber modifier and rubber mixture on its basis // 2625856
FIELD: chemistry.SUBSTANCE: modifier is obtained by the interaction of fullerenes of fraction C50-C92, indolyl-3-butyric acid, methylbenzene, dimethyl ketone, sulfuric acid, paraform. The resulting mixture of synthesis products is combined with wollastonite in a weight ratio of 10: 100 by mechanical stirring. The resulting modifier is used for making rubber compounds. Rubber mixture contains SKEPT rubber, vaseline oil, zinc oxide, oleic acid, wollastonite, peroximone F40, modifier and phthalocyanine pigment.EFFECT: invention allows to improve the complex of physicomechanical properties of the rubber compound.2 cl, 5 tbl
Production method of polyimide composite film coating reinforced by nanostructured silicon carbide (versions) // 2620122
FIELD: nanotechnology.SUBSTANCE: invention concerns the technology of nanocomposite production based on nanostructured silicon carbide with the polyimide matrix, which can be applied in various engineering fields, in particular, in the manufacturing of structural materials, used in the aviation and space industry, in the rocket engineering, electrical engineering, in cable industry and microelectronics. The essence of the invention consists in the preparation of the composite film coating, based on the polyimide matrix, reinforced with nanostructured silicon carbide, using the nanostructured unmodified or modified silicon carbide as the reinforcing element, which is introduced in the content with amount of 0.2-10 wt % from the resulting composite weight. The silicon carbide is introduced in the form of suspension in dry, polar, organic solvent. The modified silicon carbide is obtained by silicon carbide suspension processing at 100-150°C with chlorosilane. The silicon carbide suspension is stirred by means of ultrasound in the inert gas flow with the diamine, after which it is cooled up to 1-15°C and the dianhydride amount equimolar with respect to the diamine is added with stirring to the resulting reaction mass. The reaction mass is subjected to ultrasonic stirring, the resulting dispersion is applied to the substrate and dried by stepwise heating according to the specified scheme with following cooling.EFFECT: reduction of the energy intensity and the process duration.7 cl, 1 tbl, ex 4

