Organic macromolecular compounds and their preparation or chemical working-up and compositions based thereon (C08)

C   Chemistry; metallurgy(318327)
C08            Organic macromolecular compounds; their preparation or chemical working-up; compositions based thereon(31132)
Processed fillers, compositions containing them, and products produced from them // 2642795
FIELD: chemistry.SUBSTANCE: method of producing a treated filler comprises treating the suspension containing a raw filler that is not pre-dried using a treating composition containing a treating agent. The treating agent comprises at least one compound selected from an unsaturated fatty acid containing a linear or branched optionally substituted C4-C38alkyl having at least one carbon-carbon double bond; a derivative of the said unsaturated fatty acid, wherein at least one carbon-carbon double bond is reacted to include at least one functional group; and/or salts of the said unsaturated fatty acid. The untreated filler is selected from aluminium silicate, silica gel, colloidal silicon dioxide, precipitated silica, and mixtures thereof. The suspension of the treated filler is dried to obtain a treated filler.EFFECT: invention makes it possible to improve the compatibility of materials with a high specific surface area with the polymer matrix into which they are incorporated, to reduce the process viscosity and to prevent the phase separation of these materials and the polymer matrix.39 cl, 10 tbl, 2 ex

ethod and system for lignin processing // 2642787
FIELD: chemistry.SUBSTANCE: method of separating lignin from lignin-containing medium, such as liquid made in the method of processing biomass, for example, from a black alkaline solution produced in the enterprise of recycling of pulp, and processing the separated lignin, includes: the precipitation of lignin from lignin-containing liquid medium, followed by exposure of lignin hydrothermal carbonization in the wet state and the removal of carbonaceous material derived from lignin as a result of the carbonization after the implementation of the hydrothermal carbonization, the method further includes: the regulation of the particle size of the carbonaceous material by bringing the pH value of lignin in the wet state before the hydrothermal carbonization to a value exceeding 7, preferably exceeding 8. The system, a carbon-containing product and the application of the product are also declared.EFFECT: obtaining a hydrocarbon product with a controlled particle size and increasing the profitability of the process.17 cl, 2 dwg

Liposomal suspensions stabiliser // 2642786
FIELD: pharmacology.SUBSTANCE: conjugate of the invention is a compound of formula (C6O4H9NH2)m(C6O4H9NHX)n, wherein the remainder of the polyethylene glycol derivative, which is a monomethoxy-PEG succinate acts as a substituent on the amino group X, the molecular weight of chitosan used to prepare the conjugate is 15 to 120,000 daltons, am and n are the number of units in the molecule, where m/n is 6 to 19. The proposed method involves preparation of a solution of N-hydroxysuccinimide ester of PEG-hemisuccinate in dimethylformamide or dimethylsulfoxide, mixing of the solution prepared with an acidic solution of chitosan with a molecular weight of 15-120 kDa, and adjustment of the resulting mixture to a pH of 7.5-8.0, followed by purification by dialysis against buffer solution.EFFECT: new substance effective for liposomal suspensions stabilization is disclosed, and an effective method for its preparation.3 cl, 3 dwg, 4 ex

ethod of producing linear block-copolymers (meth) acrylic monomers // 2642780
FIELD: chemistry.SUBSTANCE: method of producing linear block-copolymers of methacrylic monomers involves sequentially synthesizing the first and the second blocks of copolymers by the controlled radical polymerization. At the first stage, obtaining a polymethacrylate initiator is carried out through the synthesis of its monomer A with dinitrile of isoiso-butyric acid used as an initiator, and 4,6-di-tert-butyl-N-(2,6-diisopropylphenyl)-o-imino-benzoquinone used as a polymerization regulator, when their molar ratio of monomer: initiator: polymerization regulator as 1000:(1÷8):(1÷8) for 3-20 hours at a temperature of 70°C, at the second stage obtaining a diblock-copolymer is carried out by the copolymerization of the obtained polymethacrylate initiator with the monomer B, in their weight ratio of (10-25):(90-75) for 1-15 hours at a temperature of 70°C. The monomer B is not styrene, or styrene is used as the azeotropic mixture with methyl methacrylate as the monomer B if methacrylate is used as the monomer A or styrene is used as the monomer B when n-butylmethacrylate is used as the monomer A.EFFECT: production of finely dispersed block-copolymers of various molecular weights and with the variation of monomeric compositions.7 cl, 2 tbl, 3 dwg
Water-soluble glue // 2642671
FIELD: chemistry.SUBSTANCE: group of inventions relates to an aqueous adhesive composition for gluing various paper products, as well as to a method of producing a substrate, on which a paper label is placed, to a pasted label having resistance to a mixture of ice water and a method of removing a paper label from the substrate. The aqueous adhesive composition includes emulsion polymer and epoxysilane in predetermined amounts, and the adhesive composition contains substantially no crosslinking reagent. The method of producing a substrate, on which the paper label is located, involves producing an adhesive composition and applying this composition to the paper label, then drying it, and applying a label with the adhesive to the substrate. The method of removing a paper label from the substrate includes fabricating the substrate and processing the label to remove it.EFFECT: stability in ice water and removability of labels.3 cl, 1 tbl, 4 ex
