Processes of treating or compounding macromolecular substances (C08J3)

ethod for producing of unsaturated polyester resins aqueous emulsion // 2642564
FIELD: technological processes.SUBSTANCE: invention relates to an unsaturated polyester resin aqueous emulsion production method, intended for use as a film-forming component of the lubricant applied to the surface of elementary fibers (filaments) when forming a complex yarn during the manufacturing of glass, basalt and carbon fibers. Method is implemented by introducing an unsaturated polyester resin with a molecular weight of 1,000–1,200, a poly-condensation product of glycols with phthalic anhydride and allomaleic acid, not containing an active styrene diluent, with constant stirring at a speed of 1,000–6,000 rpm at room temperature into a non-ionic surfactant aqueous solution, which is a high molecular weight block co-polymer of ethylene oxide and propylene oxide, and after the end of feeding the named resin, the emulsification is continued for 10–40 minutes. Emulsion production formulation comprises, by weight: unsaturated polyester resin 100, block co-polymer of ethylene oxide and propylene oxide 8–15, water 50–150.EFFECT: ensuring uniformity of emulsions, high colloidal-chemical resistance, high dispersity and the possibility of using glass and basalt fibers in production.1 cl, 2 tbl
Self-cleaning toner composition // 2641902
FIELD: chemistry.SUBSTANCE: method of producing a toner composition includes: the first stage of mixing, where resin, colorant, wax, and optional charge controller are mixed with obtaining toner particles; the second stage of mixing, where the first inorganic fine powder and silicone oil are mixed with obtaining oiled fine inorganic powder; and adding the oiled inorganic fine powder to the toner particles and mixing the oiled inorganic fine powder and the toner particles with obtaining the final toner particles, which does not require a heat treatment for bonding silicone oil and fine inorganic powder. A version of the method for producing a toner composition, a toner composition, and an image forming device comprising such a composition are also described.EFFECT: producing a toner composition that allows to use spherical particles and to provide a stable density and significantly improved toner cleaning performance, as well as background stability.20 cl, 4 dwg, 3 ex

Polymeric hydrogels and methods for their preparation // 2641749
FIELD: pharmacology.SUBSTANCE: invention relates to a polymeric hydrogel comprising carboxymethyl cellulose and citric acid. This citric acid participates in the formation of cross-links in carboxymethylcellulose, wherein the said polymeric hydrogel has a swelling ratio of 50 to 300. The invention also relates to application of said hydrogel for use in the treatment of obesity in a patient in need thereof, as well as for the manufacture of a medicament for obesity treatment in a patient in need thereof.EFFECT: increased application efficiency.12 cl, 2 dwg, 8 tbl
Super-absorbing polymer and method of its manufacture // 2641700
FIELD: chemistry.SUBSTANCE: superabsorbent acrylate resin is proposed with particles included therein selected from silica, titania, alumina, and combinations thereof and having the following properties: i) -ii): i) the BET specific surface area is in the range of 300-1500m2/g, ii) the degree of porosity is 50% or more. The particle size is in the range of 2 nm to 50 mcm, the superhydrophobicity is equal to the contact angle with water 125° or more, the number of particles is 0.001 to 1 pts wt per 100 pts wt of superabsorbent acrylate resin. A method for producing the claimed resin is also provided.EFFECT: proposed superabsorbent resin has a high degree of processability, in particular reduced crumbling of resin during application processes.10 cl, 4 tbl
ethod for obtaining of composition based on hyaluronic acid // 2640911
FIELD: cosmetology.SUBSTANCE: invention is a process for preparation of a composition for use as a dermatological excipient in cosmetic and medical applications in the form of a gel comprising a crosslinked first polymer, optionally a second polymer that can be crosslinked or uncross linked, and water, wherein the first and second polymers are selected from polysaccharide, and the process comprises at least steps (i), (ii) and (iv), and optionally step (iii), wherein step (i) is to crosslink a mixture including the first polymer and water, step (ii) is to finish the crosslinking of step (i), step (iii) is to optionally blend the product obtained in step (ii) with the second polymer, step (iv) consists in dialysis of the product obtained in step (ii) or in step (iii), wherein the dialysis step (iv) comprises steps (iv.1)-(iv.3)(iv.1) which is extrusion of the product, obtained in step (ii) or (iii) through the first sieve and then extrusion of the product extruded through the first sieve through the second sieve, in which the second sieve hole size is smaller than the first sieve hole size; or extrusion of the product, obtained in step (ii) or (iii) through the first sieve and then extrusion of the product extruded through the first sieve through the second sieve, and then extrusion of the product extruded through the second sieve through the third sieve, in which the second sieve hole size is smaller than the first sieve hole size, and the third sieve hole size is smaller than the second sieve hole size, where step (iv.2) is to fill the dialysis membrane with the product obtained in step (iv.1), step (iv.3) is to process the filled membrane obtained in step (iv.2) with dialysis solution.EFFECT: obtaining of exclusively homogeneous compositions.14 cl, 14 ex

