Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen and compositions of derivatives of such polymers (C08L27)

C   Chemistry; metallurgy(318327)
C08L27                 Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; compositions of derivatives of such polymers(1250)
Anti-corrosion coatings // 2641750
FIELD: chemistry.SUBSTANCE: described curable compositions comprise a polybenzoxazine component, a polyamine component, and a fluoropolymer component. The fluoropolymer component used is selected from fluoroolefin (co) polymers, perfluoroolefin (co) polymers, (co) polymers of perfluoroalkylvinylethers and (co) perfor alkoxyvinyl ether polymers.EFFECT: invention provides protection against corrosion of substrates under the influence of high temperatures.14 cl, 3 tbl, 3 ex

ethod of producing composite materials as polymer matrices filled with nanoparticles of metal oxides with modified surface // 2638658
FIELD: chemistry.SUBSTANCE: for the production of composite materials, the surface of the original BaTiO3 nanoparticles is preliminarily activated by the application of hydroxyl groups by boiling in a hydrogen peroxide solution and modified with cationic surfactant molecules by treatment with a solution of a cationic surfactant at a concentration below the critical micelle concentration. The resulting precipitate is filtered, washed from the cationic surfactant unbound to the surface of the metal oxide nanoparticles, and dried. The nanoparticles BaTiO3 with a modified surface are introduced into the polymer solution, achieving the desired volume ratio of the filler and the polymer matrix, and subjected to ultrasonic dispersion.EFFECT: simplification of the method of producing composite materials in the form of polymer matrices filled with nanoparticles of oxide ferroelectrics with a modified surface, allowing to reduce the degree of aggregation of nanoparticles in the polymer.3 dwg
ethod of producing composition for hardly combustible plasticate // 2637951
FIELD: chemistry.SUBSTANCE: mixing of polyvinyl chloride, dioctyl phthalate, calcium stearate, tribasic lead sulfate, epoxy resin, diphenylolpropane, adding trichloropropyl phosphate, and carbon black K-354 is carried out. Mixing of the mixture components is carried out under normal conditions, the composition is prepared by swelling the resulting mixture for 5 hours at 80°C and the addition of butadiene-nitrile rubber BNKS-33. The plasticate is produced by extruding and granulating the resulting composition.EFFECT: increasing the fire resistance of the plasticate while maintaining its strength characteristics.1 tbl, 5 ex
Composition for oil-and-petrol resistant plasticate // 2637950
FIELD: chemistry.SUBSTANCE: composition for the cable plastic compound contains the components at the following ratio, pts wt %: polyvinyl chloride emulsion EP 6602-C (100.0); epoxy resin ED-20 (10.0); dioctyl phthalate (55.0); tribasic lead sulfate (2.0); calcium stearate (2.0); butadiene-nitrile rubber BNKS-33 (35.0); wood meal pretreated with a 10-20% aqueous solution of TSF (5.0-10.0).EFFECT: increase the oil-and-petrol resistance of the plasticate while maintaining its strength characteristics and thermal stability.2 tbl
Composition for oil-and-petrol resistant plasticate // 2637949
FIELD: chemistry.SUBSTANCE: composition for the cable plastic compound contains components at the following ratio, pt wt %: polyvinyl chloride emulsion EP 6602-C 100.0; epoxy resin ED-20 10.0; dioctyl phthalate 45.0-15.0; tribasic lead sulfate 2.0; calcium stearate 2.0; butadiene-nitrile rubber BNKS-33 35.0; trichloroethyl phosphate, or trichloropropyl phosphate 10.0-40.0.EFFECT: increasing the oil-and-petrol resistance of the plasticate while maintaining its strength characteristics and thermal stability.2 tbl
ethod of producing composition for oil-benzene-resistant plastic // 2637916
FIELD: chemistry.SUBSTANCE: mixing of polyvinyl chloride, dioctyl phthalate, calcium stearate, tribasic lead sulfate, epoxy resin, the addition of wood flour, pre-treated with a 10-20% aqueous solution of the phosphorus-containing oligomer is carried out. Mixing of the mixture components is carried out under normal conditions, the composition is prepared by swelling the resulting mixture for 5 hours at 80°C and the addition of butadiene-nitrile rubber BNKS-33. The plasticate is produced by extruding and granulating the resulting composition.EFFECT: increase the oil-and-petrol resistance of the plasticate while maintaining its strength characteristics and thermal stability.1 tbl, 6 ex
ethod of producing composition for oil-benzene-resistant plastic // 2637910
FIELD: chemistry.SUBSTANCE: mixing of polyvinyl chloride, dioctylphthalate, calcium stearate, tribasic lead sulfate, epoxy resin is carried out. Mixing of the mixture components is carried out under normal conditions, the composition is prepared by swelling the resulting mixture for 5 hours at 80°C and its mixing with NBB-33 butadiene-nitrile rubber. The plasticate is produced by extruding and granulating the resulting composition.EFFECT: increase the oil and petrol resistance of the plastic material while maintaining its strength characteristics and thermal stability.1 tbl, 5 ex
Composition of vinylidenechloride copolymer for barrier film // 2637321
FIELD: chemistry.SUBSTANCE: composition comprises: (a) a vinylidenechloride/methyl acrylate interpolymer having more than 6 wt % of methyl acrylate monomer units in the interpolymer; (b) more than 6 wt % of epoxy plasticiser; and (c) from 0.5 to 4 wt % of the acrylate polymer. The composition has a crystallization time of more than 25 minutes during crystallization at 35°C, measured by a differential scanning calorimeter, and the composition has an oxygen transmission rate of 1.5 to 15.0 cm3mil/100 inch2ati.day, measured in accordance with ASTM D 3985 at 50% of the relative humidity and 23°C.EFFECT: films made from the present composition show improved processability and barrier properties for food packaging.10 cl, 3 tbl, 9 ex
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
Resistant to high temperatures base material for adhesive friction tape // 2635622
FIELD: electricity.SUBSTANCE: item is resistant to the temperatures up to about 105°C over a period of at a minimum 20000 hours and is designed notably for obtaining the friction tapes for use in various application types including for the purposes of electric conductors insulation. The composition of the adhesive friction tape basis comprises polyvinyl chloride, calcium carbonate and stabiliser on the basis calcium and zinc at the ingredients stated ratio.EFFECT: manufacture the resistant to high temperatures insulating base material with adhesive coating and provision the ease of fabrication.7 cl, 4 dwg, 5 tbl, 4 ex
Plasticiser composition for polyvinyl chloride, plastisol and plastificate on its basis // 2633963
FIELD: chemistry.SUBSTANCE: plasticiser composition for polymers based on vinyl chloride, including a mixture of compounds of the general formula , where R1, identical or different, is selected from linear or branched C8-C20alkyl, R2 is selected from linear or branched C1-C6alkyl, wherein alkyl may be optionally substituted with one or more substituents selected from halogen, hydroxyl, C1-C6alkoxy, halogen-C1-C6-alkyl, C5-C10aryl or C5-C10heteroaryl with 1 to 3 heteroatoms selected from N, O and S, in which the content of compound II is from more than 2 to 10 wt % of the total weight of the compound mixture I and II. A method of producing a polymer product is also described, comprising the step of mixing the above composition with a vinyl chloride-based polymer and optionally with auxiliary additives. Plastisol and a plasticate produced by the above method are described. A PVC article produced using the above plastisol or plasticate is described. A composition for producing a polymeric product comprising: A) a plasticiser composition comprising a mixture of compounds of the general formula , where R1, identical or different, is selected from linear or branched C8-C20alkyl, R2 is selected from linear or branched C1-C6alkyl, where alkyl may be optionally substituted with one or more substituents selected from halogen, hydroxyl, C1-C6alkoxy, halogen-C1-C6-alkyl, C5-C10aryl or C5-C10heteroaryl with 1 to 3 heteroatoms selected from N, O and S, wherein the content of compound II is 2 to 10 wt % of the total weight of the compound mixture I and II, b) vinyl chloride-based polymer.EFFECT: increasing the speed of penetration of the plasticiser into PVC particles, with the improvement of the physico-mechanical characteristics of the finished products.40 cl, 1 dwg, 3 tbl, 21 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