Rubber mixtures // 2619696
FIELD: chemistry.SUBSTANCE: group of inventions can be used for the production of moulded items used in parts and elements of pneumatic suspensions, tires, tire treads, cable casings, hoses, drive belts, conveyor belts, tires, shoe soles and shock-absorbing elements. For obtaining rubber mixtures, at least one ACM polyacrylate rubber, at least one oxide or silicate filler or carbon black, at least one epoxysilane, crosslinking agents and vulcanisation accelerators are mixed. The epoxysilane is represented by the formula wherein X - OCH2CH3, RI represents a branched or unbranched, saturated or unsaturated, aliphatic, aromatic or mixed aliphatic / aromatic hydrocarbon group with two bonds and a C1-C30, which is optionally substituted, or an alkyl ether group with two bonds.EFFECT: increase of the dynamic properties of rubber mixtures.9 cl, 1 dwg, 8 tbl
Coated perlite flakes // 2619686
FIELD: metallurgy.SUBSTANCE: to produce coated perlite flakes, firstly, a tin oxide layer is applied on the perlite flakes. Then, a titanium dioxide layer is applied on perlite flakes with tin oxide coating. After this, an iron oxide layer is applied to the perlite flakes with titanium dioxide and tin oxide coating.EFFECT: invention provides for prodcution of pigment particles with high gloss effect without iron oxide peeling of the coating top layer of the said particles.27 cl, 7 dwg, 2 tbl, 8 ex
Thermoplastic rubber mixture // 2618751
FIELD: chemistry.SUBSTANCE: thermoplastic rubber mixture contains, in parts by weight: DST 30-01 thermoelastoplastic 99-101, Mivoll filler 03-96 0-31, P-514 technical carbon 2, PN-6Sh oil 4, SKD-O low molecular weight oligomer 29- 31, zinc stearate 1, and N atsetonanil 2.EFFECT: invention allows to improve the physical and mechanical properties of the rubber mixture, to increase the relative elongation indices, and to reduce the hardness.4 tbl
ethod for producing electrical insulating compound // 2617165
FIELD: electricity.SUBSTANCE: to produce electrical insulating compound, polyolefin - a high-density polyethylene, an inorganic filler with a polar surface - talc, flame retardants with a polar surface - decabromodiphenyl oxide (DBDPO) and antimony oxide, stabilizers with an apolar surface - calcium stearate and richnox 1010 are blended with the following ratio, wt %: 49.6-71.6 of high density polyethylene; 15.0-40.0 of talc; 7-9 of DBDPO; 3-4 of antimony oxide; 0.2 of calcium stearate; 0.2 of richnox 1010. The filler and flame retardants are previously dried at 105°C to completely dry state.EFFECT: invention provides for a homogeneous electrical insulating compound, to eliminate non-uniform mixing of polymer, filler and flame retardants.4 tbl, 2 ex
Stabilized high density polyethylene with improved resistance to damage and stabilizing system // 2615747
FIELD: chemistry.SUBSTANCE: invention relates to a high-density polyethylene composition for production of pipes or other products used in a piping system, having a resistance to damage in the presence of chlorinated and non-chlorinated water. The composition comprises multimodal high density polyethylene and a stabilizing system consisting of shielded phenol antioxidant, phosphonite or phosphine antioxidant, natural or synthetic hydrotalcite, and other optional additives.EFFECT: improved oxidative induction time, long term stability, the pipe moulded therefrom have a longer expected durability.10 cl, 5 dwg, 4 ex, 1 tbl
Priming enamel for protective anti-corrosion epoxy coating protective layer up to 500 microns, method for protective anti-corrosion epoxy coating formation, and product with protective anti-corrosion epoxy coating // 2613985
FIELD: chemistry.SUBSTANCE: priming enamel contains mass. p.: 100-110 of epoxy resin, 1-2 of organo-modified sepiolite, 110-115 of organic solvents mixture, 22-25 of plasticiser, 150-160 of filler, 27-35 of pigments, 2-4 of corrosion inhibitor, 8-12 of amine or phenol amine hardener.EFFECT: invention allows to increase the epoxy primer and enamel base and solvent mixture resilience, to reduce drying to a solid state and improve thixotropic properties of the epoxy priming enamel.19 cl, 1 tbl, 5 ex
ethod of producing impregnating composition based on modified bitumen used for surface treatment of asphalt-concrete coatings // 2610510
FIELD: roads.SUBSTANCE: invention relates to road construction and a method of producing compositions based on polymer-bitumen binders, which can be used for protection of road asphalt-concrete coatings from adverse effects. Method is implemented by forming a bitumen-polymeric petroleum mixture and introducing it with modifying additives and a petroleum solvent having the boiling point of 140 °C and higher. Modifying additives used are diatomite and a highly concentrated aqueous solution of potassium and/or sodium methyl siliconate, which are added to bitumen in quantities corresponding to the obtained composition containing 52–55 wt% of petroleum bitumen, 9.5–10 wt% of polymeric petroleum resin, 0–3 wt% of mineral oil, 0.1 wt% of diatomite, 0.1 wt% of the solution of potassium and/or sodium methyl siliconate and 35 wt% of the solvent. Herewith the bitumen heated up to 158–162 °C while stirring at the rate of 170–200 rpm is added with the polymeric petroleum resin, the mixture is heated up to 170–180 °C, and then cooled down to 110–120 °C and added with the solvent, the solution of potassium and/or sodium methyl siliconate and diatomite, after which the produced composition is cooled while stirring down to 25–35 °C and packed.EFFECT: technical result is improved operating properties of impregnating compositions.4 cl, 2 tbl, 4 ex
Curable compositions // 2607746
FIELD: chemistry.SUBSTANCE: invention relates to curable compositions of epoxy resin, suitable for making an insulator for a high-voltage gas-insulated switchgear. Invention includes (A) epoxy resin composition containing a mixture of: (A1) at least one solid epoxy resin, (A2) of at least one novolac epoxy resin, and (A3) at least one cycloaliphatic epoxy resin; (B) at least one anhydride hardener; (C) at least one filler; and (D) optionally at least one catalyst or at least one accelerator. Composition has a ratio of epoxy groups to anhydride groups from 1:0.75 to 1:0.85.EFFECT: invention increases mechanical strength and hardness of composition.14 cl, 1 tbl, 3 ex