Refractory polymer composition // 2640769
FIELD: chemistry.SUBSTANCE: invention relates to the refractory polymer composition suitable for use when applying the coating on the treated articles containing thermoplastic polymer containing vinyl acetate, and an unsaturated elastomer containing double bonds as polymeric components, where the polymer components are present in the form of a homogeneous polymer blend, and where a composite matrix is formed, vulcanized only with the use of sulfur or a crosslinking system containing sulfur, where the sulfur crosslinking system is distributed throughout the matrix and fully penetrates into the matrix, and at least one flame retardant or a combination of flame retardants. The invention further relates to articles obtained from such a composition and to composite elements coated with the composition as well as to the method for their preparation.EFFECT: producing compositions for protecting a dynamically tense component with a coating of this composition, so that the aggregate component is sufficiently refractory, in particular, complies with the standard for fire safety CEN TS 45545-2 without rendering noticeable adverse effects by the specified coating on the dynamic properties of the composite element during its service life.38 cl, 16 dwg, 5 tbl, 5 ex
Oxygen absorbing compositions // 2640536
FIELD: chemistry.SUBSTANCE: invention relates to the preparation of a super concentrate composition and a concentrate itself based on cobalt transition metal, a compacted composition based on cobalt transition metal, and to a method of producing compacted pellets of cobalt transition metal. The super concentrate composition contains a polymeric carrier, for example, a polyester, and cobalt dispersed in the polymer carrier. The compacted composition comprises an oxygen absorber and the said super concentrate composition dispersed in the oxygen absorber. Compacted pellets of cobalt transition metal is produced by extrusion of the super concentrate composition, processing the extrudate with the provision of the shape in the form of particles by grinding or triturating. Subsequent compaction of individual pellets from a homogeneous mixture.EFFECT: reduction of oxidative damage in the presence of oxygen.20 cl, 3 tbl, 3 ex
Composition for manufacturing heat-protective coating and method of its manufacture // 2640523
FIELD: chemistry.SUBSTANCE: composition for manufacturing a heat-protective coating and a method for manufacturing it are described. Composition for manufactureing a heat-protective coating includes components in the following ratio, pts wt: furfural 8.0-12.5, urotropin 0.9 -1.8, phenol-formaldehyde resin of the novolak type 8.0-14.0, butadiene-nitrile rubber SKN-40-KNT in the form of a 20% solution of the dry residue in acetone 28.0-33.0, acetone 4.0-7.0, butyl acetate 4.0-7.0, talc 18.0-23.0, mica 10.0-14.0. The method of obtaining the composition includes pretreatment of furfural, hexamine, phenol-formaldehyde resin of the novolak type into the condensation product by reacting a solution of urotropine in furfural followed by the introduction of phenol-formaldehyde resin and the formation of the binder on their basis. Then a solution of butadiene-nitrile rubber SKN-40-KNT in acetone, solvents and fillers are introduced.EFFECT: increase of mechanical properties, resistance to oxidation of a semi-finished product, increase and stability of physical properties of the composition during its production, storage, and processing.3 cl, 2 tbl
Polymer composite moisture-retaining material and method for its production // 2639789
FIELD: chemistry.SUBSTANCE: invention relates to the polymer composite moisture-retaining material, which can be used in the growing of modern technologies for intensive farming and for greening of urban and industrial landscapes and erosion protection of the surface. The composite moisture-retaining material is based on an acrylic copolymer and a filler. The acrylic copolymer is based on acrylamide and acrylic acid salts at a ratio of 25/75-75/25 mol % in the presence of a N,N'-methylene-bis-acrylamide crosslinking agent and a polymerization initiator. As a filler, a mechanically activated peat filler is used, which is a fine dried peat (the grinding degree is less than 0.3 mm) in an amount up to 65 wt % of the number of monomers based on the dry weight. A method for producing a polymer composite moisture-retaining material is described.EFFECT: using the filler with a virtually unlimited source of raw materials, reduced cost of the water-retaining material, additional source of nourishment for plants, while maintaining the water-sorption properties on the level of existing filled and unfilled counterparts.2 cl, 1 tbl, 10 ex

Water-soluble powder polymers having improved dispersibility // 2638984
FIELD: chemistry.SUBSTANCE: invention refers to the dry powder compositions containing water-soluble powder polymers, to the method of obtaining powder compositions (versions), to the water composition of the protective coating, and to method of obtaining water composition of the protective coating. A dry powder composition comprising water-soluble powder polymers and a component in a powder form, comprises, as a powder polymer, polyacrylamides, polyacrylamide derivatives, guar gums, or hydroxyethylcellulose. As a component, the composition contains a component selected from a group consisting of poly (metil vinil ether-alt-maleic acid) copolymers poly (methyl vinyl ether-alt-maleic acid), poly (methyl vinyl ether-alt-maleic anhydride) or poly (methyl vinyl ether-alt-maleic anhydride), poly (styrene-co-maleic acid), copolymer of poly (styrene-co-maleic acid ether), copolymer of poly (styrene-co-maleic anhydride), copolymer of poly (styrene-co-maleic anhydride ether), and their combinations. The preparation of the dry powder composition comprises mixing the water-soluble powder polymers with the component or applying the powder polymers to the component. The water coating composition includes a dry powder mixture and a latex. The water coating composition is prepared by adding one dry powder composition to the coating composition comprising latex, while mixing the formulation.EFFECT: production of a dry powder composition that has improved dispersibility in water as compared to water-soluble powder polymers.12 cl, 3 dwg, 2 tbl, 8 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