Anti-corrosion compositions for zinc-containing primer coating, containing full glass spheres and conducting pigment // 2642665
FIELD: chemistry.SUBSTANCE: composition comprises a) a binder system selected from epoxy resin binder systems, polysiloxane-based binder systems, polyurethane-based binder systems, cyclized rubber binder systems, and phenoxy resin binder systems, b) zinc particles, c) uncovered hollows glass microspheres, and d) a conductive pigment selected from the group consisting of graphite, carbon black, aluminium-based pigments, black iron oxide pigment, antimony doped tin oxide, mica coated with doped antimony tin oxide, indium tin oxide, carbon nanotubes, fibres based on carbon black, graphite, and any mixture thereof. The said composition further comprises a solvent.EFFECT: improving the corrosion resistance of metal structures.17 cl, 9 tbl, 6 ex
Coating compositions cured by ultraviolet radiation and methods for their application // 2642663
FIELD: chemistry.SUBSTANCE: coating composition comprises: (a) functional urethane acrylate having 3 to 15 functionalities; (b) a photoinitiator; (c) an organic solvent and (d) a solvent-modified functional urethane acrylate oligomer. The functional urethane acrylate is present in an amount of 20 to 30 wt %, based on the total weight of the composition, and the said solvent-modified functional urethane acrylate oligomer is present in an amount of not more than 11 wt %, based on the total weight of the coating composition.EFFECT: coating composition can impart excellent rheological properties, as well as excellent gloss properties of the resulting film.21 cl, 6 tbl
Phosphate compounds as adhesion promotors // 2642661
FIELD: chemistry.SUBSTANCE: invention relates to application of a phosphate derivative to promote adhesion between bitumen and aggregates in an asphalt composition. The composition contains bitumen and a phosphate derivative. The phosphate derivative is obtained as a result of: i) etherification of a polyhydric alcohol containing at least three hydroxyl groups with a carboxylic acid containing 8-24 carbon atoms or a derivative thereof, wherein at least one, but not all hydroxyl groups undergo etherification, provided that if the polyhydric alcohol contains 5 or more hydroxyl groups, then at least two, but not all hydroxyl groups will be subjected to etherification, followed by introduction of the resulting ester into the reaction with a phosphating reagent; or ii) carrying out transetherification of triglyceride under the action of glycerine, followed by reaction with a phosphating reagent. Moreover, the said composition is not a "bitumen in water" emulsion.EFFECT: proposed additive increases bitumen adhesion to acidic and basic aggregates, and demonstrates good ecological characteristics.19 cl, 5 tbl, 4 ex
Oil-resin composition // 2642638
FIELD: chemistry.SUBSTANCE: oil-resin composition contains (in wt %) oxidized sunflower oil 30-35; ozonized petroleum resin modified with monoethanolamine, 15-20; solvent - the rest.EFFECT: obtaining of coatings with increased impact strength.1 tbl, 3 ex
Biodegradable composite material // 2642635
FIELD: biotechnology.SUBSTANCE: biodegradable composite material comprising a polymeric matrix based on waste formaldehyde resin and a filler comprising starch, yeast, casein glue, characterized by the filler containing sodium hydrogen carbonate in the following component ratio, by weight: waste phenol-formaldehyde resin SF-010 50.8-55.5, sodium bicarbonate 15.0-16.5, starch 11.0-13.0, casein glue 11.0-16.0, yeast 6.0-6.5.EFFECT: biodegradable composite material is proposed that efficiently utilizes phenol-formaldehyde resins and their wastes by biodegradation with the aim of reduction of the hazard class of the disposed substances, without adversely affecting the soil.1 tbl
Reactive hot-melt adhesive // 2642627
FIELD: chemistry.SUBSTANCE: silane reactive hot-melt adhesive composition includes a silane-modified polymer, an acid-functional wax, and an aminosilane adhesion promoter. The method of applying the silane reactive hot-melt adhesive composition comprises heating it to a melt state, applying to the first substrate, contacting the second substrate, and cooling the applied adhesive composition to a solid state. The product of industrial production includes a silane reactive hot-melt adhesive composition.EFFECT: rapid achievement of the adhesion strength in the uncured state, the long-term viability and improved adhesion strength in the uncured state.16 cl, 2 ex, 6 tbl
Electrically insulating composition // 2642567
FIELD: cable industry.SUBSTANCE: invention relates to the cable industry, namely to polymer electrical insulating compositions intended for use in cable structures, operated in conditions of increased fire hazard and low temperatures when exposed to diesel fuel and lubricating oils. Electrically insulating composition contains, by weight: copolymer of butylene phthalate and polybutylene glycol with butylenphthalate (50–95) wt % and polybutylene glycol (5–50) wt % – 20–90, polyethylene wax 1–5, high molecular weight polydimethylsiloxane 2–20, additionally contains aluminum hydroxide Al(OH)3 or magnesium hydroxide Mg(OH)2 100–200, copolymer of ethylene with octene, or ethylene with vinyl acetate, or copolymer of butadiene with acrylonitrile, or copolymer of styrene with butadiene 8–60, high-density polyethylene modified with maleic anhydride 2–20.EFFECT: technical result – invention makes it possible to provide a high degree of incombustibility, a lower rate of emission of smoke and hydrogen chloride during combustion in combination with increased resistance to diesel fuel and lubricating oils, as well as resistance to low temperatures.1 cl, 8 tbl, 4 ex