ixed fluoropolymer compositions // 2632301
FIELD: chemistry.SUBSTANCE: composition includes: low molecular weight polytetrafluoroethylene (LPTFE) having a number average molecular weight (Mn) of less than 500000 and an initial melting point (Tm) of 332°C or less, as a liquid dispersion of particles having an average particle size of 1.0 mcm or less, wherein the liquid dispersion comprises less than 1.0 wt % of the surfactant based on the LPTFE dispersion weight. The dispersion is prepared by emulsion polymerization and is not subjected to agglomeration, temperature degradation or irradiation, and perfluoroalkoxy (PFA) in the form of a liquid dispersion of particles having an average particle size of 1.0 mcm or less and having a melt flow rate (MFR) of, at least, 4.0 g/10 min, wherein the PFA content in the above composition is 37 to 65 wt %, and the LPTFE content is 35 to 63 wt % of the total solids of the above LPTFE and PFA.EFFECT: mixed fluoropolymers composition can be used to prepare a coating with improved impermeability, stain resistance, wear resistance, smoothness and high contact angle values.13 cl, 64 dwg, 5 tbl, 11 ex
Composition for low-combustible plasticate // 2631881
FIELD: chemistry.SUBSTANCE: composition for low-combustible plasticate contains dioctyl phthalate, calcium stearate, tribasic lead sulfate, ED-20 epoxy resin, diphenylolpropane, trichloropropyl phosphate, carbon black and EP 6602-C emulsion PVC.EFFECT: provision of plasticate fire resistance while maintaining its strength characteristics.2 tbl
ethod for production of composition for oil-benzine-resistant plasticate // 2631880
FIELD: chemistry.SUBSTANCE: method for preparation of a composition for oil-and-benzine-resistant plasticate involves mixing of polyvinyl chloride, dioctyl phthalate, calcium stearate, tribasic lead sulfate, epoxy resin, composition preparation, and subsequent plasticate preparation. Trichloroethyl phosphate or trichloropropyl phosphate is introduced into the mixture, the mixture components are mixed under normal conditions, the composition is prepared by resulting mixture swelling for 5 hours at 80°C and adding of BNKS-33 butadiene-nitrile rubber, and the plasticate is produced by the resulting composition extrusion and granulation.EFFECT: increased oil and benzine resistance and fire resistance of plasticate while maintaining its strength characteristics.1 tbl, 8 ex
Composition for oil-benzine-resistant plasticate // 2631879
FIELD: chemistry.SUBSTANCE: compositions for cable plasticate contain dioctyl phthalate, calcium stearate, tribasic lead sulfate, ED-20 epoxy resin, BNKS-33 butadiene-nitrile rubber and EP 6602-C emulsion polyvinyl chloride.EFFECT: increased plasticate oil and petrol resistance while maintaining its strength characteristics and thermal stability.2 tbl
ethod for producing porous heat-insulating filler // 2631507
FIELD: chemistry.SUBSTANCE: method for producing a porous heat-insulating filler involves sequential mixing polyvinyl chloride with another organic compound, heat treating the mixture, cooling and foaming under heating. The method is characterized in that phenol-formaldehyde resin is used as the other organic compound in the weight ratio with polyvinyl chloride of 5:1-30:1, and the product produced after foaming is subjected to additional heat treatment in an inert medium at the temperature of 700-1100°C for 10-40 hours.EFFECT: increasing the heat resistance of porous filler, excluding the allocation of gaseous components during high-temperature heating of the filler during its operation as a part of the structure.1 tbl
Pvc compositions with high impact strength // 2630797
FIELD: chemistry.SUBSTANCE: composition for manufacturing molded articles comprises a) PVC or its recyclat, b) Fischer-Tropsch derived wax, and c) at least, one partially oxidised polyethylene wax. The composition may contain d) fillers and e) other additives that are conventional for the treatment and stabilisation of chlorine-containing polymers. The invention also relates to the method for preparing PVC compositions or its recyclat.EFFECT: improving the composition characteristics.9 cl, 4 tbl
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
ethod for decreasing content of fluorinated emulsifiers in aqueous dispersions of fluoropolymers by sugar-based emulsifiers // 2629069
