Compositions of macromolecular compounds (C08L)

C   Chemistry; metallurgy(318327)
C08L              Compositions of macromolecular compounds (compositions based on polymerisable monomers c08f, c08g; artificial filaments or fibres d01f; textile treating compositions d06)(11976)
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
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
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
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
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
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
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
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
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
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
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 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
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
Texstolite of multifunctional purpose // 2641125
FIELD: textile, paper.SUBSTANCE: texstolite is made of heat-treated woven semi-finished product containing reinforcing heat-resistant filler in the form of polyoxadiazole yarn or threads and thermoplastic binder in the form of continuous polyamide complex threads. The filler and binder are stranded twist 150-250 tw./m in combined thread linear of density of 58.0-100.0 tex when their ratio is (0.85-1.18) (0.84-1.16) and the ratio of densities of the woven semi-finished product on the basis of equal and duck 1:(0.5-0.8).EFFECT: reduction in porosity and giving noise, vibration, sound and antifriction properties.3 cl, 2 tbl, 2 ex
ethod for obtaining polyurethane foam with emulsified foaming agent // 2641119
FIELD: chemistry.SUBSTANCE: method for obtaining polyurethane foam comprises the steps of: supplying an isocyanate-reactive component A comprising a polyol component A1 which further comprises a physical foaming agent T; mixing at least the isocyanate-reactive component A and the isocyanate component B, thereby obtaining a polyurethane reactive mixture; feeding the polyurethane reactive mixture into the cavity (11) and lowering the pressure inside the cavity (11) to a pressure lower than the ambient pressure. The physical foaming agent T is present in the isocyanate-reactive component A in the form of an emulsion. The polyol component A1 constitutes a continuous phase, and the drops of the physical foaming agent T are a dispersed phase emulsion. In the latter, the average drop size of the physical foaming agent T is from ≥0.1 mcm up to ≤20 mcm. The drop size is determined by means of an optical microscope operating in a light-field translucent mode.EFFECT: stability of foam resistance to its phase separation during storage or under shear.19 cl, 5 dwg, 3 tbl

Polymeric compound and its application in photovoltaic devices // 2641103
FIELD: chemistry.SUBSTANCE: polymeric compound has the general formula (I), where n is an integer from 2 to 2000 and represents the number of repeating monomer units in the polymeric chains, which may be identical or differentR1, R2, R3, R4 represent the hydrogen atom; R5, R6 are the same or differ from each other and represent an alkyl group C1-C20; X represents a group , where Y=N-R7, or CR8R9, or SiR8R9, where R7, R8, R9 are the same or differ from each other and represent an alkyl group C1-C20, EG-1 and EG-2-end groups of the polymeric compound, which are not dependent on each other and represent an atom of hydrogen, halogen, trialkyl-stannyl (-Sn(Alkyl)3), a residue of boric acid (-B(OH)2), ester of boric acid (-B(OAlkyl)2), aryl or heteroaryl fragment. The composition contains, at least, one polymeric compound of formula (I) and, at least, one material selected from the group consisting of a hole-transport material, an electron-acceptor material, an electron-transport material, and a light-absorbing material. In the second version, the composition contains, at least, one polymeric compound of formula (I) and, at least, one fullerene compound. The method of producing polymers of formula (I) is that a polycondensation reaction of Stille or Suzuki is carried out to bind the starting monomers together to form a conjugated polymer. Polymers of formula (I) are used in the manufacture of photovoltaic converting devices, preferably solar cells, solar panels of solar modules, and optical sensors.EFFECT: polymer with optimal electronic properties, has a width of forbidden zone of 1,2 -1,7 EV, which can be used in the manufacture of photovoltaic converting devices with higher efficacies of photoelectric light transformation.16 cl, 9 dwg, 1 tbl, 8 ex