ethod for production of rubber ionomers and polymer nanocomposites // 2601756
FIELD: chemistry.SUBSTANCE: invention relates to a method of producing rubber ionomers and polymer nanocomposites. Method of producing rubber ionomers involves steps of feeding into extruded unit concentrated liquid containing bromated rubber and a volatile compound, and a nucleophile containing nitrogen and/or phosphorus. Inside extruder unit there is partial reaction of bromated rubber with nucleophile and formation of rubber ionomers. Volatile compound is partially removed. Filler is added to obtain nanocomposites.EFFECT: invention enables to obtain rubber ionomers which do not contain water and solvents, as well as polymer nanocomposites using an energy-saving, environmentally friendly method.22 cl, 7 dwg, 1 tbl, 15 ex
Polymer composition // 2600048
FIELD: chemistry.SUBSTANCE: invention relates to polymer compositions based on polybutylene terephthalate (PBT) with high resistance to liquid aggressive media of polymer composite material and can be used in development of high-quality structural articles, as well as in motor industry, construction and other industries. Polymer composition contains 95.0 pts.wt polybutylene terephthalate, 1.0 pts.wt modified layered aluminium silicate montmorillonite, having hydrophobic properties, 3.5 pts.wt high-density polyethylene, that is, powdered polyethylene basic grade PEVP-276 0.179 with diameter 0.179; 0.126 and 0.071 mm, and 0.5 pts.wt stabilising additive Irganox-B 225. Mixture is extruded at temperature of 195-210 °C.EFFECT: articles made using composition are characterised by such vital physical properties, as yield strength of melt, modulus of elasticity, impact viscosity, deformation of destruction, dielectric permeability and tangent of angle of dielectric losses.1 cl

Pneumatic tyre with rubber component containing composite material from thermoplastic polymer and filler // 2597311
FIELD: machine building.SUBSTANCE: invention relates to a pneumatic tyre, comprising at least one component which contains a rubber composition. Rubber composition contains: diene-based elastomer and from 5 to 10 pts.wt per 100 pts.wt. elastomer of composite material in form of particles, containing ultra-high molecular weight polyethylene, silicon dioxide and network of interconnected pores, communicating throughout particulate composite, pores constituting at least 35 % by volume of composite.EFFECT: invention makes it possible to increase coefficient of friction without increasing wear of tyre tread.6 cl, 1 dwg, 7 tbl, 3 ex

Polymeric nanocomposition for effective protection against uv radiation // 2596041
FIELD: chemistry.SUBSTANCE: invention relates to polymeric nanocompositions intended for obtaining film materials that provide protection against UV radiation and photochemical ageing. Composition contains polyolefin or a olefin copolymer and UV-absorber. UV-absorber is nanosized silicon carbide that is single-phase polycrystalline and consisting of synthetic silicone carbide (SiC) with structure of moissanite polytype 6H with average particle size 34±3 nm in the amount of 0.1-1.5 wt%. Polymeric nanocomposition enables to obtain film materials with wide spectral range of absorption wave UV radiation (200-420 nm).EFFECT: dangerous UV radiation range (200-290 nm) is absorbed at 100-90 %.1 cl, 1 tbl

Rubber composition // 2595674
FIELD: rubber industry.SUBSTANCE: invention relates to rubber industry, in particular to production of rubber mixtures used for production of sealing elements used in production of packer-anchor equipment for oil and gas industry. Mixture contains a combination of hydrogenated butadiene-nitrile rubber and butadiene-nitrile rubber, zinc oxide, technical carbon N 220, technical carbon P 514, oligoester acrylates MGF-9 and TGM-3, herewith it additionally contains polymethylsiloxane liquid-200, "Shinplast" resin, rosil 175, deltagran HVA-2 70 GE, urotropine, resin SF-012A, acetonanil-H, irganox 1010, curing agent - novoperox TBK.EFFECT: technical result is improvement of properties of conventional tensile strength, tear resistance and hardness, high resistance of the rubber to ageing in aggressive hydrocarbon media at high temperatures.1 cl, 2 tbl, 3 ex

Polymer composition // 2588202
FIELD: chemistry.SUBSTANCE: invention relates to composite materials based on polyethylene terephthalate, meant for making single-layer containers in form of bottles and containers for different purposes, having improved properties of gas permeability. Invention is realised by modification of polyethylene terephthalate super concentrate, which in turn, has polybutylene terephthalate and clay organically modified by KATAPAV mixture and caprolactam.EFFECT: composite material has improved in terms of O2 and vapor permeability indicators.1 cl, 3 tbl, 6 ex