FIELD: chemistry.SUBSTANCE: aqueous dispersion of fluoropolymers contains a fluoropolymer, at least, one sugar-based emulsifier, an additive selected from the group consisting of a functionalizing ester and an anionic surfactant (sulfates, sulfonates, phosphonates) and 0 to 1000 ppm of fluorinated polyester emulsifier. The process for increasing the dispersion concentration of fluoropolymers involves the preparation of an aqueous dispersion of fluoropolymers comprising a fluoropolymer and a fluorinated polyester emulsifier having the general formula [Rf-O-L-A]M. The dispersion is heat treated in the presence of a sugar-based emulsifier. Heating causes phase stratification to an aqueous dispersion enriched in fluoropolymer and an aqueous phase depleted of fluoropolymer.EFFECT: improving the properties of fluorinated dispersions containing a small amount of more biodegradable fluorinated polyester emulsifiers.13 cl, 12 ex
ultilayer self-adhesive material // 2628786
FIELD: chemistry.SUBSTANCE: sheets in the multilayer package are glued together with an epoxy adhesive composition. The multilayered material is intended as a gasket to compensate for the gaps that arise between individual elements in the process of making structures of complex configuration and can be used in the aircraft industry, machine engineering and other fields of engineering. The epoxy adhesive composition comprises an epoxy-diane resin, polyoxypropylene glycol diglycidyl ether or polyoxypropylene glycol triglycidyl ether, liquid butadiene-nitrile carboxylate rubber, isomethyltetrahydrophthalic anhydride, tris-2,4,6- (dimethylaminomethyl) phenol or bis-(N,N'-dimethylcarbamide)-diphenylmethane and an organic solvent, for example ethyl acetate or acetic acid butyl ether or acetone. The multilayer material is a stack of sheets of aluminium foil or a thin aluminium sheet and aluminium foil sheets that are glued together by an epoxy adhesive means of the said composition. The adhesive composition in the multilayer material glues individual sheets with strength, that, on the one hand, can prevent spontaneous stratification of the packet; and on the other hand, this strength is less than the peeling force when separating excess layers from the package in order to achieve the required thickness of the multilayer compensation pad.EFFECT: achieving of the strength of adhesive joints, which prevents spontaneous stratification of the package, and on the other hand, provides separation of excess sheets from the package by hand.3 cl, 2 tbl, 7 ex
ixture of vinylidenhloride interpolimer and poly(butylenesuccinate) // 2627388
FIELD: chemistry.SUBSTANCE: invention relates to a mixture for forming cast, blow-moulded extruded, cast, injection moulded or calendered products comprising, based on the weight of the mixture: A) from 80 to 98 wt % of a vinylidenechloride (VDC) interpolymer, wherein VDC interpolymer Includes units derived from one or more monomers of alkylacrylate, alkylmethacrylate or acrylonitrile, and B) from 2 to less than 15 wt % of poly(butylenesuccinate) (PBS), wherein BPS has Mw from 40,000 to 1,000,000 Dalton.EFFECT: barrier films made from a composition containing a vinylidenchloride interpolymer and polybutylenesuccinate exhibit improved tensile strength, both in the longitudinal direction and in the transverse direction, without significantly reducing the rate of oxygen penetration, as compared to barrier films manufactured under similar conditions in all respects, except that the polybutylenesuccinate was replaced with an additional vinylidenchloride interpolymer.10 cl, 2 tbl
ethod of producing composite polymer material with higher filler content // 2625232
FIELD: chemistry.SUBSTANCE: mineral filler of 150 - 800 pts. wt. for 100 pts. wt. is added to the polymeric material, while the addition of the filler and mixing with the polymer is carried out using direct addition technology and upstream of the mixing zone for producing the masterbatch. The polymeric material includes a polymer selected from the group consisting of vinyl polymers, vinyl copolymers, acrylic polymers, acrylic copolymers, chlorinated polyethylenes, and mixtures thereof.EFFECT: reducing the time of production and saving energy, producing a high-quality masterbatch.12 ccl, 2 tbl, 8 ex
Transparent products from graft co-polymers pvc // 2622383
FIELD: chemistry.SUBSTANCE: method comprises obtaining a basis for grafting polymerization of monomers, grafting the copolymer phase to the substrate by graft polymerisation with the formation of an emulsion latex of the graft co-polymer of vinyl chloride, copolymer of vinyl chloride grafted branch in the form of solid latex. Conditions for carrying out the method such that the glass substrate temperature to graft is below the glass transition temperature of co-polymer grafted phase. The average size of the vinyl chloride graft co-polymer particles is below 200 nm.EFFECT: method allows to obtain the graft co-polymers of vinyl chloride without the use of an external plasticiser which can be further processed into transparent films and moulded articles.18 cl, 1 tbl, 5 ex