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
Curing of aromatic carbodiimides // 2642462
FIELD: chemistry.SUBSTANCE: method of polymerizing aromatic multifunctional carbodiimide is that aromatic multifunctional carbodiimide containing polymerized residues of aromatic multifunctional isocyanate and aliphatic polyol, a carbodiimide group, a urethane group containing aliphatic substituents are subjected to the interaction with the potassium acetate. The reaction is carried out at a temperature in the range of 15 to 90°C. The aromatic multifunctional carbodiimide is a carbodiimide prepolymer which contains carbodiimide in an amount of 2 to 5 wt %, and contains 2 aromatic substituents attached to each carbodiimide group. The curing composition of resin includes a carbodiimide prepolymer and potassium acetate.EFFECT: invention allows to cure aromatic carbodiimides at low temperatures to produce coatings.8 cl, 12 ex

ethod for controlling polymerization of olefins with use of two-component catalyst // 2642434
FIELD: chemistry.SUBSTANCE: method includes bringing the two-component catalyst system in contact with an olefin monomer and optionally an olefin co-monomer in the reactor or system of the polymerization reactors in terms of polymerization with obtaining an olefin polymer. The olefin polymer contains a higher molecular weight component and a lower molecular weight component. The two-component catalyst system comprises the first metallocene catalyst component and the second metallocene catalyst component. The reaction temperature is 60-110°C and the interaction time is from 10 min to 2 h. Controlling the weight relationship of a higher molecular weight component to a lower molecular component is achieved through the regulation of the reaction temperature, where the weight ratio of a higher molecular weight component to a lower molecular component increases with the increase of the reaction temperature.EFFECT: obtaining a specific grade of olefin polymer with specific polymer properties.12 cl, 2 dwg, 2 tbl, 8 ex
Hybrid aqueous dispersions, composite latex emulsion of copolymer of (poly) ethylene and (meth) acrylic acid, hybrid organosilane composite latex emulsion of copolymer of (poly) ethylene and (meth) acrylic acid and coating compositions obtained therefrom // 2642423
FIELD: chemistry.SUBSTANCE: composite latex emulsion of the copolymer of (poly) ethylene and (meth) acrylic acids is produced by the method that includes: a) mixing the copolymer of (poly) ethylene and (meth) acrylic acid and a neutralizing agent in water to form a mixture; and b) blending the mixture with ethylene-unsaturated monomeric component to form a composite latex emulsion of the copolymer of (poly) ethylene and (meth) acrylic acid. A hybrid aqueous dispersion which is prepared by mixing a copolymer of (poly) ethylene and (meth) acrylic acid with water to form a mixture and introducing this mixture into reaction with an organosilane compound is also claimed. Also coating compositions and substrates coated with the compositions are also claimed.EFFECT: coatings produced using the above emulsions and dispersions have a good resistance to clouding, abrasion resistance, bubble resistance, hardness, and scratch resistance.15 cl, 1 tbl, 11 ex
Application of phototrophic bacteria rhodobacter capsulatus pg lipopolisaccharide as factor affecting differentiation activity of 1alfa,25-dihydroxyvitamin d3 // 2642309
FIELD: biotechnology.SUBSTANCE: application of physiological lipopolysaccharide produced by the strain of the phototrophic bacterium Rhodobacter capsulatus VKM IBPM RAS B-2381D as a non-toxic factor enhancing the differentiating activity of 1α,25-dihydroxyvitamin D3 when monocytic-like cells are differentiated into monocytes, is proposed.EFFECT: invention can be used to further differentiate promonocytes and monocytes in clinical and experimental medicine and in development of drugs, in particular for oncology.2 dwg, 1 tbl
Polymeric composition for application on endoprostheses for reconstructive surgery // 2642303
FIELD: medicine.SUBSTANCE: polymeric composition for application to an endoprosthesis contains 2-10 wt % of water-soluble polymer, 10-15 wt % of antimicrobial component of 3-methacryloxysulfolane, the rest is ethyl alcohol.EFFECT: invention allows to expand the assortment of compositions for application to endoprostheses for reconstructive surgery, the spectrum of action due to the manifestation of antimicrobial and anti-inflammatory effect, the operational possibilities due to the applicability for both meshes and threads while simultaneously providing improved processability of polymeric composition application to the endoprosthesis.2 cl, 6 ex

ethods of fermentation of carbohydrate-rich agricultural crops // 2642296