Composite materials from thermo-reactive resin containing inter-layer particles increasing strength // 2641004
FIELD: chemistry.SUBSTANCE: resin system comprises the following components: (i) a thermosetting resin comprising, at least, one tri-functional epoxy resin and, at least, one four-functional epoxy resin, (ii) thermoplastic polyamide particles having a melting temperature TPA; and (iii) one or more curing agents. The resin system does not contain epoxy resin with a functionality of less than three. The starting components of the resin system are selected so that the thickening of the epoxy matrix during the curing cycle of the resin system occurs at a thickening temperature TGEL at or below TPA. The resin system is cured at a temperature TC in the range of 170 to 190°C, and all thermoplastic particles have a melting temperature TPA not higher than curing temperature TC. The method of producing a composite material is to provide a resin system and combine it with reinforcing fibres. The system is then cured at a temperature in the range of 170 to 190°C at a rate of change of hardening RCR in the range of 0.05 to 3.0°C/min.EFFECT: invention makes it possible to produce a composite material containing thermoplastic particles that increase impact resistance, and having improved compression characteristics under conditions of elevated temperature and humidity, and to reduce or eliminate the formation of microcracks during curing.14 cl, 8 dwg, 7 tbl, 4 ex
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

Segmented, semi-crystal soluble compounds of lactide and epsilon-caprolactone // 2640817
FIELD: medicine.SUBSTANCE: bioabsorbable semi-crystal segmented block copolymer is described, containing a reaction product of: (a) amorphous prepolymer, formed by polymerization of lactide monomer and epsilon-caprolactone monomer in the presence of an initiator, and molar ratio of lactide and epsilon-caprolactoneu in the prepolymer is from 45:55 to 30:70; and (b) lactide monomer with the specified lactide monomer bioabsorbable semi-crystal segmented block copolymer having duplicate links of polymerized lactide and polymerized epsilon-caprolactone, where the molar ratio of polymerized lactide and polymerized epsilon-caprolactone is from 60:40 to 75:25. A bioabsorbable surgical suture containing the above copolymer is also described. A bioabsorbable medical implantable device comprising the above copolymer is described.EFFECT: preparation of a polymer for manufacture of long-term resorbable surgical sutures and medical devices.19 cl, 2 dwg, 3 tbl, 7 ex

Polymeric compound and its application in photovoltatic devices // 2640810
FIELD: chemistry.SUBSTANCE: invention relates to a polymeric compound, to variants of compositions intended for the manufacture of polymer photovoltaic, light-emitting devices and organic transistors, as well as to a method for the preparation of a polymeric compound and its use. The polymer compound has the general formula (I),where n is an integer from 2 to 2000 and represents the number of repeating monomeric units in the polymer chain, which may be identical or different, R1, R2, R3, R4 - the same or different from each other and represent a hydrogen atom, halogen, an alkyl group, an alkoxyl group, a thioalkyl group, an aryl group, alloctype, a thioaryl group, an arylalkyl group, an aryloxy group, an arylalthio group, an arylalkenile group, an arylalkynile group, a monovalent heterocyclic group, a heterocyclic tighrope, an amino group, a substituted amino group, a silyl group, a substituted silyl group, an acyl group, an acyloxy group, a carbonic acid residue, an amide group, an acid-imide group, a carboxyl group, a substituted carboxyl group, a cyano or nitro group, R5, R6 - the same or different from each other and represent an alkyl group C1-C20; X is a group of ,where Y=N-R7, or CR8R9, or SiR8R9, where R7, R8, R9- the same or different from each other and represent an alkyl group C1-C20, or take the same values as R1, R2, R3, R4, R5 or R6, EG-1 and EG-2 - end groups of the polymeric compound that are independent from each other and represent an atom of hydrogen, halogen, trialkylsilyl (-Sn(Alkyl)3), the residue of boric acid (-B(OH)2), ester of boric acid (-B(OAlkyl)2), aryl or heteroaryl fragment. The composition contains, at least, one polymeric compound of the general formula (I) and, at least, one material selected from the group consisting of a hole-transport material, an electron-acceptor material, an electron-transport material, and a flocking material. In the second version, the composition comprises, at least, one polymer compound of the general formula (I) and, at least, one fullerene compound. The process of producing polymers of the general formula (I) is that a polycondensation reaction of Stille or Suzuki is carried out to couple the starting monomers together to form a conjugated polymer. Polymers of the formula (I) are used for the manufacture of photovoltaic converting devices, preferably solar cells, solar panels, solar modules, and optical sensors.EFFECT: invention allows to increase the electronic properties of polymers and to improve the photovoltaic properties of the converting devices.15 cl, 8 dwg, 1 tbl, 4 ex