Composition on the basis of polyvinyl chloride, pipe, channel or container, application of pvc composition and application of pipe, channel or container // 2621109
FIELD: chemistry.SUBSTANCE: invention relates to a polyvinyl chloride composition (PVC) for the manufacture of pipes, channels, containers, molded articles, and/or a welding rod, wherein the PVC resin in mentioned composition comprising a first and a second resin component has a molecular weight distribution with a number of average molecular weight by MN = 60 kDa to MN = 70 kD and a weight average molecular weight of MW = 114 kDa to MW = 124 kDa, and wherein the chlorine content in the entire composition is from 56% to 62%, and wherein the first resin component is unplasticized PVC and has a molecular weight distribution with a weight average molecular weight MW from 140 kD to 154 kD and a weight average molecular weight MN from 70 kDa to 77 kDa, the second resin component is a PVC resin component, which has a higher chlorine content than the first resin component, and has a molecular weight distribution with a weight average molecular weight MW of 101 kDa to 113 kDa, and a number of average molecular weight MN of 54 kDa to 63 kDa, the ratio of the first resin component to the second resin component in the composition of PVC is from 40:60 to 60:40; The composition of PVC has a Vicat softening point is above 90°C, the PVC composition does not contain impact modifiers.EFFECT: invention provides a composition multifunctional in use in a relatively wide temperature range, excellent in resistance to chemicals, in particular to aqueous solutions of alkalis, as well as the use of these products for the transmission or storage of chemically aggressive substances.13 cl, 3 dwg, 8 tbl