FIELD: agriculture.SUBSTANCE: method involves providing a carbohydrate-rich parenchyma tissue of a plant containing an apoplast at an agricultural crop temperature of 5 to 40°C. The said parenchyma tissue of the plant is combined with an aqueous solution containing yeast at a solution temperature of from 20 to 40°C. The said parenchymal plant tissue is influenced by the pressure of gaseous phase during preparation during the preparation time, or before the plant tissue is combined with the aqueous solution containing yeast, or after said combination. Wherein, the specified time of preparation varies from 1 minute up to 1 hour, but the pressure of gaseous phase in the preparation is less than the atmospheric pressure and ranges from 105 to 200% of the equilibrium vapour pressure at higher temperatures from the specified temperature of crop and the specified solution temperature. The said parenchymal plant tissue is influenced by the pressure of gaseous phase during infusions over time of infusions of from 1 minute up to 1 hour, where the specified yeast are infused into specified apoplast and where the specified pressure of gaseous phase at infusion is more than specified pressure of gaseous phase in the preparation. Free fluid is diverted, that was not drawn into the apoplast, then the pressure of the gaseous phase is supported at fermentation during fermentation time to obtain products of fermentation within the specified apoplast without re-entering the specified water solution containing yeast, in the specified parenchymal plant tissue. Wherein, the specified pressure of gaseous phase at a fermentation is greater than the specified pressure of gaseous phase at the preparation, specified fermentation time is from 6 hours up to 7 days, and the fermentation products are obtained by fermentation of carbohydrates, selected from a group consisting of simple sugars simple sugars obtained by hydrolysis of starch, and their combinations, and where carbon dioxide does not displace specified yeast from the specified apoplast during the fermentation.EFFECT: invention provides efficient fermentation of carbohydrate-rich crops.13 cl, 1 dwg, 5 tbl, 5 ex
ethod of producing metal-containing lubricants for pvc composition // 2642075
FIELD: chemistry.SUBSTANCE: method of producing metal-containing lubricants for PVC-compositions is provided by the interaction of oleic or stearic acid with glycerol in the presence of magnesium oxide and another metal derived from the distillation of reaction water. As a derivative metal, calcium hydroxide is used, acid is poured to the mixture of glycerol and calcium hydroxide pre-heated at 110°C for 1 hour, and stripping of reaction water is carried out by azeotropic stripping with the use of toluene at 85-110°C, when the molar ratio of acid:glycerin:calcium hydroxide:magnesium oxide is 4:2:0.5:0.5.EFFECT: simplification of the method of producing a metal-containing lubricant for PVC compositions and enhancing the properties of the lubricant in the polymer composition.2 tbl
Rubber-based mixture and automotive tire // 2642072
FIELD: chemistry.SUBSTANCE: rubber-based mixture differs in that it contains at least the following components: from 5 to 100 phr of at least one polymer A of the following formula I): I) F-(P-Y-P-Sx)z-P-Y-P-F, where S is a sulfur atom, P is an elastomeric polymer chain obtained by the anionic polymerization of at least one diene with the conjugated double bonds, and optionally at least one vinylaromatic compound in the presence of two-functional initiator, Y is a dicarbanionic group obtained from the two-functional initiator, x independently is an integer for each group of Sx equal to or greater than 1, provided that at least for one of the group of Sx, x is selected from the numbers 2, 3, and 4, z is an integer from 1 to 160, each F independently is an end group selected from the group consisting of -H, -SH, -SOH, -SCl, -SSCl, -SO2H and -SO3H, and at least one filler.EFFECT: improved rolling resistance, improved wear properties, elasticity.12 cl, 1 tbl
Complex polyesters and their coatings // 2642063
FIELD: chemistry.SUBSTANCE: complex polyester obtained from a mixture of reagents is described, including: a) aromatic monoacid where aromatic monoacid is from 25 to 60 wt % when calculating the total mass of the reagents; b) poliacid where poliacid has less than 90 mol % of isophthalic acid; and c) polyol containing at least 3 hydroxyl groups. The mixture of reagents contains less than 1000 parts based on parts per million (ppm) of nonaromatic monoacid, and the above-mentioned polyester is characterized by a dynamic viscosity greater than 15,000 centipoises at 40°C under measurement when using the viscometer Physica MCR 301 rheometer with a parallel plate of 25 mm and a gap of 0.1 mm, depending on the increasing shear rate (from 0.1 to 10 s-1), and an acid number smaller than 15 mg KOH/g. A composition of the coating is also described, containing: a) polyester obtained from a mixture of reagents comprising: 1) aromatic monoacid where aromatic monoacid is from 25 to 60 wt % when calculating the total mass of the reagents; 2) poliacid where poliacid has less than 90 mol % of isophthalic acid; and 3) polyol containing at least 3 hydroxyl groups, where the mixture of reagents contains less than 1000 ppm of nonaromatic monoacid, and the above-mentioned polyester is characterized by a dynamic viscosity greater than 15,000 centipoises at 40°C under measurement when using the viscometer Physica MCR 301 rheometer with a parallel plate of 25 mm and a gap of 0.1 mm, depending on the increasing shear rate (from 0.1 to 10 s-1), and an acid number smaller than 15 mg KOH/g; and b) a stapler. A substrate is described, at least a part of the surface of which is coated with the above composition.EFFECT: production of coatings characterized by good chemical resistance, scratch resistance and weather resistance, high solid content and low volatile organic compounds.19 cl, 9 tbl, 7 ex