Thermoplastic product with thermoactive agent // 2638397
FIELD: human vital needs satisfaction.SUBSTANCE: extruded water-soluble product comprises a water-soluble polymer having extrusion temperature of 90-150°C, a plasticiser, as well as one or more thermoactive agents which can either stimulate the sensory human receptors or change the temperature of the skin when exposed to it, in the total amount from 0.1 to 50% by product weight. Combination of the active agent(s) with the plasticiser before melt-blending with the water-soluble polymer prevents the phase separation of the active agent and the polymer. Products include films, fibres, rods, bars, etc. Such products can be placed in an absorbent product such as a bandage, a medical sheet, a napkin, a sheet, a diaper, panties or a pad.EFFECT: improvement of product properties.19 cl, 3 dwg

icrogel-containing protector mixture for winter tires // 2637906
FIELD: chemistry.SUBSTANCE: vulcanizable rubber mixture comprises, at least, the following components: 100 pts wt of the oil-free rubber matrix that contains a) 15 to 79 pts wt of L-SBR solution styrene butadiene rubber, which does not contain oil with a glass transition temperature Tg(L-SBR) in the range of -70 to -10°C, b) 20 to 75 pts wt of 1,4-cis-polybutadiene BR, which does not contain oil with a glass transition temperature Tg(BR) in the range of -95 to -115°C, c) 1 to 37.5 pts wt of natural rubber NR, oil-free and/or synthetic polyisoprene IR with a glass transition temperature Tg(NR) in the range of -50 to -75°C; hydroxyl group-containing microgel based on polybutadiene; hydroxyl group-containing oxide filler; polysulphide-containing alkoxysilane; a curing agent.EFFECT: invention makes it possible to increase the resistance to reversion during vulcanization of the rubber mixture, to produce a rubber mixture with optimum adhesion to ice-covered and snow-covered road, as well as low rolling resistance and high abrasion resistance.27 cl, 1 dwg, 55 tbl
Concentrated polymer compositions of aromatic polymers and/or vinyl sopolymers // 2637558
FIELD: chemistry.SUBSTANCE: invention relates to a concentrated polymeric composition (master batch) containing a) aromatic polymers and/or copolymers of vinyl in an amount equal to, at least, 10 wt %, in relation to the whole composition, b) at least, one compound containing epoxy functional groups in an amount of 0.01 to 5 wt %, relative to the whole composition, c) at least, one infrared radiation absorbing agent in an amount equal to, at least, 10 wt %, in relation to the whole composition, where the specified infrared radiation absorbing agent is selected from petroleum coke, graphite, or soot. Also the invention relates to the self-expanding compositions of aromatic polymers and/or vinyl copolymers containing A) at least, 50 wt % of aromatic polymers and/or copolymers of vinyl B) at least, one expanding agent, C) at least, one infrared absorbing agent selected from petroleum coke, graphite, or soot, D) at least, one halogenated agent making the composition fire-resistant, E) at least, one epoxy-containing functional group compound, the solubility of which in styrene, measured at a temperature of 25°C, is more than 5 g/100 g, the method of its obtaining, as well as expanding the granules and exfoliated products containing the specified composition.EFFECT: improving the compound properties.19 cl, 2 tbl