Nano-modified epoxy binder for composite materials // 2584013
FIELD: manufacturing technology.SUBSTANCE: invention relates to production of composite materials based on fibrous fillers and nano-modified epoxy binder and can be used in production of fiber glass tubes and other articles produced by winding and employed in heat networks, hot water supply systems with network water, water supply systems, with working temperature of up to 150 °C. Nano-modified epoxy binder for composite materials contains epoxy diane resin and amine hardener. Hardener is polyamine grade “Aramine-T”, which is modified aromatic polyamine. Composite material contains nano particles of silica type representing organophilic clay of “Monamet 1E1” grade, and carbon type nano particles representing carboxylated carbon nano tubes of “Taunit-M” brand, if necessary, it contains plasticiser-floatation agent oxal T-92, which is mixture of dioxane alcohols and their high-boiling ethers. Composite material contains active diluent, which is product of condensation of aniline and epichlorohydrin (epoxy aniline resin of EA grade). Above components are contained in composite material with following ratio (wt%): epoxy resin (4.12-72.44), nano particles of silica type (0.51-1.81), carbon type nano particles (0.02-0.45), plasticiser (0.0-0.56), active diluent (3.78-65.52), aromatic amine curing agent (22.69-28.1).EFFECT: reduced duration of curing, high heat resistance and strength characteristics of cured compositions, wider range of epoxide compositions with improved technological and operational characteristics.1 cl, 2 tbl, 1 ex

Light-converting composite polymer material for greenhouses // 2579136
FIELD: agriculture.SUBSTANCE: invention relates to agriculture, particularly to polymer composite materials for greenhouses. Light-converting composite polymer material contains a polymer matrix with dispersed therein red inorganic broadband luminophor, which has the formula: Lis(M(1-x)-Eux)1MgmAlnSipNq, where m = Sr, Ca, BA, taken separately or together, and where values of indices in elements of the compounds are as follows: 0.045 ≤ s ≤ 0.60, 0.005 ≤ x ≤ 0.12, 0 ≤ m ≤ 0.12, 0 ≤ n ≤ 1.0, 1.0 ≤ p ≤ 2.40, 3.015 ≤ q ≤ 4.20, with restriction concerning all compositions 2.0 ≤ p+n ≤ 2.40 and q ≠ 4. Proposed phosphor converts in red-orange phyto-active radiation within the 580-750 nm not only ultraviolet and, partially, blue-green radiation of sunlight.EFFECT: technical result consists in stimulation of growth and development of green plants.5 cl, 2 dwg, 2 tbl, 12 ex

Polyurethane-based binder for obtaining rods and cast moulds with application of isocyanates, containing uretonimine and/or carbodiimide group, mixture of moulding materials, containing said binder, and method for application of said binder // 2578603
FIELD: chemistry.SUBSTANCE: claimed invention relates to polyurethane-based binder with application of isocyanates, which contain uretonimine and/or carbodiimide groups for obtaining rods and cast moulds, to mixture of moulding materials, containing binder, and to method for application of binder for obtaining cast moulds. Described is binder for mixtures of moulding materials, which contains: (A) one or several polyol compounds, containing at least 2 hydroxy groups per molecule, including at least one phenolic resin as polyol compound; and (B) one or several isocyanate compounds, containing at least 2 isocyanate groups per molecule, including at least one isocyanate compound at least with 2 isocyanate groups per molecule, additionally containing at least one uretonimine group and/or carbodiimine group per molecule. Also described are: mixture of moulding materials, containing said binder and main heat-resistant material for moulds, and method for obtaining moulded product in form of cast moulds or in form of rod, including stages at which: (i) main heat-resistant materials for moulds are mixed with said binder; (ii) mixture of moulding materials or its ingredients are introduced into press mould; (iii) mixture of moulding materials is cured in press mould to obtain integral mould; and (iv) then cured mould is separated from press mould and optionally additionally cured, thus obtaining cured moulded product.EFFECT: provision of mixture of moulding materials, which makes it possible to obtain moulded products for foundry industry with lower emissions into the environment.22 cl, 5 tbl, 16 ex

Elastomer nanocomposites, nanocomposite compositions and methods for production thereof // 2576596
FIELD: chemistry.SUBSTANCE: invention relates to elastomer nanocomposites. Nanocomposite includes elastomer and modified nanofiller. Elastomer includes unis based on isoolefin monomers, containing from 4 to 7 carbon atoms, and polyolefin. Nanofiller includes layered clay and amine modifier. Nanofiller contains not more than 1.5 wt % of unbound amines. Before contact of elastomer and nanofiller unbound amines are removed from the latter.EFFECT: invention makes possible to obtain nanocomposite with improved characteristics with respect to processing with preservation of desirable impermeability characteristics.14 cl, 1 tbl