Sensor membrane with low temperature coefficient // 2641966
FIELD: chemistry.SUBSTANCE: glucose sensor is encapsulated containing the glucose oxidase enzyme contained within the crosslinked hydrophilic copolymer in contact with the surface of the electrode. The copolymer has the first units of the monomer of 2-hydroxyethyl methacrylate, the second monomer units of the structural formula (V), where Y is -O-; R2 is methyl; and z is an average value of 2 to 250; and the third units of the methacrylate derivatives containing hydrophilic cross connection of the formula (IIIa), where w is in the range of 0-10. A method for manufacturing a glucose sensor and a method for measuring the glucose level in an analyzed object are also disclosed.EFFECT: creating a sensor, in which cross-linked polymer has a permeability for glucose, not dependent on temperature, and gives the ability to generate analytical signals, which are beyond the control of temperature in the range of temperatures.23 cl, 9 dwg, 3 tbl, 4 ex
Composition for producing heat-insulating products // 2641933
FIELD: chemistry.SUBSTANCE: composition includes a binder and a light filler and further comprises carbamide-furane resin of the brand FK and a curing catalyst of the brand OK in the amount of 10 wt % of resin. Wherein an aluminium-chromium-phosphate binder is selected as a binder, and hollow aluminosilicate microspheres with a particle size of 150 to 280 microns are selected as a lightweight filler in the following ratio of components, wt %: an aluminium-chromium-phosphate binder 25-34, hollow aluminosilicate microspheres 55-69.5, a curing catalyst of the brand OK 0.5-1, carbamide-furane resin of the brand FK 5-10.EFFECT: increasing the mechanical properties of refractory lightweight heat-insulating products and reducing the heat losses from a heat-insulated surface.3 tbl, 12 ex
Fluorinated polyamide composition with reduced combustibility // 2641931
FIELD: chemistry.SUBSTANCE: invention relates to low combustibility composite materials including a polyamide base and flame retardant, and can be used to produce moulded articles such as yarns, films and sheets, as well as cast-in-place moulds. The fluorine-containing polyamide composition with reduced flammability includes polyamide PA-6 and flame retardant. The flame retardant is montmorillonite represented by a mixture of two main fractions: 50-100 nm -10 wt %, less than 1 mcm - 80 wt %, less than 10 mcm - 10 wt % with a mixture of polyfluorinated alcohols adsorbed in an ultrasound field thereon. A mixture of polyfluorinated alcohols consists of 1,1,3-trihydroperfluoropropanol-1, 1,1,5-trihydroperfluoropentanol-1 and 1,1,7-trihydroperfluoroheptanol-1.EFFECT: increased duration of thermal protection effectiveness of the polyamide composition.2 ex
Electrically conductive metal-filled polymer compound for 3d-printing (versions) // 2641921
FIELD: electricity.SUBSTANCE: electrically conductive polymer composition contains syndiotactic 1,2-polybutadiene (1,2-SPB) in the amount of 60-50 wt % as a polymeric base and a solder of Sn-63 or lead is the rest as a conductive metal filler. The version of composition contains syndiotactic 1,2-SPB in the amount of 70-50 wt % by as polymeric base, and as a conductive metallic filler: copper or aluminium for the rest.EFFECT: increase in electrical conductivity and melt flow index for polymer composites intended for 3D printing.2 cl, 1 tbl, 20 ex
etallosiloxane oligomers as curing agents of epoxy resins and method of their obtaining // 2641909
FIELD: chemistry.SUBSTANCE: new metallosiloxane oligomers containing a phenylglycidyl fragment in which metal is selected from transition metals, lanthanides, and aluminum are proposed. A method for preparing these oligomers by hydrolytic polycondensation of the corresponding alkoxyorganoetallosiloxanes of the general formula M[O-Si(R)-(OAlk)2, where Alk=CH3 or C2H5 in a medium of phenylglycidyl ether.EFFECT: proposed oligomers are hardener-modifiers of epoxy resins and can be used to obtain new hybrid epoxy materials.3 cl, 2 dwg, 6 ex

Polyurethane elastomer for application in isolation of marine underwater pipeline // 2641908
FIELD: chemistry.SUBSTANCE: method includes providing the first length of the insulated pipe and the second length of the insulated pipe, each has at least one uninsulated end that do not contain insulation, the connection of the uninsulated end of the first length of the insulated pipe with the uninsulated end of the second length of the insulated pipe for forming the connection, the introduction of a curable reaction mixture into the gap, and curing the reaction mixture. The curable reaction mixture contains at least one simple polyetherpolyol, 1,4-butandiol, aromatic polyisocyanate, a catalyst in the form of zinc carboxylate, and epoxy resin. The reaction mixture is substantially free of the reaction catalyst of the epoxy group with an isocyanate group resulting in the formation of oxazolidinone and also substantially free of the amine curing agent.EFFECT: these mixtures are cured and acquire a raw strength similar to mercury catalyst systems.10 cl, 4 dwg, 1 tbl, 2 ex
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