Water-dispersible thermoplastic composition moulded by casting under pressure // 2637322
FIELD: chemistry.SUBSTANCE: invention relates to a water-dispersible composition for producing a moulded part of an article. The composition contains from 7 to 70 wt % of, at least, one cellulose derivative, where, at least, one cellulose derivative is hydroxypropyl methylcellulose; from 7 to 70 wt % of, at least, one synthetic water-soluble polymer and from 2 to 50 wt % of, at least, one plasticiser based on the total weight of the composition, where the ratio of the weighted proportion of synthetic water-soluble polymer and cellulose derivative is in the range of 0.1 to 10, additionally, where the composition is thermoplastic. The invention also relates to a moulded article comprising the said composition, and preferably where the moulded article is destroyed in immobile tap water for less than 18 hours. The moulded article is a tampon applicator. The invention also relates to a method of producing a part moulded by casting. The method includes the introduction of water-dispersible thermoplastic composition specified into the mould cavity and forming a thermoplastic composition into a moulded part inside the mould cavity. In addition, the method comprises applying a water insoluble coating to the part moulded under pressure.EFFECT: improving the compound properties.20 cl, 4 dwg, 8 tbl
ineral wool substrate for growing plants on non-phenolformaldehyde binder // 2636967
FIELD: agriculture.SUBSTANCE: substrate contains mineral fibers with a diameter of 0.5 to 10.0 mcm, a binder obtained by thermal curing of an aqueous composition containing polyvinyl alcohol, modified starch and an adhesion modifier silane.EFFECT: reducing the substrate phytotoxicity, increasing its hydrophilicity and improving wettability, an environmentally-friendly substrate.12 cl, 6 tbl, 6 ex
ethod of producing super-absorbing resin // 2636941
FIELD: chemistry.SUBSTANCE: method of producing super-absorbing polymer is proposed, including a) supplying a monomer for the composition containing (meth) acrylic acid and the polymerization initiator, thermal polymerization or photo-polymerization producing a polymer hydrogel b) drying the polymer hydrogel, c) milling the dried polymer hydrogel to a particle size of 150-850 microns, d) adding particles to the milled polymer hydrogel, characterized by i) a specific surface area according to BET method in the range of 300 to1500 m2/g and ii) a porosity constituting 50% or more, of the surface stapler, and e) conducting the reaction of the surface crosslinking.EFFECT: proposed method allows to produce a super-absorbing polymer combining a high moisture content with an excellent processability.17 cl, 2 tbl, 4 ex
ethod of obtaining rubber mixture on basis of diene rubber // 2636710
FIELD: technological processes.SUBSTANCE: method for producing rubber mixture based on diene rubber consists in pretreating for one or two minutes one or more rubber compound components selected from rubber, a sulfur crosslinking agent, a vulcanization accelerator, a vulcanization activator, and a silicic acid filler in an electromagnetic apparatus under the influence of variable electromagnetic field. The electromagnetic field is created by moving magnetic elements from magnetically hard material. Then rubber mixture is made on the traditional mixing equipment.EFFECT: increasing the cohesive strength of rubber compound, increasing the vulcanization rate, the degree of crosslinking, slowing the reversion, reducing the dosage of vulcanizing group ingredients, which reduces the cost of the rubber mixture and its vulcanizates.9 ex
Sustainable resin for emulsification in absence of solvent // 2636311
FIELD: chemistry.SUBSTANCE: branched polyester is described suitable for emulsification in the absence of a solvent, characterized by an initial weight-average molecular weight indicator before the emulsification process in the absence of a solvent and a weight-average molecular weight indicator after the emulsification in the absence of a solvent, where the said branched polyester has a structure that limits the degradation of this polyester upon emulsification in the absence of a solvent to less than 20% of the initial value of the weight-average molecular weight, where the polyester contains a compound of the formula: , or ,where m is an integer from 1 to 1000; and where n is an integer from 1 to 1000. Also a method for producing the above branched polyester is described, comprising reacting, at least, one branching agent with, at least, one dibasic acid with, at least, one diester, or a mixture or combination of these substances, resulting in the formation of the above branched polyester, where, at least, one branching agent is sufficient to form, at least, one branch site based on the alcohol and acid group in polyester, which limits or completely prevents the polyester degradation during the emulsification process in the absence of a solvent, optionally, where the branching agent may contain three or more branching sites based on the alcohol group. Also a method for emulsification in the absence of a solvent is described, to produce a polyester latex, comprising: reacting the above branched polyester with a solid neutralizing agent in the absence of an organic solvent to form a premixture; melt mixing of the mixture; reacting the melt mixed mixture with deionized water to form an oil-in-water emulsion; optionally, it may include the reduction of the latex particles. A polyester latex produced by the emulsification process in the absence of a solvent is described, comprising: reacting the above branched polyester with a solid neutralizing agent in the absence of an organic solvent to form a premixture; melt mixing of the mixture; reacting the melt mixed mixture with deionized water to form an oil-in-water emulsion; optionally, it may include the reduction of the latex particles.EFFECT: reducing the degradation of branched polyesters in the emulsification process without a solvent.4 cl, 1 tbl, 5 ex
ethod for curing thermoreactive resin // 2636149
FIELD: chemistry.SUBSTANCE: method is described comprising the step of contacting resin with (i) 0.1-5 parts by weight based on 100 parts by weight of resin, one or more imines of the structure , where y=1 or 1, Z=1-4 and y+z≥2, X is O, R1 is a cyclic alkylene group having 2-18 carbon atoms; R2-R3 are linear or branched alkyl groups having 1-18 carbon atoms; R4 and R5 are hydrogen, and (ii) 0.5-5 parts by weight based on 100 parts by weight of a peroxide resin.EFFECT: method improvement.10 cl, 1 tbl, 1 ex
ethod for producing nanocomposite materials based on polymeric matrix and nanoscale fillers - nanoparticles // 2636084
FIELD: chemistry.SUBSTANCE: method for producing nanocomposite materials is described, characterized in that mixtures of different nanoparticles are used as a nanoscale filler of, at least, two types: nanoparticles of the layered geometry, nanofibres, nanotubes, and nanocones/discs introduced into the polymer simultaneously or sequentially. The nanoparticles are introduced into the polymer simultaneously or sequentially by stirring with a mechanical stirrer for 24 hours at the speed of 1000 rpm. At the same time, at least, one of several types of the used nanoparticles can be introduced into the polymer matrix at the stage of its synthesis (in situ polymerization). From the produced nanocomposite solution, films are cast by means of a slot die, dried for 2 hours at the temperatures of 80°C or 70°C followed by the heat treatment in heating mode up to 360°C with the speed of 5 deg/min or up to 250°C at the speed of 3 deg/min and holding at this temperature for 15 or 30 minutes, respectively.EFFECT: providing a polymer material with a high total nanoparticle concentration, at which the concentration of nanoparticles of each type remains sufficiently low to remain uniformly distributed in the volume of the polymer and not to form aggregates, which provides an increased level of mechanical characteristics such as a module of elasticity, strength, and a plasticity limit.2 cl, 1 dwg, 1 tbl, 7 ex