Polymer nanocomposite containing polylactic acid reinforced with modified phyllosilicate // 2575284
FIELD: chemistry.SUBSTANCE: polymer nanocomposite contains a polylactic acid-based polymer and a modified phyllosilicate composition containing a modifying agent, which includes hexadecyltrimethylammonium cations, which are intercalated between phyllosilicate layers. The composition additionally contains acetylcholine or choline cations as a modifying agent. The acetylcholine or choline is present in concentration of 0.10-1.00 and hexadecyltrimethylammonium ions are in concentration of 0.4-9.9 times the value of the cation-exchange capacity of phyllosilicate meq/100g.EFFECT: improved mechanical and insulating properties, as well as heat resistance of the nanocomposite.15 cl, 3 dwg, 3 tbl, 13 ex

odified phyllosilicate // 2575280
FIELD: chemistry.SUBSTANCE: invention relates to composition of modified phyllosilicate for reinforcement of polymers, which contains mixture of modifying agents, to method of thereof obtaining and thereof applications. Composition contains modifying agent, which includes hexadecyltrimethylammonium ions, intercalated between phyllosilicate layers, and additional modifying agent, selected from the group, consisting of acetylcholine and choline ions. Acetylcholine or choline is present in concentration, constituting 0.10-1.00 of value of phyllosilicate cation-exchange capacity (CEC) meq/100 g, with hexadecyltrimethylammonium ions being present in concentration, constituting 0.4-9.9 of phyllosilicate cation-exchange capacity value meq/100 g.EFFECT: claimed compositions possess improved thermal properties.22 cl, 4 dwg, 3 tbl

Rubber composition for tyres and studless tyre // 2568481
FIELD: chemistry.SUBSTANCE: invention relates to a rubber composition for tyres. The rubber composition for tyres consists of 100 pts.wt diene rubber (A), 30-100 pts.wt carbon black and/or non-black filler (B), 0.3-30 pts.wt cross-linkable oligomer or polymer (C), which is insoluble in diene rubber (A), and 0.1-12 pts.wt spatially cross-linked fine particles (D) with average particle diameter of 1-200 mcm.EFFECT: invention enables to obtain a studless tyre with excellent characteristics on ice and wear resistance.8 cl, 1 dwg, 3 tbl

Polymer-bitumen binder // 2562496
FIELD: chemistry.SUBSTANCE: invention relates to chemistry and petrochemical production and can be used in the construction and repair of roads, bridges and aerodromes as polymer-bitumen binder. The polymer-bitumen binder includes bitumen and a mastic compound containing asphalt, a 94-97% sulphuric acid solution and a mixture of diene hydrocarbons for producing butadiene and isoprene. The mastic compound additionally contains an aromatic extract of selective purification of oil distillates which, in a mixture with asphalt, forms an asphalt composition, components of which are taken in the following ratio, wt %: extract - 15-20, asphalt - the balance. The mastic compound additionally contains liquid polymethyl siloxane, with the following ratio of components, wt %: asphalt composition - 84-88, acid solution - 7-9, mixture of diene hydrocarbons for producing butadiene and isoprene - 3.5-6, liquid polymethyl siloxane - 1-2. The binder additionally includes the asphalt composition. Components of the polymer-bitumen binder are taken in the following ratio, wt %: mastic compound - 20-30, asphalt composition - 30, bitumen - the balance.EFFECT: reduced ageing of the road surface based on the polymer-bitumen binder and longevity.3 cl, 6 tbl

Elastomeric nanocomposites, nanocomposite compositions and methods for production thereof // 2561170
FIELD: chemistry.SUBSTANCE: invention relates to an elastomeric nanocomposite based on C4-C7-isoolefin, having improved operational characteristics and linking characteristics. The nanocomposite contains a copolymer formed from at least one C4-C7-isoolefin monomer and a multi-olefin monomer, and nanofiller containing smectite clay with a surfactant. The surfactant has the structure (R1R2R3R4)N+, wherein R1 denotes a link formed from benzyl, which may or may not be substituted, wherein R2 is selected from a group which includes C1-C26-alkyls, C2-C26-alkenes and C3-C26-aryls, and wherein R3 and R4 are identical or different and are independently selected from a group which includes C9-C26-alkyls, C9-C26-alkenes and C9-C26-aryls.EFFECT: obtained nanocomposites have improved mechanical and barrier properties when used in articles, where impermeability is required, such as the inner lining of tyres, chambers, tyre vulcanising diaphragms, hoses, medical stoppers, impermeable sheets and similar articles.13 cl, 2 tbl, 10 ex