Curable compositions that contain hydrazide functional materials // 2641899
FIELD: chemistry.SUBSTANCE: curable composition contains the following components: (a) a hydrazide functional material having a formula of in which n is 2, x is 0 and y is 1 to n of the first link; and x is 0 or 1 and y is 0 or 1 n for the second link. The condition that the sum of x and y is 1, L1 independently for each n is selected from a divalent hydrocarbyl group optionally interrupted by at least one member selected from -O- and -S-, L2 independently for each n is selected from a divalent hydrocarbyl group, and R1 independently for each n, is selected from a hydrogen atom and hydrocarbyl; and (b) a reagent comprising at least two reactive groups that are reactive with the hydrazide groups of the hydrazide functional material and form covalent bonds therewith. The hydrazide functional material is a trihydrazide or tetrahydrazide-functional material.EFFECT: invention allows to obtain compositions able to be cured at lower temperatures or reduced curing times in comparison with the existing curable compositions without deterioration of desired physical properties.22 cl, 2 tbl, 3 ex
ethod for fusing gasket manufacture // 2641831
FIELD: chemistry.SUBSTANCE: method for fusing gasket manufacture, comprising the following sequence of actions: I. The following is successively charged in the reactor with the agitator turned on (parts by weight): - solvent - toluene - 50; - solvent - acetone - 50; - solvent - trimethylethylsilane 0.2-0.6; - epoxy diane resin - 100; - spherical particles of butadiene-nitrile-styrene-carboxylate polymer - 5-20; - fusing gasket components, determined by the composition for its operation conditions. II. Stirring until the epoxy resin is completely dissolved at a temperature of 20-30°C. III. Impregnation of fiberglass (130 parts by weight) with the resulting solution. IV. Drying of the solution-impregnated fiberglass in the shaft of a vertical impregnating machine at a temperature of 240-243°C for 4-4.5 minutes.EFFECT: ensured stable low warpage of the fusing gasket.5 ex, 1 tbl
Wood-polymeric composition for production of wooden spray plates // 2641827
FIELD: wood industry.SUBSTANCE: wood-polymeric composition for production of wooden spray plate includes wood raw material, a binder and hardener, as wood raw material it contains wooden sprays and recyclable wastes from calibration of wooden spray plates by screw mill with two degrees of mobility with particle size from 0.25 mm to 5.0 mm, crushed flashing, aqueous solution of urea formaldehyde oligomer of KF-MT brand as a binder, and ammonium chloride as a hardener. Saving of wood raw material up to 15% of and the problem of raw materials recycling is achieved by partial replacement of wood raw material which fraction was 68%-84.5% with the filler: recyclable wastes from calibration of wooden spray plates by screw mill with two degrees of mobility with particle size from 0.25 mm to 5.0 mm, which is 10-15% of the total mass of the plates.EFFECT: non-waste technology, waste recycling obtained due to surface treatment of wooden spray plates by the screw mill with two degrees of mobility, and improved environmental performance of the production through complete recycling of wastes.9 dwg, 2 tbl

ethod for applying protective film made of ultra-high molecular weight-polyethylene onto rubber // 2641816
FIELD: technological processes.SUBSTANCE: method is carried out by applying a protective film made of polymer onto the rubber surface. An ultra-high molecular weight polyethylene (UHMWPE) which is applied onto the rubber surface in the form of a powder during rubber curing is used as a polymer. Application of the UHMWPE onto the rubber surface is carried out by immersing the semicured rubber into UHMWPE powder, followed by extension of the curing process of the obtained sample until full cure.EFFECT: obtaining products with increased resistance to wear and aggressive environments.2 dwg, 1 ex

Freezing point-reducing coating from synthetic film for application of wind-generators on rotor blades // 2641790
FIELD: chemistry.SUBSTANCE: application of coating containing from 15 to 75 at % of fluoride, a particular method of the X-ray photoelectron spectroscopy, and from 25 to 85 at % of oxygen, hydrogen and/or carbon defined by the X-ray photoelectron spectroscopy, or coating containing silicon, oxygen, and carbon, causing at least one surface of the rotor blades for lowering the freezing point. The coating is structured in the form of a dot or line image.EFFECT: long and constant protection against icing.5 cl, 9 dwg, 1 tbl
Aqueous coating composition and anti-reflective coating formed from it // 2641769
FIELD: chemistry.SUBSTANCE: invention relates to an aqueous coating composition which includes: specific amounts of the certain first solid polymer particles with an average diameter of 0.60-0.99 mcm, specific amounts of the certain second solid polymer particles with an average diameter of 2-20 mcm and mixtures thereof, and also the third solid polymer particles with a calculated Tg from -60°C to 120°C and an average particle diameter of 50 nm to 500 nm, while for the second solid polymer particles, K10 is less than 1.9E+10 N/m2, and the difference between the refractive index of the outer surface of the second solid polymer particles and the refractive index of the third solid polymer particles is from 10E-4 to 10E-2, and the aqueous coating composition contains less than 10 vol % of the inorganic particles as a filler. A method for producing a coating from an aqueous coating composition and a low-gloss coating is also described.EFFECT: improving the coating properties.9 cl, 11 tbl