ethod of producing polydienes and polydiene copolymers with reduced cold flow // 2640800
FIELD: chemistry.SUBSTANCE: method comprises (i) polymerization of monomers with the formation of the reactive polymer, wherein the monomer includes a conjugated diene monomer, at a specified stage of polymerization using a coordination catalyst, and the said reactive polymer has a reactive end of the chain, and (ii) carrying out reactions of this reactive polymer with glycidyl ether. Also, a bound polymer and a tire component derived from a bound polymer are described.EFFECT: improved resistance of the bound polymer to cold flow.13 cl, 1 dwg, 1 tbl, 3 ex
Rubber mixture on basis of propylenoxide rubber for frozen-oil resistant products // 2640784
FIELD: chemistry.SUBSTANCE: rubber mixture includes, pts wt: propylenoxide rubber SKPO - 75-95, epichlorhydrine rubber SKEHG-ST - 5-25, stearic acid 0.5-3.0, zinc oxide - 2.0-10.0, captax - 0.3-1.0, thiuram - and 0.5-2.0, sulfur - 0.5-2.0, filler-technical carbon - 0-100.EFFECT: rubber mixture according to the invention makes it possible to obtain rubber with high frost resistance and strength while maintaining oil resistance.1 tbl, 1 ex

Lighting device with polymer containing luminescent fragments // 2640780
FIELD: lighting.SUBSTANCE: invention relates to a lighting device including a light source for generating light source radiation and a light converter. The converter includes a matrix of the first polymer. The matrix includes discrete zones that contain the second polymer with luminescent functionality, representing a polyarylene ester containing luminescent fragments. The first polymer is chemically different from the polyarylene ester. The discrete zones occupy a volume in the range of 0.5-50% of the volume of the converter. A converter for converting light into luminescence and a method for obtaining said converter are also described.EFFECT: increase in the stability of luminophore and increase in the life of the converter.12 cl, 6 dwg, 1 ex
ethod for preparing organosilicon sealant of brand vixint // 2640778
FIELD: chemistry.SUBSTANCE: method of preparing an organosilicon sealant of the brand VIXINT includes connecting the components included in its composition, their mixing, and subsequent vulcanizing the sealant for 24 h. The mixing is performed mechanically in a vacuum at a speed of 150-350 rp/m for 4-20 min. The sealant composition includes a liquid rubber paste SKTN with the addition of aerosil and inorganic filler of the type ZnO, a catalyst-solution based on tin diethyl-dicaprylate in oligo-ethylcyclohexane, and, if necessary, a hydrophobizating liquid - polyethylhydrosiloxane.EFFECT: increasing the strength of the glued joint during the shift of the silicone sealant of the brand VIXINT, which contributes to the increase in the reliability of the head antenna aerodynamic devices designs.1 tbl, 6 ex

