Dyes and paints and polishes and natural resins and adhesives and compositions not otherwise provided for and applications of materials not otherwise provided for (C09)

C   Chemistry; metallurgy(315514)
C09            Dyes; paints; polishes; natural resins; adhesives; compositions not otherwise provided for; applications of materials not otherwise provided for(20029)

Anthocyan colouring composition // 2628398
FIELD: chemistry.SUBSTANCE: colouring composition having a blue colour contains one or more anthocyans; metal ions of Fe (II), tannic acid as a stabiliser, in which the molar ratio of metal ions to anthocyanins is, at least, 0.5:1, and the molar ratio of stabiliser to anthocyanin is, at least, 0.5:1. The method for preparing a colouring composition having a blue colour comprises adjusting the pH of the anthocyan solution to a value between 3.5 and 8.0 before addition of Fe (II) metal ions and tannic acid as a stabiliser. Herewith the ratio of metal ions to anthocyanins is, at least, 0.5:1, and the molar ratio of stabiliser to anthocyanin is, at least, 0.5:1. The invention relates to the composition comprising a colouring composition, in which the pH is in the range of 3.5 to 8.0 and the composition is blue or green.EFFECT: improving the compound properties.13 cl, 1 dwg, 16 tbl, 9 ex

ultilayer composition, film and corresponding methods // 2628388
FIELD: physics.SUBSTANCE: multilayer structure contains a printing film and a pre-pressable film. The printing film comprises a printing layer and a carrier layer. In one embodiment, the print film further comprises an adhesive layer. In another embodiment, the print film further comprises an anti-adhesive patch. The printing layer comprises a polymeric material and a silicone additive. The material to be pre-pressed contains a polymeric material. The material to be pre-pressed may further comprise a functional material.EFFECT: environmentally friendly multi-layer structure provides improved printing properties.15 cl, 1 tbl, 7 dwg, 1 ex
Phenol additive for electrodepositable coating composition containing cyclic guanidine // 2628379
FIELD: chemistry.SUBSTANCE: electrodepositable coating composition comprising a reaction product of an epoxy functional polymer and cyclic guanidine and a source of unreacted phenol are described. This electrodepositable coating composition exhibits a Coulomb consumption of less than 100 coulomb/gram, when applied to an electrically conductive substrate at a current density of ≤1.5 mA/cm2. A substrate and a method for coating a metal substrate are also described.EFFECT: electrodeposited coatings containing cyclic guanidine are produced, which are effectively and in sufficient quantity applied to the substrate.22 cl, 11 tbl, 1 dwg, 11 ex

icroencapsulated fire extinguishing agent and method of its obtaining // 2628375
FIELD: fire safety.SUBSTANCE: describes a microencapsulated fire extinguishing agent comprising, in each microcapsule, a polymeric shell and a core containing as carrier gas components having a boiling point of -155 to +10°C, a flame retardant and a combustion inhibitor in a weight ratio: a carrier gas of 5-50%, a flame retardant of 30-70%, a flame retardant of 1-25%. A method for the preparation of microcapsules is also described.EFFECT: microencapsulated fire extinguishing agent with high reliability and fire-extinguishing efficiency was obtained.19 cl, 1 tbl, 8 ex
Stimulator of oil-bearing formation productivity // 2628355
FIELD: oil and gas industry.SUBSTANCE: stimulator of oil formation productivity serving as an additive to the process fluids contains, wt %: an inorganic salt or a mixture of salts of at least 70; nonionic or cationic surfactant with demulsifying and hydrophobizing properties, or a mixture of said surfactants of at least 1; acid is not less than 3; sodium gluconate is not less than 1.EFFECT: stimulation of oil and gas-bearing formation productivity by combining technological operations with gentle rock processing allowing to increase the phase permeability, hydrophobicize the treated surface, remove capillary-bound water from the pores of the formation, remove sediments and prevent their further formation.3 cl, 4 tbl

ethod for complex hydrogen thermo-barochemical processing of production formation // 2628342