ethod of obtaining dynamically volcanized alloys // 2635610
FIELD: technological processes.SUBSTANCE: alloy includes at least one elastomer and at least one thermoplastic resin. According to the method, the thermoplastic resin is added to the extruder in two stages with the intermediate addition of a compatibilizing agent. In addition, vulcanizers of elastomers are added to the extruder during the final addition of the thermoplastic resin.EFFECT: invention allows to obtain dynamically vulcanized alloys with unique morphological properties, which are characterized by good impermeability and low-temperature elasticity.19 cl, 3 dwg, 9 tbl

ethod for introducing and transporting unstable additives in molten substance flows // 2635240
FIELD: chemistry.SUBSTANCE: method is carried out by introducing and transporting unstable additives or mixtures thereof in the transport pipe, in which the main flow of molten material flows. Herewith the additives or a mixture thereof are introduced into the pipe section delimited by the main flow in accordance with one of the following alternative methods. In the longitudinal direction with respect to the direction of the main flow of the molten material, or in the transverse direction with respect to the direction of the main flow of the molten substance, or a combination of longitudinal and transverse methods. Thus forming a flow, in which unstable additives are separated from the main flow of the molten substance.EFFECT: reducing the decomposition of unstable additives when they are introduced into the molten mass.22 cl, 14 dwg, 14 ex
ethod of obtaining polymer composition for high-frequency energy absorbing // 2633903
FIELD: radio engineering, communication.SUBSTANCE: method of obtaining a polymer composition for high-frequency energy absorbing is based on the fact that components of the polymer composition are mixed to absorb high-frequency energy of the following makeup pts. wt.: a low molecular dimethylsiloxane caoutchouc SKTN 15-25, carbonyl iron P-10 105-175, a cold curing accelerator No. 68 1.5-2.5, ethyl silicate-40 1.5-2.5 and cured. The method includes the steps of weighing rubber of a low molecular dimethylsiloxane caoutchouc SKTN and ethyl silicate-40, the mixing these components to a uniform state for 10 minutes at a temperature of 25±10°C, then injecting into this mixture the carbonyl iron P-10, previously dried at a temperature of 120±5°C for 2-3 hours in a pan of a 2-3 cm, cooled to a temperature of 25±10°C and sieved through a sieve № 0.05. A mixture of a low molecular dimethylsiloxane caoutchouc SKTN, ethyl silicate-40, carbonyl iron P-10 is thoroughly mixed for 10 minutes at a temperature 25±10°C. Then, a cold curing accelerator No. 68 is injected into the prepared mixture and the mixture is mixed for 10 minutes at a temperature 25±10°C. The final mixture is kept at a temperature of 25±10°C for 10 minutes to remove air bubbles. Curing is carried out at a temperature of 25±10°C with not less than 20 hours, then at a temperature of 160±5°C for 7 hours.EFFECT: reduction of shrinkage of the composition after its curing, ensuring the stability of the composition after exposuring high temperature and cyclic temperature changes, increasing the attenuation of the microwave signal wave.1 tbl
Polymer material for application in heat insulation // 2632842
FIELD: heating.SUBSTANCE: polymer material is formed from a thermoplastic composition containing a continuous phase, which comprises of a matrix polymer, and in which the microinclusion additive and the nanoinclusion additive are dispersed in the form of discrete domains. The material defines a porous network that includes a plurality of nanopores with an average cross-sectional dimension of about 800 nanometers or less. The polymer material shows a thermal conductivity of approximately 0.20 watts per meter-kelvin or less.EFFECT: improving the heat properties of the material.45 cl, 16 dwg, 9 tbl
ethod of producing rubber compound // 2632692
FIELD: chemistry.SUBSTANCE: method involves mixing in a technical mixer of rubber crumb-powder from automotive chambers and tires with a size of 0.2-2.0 mm, latex, dimethoxymethane, dimethylether, dibenzoate, dye, water. Mixing is carried out for 30 minutes before the formation of the liquid rubber mixture. The components are added in a ratio, wt %: crumb-powder - 35; emulsifier latex liquid - 35; dimethoxymethane - 6; dimethylether - 5; dibenzoate - 5; dye - 7; water - 7. The mixture is ready to spray, cure for 20 minutes after application to the surface.EFFECT: invention makes it possible to obtain a liquid rubber mixture using rubber waste - worn automobile chambers and tires, which forms a protective coating on the surface of metal with good elasticity and flexibility, water resistance, resistance to temperature changes.1 cl
Heat-shielding material // 2632442
FIELD: chemistry.SUBSTANCE: heat-shielding material consists of, wp: ethylene-propylene-diene rubber - 100, sulfur - 2, zinc oxide - 5, stearin - 1, technical carbon P-324 - 2, tetramethylthiuramdisuphide - 0.75 mm, 2-mercaptobenzothiazole - 1.5, dithiodimorpholine - 2, pine rosin - 3, white soot BS-120 - 27, and modifying additives - phosphoroborazole-containing oligomer - 6. Phosphoroborazole-containing oligomer is pretreated with colloidal silicic acid and microwave radiation.EFFECT: invention allows to reduce the rate of heating of the heat-shielding material and to provide an increase in heat-shielding properties.2 tbl