ethod for producing moulding polytetrafluoroethylene powder and method for producing agglomerated product from polytetrafluoroethylene // 2618222
FIELD: chemistry.SUBSTANCE: method for producing the polytetrafluoroethylene moulding powder comprises the stage of suspension polymerizing of a monomer comprising at least 99.8% by weight of tetrafluoroethylene in an aqueous medium to obtain granular polymer particles, and the stage of grinding the granulated polymer particles. The aqueous medium contains from 0.5 to 2000 parts / million of the compound represented by the formula RF(OCF(X1)CF2)k-1OCF(X2)COO-M+, where RF represents a perfluorinated C1-10 monovalent organic group, X1 and X2 represent fluorine atoms or a trifluoromethyl group, and M+ represents an ammonium ion, a hydrogen ion, an alkyl-substituted ammonium ion, or an alkali metal ion. The method for producing an agglomerated product comprises the stage of agglomerating said polytetrafluoroethylene moulding powder.EFFECT: polytetrafluoroethylene moulding powder obtained has a high bulk density and is prepared from granular polymer particles without using an emulsifier showing the problems with biological accumulation and toxicity.14 cl, 1 dwg, 2 tbl, 10 ex
Fluorine rubber based composition and rubber product made of cross-linked elastomer composition // 2617476
FIELD: chemistry.SUBSTANCE: invention relates to a fluorine rubber based cross-linked elastomer composition used for manufacture of a rubber product. The composition comprises fluorine rubber, hydrophobic silicone dioxide, hydrophobically modified using hexamethyldisilazane or silicone fluid, organic peroxide as a cross-linking system, and an additional cross-linking agent. The composition contains 1 to 50 pts.wt. of hydrophobic silicone dioxide, 0.1 to 5 pts.wt. of cross-linking system, and 0,1 to 30 pts.wt. of an additional cross-linking agent per 100 pts.wt. of fluorine rubber.EFFECT: invention provides reasonable hardness and elongation of the cross-linked material.11 cl, 1 tbl, 12 ex
Composite antifriction material and its manufacturing method // 2614327
FIELD: metallurgy.SUBSTANCE: invention refers to antifriction materials. Composite antifriction material based on bronze-filled PTFE consists of tin and lead bronze, PTFE and ultradisperse diamonds at the following component ratio, wt %: PTFE 5-6; ultradisperse diamonds 0.065-0.187; the rest is tin and lead bronze. Method of material manufacturing involves preliminary mixing of PTFE and ultradisperse diamond powders. Then the mix is mixed with tin and lead bronze powder. Obtained three-component mix undergoes cold pressing at 8000-9000 kgf/cm2 followed by hot pressing at 355-400 °C and pressure of 4500-5500 kgf/cm2. Hot-pressed workpiece is cooled down to room temperature under the pressure of hot pressing.EFFECT: enhanced mechanical strength and tribo-technical parameters of composite antifriction material.2 cl, 2 tbl, 1 ex
Polyvinyl chloride foaming inhibitor // 2610608
FIELD: chemistry.SUBSTANCE: invention relates to polyvinyl chloride foaming inhibitors and can be used in production of foamed vinyl wallpaper, linoleum and other similar materials. Polyvinyl chloride foaming inhibitor includes benzotriazole, binder, dispersant, consistency stabiliser, filler, anti-foaming agent and water.EFFECT: invention enables to produce a polyvinyl chloride foaming inhibitor, suitable for application via deep printing, and having low cost and not requiring special equipment during its preparation.10 cl, 2 ex
ethod of incorporating additives into vinylidene chloride polymers without use of blender // 2609806
FIELD: chemistry.SUBSTANCE: invention relates to vinylidene chloride (VDC) polymers. Method for blending solid additive particles with solid VDC polymer particles, wherein method comprises following steps: A) polymerising VDC monomer, optionally with one or more mono-ethylenically unsaturated comonomers, in a polymerisation zone under polymerisation conditions to form solid VDC polymer particles; B) stopping the polymerisation of VDC monomers after formation of solid VDC polymer particles; and C) contacting solid VDC polymer particles with solid additive particles (I) before solid VDC polymer particles are de-watered, (II) during and/or after removal of residual monomer from solid VDC polymer particles and (III) at a temperature sufficient to melt or soften solid additive particles, but insufficient to melt or soften solid VDC polymer particles such that melted or softened solid additive particles adhere to solid VDC polymer particles upon contact.EFFECT: disclosed is a method incorporating additives into vinylidene chloride polymers without use of a blender.10 cl, 3 tbl
Elastomeric composition based on bromine-containing tetrafluoroethylene and perfluoroalkyl vinyl esters copolymer // 2608091
FIELD: rubber industry.SUBSTANCE: invention relates to production of rubber mixtures based on ternary or quaternary bromine-containing copolymers of tetrafluoroethylene and perfluoroalkyl vinyl esters. Described is sealing materials elastomeric composition based on bromine-containing copolymer of tetrafluoroethylene and perfluoroalkyl vinyl esters, containing curing agent, organic peroxide, curing coagent triallyl isocyanurate and hydrogen halides scavenger, selected from group comprising zinc oxide and calcium hydroxide, which additionally comprises radiation-modified polytetrafluoroethylene with number-average particles size of 1–15 mqm at following ratios of components, pts.wt: copolymer 100, organic peroxide 2.0–3.5, triallyl isocyanurate 2.0–3.5, hydrogen halides scavenger 2.0–3.0, radiation-modified PTFE 2-20.EFFECT: technical result: development of composition, which vulcanizates have reduced water absorption at 200 °C, while maintaining composite high strength properties.1 cl, 2 tbl, 16 ex
Polymer composition for structural purposes // 2607409
FIELD: chemistry.SUBSTANCE: invention relates to a polymer composition for structural purposes based on fluoroplastic and powder filler and can be used in making seals for flange joints of containers containing aggressive substances, and devices operating in corrosive media. Composition contains fluoroplastic and filler in following ratio of components, wt%: fluoroplastic grade F-4M 75–95, nickel powder with average particle size from 2 to 10 mcm 5–25.EFFECT: improved operational properties, in particular, low moisture permeability, modulus of elasticity while maintaining high corrosion resistance, which ensures tightness of container with corrosive medium for longer period of time; providing lining for maintaining air-tightness of flange joints containers and longer service life of container during long-term storage of aggressive substances, for example waste uranium hexafluoride, without their discharge to 80–100 years; providing sealing of flange joints or gaskets of flanges of gas centrifuges for production of uranium hexafluoride with 2-times longer service life.1 cl, 5 tbl, 5 ex
Diisononyl terephthalate (dint) as softener for thermoplastic applications // 2606605
FIELD: technological processes.SUBSTANCE: invention relates to use of diisononyl terephthalate (DINT) as a plasticiser for increasing low-temperature flexibility and/or for enhancing permanence of polyvinyl chloride compositions for thermoplastic uses. Also described is a plastic article containing a thermoplastic composition produced by thermoplastic processing, where glass transition temperature of polyvinyl chloride composition is -30 °C.EFFECT: providing a plasticiser, having high permanence with corresponding final use and therefore with low tendency to migration and volatility, as well as good low-temperature elasticity of cable coatings and sheaths, that is, preservation of flexibility even at low temperature and absence of brittleness.9 cl, 5 tbl, 1 ex
Resin composition for making pipes based on rigid upvc with high strength and resistance to hydrostatic pressure, and pipes made from rigid upvc // 2606437
FIELD: chemistry; valve production.SUBSTANCE: invention relates to resin compositions for pipes made from rigid impact-resistant polyvinyl chloride (UPVC), having excellent strength and resistance to hydrostatic pressure, which contains polyvinyl chloride (PVC) with K value to from 72 to 84, from 1 pts.wt to 3 pts.wt tin stabiliser and from 1 pts.wt to 10 pts.wt lubricant based on methacrylate per 100 pts.wt PVC resin with K value from 72 to 84.EFFECT: invention also relates to a pipe made from rigid UPVC, having excellent strength and resistance to hydrostatic pressure, made by extrusion of said resin composition.7 cl, 2 tbl