Compositions of dually responsive block copolymers // 2640773
FIELD: biotechnology.SUBSTANCE: sensitive block copolymer contains at least one block A, representing an externally-triggered copolymer, while the externally-triggered copolymer includes at least one monomer with a lower critical solution temperature and at least one monomer with a charged functional group. The externally-triggered copolymer block A is a dually triggered unit that can be triggered under the influence of temperature and ionic strength, and where the responsive block copolymer is micellized, becomes insoluble or turns into a gel at temperatures ranging from 28°C to 37°C and when the salt concentration is approximately 0.9 wt %. The responsive block copolymer additionally includes an externally-untriggered block copolymer B. The monomer with a lower critical solution temperature is selected from methacrylates, based on oligoethyleneoxide. The monomer with a charged functional group is selected from chloride [2-(acryloyloxy) ethyl] trimethylammonium chloride (HQUAT), [2-(methacryloyloxy) ethyl] trimethylammonium chloride, dimethylamino ethyl acrylate or dimethylamino ethyl methacrylate.EFFECT: providing a block copolymer, which is responsive to changing the appropriate combination of temperature and ionic strength, suitable for use in personal care products.18 cl, 4 tbl, 12 dwg, 6 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
ethod of elastomer surface modification // 2640768
FIELD: chemistry.SUBSTANCE: method of surface modification of elastomeric material based on butadiene-nitrile rubber in the form of rubber products involves the treatment of a vulcanizate of the elastomeric material with a solution of the modifying composition - 10-15% solution of fluorinated limit hydrocarbon C20H33F9 in 1,1,2-trifluoro-1,2,2-trichloroethane for 10-20 h at 20±0.5°C. The process is carried out in one stage. After processing, the rubber product is dried to a constant weight.EFFECT: invention makes it possible to simplify the technological process by reducing the stages and time, to ensure technological and environmental safety of production The invention also allows to improve the physical-mechanical characteristics of vulkanizate, lower coefficient of friction and abrasion resistance of elastomeric materials based on butadiene-nitrile rubber on various substrates in their process of the friction contact.3 tbl, 4 ex

Polymeric composition for blow moulding // 2640594
FIELD: packaging industry.SUBSTANCE: composition contains from 45 to 55% by weight of an ethylene polymer (A) having a density of at least 968 kg/m3, and 55 to 45% by weight of an ethylene polymer (B) having a density of from 920 to 955 kg/m3. In addition, the composition has a density of between 952 and 961 kg/m3, a melt index at an increased shear strain HLMI of 18-28 g/10 min, an HLMI/MI2 ratio equal to 80-150, and a modulus of elasticity of the melt G'(G"=3000) of 1200-1600 Pa. In this case, HLMI and MI2 are measured in accordance with ISO1133 at a temperature of 190°C, with loads equal to 21.6 kg and 2.16 kg respectively.EFFECT: good workability balance, high stiffness and good mechanical characteristics, especially resistance to environmental stress cracking and to impact.14 cl, 1 dwg, 3 tbl
Contact lenses containing water-soluble polymers or copolymers of n-(2-hydroxyalkyl)methacrylamide // 2640593
FIELD: medicine.SUBSTANCE: ophthalmic article is made of hydrogel as a cross-linked polymer matrix and contains at least one water-soluble, non-reactive hydrophilic polymer containing less than 20 mole % of anionic repeating units and repeating units derived from a compound of formula I where R1 is hydrogen or methyl; R2 is H or C1-4 alkyl substituted by at least one hydroxyl group; R3 is C1-4 alkyl substituted by at least one hydroxyl group. The water-soluble hydrophilic polymer has a polymerization degree of 100 to 100,000, and is free of end hydrophobic polymer units. Method for ophthalmic article wettability improvement includes ophthalmic article contacting with a solution containing at least one of the above water-soluble nonreactive hydrophilic polymer, under conditions sufficient for inclusion of an effective lubricant quantity of hydrophilic polymer into the ophthalmic article. The ophthalmic solution contains from 10 m. p. and to 10 wt % of at least one water-soluble, nonreactive hydrophilic polymer.EFFECT: invention allows to increase the wettability of an ophthalmic article without surface treatment.29 cl, 1 tbl, 1 ex