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
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
Polymeric materials // 2631823
FIELD: chemistry.SUBSTANCE: method includes: selecting of liquid composition, containing the additive and the carrier; bringing it into contact with the polymeric material; melt processing form the polymeric material. At that the liquid composition is dosed into the polymeric material, when it is melted. The carrier is selected from tri- or tetraethers of pentaerythritol. The ether is produced or can be prepared by pentaerythritol reaction with the carboxylic acid with the carbon chain length C12-C22. Downstream relative to the contact point of the liquid composition and the polymeric material, there is the spinning device for spinning the polymeric material to produce the fiber.EFFECT: prevention of the carrier decomposition, the pressure drop, the smoke emission in the extrusion die and degradation of the polymeric material properties after the additive introduction, the resulting fiber has increased tensile strength.17 cl, 1 dwg, 2 tbl, 14 ex

ethod for producing ultra-high molecular weight polyethylene powder modified by silver nanoparticles // 2631567
FIELD: chemistry.SUBSTANCE: invention relates to the production of ultra-high molecular weight polyethylene (UHMWPE) modified with silver nanoparticles. The method comprises impregnating UHMWPE with an organic nanosilver solution. The impregnation is carried out by introducing powdered UHMWPE pre-impregnated with ethanol into a solution of silver salt in ethylene glycol or methyl cellosolve containing ascorbic acid in an equimolar amount to the salt and the resulting suspension is stirred for 1.5-3 hours at a temperature of 20-30°C at a speed of 750-1000 rpm, then the resulting powder is filtered off and washed with distilled water. Silver methanesulfonate or silver trifluoroacetate or silver monochloroacetate is used as silver salt in the amount corresponding to the specified silver content in the modified UHMWPE.EFFECT: uniform modification of silver nanoparticles.2 cl, 3 dwg, 5 ex
ethod for processing fine powder fillers of composite materials // 2630527
FIELD: chemistry.SUBSTANCE: surface of fine powder fillers is treated with a solution of a phenol-formaldehyde resin of resol type with a nonionic surfactant in isopropanol with vigorous stirring in a vacuum reactor under conditions of a fluidized bed of powder fillers.EFFECT: improved method.2 cl
Processing method of composite materials fibered reinforced fillers // 2630515
FIELD: chemistry.SUBSTANCE: surface treatment of the fibred reinforced fillers is carried out with the solution of phenol-formaldehyde resin of resole type and non-ionic surfactant in isopropanol with slow stirring in the vacuum reactor. Further drying under the vacuum is carried out until the isopropanol is completely removed.EFFECT: processing quality improvement.2 cl
ethod for producing photopolymerizable composition // 2629769
FIELD: chemistry.SUBSTANCE: method for producing a photopolymerizable composition is described, that comprises mixing phosphorus chlorine-containing dimethacrylate, a hydroxyalkyl (meth) acrylate solvent, thermoplastic polymer-polyvinyl butyral, homogenizing the resulting mixture and introducing it before curing the photoinitiator of 2-hydroxy-2-methyl-1-phenyl-1-propanone characterized in that the mixture is produced by successively mixing phosphorus chlorine-containing dimethacrylate with polyvinyl butyral and subsequent introduction of a solvent, and the composition is homogenized under the action of the microwave frequency of 2.45 GHz for 20-60 seconds.EFFECT: acceleration of the method for producing a photopolymerizable composition while maintaining its properties.3 cl, 1tbl, 3 ex
Production method of water-dispersive silicon-organic laquer // 2629192
FIELD: chemistry.SUBSTANCE: method for the preparation of the water-dispersible silicone lacquer, based on polyorganosiloxanes, in which the polyorganosiloxanes solution in the organic solvent (toluene, xylene) is emulsified in water with the addition of the industrial non-ionic emulsifier, which is the product of treating the mono- and dialkylphenols with ethylene oxide mixture. Then, the organic solvent is azeotroped, the water is taken in such amount, that the content of the organosilicon base in the final water-emulsion material is 30-50%, and the emulsifier is added in the amount of 0.2-5% from the polymer weight.EFFECT: production of non-flammable during the storage and non-toxic, when using, the laquers due to the absence of organic solvents in its composition, the removed organic solvent can be used for the second time.1 ex
Bimodal polyethylene resins of high density and composition with improved properties, and ways of their production and application // 2629120
FIELD: chemistry.SUBSTANCE: composition contains a base resin with a density of 945 to 955 kg/m3, in the composition of which is in the amount of 45 to 55 wt % ethylene homopolymer (A) having a density of 945 to 955 kg/m3, and a copolymer of ethylene and C4-C8-alpha-olefin (B) having a density below the density of polymer A. In addition, the composition has a complex viscosity at a shear rate of 0.01 rad/s in the range of 220 to 450 kPa·s, a complex viscosity at a shear rate of 100 rad/s In the range from 2000 to about 2500 Pa·s and the value of the elastic modulus of the melt G'(G"=3000) at the nominal value (G") of the melt viscosity module G"=3000 Pa in the range from 1600 to about 2500 Pa. The method of preparing a bimodal polyethylene composition involves further processing in an extruder using decomposable thermal initiators such as peroxides.EFFECT: increasing the density of the resin.21 cl, 4 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