FIELD: oil and gas industry.SUBSTANCE: method of complex hydrogen thermo-barochemical treatment of the bottomhole zone of a production formation includes separate and sequential delivery to the bottomhole through the tubing of hydro-reactive compositions based on aluminium hydride sodium composite and combustible-oxidizing compositions based on complex salts. The injection of the first mixture of combustible-oxidizing and hydro-reactive compounds with a density of 1.35-1.4 g/cm3 with filling of production string volume from bottomhole to lower perforations level. On top of the first mixture an aggregate-stable nanosuspension of hydro-reactive composition of density 1.23-1.25 g/cm3 with a content of 5-50% of the dispersed phase of aluminium hydride sodium composite in the dispersion medium of diesel fuel and organic solvent with quantitative content of the liquid phase components taken in proportional ratio providing the equality of the densities of the liquid and solid phases of nanosuspension which is injected at the predetermined value of formation porosity exceeding in the volume of the production string of the perforation zone interval followed by setting of aggregate-stable nanosuspension of hydroreactive composition directly to the bottomhole zone of the production formation. The second mixture of combustible-oxidizing and hydro-reactive compounds with a density of 1.6-1.8 g/cm3 in volume sufficient to effectively react with the first mixture of the fuel-oxidizing and hydro-reactive compounds.EFFECT: increase processing efficiency in order to increase the permeability of the bottomhole formation zone, reduce the skin factor and increase the performance of well, possibility to use it for hard-to-recover oil and gas reserves.2 cl, 3 dwg
Hydrophilic thermoreversible pressure-sensitive adhesive composition // 2627896
FIELD: chemistry.SUBSTANCE: invention relates to hydrophilic thermoreversible pressure-sensitive adhesive (PSA) compositions and can be used as a biomedical adhesive for application to the skin and in the field of drug delivery systems, medical skin coatings and wound healing products that are easily and painlessly removed from the skin surface in a warm bath. The composition consists of hydrophilic film-forming polymer having a lower critical mixing temperature (LCMT) and complementary short-chain non-covalent oligomeric crosslinker of the film-forming LCMT-polymer. The hydrophilic polymer and oligomeric crosslinker are capable of hydrogen bonding to each other and are contained in the ratio that determines such characteristics of the composition as adhesion bond strength, cohesive strength, and hydrophilicity. At room temperature in the aqueous medium, the adhesive shows tack to the hydrophilic substrates and reversibly detaches from them when the temperature rises above the LCMT. The adhesive does not exhibit tackiness to hydrophobic substrates at ordinary temperature, but acquires it in aqueous medium when the temperature rises above the LCMT. The transition from non-tacky to sticky state is controlled by the temperature and amount of absorbed moisture. It is completely reversible.EFFECT: improvement of composition properties.30 cl, 17 dwg, 7 ex, 1 tbl

ethod for producing waterproof carbon-containing coating for details from chemically active material // 2627884
FIELD: chemistry.SUBSTANCE: method involves preparing the powdered polymer material to produce a predetermined dispersion fraction, applying the polymeric material to the heated part in a vibro-vortex method. Before applying the polymer coating, the coated part is fixed on a support, then heated, a "fluidized bed" is formed from the particles of the starting polymer material, which is a composition from a mixture of high-pressure polyethylene with a dispersion of not more than 315 mcm, technical carbon and heat stabiliser from among the derivatives of aromatic phenols or secondary aromatic amines, with the following ratio of ingredients, wt %: technical carbon - 1.5-2, thermal stabiliser - not more than 2, high-pressure polyethylene - the rest. The heating of the part is carried out under certain conditions and the thickness of the coating is controlled, varying the multiplicity of immersion of the articles to be coated in the mass of the "fluidized bed" of weighted particles and the time that the products are in the said medium until the specified coating thickness is reached.EFFECT: ensuring the possibility of producing a reliable waterproof coating on chemically active materials, increasing the resistance to embrittlement of the coating at operating temperatures of parts close to the temperature of destruction of the polymer coating, simplifying the method.2 dwg, 3 ex