Obtaining and application of composite material containing fibres and at least one vinyl chloride polymer // 2605970
FIELD: materials.SUBSTANCE: invention relates to composite materials used for fibrous reinforcement, and refers to method of fibre containing composite material producing and using and at least one vinyl chloride polymer. Composite includes fibres immersion into said polymer hydrosol to produce said hydrosol coated fibres, followed by drying and applied on fibers hydrosol gelation. Composite material is used for internal accessories in automobile, ship building, furniture industry, in particular, for producing reinforced articles and shapes.EFFECT: invention provides creation of easily utilized composite material for making products with higher rigidity.20 cl, 3 dwg, 3 ex

Use of zinc-oxide-containing frit as uv protection means and polyvinyl chloride plastic having such frit // 2604849
FIELD: chemistry.SUBSTANCE: invention relates to use of zinc oxide-containing frit with ZnO content in range from 20 to 75 wt%, as UV-radiation absorbent for protection of polyvinyl chloride from UV radiation . Described also is a polymer material based on polyvinyl chloride, which includes zinc oxide-containing frit with content of ZnO in range from 20 to 75 wt% as UV radiation absorbent for protection from UV radiation.EFFECT: technical result is providing UV-radiation absorbent for use in PVC.18 cl, 1 tbl, 1 ex

Elastomeric composition based on copolymer of tetrafluoroethylene and perfluoroalkyl vinyl esters // 2603376
FIELD: chemistry.SUBSTANCE: invention relates to production of rubber mixtures based on perfluorinated compounds, such compositions are intended for use as sealing materials in chemical, oil processing industry and microelectronics. Described is an elastomeric composition for sealing materials based on ternary or quaternary copolymer of tetrafluoroethylene and perfluoroalkyl vinyl esters, containing a cyano group, including as a vulcanising agent perfluorodiimidoylamidine and additive of polytetrafluoroethylene, characterised by that, additive used is ultrafine powder of radiation modified polytetrafluoroethylene with number-average particle diameter 1-15 mcm at following component ratio, pts.wt: copolymer 100, vulcanising agent 1-4, ultrafine polytetrafluoroethylene powder 1-10.EFFECT: disclosed is a composition, vulcanisates of which even in unfilled state have high stress at 100 % tension and high-temperature of final decomposition.1 cl, 2 tbl, 7 ex

Thermoplastic film // 2602886
FIELD: packaging industry.SUBSTANCE: invention relates to thermoplastic film, which is used for protection of material intended for thermal insulation from weather exposure and mechanical impacts. Proposed film consists of 10-20 wt.% of thermoplastic elastomer, thermoplastic elastomer therein is chlorinated, particularly chlorinated polyethylene; 10-20 wt.% of thermoplastic, thermoplastic therein is plastic based on chlorine; less than 15 wt.% of ethylene-based modifier, modifier therein is resin, particularly, in order to set, mechanical properties of film; not more than 20 wt.% of non-diffusing plasticizer; less than 40 wt.% of filler; as also not more than 15 wt.% of fire-resistant material.EFFECT: technical result consists in producing film for protection of areas of coupling and joints, without additional materials.6 cl, 1 tbl
Use of wax-like products for processing plastic // 2602885
FIELD: chemistry.SUBSTANCE: invention relates to use of wax, based on chemically modified fatty acids - polyol esters as a lubricant for halogen-containing thermoplastic. Waxlike esters are prepared by A) metathetic oligomerisation of esters of polyols and fatty acids and B) subsequent hydrogenation of resultant reaction mixture, at least some of fatty acid units present in polyol esters being singly or multiply unsaturated. After step A or step B, volatile hydrocarbons are removed.EFFECT: technical result consists in producing lubricants with sufficiently low volatility and high thermal stability under processing conditions.6 cl, 6 tbl, 8 ex

ethod of processing high-molecular weight polytetrafluoroethylene // 2601000
FIELD: chemistry.SUBSTANCE: invention relates to material science and can be used for producing dispersion of low-molecular fluorocarbon materials when making chemical-resistant and anticorrosive coatings. Method of processing high-molecular weight polytetrafluoroethylene (PTFE) involves pre-treatment of nanodiamond powder, preparation of a mixture of nanodiamond powder and PTFE, heating mixture to temperature that allows thermal decomposition of mixture, and collection of thermal decomposition products. Nanodiamond powder is pre-heated in air at 400-440 °C for 40-60 minutes until formation of oxygen-containing surface groups, characterised by absorption band in infrared spectra with maximum in range of wave numbers 1,760-1,850 cm-1. During preparation of mixture of powder of nanodiamonds and PTFE concentration of nanodiamonds of 15-25 wt% is used. Heating of mixture is carried out at 440-480 °C.EFFECT: obtaining powdered low-molecular fluorocarbon material with output of more than 60 % at low heating temperatures without formation of toxic gases HF and NH3.3 cl, 2 dwg, 4 tbl, 4 ex