Elastomeric nanocomposites with process oils added // 2559484
FIELD: chemistry.SUBSTANCE: method for producing an inner lining of a tyre involves contacting a functionalised poly(isobutylene-para-methylstyrene) elastomer with one or more sheet fillers, and then with one or more process oils and one or more solvents, precipitating a nanocomposite compound to produce a solid nanocomposite compound, which can be dried and additionally mixed with other applicable components, e.g. a vulcanising agent, thereby producing the inner lining applicable in tyres.EFFECT: invention enables producing the nanocomposite with improved properties to retain air with maintaining good elasticity and handling properties.15 cl, 4 tbl, 2 ex

Rubber composition and pneumatic tyre where said composition is used // 2559460
FIELD: chemistry.SUBSTANCE: rubber composition contains at least one diene elastomer, reinforcing filler, a cross-linking system and at least 10-150 pts.wt lamellar filler (per 100 parts elastomer) and 0.01-0.3 pts.wt metal salt. The composition also contains an additional elastomer with a high Tag, the glass transition point (Tg) of which is higher than -35° and which is selected from a group consisting of SBR, and epoxidated natural rubber, and mixtures of said elastomers. The invention also describes a pneumatic radial car tyre. The tyre consists of crown over the tyre tread, two inextensible shoulders, sidewalls and carcass ply. In said tyre, at least the protective elastomer layer consists of said composition and is placed at least in the area of the pneumatic tyre located between the tyre tread and the rim or between the rim and the carcass ply or on the carcass ply.EFFECT: invention relates to a rubber composition for making a protective elastomer layer with high air permeability, which can be used to make articles from rubber, for example pneumatic tyres.19 cl, 2 dwg, 6 tbl

Polyarylene ether ketone film // 2558576
FIELD: chemistry.SUBSTANCE: invention relates to polyarylene ether ketone film which can be used in various fields of technology, for instance, for obtaining flexible printed circuit boards. Moulding mass for film obtaining contains a) 60-96 wt. p. of polyarylene ether ketone, b) 2-25 wt. p. of hexagonal boron nitride, c) 2-25 wt. p. of talc, with the sum of weight components a), b) and c) constituting 100. Method of film manufacturing includes compounding by mixing said components in melt, melt extrusion by means of flat-slot device and strengthening formed by extrusion in form of cloth film by placement on chill rolls.EFFECT: obtained film demonstrates less shrinkage and has lower coefficient of thermal surface expansion.14 cl, 1 tbl, 1 ex

Liquid isocyanate composition // 2552980
FIELD: chemistry.SUBSTANCE: invention relates to a method of obtaining a liquid isocyanate composition, which is liquid at 50°C, for obtaining a polyurethane or polyurea material. The method includes the supply of, at least, one isocyanate component, clay nanoparticles and, at least, one polyol, which has terminal EO units. After that, in accordance with the claimed method the said isocyanate component and the said clay nanoparticles are combined. The said combination of the isocyanate component and clay nanoparticles is mixed for the time period in the range from 1 min to 10 h under high shear, involving shear rates higher than 1000 s-1, with the simultaneous support of the said combination temperature in the range from 25°C to 80°C. Then the said polyol, possessing the terminal EO units, is added to the said combination of the isocyanate component and clay nanoparticles, in such an amount that the ratio NCO/OH is in the range from 1500 to 1.5. The obtained combination of the isocyanate component, clay nanoparticles and polyol, possessing the terminal EO units, is mixed for the time period in the range from 1 min to 10 h under high shear, involving shear rates higher than 1000 s-1, with the simultaneous support of the said combination temperature in the range from 60°C to 100°C with obtaining the liquid isocyanate composition. The claimed method makes it possible to obtain a more stable dispersion of clay nanoparticles in isocyanate.EFFECT: invention relates to the liquid isocyanate composition, obtained by the said method, and to its application in obtaining polyurethane or polyurea materials.11 cl, 21 dwg, 3 tbl, 4 ex