odified technical carbon, which has low quantity of pah containing its elastomers // 2627877
FIELD: chemistry.SUBSTANCE: modified furnace black carbon has an annealed surface attached and/or adsorbed to at least one chemical group and has a statistical surface area (STSA) of 70-250 m2/G and the content of polyaromatic hydrocarbons (PAH) from the PAH22 group in amount of 75 ppm or less. This chemical group may be triazole, pyrazole, imidazole or combinations thereof, for example 1,2,4-triazol-3-yl group, 3-mercapto-1,2,4-triazol-5-yl group. The surface of carbon black can be annealed at 1200-1800°C in the process of its production from the feedstock or to apply the same temperature to the ready-made technical carbon with the indicated PAH content and then to attach and/or adsorb the mentioned chemical group. The modified carbon black is introduced into the elastomeric composition prior to vulcanization.EFFECT: invention makes it possible to increase the abrasive wear resistance of the elastomeric composition and to reduce its hysteresis.102 cl, 2 dwg, 5 tbl, 5 ex
Electroconductive composite substrates coated with compositions of electrodepositable coatings, and methods of their production // 2627867
FIELD: chemistry.SUBSTANCE: invention relates to a coated substrate comprising: A) an electroconductive composite substrate comprising a resin matrix reinforced with fibers, and B) a cured coating layer electrophoretically applied to, at least, a portion of the substrate surface, wherein the cured coating layer is deposited from the composition of the curable electrodepositable coating comprising: (1) a resin component comprising a cationic or anionic resin with active hydrogen, comprising acrylic, polyester, polyurethane and/or a polyepoxide polymer; and (2) a hardener. The invention also relates to the method for coating a plastic electroconductive substrate, including electrophoretic deposition on the substrate of the curable electrodepositable coating composition described above, and heating the coated substrate to a temperature of less than 250°F for a time period sufficient to cure the electrodepositable coating on the substrate.EFFECT: improving the composition properties.20 cl, 1 tbl

Composite particles including fluoropolymer, methods of production and products including them // 2627857
FIELD: chemistry.SUBSTANCE: composite particles include individual, hollow, ceramic spheroids and a fluoropolymer layer. The fluoropolymer is a homopolymer or copolymer of perfluoroalkyl vinyl ether; perfluoroalkoxy vinyl ether; at least one fluoroolefin, independently represented by the formula C(R)2=CF-Rf, wherein Rf is fluorine or a perthoroalkyl having from 1 to 8 carbon atoms and R is hydrogen, fluorine or chlorine; or a combination thereof. The composite material includes a plurality of composite particles distributed in the matrix material. The matrix material comprises at least one of the following materials: polyethylene, polypropylene, silicone rubber, polystyrene, epoxy or phenolic.EFFECT: obtaining syntactic foams for insulation, for example, deep-water insulation, with increased strength, used, for example, in oil and gas production.21 cl, 4 dwg, 3 tbl, 8 ex
ethod for obtaining red food colouring from vegetable raw materials // 2627851
FIELD: food industry.SUBSTANCE: method involves drying the initial raw materials by the convection method and grinding it to the average size of 3-4 mm. The ground product is extracted in two stages for 30 minutes, each with the 0.3% aqueous solution of citric acid at 75-80°C. The water duty at the first stage is 1:8, at the second one - 1:4. The extracts are separated and mixed. The mixed extract is concentrated by evaporation under vacuum to the dry substances content of 30% by a refractometer, filtered, poured into glass bottles and pasteurized. The proposed method allows to obtain a valuable red colouring with the yield of tanning and colouring substances of 26.4% to the dry substance of the extract.EFFECT: highest content of anthocyanins, biologically active and flavouring substances.1 tbl