ethod for organosolvent lignin sulfation // 2641758
FIELD: chemistry.SUBSTANCE: method for organosolvent lignins sulfation is implemented by reacting lignins with a sulfating complex in a solvent at continuous stirring and heating, followed by isolation of the desired product. As the sulfating agent, a sulfamic acid-urea complex is used, prepared by mixing equimolar amounts of reagents in dioxane at a temperature of 80-95°C, hydromodule 1:5, for 2.5-3.5 hours, at a ratio of the lignin amounts to the sulfating complex of 1:6-8 (g:mmol). The product is isolated by solvent neutralisation and decantation, then purified from low molecular weight impurities by dialysis.EFFECT: invention allows to simplify the method, increase its environmental friendliness, and expand the range of sulphate reagents for lignin.1 tbl, 8 ex

System and method of producing in situ- foam material used in place // 2641755
FIELD: chemistry.SUBSTANCE: system consists of the following components: 50 to 98 wt % of one or more inorganic fillers A), 2 to 10 wt % of one or more water-soluble cationic polymers B), 0.5 to 48 wt % of one or more surfactants C), 0.01 to 1 wt % of one or more cross-linking agents D) reactive with respect to polymers B, 0 to 10 wt % of one or more additives E). The amounts of components A) -E) in weight percent are indicated in terms of anhydrous components, and the total amount of components A) -E) is 100 wt %. The method for producing in-situ foam materials includes the use of system components and foaming by means of gas or a gas mixture. In-situ foam material is used for thermal insulation, for filling cavities and hollow products and as a fire shutter or part of a fire shutter.EFFECT: producing the foam material with little propensity for shrinkage, low emission of harmful substances, suitability for cutting resulting from a short time later after foaming, a low calorific value, small smoke and lack of dripping melt when burned.16 cl, 3 dwg, 2 tbl, 16 ex
Polybutadiene with epoxy groups // 2641754
FIELD: chemistry.SUBSTANCE: polybutadiene with epoxy groups contains monomer units derived from 1,3-butadiene (A) , (B) , and (C) . In polybutadiene with epoxy groups, the relative amount of monomeric units (A) in the entire set of monomer units derived from 1,3-butadiene is from 10 to 60 mol. %, and the sum of the relative amounts of the monomeric units (B) and (C) in the entire set of monomer units derived from 1,3-butadiene is from 40 to 90 mol. %.EFFECT: invention makes it possible to reduce the viscosity and glass transition temperature of polybutadiene with epoxy groups.22 cl, 1 tbl, 3 ex
Sulfur-coated rubber mixture and automobile tires // 2641751
FIELD: chemistry.SUBSTANCE: rubber mixture contains, at least, the following constituents: 40 to 100 parts of, at least, one natural and/or synthetic polyisoprene per 100 parts of rubber, 15 parts or more of, at least, one hydrocarbon resin per 100 parts of rubber formed from 50 to 100 wt % of the aliphatic monomers C5 and from 0 to 50 wt % of, at least, one additional monomer, wherein the hydrocarbon resin has a value of Q from 0.015 to 0.050[°C⋅mol/g], where Q=softening point [°C]/determined by centrifugation with an average Mc [g/mol], and wherein the hydrocarbon resin has a softening point in accordance with ASTM E 28 (ring and ball method) from 60 to 200°C, and 10-300 parts of, at least, one silicic acid per 100 parts of rubber.EFFECT: rubber mixture has a high level of performance in terms of rolling resistance and wet grip performance.9 cl, 1 tbl
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

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
ethod of gluing thin adhesive layers // 2641734
FIELD: technological processes.SUBSTANCE: method includes applying to the first substrate of an adhesive with a layer weight of less than 2 g/m2. The second substrate is a film of thermoplastic synthetic material. The surface of the second substrate is transferred to the softened state by heating up to a temperature in the range of +/-40°C from the softening point of the second substrate. Immediately after heating, the substrates are glued together by applying pressure.EFFECT: fast and reliable gluing when using a small amount of adhesive.11 cl, 1 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 of polymerization of norborene in presence of aniline complexes of palladium // 2641690
FIELD: chemistry.SUBSTANCE: method comprises carrying out the polymerization of norborene in the presence of components of catalyst [(acac)Pd(L)2]BF4, where acac - acetylacetonate, L - substituted anilines such as 2,6-diisopropylaniline, 2,6-dimethylaniline, ortho-methylaniline, para-methylaniline, and etherate of boron trifluoride of formula BF3OEt2. The process is carried out at a molar ratio of boron to palladium B:Pd=20:1-100:1 and a temperature of 25°C in a medium of methylene chloride.EFFECT: invention allows to increase the efficiency of the polymerization of norbornene.2 tbl, 15 ex
ethod for aqueous polyaniline solution production // 2641278