New plastifiing mixtures and plastisol compounds containing them // 2628395
FIELD: chemistry.SUBSTANCE: mixture contains a plasticiser based on benzoate ester as a primary plasticiser and a compatibilizing plasticizing component. The primary dibenzoate plasticiser is selected from the group: diethylene glycol dibenzoate, dipropylene glycol dibenzoate, 1,2-propylene glycol dibenzoate, and mixtures thereof. The compatibilizing plasticizing component is dioctyl succinate, 3-phenylpropyl benzoate or 1,2-propylene glycol dibenzoate in case, it is not used as a primary plasticiser.EFFECT: invention allows to produce plastisol compositions, phases of the liquid dispersant for the polymer, plasticizing mixtures having a low viscosity and good rheological characteristics.13 cl, 10 dwg, 9 tbl, 7 ex
ethod for producing carbon-fluorocarbon nanocomposite material // 2627767
FIELD: chemistry.SUBSTANCE: method for producing a carbon-fluorocarbon nanocomposite material is proposed, which includes the thermal degradation of solid polytetrafluoroethylene, which is carried out in a plasma medium formed as a result of the preliminary destruction of a similar sample of polytetrafluoroethylene in a pulsed high-voltage electric discharge in air at a pulse amplitude of 2-10 kV, followed by the collection of degradation products in the form of an ash-like product containing individual nanoparticles of the elements that make up the electrodes. The product obtained is subjected to heat treatment by heating with an external source before the appearance of electrical conductivity, accompanied by self-heating of the product, when electric current is passed therethrough. As a result of heat treatment, a carbon-fluorocarbon material containing nanografen bands is produced and a powdered product consisting of composite nanoparticles containing carbon and fluorocarbon components.EFFECT: producing high-yield carbon-fluorocarbon nanocomposite materials with a well-defined nanostructure providing their new properties and expanding the field of application.3 cl, 12 dwg, 2 ex