Oil and gas well killing fluid // 2627807
FIELD: oil and gas industry.SUBSTANCE: oil and gas well killing fluid, containing a water base, a polysaccharide gelling agent, a borate crosslinker, contains guar gum and xanthan gum as a polysaccharide gellant at the following component ratio, wt %: guar gum - 0.65-0.75, xanthan gum - 0.09-0.11, borate crosslinker - 0.35-0.45, water - the rest.EFFECT: improved rheological, pseudoplastic properties, increased fluid stability with minimal impact on the permeability of the bottom-hole zone.1 ex, 2 tbl
Composition for enhanced oil recovery // 2627802
FIELD: chemistry.SUBSTANCE: composition for enhanced oil recovery contains a surfactant, boric acid, sodium tetraborate - Na2B4O7⋅10H2O drill⋅ and water, contains a complex surfactant Neftenol VVD or a mixture of an nonionic surfactant - neonol AF 9-12, or NP-40, or NP-50 and an anionic surfactant - volgonate, or sulfonol, or NPS-6 in a 2:1 ratio, as a surfactant, and additionally - carbamide and glycerin at the following ratio of components, wt %: the said complex surfactant 1.0-4.0, boric acid 1.0-10.0, sodium tetraborate 1.0-10.0, urea 5.0-10.0, glycerol 10.0-70.0, water - the rest.EFFECT: increased buffer capacity of the composition in the optimal pH range for oil displacement, where the surfactants are chemically stable and have the maximum detergency.9 ex, 2 tbl, 5 dwg

ethod and liquid for improvement of permeability of sandstone formations by chelating agent // 2627787
FIELD: oil and gas industry.SUBSTANCE: sandstone formation treatment method includes injecting into the formation a fluid containing 5-30% by weight of the total amount of glutamic liquid N,N-diacetic acid or its salt (GLDA), 0.1-2% by volume of corrosion inhibitor, 0.01-5 % by volume of surfactant and, optionally, a common solvent. The surfactant is a non-ionic or anionic surfactant and has a pH value of between 1 and 14.EFFECT: improved permeability of sandstone formations, biodegradability and high acidity without the formation of processing fluid scale.20 cl, 9 dwg, 3 tbl, 10 ex
Plastic composition for formation water inflow insulation in well and stabilizing of producing formation and method of its application // 2627786
FIELD: oil and gas industry.SUBSTANCE: method of formation water inflow insulation in the well and stabilising of the producing formation is to inject the silicon containing composition with the aqueous solution of the inorganic cross-linker and the plasticiser, while the organosilicone oil soluble or water soluble substance or silicone based substance is used as the silicone containing substance with the following component ratio, wt %: 55-89 of the organosilicone oil soluble or water soluble substance or silicone nonorganic substance, 10-40 of nonorganic crosslinker water solution, plasticiser 1-5.EFFECT: improvement of the formation water inflow insulation in the well and stabilising of producing formation with the adjustable mechanism for curing of the injected composition at low and high temperatures.4 cl, 5 tbl, 5 ex
ethod for regulating intake capacity profile of pressure well (versions) // 2627785
FIELD: oil and gas industry.SUBSTANCE: method for regulating intake capacity profile of a pressure well, including the preparation and injection of gel-forming composition into formation, comprising xanthan, chromium acetate, surfactant - SAS and water, and a process exposure for formation of gel, the intake capacity of the pressure well is predetermined. According to the first one version, with intake capacity of 150-300 m3/day before injecting the gel-forming agent, perform injection of aqueous solution rim of alkaline reagent with a concentration of 0.05-5.0 wt % of 5-10 m3 in volume, then the gel-forming composition is added, additionally comprising a bactericide-formalin or glutaraldehyde, with a content of components, wt %: xanthan - 0.2-0.4, chromium acetate - 0.02-0.04, surfactant - 0.1-0.2, bactericide - 0.05-2.0, the rest is fresh water. After that inject aqueous solution rim of alkaline reagent and a surfactant containing, wt %: alkaline reagent - 0.1-2.0, surfactant - 0.005-3.0, the rest is water with mineralization 0.15-300 g/l, at volume ratio of gel-forming composition to aqueous