Rubber mixture, containing blocked mercaptosilane binding agent // 2543883
FIELD: chemistry.SUBSTANCE: invention relates to a rubber composition, which does not contain zinc or contains less than 0.5 wt.p. of zinc, which can be used for the production of tyres. The rubber composition contains one diene elastomer; one cross-linking sulphur-based system; one inorganic filling agent as a reinforcing filling agent; one blocked mercaptosilane of the general formula (HO)3-nR1 n-Si-Z-S-C(=O)-A, where each of R1, which can be similar or different, represents a monovalent hydrocarbon group, selected from alkyls, linear or branched, cycloalkyls or aryls, containing from 1 to 18 carbon atoms; A represents hydrogen or a monovalent hydrocarbon group; selected from alkyls, linear or branched, cycloalkyls or aryls, containing 1-18 carbon atoms; Z represents a bivalent binding group, including 1-18 carbon atoms; n represents an integer number, equal to 0, 1 or 2.EFFECT: invention makes it possible to reduce the composition toxicity with the preservation of resistance to untimely vulcanisation.21 cl, 2 tbl, 3 ex

Caoutchouc composition, containing blocked mercaptosilane as binding agent // 2542228
FIELD: chemistry.SUBSTANCE: invention relates to a caoutchouc composition from diene caoutcoucs, which does not contain zinc or contains less than 0.5 wt.p. of zinc, counted per an elastomer, and suitable for manufacturing pneumatic tyres and tyre treads. The caoutchouc composition contains a diene elastomer, a cross-linking sulphur-based system, one inorganic filling agent as an active filling agent, a blocked mercaptosilane of the general formula (I): (R3O)R2R1-Si-Z-S-C(=O)-A, where R1 and R2, being similar or different, represent monovalent hydrocarbon groups, selected from linear or branched alkyls, cycloalkyls or aryls, containing 1-18 carbon atoms; R3 represents a monovalent hydrocarbon group, selected from linear or branched alkyls, containing 1-4 carbon atoms; A represents hydrogen or a monovalent hydrocarbon group, selected from linear or branched alkyls, cycloalkyls or aryls, containing 1-18 carbon atoms; and Z represents a bivalent binding group, containing 1-18 carbon atoms.EFFECT: invention makes it possible to reduce the toxicity of caoutchouc compositions and tyres made from them with the preservation of the caoutchouc compositions resistance to subvulcanisation.20 cl, 2 tbl, 3 ex

Rubber mixture and its application in pneumatic tyre // 2540629
FIELD: chemistry.SUBSTANCE: invention relates to field of technical rubber products and can be used for manufacturing pneumatic tyres. Rubber mixture contains rubber component and silicon dioxide, containing water, in which "CTAB" (m2/g) as specific surface in adsorption of cetyltrimethylammoniumbromide and "IB" as index of micropores in form of ink bottle in water-containing silicon dioxide satisfies certain dependence, and "loss on ignition" (wt %) as weight loss, when silicate-hydrate is heated at 750°C for 3 hours, and "loss on heating" (wt %) as weight loss, when silicate-hydrate is heated at 105°C for 2 hours, satisfy certain dependence.EFFECT: invention provides rubber mixture, capable of reaching good properties of rolling resistance and good wear resistance simultaneously when rubber mixture is applied on constituting element, for instance tyre tread.8 cl, 2 dwg, 5 tbl, 10 ex
Rubber mix for producing composite materials // 2539661
FIELD: chemistry.SUBSTANCE: invention refers to chemical engineering, particularly to producing rubber mixes of siloxane rubbers, and can be used for manufacturing electrical insulating tubes and insulated cable sheaths, polymer HV line insulators, fabricated rubber products and materials contacting petrols, organic solvents and mineral oils. The rubber mix contains a mixture of high-molecular dimethylvinyl siloxane rubber produced by polymerisation in the presence of an alkaline catalyst, and dimethyl siloxane rubber in a ratio of 50:50, aerosil, powdered quartz filler with the particle size of 1-5 mcm, potassium ferricyanide and Peroximone F-40 peroxide vulcanisate.EFFECT: rubber mix vulcanisates according to the invention in the form of the composite materials possess high flexibility, fire-resistance, mould fungi resistance, ozone resistance, solar radiation resistance, as well as working efficiency from minus 60°C to plus 155°.2 tbl