Domestic animal fodder production method // 2627160
FIELD: biotechnology.SUBSTANCE: method of manufacturing animal feed is provided. Treated biomass containing polysaccharides in the form of cellulose, hemicellulose or starch radiation dose of 5 Mrad to 100 Mrad using an electron beam operating at a power of 5 kW to 500 kW. Prepared food material comprising a material having a number average molecular weight of from about 3000 to about 50,000 daltons. Further, food material is compacted to give an animal feed. Wherein mentioned method does not include the use of a microorganism.EFFECT: resulting food material is the availability of nutrients for protein or amino acid exceeding the availability of nutrients for protein or amino biomass, such recycled biomass is easily hydrolyzed in the stomach of the animal.14 cl, 46 dwg, 21 tbl, 45 ex
ethod of preparing binding // 2626638
FIELD: chemistry.SUBSTANCE: binder preparation is carried out in two stages: in the first phase, butadiene-styrene termoelastoplast mixed with mineral oil in mixer volumetric type at a temperature of 40-50°C until full absorption, on the second-a mineral oil impregnated polymer granules mix In a two-shaft high-shear mixer at a temperature of 70-90°C to complete the transition in the viscous State. As a mineral oil, vaseline or industrial oil is used.EFFECT: enables the improvement in performance of a quality Binder, increase in security, and the process of preparing the energy compounds.2 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
Associated composition, fashionable to sewing by michael connection reactions (rma) // 2625122
FIELD: chemistry.SUBSTANCE: invention relates to a crosslinkable composition to crosslinking by the Michael addition reaction (RMA) to obtain a cured composition containing a component A having at least two acidic protons of the C-H in activated methylene or methine groups (RMA-donor group), a component B with at least two activated unsaturated groups (RMA-acceptor group) and C catalytic system containing or capable of producing a basic catalyst capable of activating RMA reaction between components A and B. The crosslinkable to position further comprises containing XH component D group, which also serves as a donor in the reaction of Michael addition, capable of reacting with component B under the influence of C catalyst, wherein X represents N, P, O, S, or wherein X is a C as a part of the acidic methyl group (CH3). In this X-H group of component D is characterized by a pKa value determined in aqueous medium, at least one unit less than the corresponding value in the C-H groups in component A. Component A is preferably a malonate or acetoacetate. Also described are a set of two parts to obtain a crosslinkable composition, applying the component D as an additive to the crosslinkable RMA compositions blend RMA-additives for coatings of crosslinkable compositions use a mixture of RMA-additives in crosslinkable RMA-composition applying crosslinkable compositions for coatings as well as coating compositions, paints or films. As described coating composition further comprising one or more additives for coatings, such as pigments with the binder and the solvent.EFFECT: providing a reaction time of induction profile for which slows curing and after which it is accelerated to quickly complete curing, the possibility to align after the application of the coating composition as a liquid with subsequent solidification, the absence of defects and surface irregularities of the coating.30 cl, 7 dwg, 10 tbl, 15 ex
Vulcanized compositions based on epoxy-containing group of nitrile rubber // 2622655
FIELD: chemistry.SUBSTANCE: composition comprises at least one epoxy group containing nitrile rubber which contains repeating units of one conjugated diene, at least one α,β-unsaturated nitrile and optionally one or more other copolymerizable monomers, but which lacks repeating units of nonconjugated cyclic polyenes; as crosslinking agent at least one Lewis acid; and at least one cross-linking accelerator selected from the group consisting thiurams, ksatogenaty, thiourea, dithiocarbamates and carbamates.EFFECT: invention produces vulcanizates with favorable performance compression set at room temperature, and at the same time a high tensile stress and elongation at break optimal.6 cl, 14 tbl, 4 ex
ethod of obtaining destructured polybutadiene in oil // 2622128
FIELD: chemistry.SUBSTANCE: process is carried out using as starting material sodium-butadiene rubber SKB, containing in its structure 40-60% of 1,2-vinyl units. The preparation is carried out in one reactor by dissolving the crushed sodium-butadiene rubber SDB in mineral oil with forced air bubbling. The process is carried out at room temperature at the first stage and destruction at 120-130°C in the second stage. The finished product is obtained in 5 hours.EFFECT: reduced explosion risk.2 tbl
Br-nd wet concentrate // 2621812
FIELD: chemistry.SUBSTANCE: invention relates to BR-Nd wet concentrate comprising neodymium-catalyzed polybutadiene having a high content of cis-1.4 units >95% and a low content of 1.2-vinyl <1%, with a narrow polydispersity of less than 3, with a Mooney viscosity of (ML1+4 100°C) from 30 to 90 EM, with high linearity coefficient (the ratio of solution viscosity to Mooney viscosity) from 3 to 10 mPa/EM and Mooney relaxation in 30 s from 2 to 12%, obtained by polymerization in solution, at least one carbon black, wherein the carbon black has an iodine value (IV) from 85 to 210 mg/g as, measured by ASTM D1510-1304, and an oil absorption number (OAN) from 75 to 150 ml/100 g, measured by ASTM D2414, and oil.EFFECT: improved properties.21 cl, 3 tbl

ethod of preparing base polymer solution for producing halobutyl rubber // 2620433
FIELD: chemistry.SUBSTANCE: method is done by dissolving the moist crumb butyl rubber in hydrocarbon solvents by filing a moist crumb rubber, solvent, the filing and withdrawal solution base polymer and water output in the hollow device. While the device has a zone of mixing, dissolving and settling in which the dissolution of rubber crumb, the solution circulation of base polymer, which is at the top of the unit, in the lower part of the zone and the zone of dissolution is held. Ratio of mixing zones of dissolution and zone equal to 3-4:1. When the mixing zone consists of two sections with different diameters, with the ratio of height to diameter of the upper site is -1 0.8:1, and the lower sector 0.3 -0.5:1.EFFECT: reducing losses and reaching base polymer averaging solution without spike concentration.1 dwg, 12 ex

Compositions comprising nonionic surfactant and ionic polymer // 2620394
FIELD: chemistry.SUBSTANCE: composition is used advantageously in solid form and contains a nonionic surfactant R1-O-A-O-R2, where -O-A-O- residue is formed by polyalkylene glycol HO-A-OH, containing monomer units derived from (C2-C6)-alkylene glycol or a mixture of at least two different (C2-C6)-alkylene glycols; and a water-soluble ionic polymer formed from a monomer composition comprising one or more ethylenically unsaturated monomers. At that, the nonionic surfactant R1-O-A-O-R2 is contained in an amount of 0.05 wt % to 2.0 wt %, in terms of the total weight of the composition and has an HLB not exceeding 14, and the ionic polymer is water-soluble or water-swellable.EFFECT: composition provides its flocculation function without degrading the individual components performance, with effective elimination of foaming and minimal consumption of surfactant.13 cl, 2 dwg, 6 tbl, 11 ex
Dust-free method for nanoparticles (cnt) containing master batch production in high viscosity rubber by triorolls // 2619782
FIELD: chemistry.SUBSTANCE: powder nanoparticles are mixed with at least one polymer latex, heated up to temperatures from 100°C to 200°C, and dispersed on triorollers after water removal. Single-, multi-, double-walled carbon nanotubes are used as nanoparticles. The master batch comprising carbon nanotubes, is moved along the middle roller into the gap between the middle and removable rollers, and dispersed therein. Withdrawn from the removable roller. Gap width is 5 to 120 microns. At each passage, gap width decreases ≥ 1.5 times.EFFECT: no carbon nanotubes dust and obtaining of the final product without any quality loss.5 cl, 1 tbl, 4 ex

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
 
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