FIELD: chemistry.SUBSTANCE: method for production involves polyaniline treatment with an aqueous solution of a polymer reagent. The polymer reagent is obtained by reacting anhydrous sulfuric acid with hexamethylenetetramine in two stages. The resulting dried product with the conventional name aminocumulene is dissolved in an acidic aqueous solution at a aminocumulene to polyaniline weight ratio of 0.25:1 to 4:1. Polyaniline treatment is carried out under the action of ultrasound, although it is possible to use dispersing devices operating on other physical principles, for example, a rotary impulse device, various disintegrators.EFFECT: preparation of a water-soluble form of polyaniline used for nanocomposite materials synthesis.2 cl, 5 ex
ethod for production of biodegradable coating base // 2641276
FIELD: biotechnology.SUBSTANCE: invention relates to a method for production of a base of biodegradable coating based on methylcellulose and tea fungus, and can be used for cosmetic and medical purposes, for example as masks for skin or medical dressings for reconstructive surgery, tissue regeneration and packaging materials. Initial components are prepared for the method for production of the biodegradable coating base, then methylcellulose as a colloid gel obtained by maintaining a 3-5% aqueous solution of methylcellulose at a temperature of 50 to 60°C for 1.5-2.0 h, is mixed with a reagent for rheology modification represented by gelatin, a plasticiser represented by glycerin, and an antibacterial reagent, then the resulting mixture is mixed and placed on plates, followed by drying, cutting and packing. Tea fungus zooglea is used as an antibacterial reagent, which is pre-conditioned for 10-12 days in the culture liquid, then the tea fungus zooglea is homogenized until a homogeneous mass is obtained, autoclaved for 15-20 minutes at a temperature of 120-125°C at a homogenate pH of 2.8-3.2, and the reagent for rheological characteristics modification, represented by gelatin, is maintained for 55-60 minutes at a temperature of +(20-25)°C, then placed on a water bath at a temperature of +(65-70)°C till complete dissolution, followed by gradual addition of components to the mixer at the following ratio of components in wt %: tea fungus 43.0-45.0, methylcellulose 0.5,-0.7, gelatin 0.1-0.2, glycerin 1.7-1.9, distilled water - the rest, stirring at a rotation speed of 300-400 rpm for 10-15 minutes until a homogeneous gel-like mass is obtained and freezing at a temperature of (49-45)°C for 5-7 hours before drying.EFFECT: simplification and reduction in the cost of production of the biodegradable coating base.5 ex
ethod for chemical modification of elastomers in solution of chlorine-containing hydrocarbon // 2641273
FIELD: chemistry.SUBSTANCE: method for chemical modification of elastomer involves elastomer interaction with a chlorine-containing reagent, which is a chlorine-containing hydrocarbon of the general formula CnH(2n+2) -xClx, where n=10-30, x=7-24. The reaction is carried out with stirring in a non-polar solvent at a room temperature with the following component ratio (wt %): chlorine-containing hydrocarbon 1-3, elastomer 5-20, non-polar solvent - the rest.EFFECT: invention allows to obtain a product with an increased content of chlorine with a reduction in energy consumption and simplification of the technology and allows to use it in ready-made form.2 tbl
Electrically conductive metal-filled polymer compound for 3d-printing (versions) // 2641134
FIELD: electricity.SUBSTANCE: electrically conductive polymer compound as a polymer base contains a polymer of styrene-butadiene-styrene (SBS) in the amount of 10 wt %, as a conductive metal filler - solder Sn-63 or lead in amount of 40 wt %, and as a plasticiser - oil OP-6s in amount of 50 wt %. Version of compound as polymer base contains the SBS in the amount of 10-20 wt %, as conductive metal filler - copper or aluminium in the amount of 30-40 wt %, and as a plasticiser - oil OP-6s in the amount of 50 wt %.EFFECT: increase in electrical conductivity and melt flow index for polymer composites intended for 3D printing.2 cl, 1 tbl, 16 ex

ethod of foamed moulded products manufacturing // 2641129
FIELD: technological processes.SUBSTANCE: invention relates to a process for the manufacture of foam moulded articles comprising the steps of: A) providing a mould and B) introducing the foaming reaction mixture into a mould with variable injection pressure, wherein the exit velocity of the foaming reaction mixture introduced in step B) is ≥ 1 m/s - ≤ 5 m/s, and the injection pressure in step B) decreases in time dynamics, and the foaming reaction mixture has an experimentally determined setting time at a temperature of 20°C, which is 20 ≥ s - ≤ 60 s. The invention also relates to a refrigerator, a freezer and a combination of a refrigerator and a freezer compartment that comprise a foamed moulded article, which in particular is a component of the casing.EFFECT: more uniform foam density distribution and no voids.19 cl, 5 dwg, 3 tbl, 9 ex
Silicate acid-containing rubber mixtures containing ether of ώ-mercaptocarbonic acid with polyhydric alcohols // 2641128
FIELD: chemistry.SUBSTANCE: rubber mixture contains, in each case, at least, one rubber, one sulfur-containing alkoxysilane, one silicic acid-based filler, and one ether ω-mercapto-C2-C6-carboxylic acid with polyhydric alcohols. In addition, the rubber mixture contains, at least, one crosslinking agent, additional fillers, antioxidants, heat stabilizers, light stabilizers, antioxidants, flame retardants, plasticizers, and other auxiliaries. Rubber mixtures are produced by multi-stage mixing. The rubber mixture is preferably cured at a temperature of 100 to 200 °C. Vulcanizates are especially tires and tire parts.EFFECT: increasing the composition efficiency.15 cl, 2 tbl