Composition of bimodal polyethylene for obtaining products by pressure moulding // 2534611
FIELD: chemistry.SUBSTANCE: invention relates to a bimodal polyethylene high-density composition for obtaining products by pressure moulding, in particular caps and plugging means. The composition includes bimodal high-density polyethylene, a composition of an inorganic alpha-nucleating agent, a composition of a friction-reducing agent, representing amide of primary fatty acid, and a composition with one or more additives, selected from antioxidants, acid acceptors, pigments and UV-stabilisers. The application of bimodal polyethylene in a combination with the inorganic alpha-nucleating agent, in particular, with talc and behenamide, as the friction-reducing agent, makes it possible to obtain the moulding composition with an unexpected and synergic impact on crystallisation temperature, and the composition friction coefficient.EFFECT: composition by the invention demonstrates higher crystallisation temperature and lower friction coefficient.14 cl, 5 tbl

Thermosetting epoxy resin composition and semiconductor device // 2528849
FIELD: chemistry.SUBSTANCE: invention relates to a thermosetting epoxy resin-based composition and a semiconductor device made using said composition. The composition contains (A) a reaction mixture of triazine-derived epoxy resin and acid anhydride with the ratio of the epoxy group equivalent to the acid anhydride equivalent of 0.6-2.0; (B) an internal parting agent; (C) a reflecting material; (D) inorganic filler; and (E) a curing catalyst. The internal parting agent (B) contains a carboxylate ester of general formula (1): R11-COO-R12 (1) wherein R11 and R12 denote CnH2n+1, where n is a number from 1 to 30, and a compound of general formula (2): wherein R1, R2 and R3 are independently selected from H, -OH, -OR and -OCOCaHb under the condition that at least one of R1, R2 and R3 includes -OCOCaHb; R is CnH2n+1 (in which n is an integer from 1 to 30), a ranges from 10 to 30, and b ranges from 17 to 61. The semiconductor device comprises a semiconductor element encapsulated a cured product of said thermosetting epoxy resin-based composition.EFFECT: invention enables to obtain a homogeneous product which retains whiteness, heat-resistance and light-resistance for a long period of time with reduced yellowing.8 cl, 12 dwg, 4 tbl

Direct filling // 2528845
FIELD: chemistry.SUBSTANCE: invention relates to a curing composition for producing electrically insulating structural material for electrical or electronic components. The curing composition contains epoxy resin, a curing agent and a filler composition. The filler composition contains wollastonite and amorphous silicon dioxide. The surface of one of the fillers is treated with silane. A cured product is obtained by curing said curing composition.EFFECT: invention enables to use said curing composition directly in the ceramic housing of a switching device and has high cracking resistance.9 cl, 3 tbl, 2 ex
etal wire insulating coating // 2524232
FIELD: chemistry.SUBSTANCE: coating comprises an adhesive sublayer of a thermoplastic adhesive and a functional layer of a nanostructured composite material based on polyethylene. The composite material of the functional layer has a polyethylene matrix and montmorillonite particles dispersed in the matrix in amount of 0.1-2 wt %.EFFECT: improved physical and mechanical properties of the coating.12 cl, 2 ex
Hnbr compositions with very high levels of content of filling agents, possessing excellent processability and resistance to aggressive liquids // 2522622
FIELD: chemistry.SUBSTANCE: invention relates to an elastomeric composition. The composition contains hydrated nitrile rubber and 250-350 parts of a filling agent per 100 parts of rubber. The filling agent is represented by carbon soot. Nitrile rubber has Mooney viscosity below 55.EFFECT: invention makes it possible to improve processability with high content of the filling agent and demonstrates good resistance to aggressive liquids and fuels.8 cl, 2 tbl

Automobile material with excellent fluid flow characteristics, high rigidity, excellent plasticity and low coefficient of linear thermal expansion (clte) // 2520448
FIELD: chemistry.SUBSTANCE: composition for manufacturing an automobile material with a melt flow rate MFR2 (230°C) in the range from 10 to 50 g/10 min, which contains two heterophase polypropylenes, including a propylene homopolymer-based matrix and elastomer copolymer, plastomer and a mineral filling agent. Heterophase polypropylenes possess different rates of melt flow: the first heterophase polypropylene with a melt flow rate MFR2 (230°C) in the range from 3.0 to 30.0 g/10 min and the second heterophase polypropylene with weight content of substances soluble in cold xylol (XCS) in the range from 7.0 to 20.0%.EFFECT: invention makes it possible to obtain the composition, possessing sufficient rigidity, plasticity and a high melt flow rate.17 cl, 2 tbl
 
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