Oxygen-binding molecules, articles containing these molecules, and methods for their application // 2640545
FIELD: pharmacology.SUBSTANCE: transparent compositions contain compounds used to bind oxygen. The compounds used for oxygen binding have the structure corresponding to formulas (I) and (II): wherein X is selected from the group consisting of O and S; Y, A and B are independently selected from the group consisting of N and CH; D, E and F are independently selected from the group consisting of CH, O and S; the symbol ---- means a simple or a double bond; and R1, R2 and R3 are independently selected from the group consisting of H, electron-withdrawing groups and electron-donating groups and transition metals.EFFECT: invention allows to improve the production of materials that have a high ability to bind oxygen and are mainly transparent.73 cl, 5 dwg, 12 ex
Polymer composition for sealing integrated circuits // 2640542
FIELD: chemistry.SUBSTANCE: composition includes a binder - ortho-cresol-novolac epoxy resin with a softening temperature of 50-65°C, a curing agent - phenol novolac resin, fillers - a silica filler and a carbon black filler, lubricant - oxidised polyethylene wax, finish - glycidyloxypropyltrimethoxysilane and a latent accelerator. As a latent accelerator, triphenylphosphine complex compounds are used with nickel thiocyanate or nickel thiocyanate with 2-methylimidazole, and as a silica filler - ground dust quartz or a mixture of amorphous fused quartz.EFFECT: development of a polymer composition characterized by controlled viscosity growth during high-temperature homogenization on rolls, uniform curing and extended shelf life.1 tbl, 6 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
ethod of manufacturing a rubber filled by high-active carbon mine // 2640522
FIELD: chemistry.SUBSTANCE: method includes the steps of mixing an aqueous suspension of carbon black (filler) with polymer latex under intense energy in the reactor and isolating it without the use of coagulating agents, followed by dehydration in a screw aggregate. In this case, the combination of latex with the aqueous dispersion of furnace black carbon is carried out in a reactor equipped with a stirring device and an ultrasonic generator. Next, a filled rubber crumb is formed in the ripener. In this case, a coagulator of the flow type is used in the coagulation stage of the latex. After the coagulation step, the resulting chips are dewatered on the filter and in the screw squeezing machine. The final moisture removal is carried out in an air dryer with forced ventilation.EFFECT: production of rubber containing uniformly distributed nanodispersed carbon black, minimization of structural transformations in the polymer phase and production of vulcanizates based on it with high physical and mechanical properties.1 tbl, 24 ex
Filled epoxy composition // 2640519
FIELD: chemistry.SUBSTANCE: composition contains, wt %: epoxy anhydride mixture 90-99.0 and nanoparticles of gallium oxides, either indium or thallium with sizes of up to 50 nm 1.0-10.0. The epoxy anhydride mixture contains epoxy resin ED-20, anhydride hardener - isomethyltetrahydrophthalic anhydride, plasticiser EDOS, accelerator UP-606/2 at a weight ratio of 100:80:5:1.5, respectively. The composition is pre-treated with ultrasound at a frequency of 22 kHz to uniformly distribute the nanoparticles in the volume of the composition.EFFECT: improved thermomechanical properties.1 tbl, 12 ex
Biodegradable film and laminate // 2640243
FIELD: chemistry.SUBSTANCE: biodegradable film comprises PHA and PLA, wherein the PLA content is 1-95 wt %, where PHA is PHB or PHV or a copolymer or a mixture of PHB and PHV, wherein PHB is P(3HB-co-4HB) polymerized with 3HB and 4HB, and the molar percentage of 4HB is in a range of 5 to 85%. The biodegradable film further comprises a cellulose fibre. The invention also relates to biodegradable laminate that contains PBAT or PBS or a mixture thereof and the said biodegradable film.EFFECT: laminates are characterized by a stronger biodegradability in a medium containing microorganisms and are characterized by a good shelf life and good strength, rapid adaptation, and flexibility.20 cl, 12 tbl
Acrylic composition from two parts containing ability to cure // 2640234
FIELD: chemistry.SUBSTANCE: composition comprises the liquid first part stable at storage and the liquid second part stable at storage which react with each other upon mixing with the formation of cement which hardens. The composition further comprises an acrylic monomer component and an amount of an initiator component for polymerizing the monomer component. The monomer component and the initiator component are typically in the separate parts of the two parts of the composition, so that the monomer component is stable at storage. The liquid first part contains, in a liquid carrier, acrylic polymer particles obtained by emulsion polymerization. A method for the preparation of a curable, two-part acrylic composition is also described. The composition is particularly useful when used in a syringe or a compression seal gun having at least two cylinders. A solid cement composition of bone cement, obtained by curing the acrylic composition consisting of two parts is porous and permits controlled release of antibiotics and medicines into the surrounding bone and tissue.EFFECT: low temperature of the exothermic effect during curing, the adhesion of the composition of bone cement that prevents, in particular, tissue necrosis, and the provision of the porous bone cement provides the cement mechanical properties matching the characteristics of the surrounding bone.28 cl, 16 tbl, 79 ex
Treated fillers, compositions containing them, and products made from them // 2640075
FIELD: technological processes.SUBSTANCE: process comprises of (a) treating a suspension, which includes an untreated filler, that is not pre-dried, using a treating agent, thereby making a suspension of the treated filler, and (b) drying the treated filler suspension to produce a treated filler. The treating agent contains a polymer that has (i) the first group, which interacts with a raw filler, and (ii) the second group, which interacts with the rubber matrix, which incorporates the treated filler.EFFECT: invention improves compatibility of the filler with the polymer matrix, improves the technological viscosity and prevents the phase separation of fillers with high specific surface area and of the polymer matrix that improves dynamic and mechanical properties of rubber tires of light vehicles and truck tires.25 cl, 25 tbl
Allylamine-containing polymers with end carbinol groups // 2640041
FIELD: chemistry.SUBSTANCE: copolymer of butadiene and styrene is provided, containing at the beginning of the polymer chains tertiary amino groups of the formula (Ia) or (Ib), where R1, R2 are the same or different and are alkyl radicals, and also contain silane-containing carbinol groups of the formula (III) at the ends of the polymer chains or their metal salts or salts of semimetals, where R3, R4, R5 and R6 are the same or different and are hydrogen or an alkyl, alkaryl and aralkyl radical, A is a divalent organic radical, which may contain, in addition to carbon and hydrogen atoms, heteroatoms such as oxygen, nitrogen, sulfur and/or silicon. A method of producing these copolymers and variants for their use, including for the production of tires and various shaped articles, are also provided.EFFECT: copolymer according to the invention is well-developed and allows the production of tires and moulded articles with the improved performance characteristics.22 cl, 2 tbl, 3 ex