solution rim of alkaline reagent and surfactant, chosen depending on the intake capaity of the pressure well and equal to 1: (0.5÷3), force said rim into the formation with water with mineralization of 0.15-300 g/l in a volume of 10-15 m3 and stop the well for a technological exposure for 2 to 5 days. According to the second version, with intake capacity of 300-500 m3/day before injecting the gel-forming agent, an aqueous solution rim of an alkaline reagent with a concentration of 0.05-5.0 wt % of 10-20 m3 in volume, inject a gel-forming composition, additionally comprising a bactericide-formalin or glutaraldehyde, with a content of components, wt %: xanthan - 0.3-1.0, chromate acetate - 0.03-0.1, surfactant - 0.15-2.0, bactericide - 0.05-2.0, the rest is fresh water. After that inject aqueous solution rim of alkaline reagent and surfactant at their content, wt %: alkaline reagent - 0.1-2.0, surfactant - 0.005-3.0, the rest is water with mineralization 0.15-300 g/l, at the volume ratio of gel-forming composition to said rim, chosen depending on the intake capacity of the pressure well and equal to 1:(2÷4), force said rim into the formation with water with mineralization of 0.15-300 g/l in a volume of 10-15 m3 and stop the well for a technological exposure for 2 to 5 days. According to the third version, with intake capacity of 500-600 m3/day preliminary inject 50-100m of a dispersion composition rim into the formation, then an aqueous solution rim of alkaline reagent with concentration of 0.05-5.0 wt % of 20-30 m3 in volume, after that inject gel-forming composition, additionally comprising a bactericide-formalin or glutaraldehyde and a polymer, with a content of components, wt %: xanthan - 0.5-2.0, chromate acetate - 0.05-0.2, surfactant - 0.5-4.0, bactericide - 0.05-2.0, polymer - 0.1-1.0, the rest is fresh water. After injecting the gel-forming agent, perform injection of aqueous solution rim of alkaline reagent and surfactant at their content, wt %: alkaline reagent - 0.1-2.0, surfactant - 0.005-3.0, the rest is water with mineralization of 0.15-300 g/l, at the volume ratio of gel-forming composition to said rim, chosen depending on the on the intake capacity of the pressure well and equal to 1:3, force said rim into the formation with water with mineralization of 0.15-300 g/l in volume of 10-15 m3 and stop the well for a technological exposure for 4 to 12 days. Use sodium hydroxide or trisodium phosphate, or sodium liquid glass as alkaline reagent, a dispersed composition rim as aqueous dispersion of the filler with a concentration of 0.01-10.0 wt % or an aqueous dispersion of the filler and polymer with a component ratio, wt %: filler - 0.01-10, polymer - 0.005-1.0, the rest is water with mineralization 0.15-300 g/l, dolomite or wood flour, or bentonite clay powder used as a filler, as polymer - polyacrylamide or sodium carboxymethylcellulose, or hydroxyethylcellulose, said oxyethylated alkylphenols used as surfactant.EFFECT: increased formation recovery, increased efficiency of formation coverage with impact and expansion of technological capabilities of the method.3 cl, 4 tbl
Dicationic ionic liquids with polysiloxane fragment in cation structure as coolants // 2627658
FIELD: chemistry.SUBSTANCE: dicationic ionic liquids with a polysiloxane fragment in a cation structure of general formula where R1 and R2 - methyl or phenyl, R3 - CH2 and (CH2)3, n=3-8, as coolants. The properties of the produced ionic liquids (IL) allow to use them in open outer space as coolants. They also have physico-chemical and thermophysical characteristics (viscosity, density, volatility, heat capacity and thermal conductivity) necessary for their use as coolants.EFFECT: proposed new dicationic ionic liquids with a polysiloxane fragment in the cation structure of general formula I are liquid at normal conditions and have a lower saturated vapor pressure in high temperature region as compared to the prototype and with other known coolants, which ensures their explosion safety and significantly low volatility in the dynamic vacuum.1 tbl, 6 ex
Development method of non-homogeneous oil formation with use of polymer-dispersed composition // 2627502