Fine hydrotalcite particles // 2600378
FIELD: chemistry.SUBSTANCE: present invention relates to dispersion of fine hydrotalcite particles, as well as to a method for preparation thereof. Dispersion contains 100 pts.wt water and from 0.1 to 100 pts.wt hydrotalcite particles, characterised by average diameter of secondary particles according to measurement by dynamic light scattering in range from 5 to 100 nm. Method of producing hydrotalcite particles includes wet grinding of suspension of hydrotalcite particles, characterised by average diameter of secondary particles from 0.1 to 10 mcm, using balls with diameter from 15 to 300 mcm.EFFECT: technical result is production of particles with very small mean diameter of secondary particles, as well as obtaining non-precipitating dispersion with excellent transparency.8 cl, 3 dwg, 1 tbl, 5 ex

Polymer composition for producing linoleum // 2599663
FIELD: chemistry.SUBSTANCE: invention relates to filled plasticised polyvinyl chloride compositions intended for production of linoleum used in industrial and civil construction. Polymer composition contains polyvinyl chloride, product carbonisation epoxydated soya oil, calcium carbonate, plasticiser "EDOS" and tricyclo carbonate propyl ether of polyoxypropylene triol. At that, composition contains product of carbonisation epoxidated soya oil with content of 16.7% cyclocarbonate groups and 2.5 wt % of epoxy oxygen. Composition contains following component ratio, weight parts: polyvinyl chloride 100, product carbonisation epoxidated soya oil - 5-10, calcium carbonate - 190-200, plasticizer EDOS - 90-110, tricyclo carbonate propyl ether of polyoxypropylene triol - 1-2.EFFECT: higher bonding strength between layers of linoleum during delamination by more than 35 %, reduced wear capacity of more than 15 %, and migration of volatile components of composition is reduced by more than 7 %.1 cl, 2 tbl, 3 ex

Polyvinyl chloride-based plastisol // 2598677
FIELD: construction.SUBSTANCE: invention relates to polyvinyl chloride plastisols and can be used for making decorative construction materials, such as wall wallpaper, linoleum and other. Described is a plastisol, including polyvinyl chloride resin, plasticiser, filler, foaming agent and white dye, according to invention it additionally contains white spirit, and filler is a mixture of chalk and talc, with content of latter of not more than 30 wt%, with following ratio of said components, wt%: PV resin - 28-32; plasticiser - 22-26; filler - 39-41; white titanium dioxide dye - 1; foaming agent azodicarbonamide - 2-4; white spirit - balance.EFFECT: producing a plastisol based on polyvinyl chloride, which can be used in production of wallpapers or linoleum, having low cost and providing high relief in finished product.4 cl, 1 tbl, 1 ex

Elastomeric composition based on copolymer of tetrafluoroethylene and perfluoroalkyl vinyl esters // 2596746
FIELD: chemistry.SUBSTANCE: invention relates to elastomeric compositions based on copolymer of tetrafluoroethylene and perfluoroalkyl vinyl esters and can be used in oil refining and petrochemical industry. Composition based on ternary or quaternary copolymer tetrafluoroethylene, perfluoromethyl vinyl ester and perfluoroalkyl vinyl esters, containing nitrile group, containing vulcanising agent - salt of perfluorocyclohexane carboxylic acid of general formula , where R is -NH2, -NH-NH2 or n=2-8, m = 4-8 in following ratio of components, wt%: copolymer - 100, vulcanising agent - 2.0-4.0.EFFECT: invention increases heat resistance of vulcanisates during ageing at high temperatures, absence of release of products, causing their corrosion.6 cl, 2 tbl, 14 ex

Polyphenylene sulfone mixture with polytetrafluoroethylene for reducing tapes friction in flexible pipelines for transportation of oil // 2595666
FIELD: pipes.SUBSTANCE: invention relates to production of synthetic moulded articles, for example, for production of friction-reducing tapes, used as an intermediate layer of flexible liquid pipelines, for example, for transportation of oil. Said moulded article is made from an improved mixture of polyphenylene sulphone (PFSU) and polytetrafluoroethylene (PTFE). Polytetrafluoroethylene prior to extruding has content of particles with size less than 3 mqm from 8 to 12 wt%, and content of particles with size of less than 25 mqm is at least 88 vol%. Mixing PTFE and PFSU in a first extruder at ambient pressure is performed at temperature between 345 C and 385 C. After first extrusion prepared granulate is extruded in a single-screw extruder.EFFECT: invention provides especially uniform mechanical properties in both direction of extrusion and across direction of extrusion, enables to obtain material, such as tape friction reducing in pipelines, which is adapted to prevailing conditions during transportation of oil (temperature approximately 130 C, pressure from 300 to 400 bar).5 cl, 3 dwg, 1 tbl