Simple ethers of cellulose that have increased thermal strength of gel // 2640024
FIELD: chemistry.SUBSTANCE: invention relates to a thermogel forming composition, which is produced by combining nanocrystalline cellulose with cellulose ethers. This mixture can be used as a binder in a variety of different cases, for example, in food and raw ceramics. It can also be used to manufacture capsule shells for pharmaceuticals.EFFECT: inventionprovides increased gel strength at a high temperature.12 cl, 1 tbl, 5 ex, 4 dwg
ethod for analyzing aging and method of determining chemical state // 2639914
FIELD: physics.SUBSTANCE: method for analyzing the aging of a rubber mixture includes irradiating a rubber composition with a metal coating formed on it with a thickness of 100 Ǻ or less high intensity X-rays having an energy in the range of 4000 eV or less, and measuring the X-ray absorption from absorption spectra for the aging analysis of a rubber compound for a tire.EFFECT: accuracy of the evaluation of the chemical state of the rubber surface during aging increases.8 cl, 10 dwg, 5 tbl
Polymer-bitumen binder for road surface and method for production thereof // 2639902
FIELD: chemistry.SUBSTANCE: method for the production of a polymer-bitumen binder is to be introduced into the bitumen at a temperature of 140-150°C a mixture of tar with a conventional viscosity at 80°C 60-300 s and the distillate fraction 540-610°C at a ratio of 3:1, in an amount of 30-60 wt % of the composition, and then a block copolymer of alkadiene and styrene in an amount of 3.0-3.5 wt %, until complete dissolution.EFFECT: method increases the degree of homogenisation of bitumen compositions, thus widening the operating range thereof, which is characterised by softening temperature and brittleness temperature, reduces specific energy consumption when producing polymer-bitumen binder, as well as a cost thereof.2 cl, 1 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
 
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