FIELD: oil and gas industry.SUBSTANCE: in a development method of non-homogeneous oil formation comprising injecting an aqueous polymer dispersion containing polyacrylamide-PAA, a cross-linking agent and a micro-reinforcing additive into the well, and squeezing it to the formation with water, a polymer composition containing, wt %: partially hydrolysed PAA 12.00-17.00, microsilica or microcalcite is the rest, chromium (III) acetate or a cross-linking composition is used as a cross-linking agent, wt %: chrome (III) acetate 2.00-10.00 and 20.0-23.0% hydrochloric acid is the rest, the noted composition being obtained by introducing into the water of fresh or mineralized water with a density of up to 1.012 g/cm3 of the noted polymer composition containing microsilica, while stirring it to complete hydration of the PAA and then introducing a chromium (III) acetate crosslinking agent or the noted cross-linking composition upon pumping into the well, with the following component ratio, wt %: the noted polymeric composition containing microsilica 1.0-7.0, chromium (III) acetate 0.01-0.1 or the noted cross-linking composition 0.5-1.5, the noted water is the rest, or introducing into the water of fresh or mineralized water with a density of up to 1.012 g/cm3 of the noted polymeric composition containing a microcalcite, while stirring it to complete hydration of the PAA and then introducing a chromium (III) acetate crosslinking agent upon pumping into the well, at the following component ratio, wt %: the noted polymer composition containing a microcalcite of 1.0-7.0, chromium (III) acetate 0.01-0.1, the noted water is the rest.EFFECT: increased homogeneity of the composition and provided possibility of adjusting the cross-linking time.2 tbl, 9 ex
Epoxy adhesive binder and film glue on its basis // 2627419
FIELD: chemistry.SUBSTANCE: epoxy adhesive binder contains components at the following ratio, wt %: liquid epoxyoxazolidone resin (50.0-77.0), polyethersulfone (6.0-20.2), a solid epoxy resin based on bisphenol A (4.95-23.50), a latent curing agent (4.0 -6.0) of dicyandiamide, a cure accelerator - asymmetrically disubstituted urea (0.5-2.0), aerosil modifier (0.3-5.0). The film glue is a paper with anti-adhesive coating and a layer of epoxy adhesive binder applied thereto, the surface density of the layer of the said binder on the release coating is 200-270 g/m2.EFFECT: increasing the strength of adhesive bond with uniform separation of the skin from the honeycomb core, increasing the degree of the temperature preservation of the cured adhesive binder glass transition after exposure in the heat-water chamber at a temperature of 70 degrees and a humidity of 85 percent for 30 days, the ability to cure the adhesive epoxy binder for more energy-efficient mode.9 cl, 3 tbl, 12 ex
Abrasive powder for processing surfaces and its application // 2627413
FIELD: chemistry.SUBSTANCE: abrasive powder consists of converter slag of metallurgical manufacture and contains 96-99.9 wt % of a compound mixture: portlandite (CaO⋅H2O), magnetite (Fe3O4), brucite (Mg (OH)2), calcite (CaCO3), spermite (2Ca2SiO4⋅CaCO3), calcium aluminate (5Ca⋅O3Al2O3), spinel (MgAl2O4), periclase (MgO), calcium silicate (Ca2SiO4) and 0.1-4 wt % of elements such as S and/or Mn, and/or Cr, and/or Zn, and/or Ti, and/or V. At least, 95 wt % of the powder particles are isometric and the remaining particles have a non-isometric elongated shape.EFFECT: increasing the efficiency and quality of surface treatment by increasing the strength of abrasive powder.2 cl, 3 tbl
Dispersions of graphene carbon particles and method for their production // 2627411
FIELD: chemistry.SUBSTANCE: dispersions of graphene carbon particles are obtained using a polymeric dispersant. The polymeric dispersant includes an anchor block containing glycidyl(meth)acrylate, 3,4-epoxycyclohexylmethyl(meth)acrylate, 2-(3,4-epoxycyclohexyl)ethyl(meth)acrylate, allyl glycidyl ether and mixtures thereof reacted with a carboxylic acid comprising 3-hydroxy-2-naphthoic acid, paranitrobenzoic acid, hexanoic acid, 2-ethylhexanoic acid, decanoic acid and/or undecanoic acid. The polymeric dispersant also includes at least one tail block containing at least one (meth)acrylic acid alkyl ester.EFFECT: provision of increased electrical conductivity.20 cl, 3 dwg, 5 tbl

Cover composition, method of coating cover, coated substrate, packaging material and packaging for liquid // 2627404