Lignocellulose polymer composite material // 2595655
FIELD: chemistry.SUBSTANCE: invention relates to production of lignocellulose polymer composite materials and products based thereon and can be used for producing construction, structural and finishing materials, as well as for production of furniture, products of domestic and industrial purposes. Lignocellulose polymer composite material contains a polymer matrix and lignocellulose filler, polymer matrix used is polyethylene in amount of 80-20 wt%, the filler is represented by buckwheat husks in amount of 20-80 wt%. Besides, using natural dyes of polyphenolic nature, extracted from buckwheat husks with molten polymer, allows to produce finished product of different shades of brown colour.EFFECT: technical result consists in improvement of ecological compatibility of the ready product due to increased share of used wastes of buckwheat processing and minimal usage of chemical additives in the manufacturing technique and production of materials and products with high level of technical characteristics.1 cl, 2 tbl

Uv curable polymer composition, sliding coupling and manufacturing method of sliding coupling // 2586217
FIELD: chemistry.SUBSTANCE: invention relates to UV curable polymer composition for formation of self-lubricating gaskets. UV curable polymer composition for a self-lubricating gaskets includes: (meth) acrylate compound having a cycle of isocyanuric acid described by formula (1):where X is a group which contains acryloyl group and consists only of C, H and O, where «Y» and «Z» represent groups, each consists only of C, N and O, and polytetrafluoroethylene resin as solid lubricant, wherein the (meth) acrylate compound with cycle of isocyanuric acid, is contained in an amount of 20 WT% to 90 WT%, and polytetrafluoroethylene resin is contained in an amount of 10 WT% to 50 WT% relative to the total amount of UV curable polymer composition. Also this method contains a sliding assembly including self-lubricating gasket, and manufacturing method for production of sliding assembly.EFFECT: technical result consists in creation of a polymer composition for formation of self-lubricating gaskets, having low coefficient of friction, high wear resistance, high load, high heat resistance, oil resistance, possibility of size correction and simplified production technology.20 cl, 7 dwg, 6 tbl, 24 ex

Composition of synthetic polymer for non-toxic windows from pvc and non-toxic window from pvc // 2585012
FIELD: chemistry.SUBSTANCE: invention relates to synthetic polymer composition for non-toxic PVC windows, as well as to non-toxic windows of PVC, synthetic polymer composition for non-toxic PVC window contains: (a) a stabiliser based on soap non-toxic metal; and (b) inorganic stabiliser based on non-toxic metal, which is a compound containing metal oxide or hydroxide-based inorganic substance, coated with metal, selected from a group of Li, Na, K, Mg, Ca, Al and Zn. Nontoxic PVC window, which is made using said synthetic polymer composition by mixing and extrusion.EFFECT: invention enables to obtain a composition for windows from PVC, which has an advantage in original painting, heat resistance and resistance to weather resistance and does not contain lead or cadmium-based stabilisers, harmful for human organism.17 cl, 1 dwg, 2 tbl, 7 ex

ethod of producing radiation-crosslinked composition based on fluorocarbon polymer // 2584738
FIELD: physics.SUBSTANCE: invention relates to production of radiation-synthesized compound based on fluorocarbon polymer and is intended for creation of homogeneous in volume of compositions with improved viscoelastic properties, having high processability and heat resistance without linkages with homogeneous smooth surface of granules and capable to be processed into thin-walled insulation of wires. Radiation cross-linkable composition based on fluorocarbon polymer is produced as follows. In the cross-linking agent, represented by three-allyl ether of isocyanuric acid TAIC, and inhibitor is introduced. Inhibitor used is preferably hydroquinone or its derivatives with weight ratio of cross-linking agent and an inhibitor ranges from 100:0.1 to 100:0.5. One performs dilution of inhibitor in cross-linking agent. After that filler is introduced represented by metal dioxide. One mixes components. Then obtained suspension is introduced into granules of fluorocarbon polymer F-40AM-copolymer of tetrafluoroethylene and ethylene. In addition, granules of fluorocarbon polymer are added with modified fluoroelastomer and fluorocarbon oil in weight ratio of 1:5 to 5:1. Components are mixed. Obtained composition is subjected to extrusion and granulation.EFFECT: invention provides improved viscoelastic properties, high wear resistance and strength.1 cl, 1 tbl, 2 ex

Radiation-crosslinked composition // 2584737
FIELD: insulating materials.SUBSTANCE: invention relates to insulation materials for wires and cables, that is, to insulating materials for cable industry, which is a radiation-crosslinked composition. Radiation-cross linked composition contains alternating modified copolymer of tetrafluoroethylene and ethylene of equimolar composition, triallyl isocyanurate, sebacic acid, heat stabiliser, magnesium oxide, modified fluoroelastomer and fluorocarbon oil in following ratio, wt%: alternating modified copolymer of tetrafluoroethylene and ethylene - 89-96, triallyl isocyanurate - 1.5-3.5, sebacic acid - 0.7-2.7, heat stabiliser 0.2-1.0, magnesium oxide - 1.0-2.5 modified fluoroelastomer - 0.1-0.3 and fluorocarbon oil - 0.5-1.0. Ratio of modified fluoroelastomer and fluorocarbon oil ranges from 1:2 to 1:10.EFFECT: radiation-cross linked composition has high processability and thermal resistance due to increased wettability of components and viscoelastic properties of composition, avoiding premature crosslinking during high temperature treatment composition and obtaining granules of radiation-crosslinked composition with a homogeneous even surface without inclusions and overlapping through uniform distribution of components in whole volume of composition.1 cl, 4 tbl
 
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