FIELD: chemistry.SUBSTANCE: surfactant is a water-soluble non-ionic ethoxylated alcohol of the formula RO(CH2CH2O)xH, wherein R is iso-C13H27 and x is 8 or R is iso-C10 and x is 5 or 7. The solids content in the composition is from 4 to 20 wt %. A method for applying a gas impermeable layer to a substrate using a coating composition and a coated substrate having at least one gas impermeable layer obtained by applying a coating composition to the substrate is also described. In addition, the present invention relates to a packaging material comprising a coated cardboard on which a coating composition is applied and a liquid package containing such a packaging material.EFFECT: ensuring the stability of the coating applied by the irrigation at a value of dynamic surface tension up to 50 mN M and ensuring faultless operation at very low flow rates, high quality protection combined with an acceptable small number of point defects.14 cl, 8 dwg, 1 tbl
Sliding coating for medical devices with a small quantity of microparticles // 2627390
FIELD: chemistry.SUBSTANCE: coating for the medical device comprises a first layer comprising polyvinylpyrrolidone, derivatized with a photoreactive benzophenone group; and a first cross-linking agent comprising at least two photoreactive groups; second layer disposed on the first layer comprising polyvinylpyrrolidone derivatized with a photoreactive benzophenone group; second cross-linking agent comprising at least two photoreactive groups; and a polymer comprising a polyacrylamide, the polymer being derivatized with at least one photoreactive group; and wherein the first and second cross-linking means comprising at least two photoreaction groups have the formula Photo1-LG-Photo2, where Photo1 and Photo2 independently represent a photo-reactive benzophenone group, and LG is a cross-linking group containing at least one silicon atom or at least one phosphorus atom; wherein there is a covalent bond between at least one photoreactive group and a crosslinking group, wherein the covalent bond between the at least one photoreactive group and the crosslinking group is interrupted by at least one heteroatom selected from the group consisting of oxygen, nitrogen or sulfur.EFFECT: improved coating properties.41 cl, 13 dwg, 2 tbl, 9 ex

Scintillator // 2627387
FIELD: physics.SUBSTANCE: invention relates to a scintillator that can be used as an X-ray detector in medicine, when inspecting things at airports, inspecting cargo in ports, in oil prospecting. The scintillator contains a CsI crystal as its base and Tl, Bi and O, wherein the concentration a Bi with respect to Cs in the crystal is 0.001 atomic million-1 ≤a≤ 5 atomic million-1; and the ratio (a/b) of the concentration a Bi with respect to Cs in the crystal to the concentration of b O with respect to I in the crystal is of 0.005⋅10-4 to 200⋅10-4.EFFECT: scintillator has a high output at high afterglow characteristics.2 cl, 4 dwg, 1 tbl, 12 ex
Chromium-free magnesium vanadate containing anti corrosive paint composition and paint films obtained by coating the same // 2627385
FIELD: chemistry.SUBSTANCE: describes a chromium-free paint composition that includes a film-forming resin (A), an anticorrosive pigment (B) that contains at least one kind of amorphous MgO-V2O5 based compound, and a crosslinking agent (C) in which the ratio by mass content of the above-mentioned anticorrosive pigment (B) is from 10 to 80 wt % with respect to the sum of the solid fraction of the resin of the above resin film forming resin (A) and the above cross-linking agent (C), the content of the total amount of eluted ions in the 10% aqueous solution of the above-mentioned anticorrosive pigment (B) is from 10 ppm up to 100 ppm also described is a paint film that was obtained by the application of a chromium-free paint composition.EFFECT: chromium-free paint composition is obtained, and it has an increased corrosion resistance.8 cl, 8 tbl, 34 ex

New materials and methods for dispersing nanoparticles in matrices with high quantum outputs and stability // 2627378
FIELD: physics.SUBSTANCE: first, luminescent nanoparticles are mixed, the outer surface of which is covered with two types of protective molecules, with a solid polymer precursor. Protective molecules contain the first and second functional groups. The first functional group is connected to the outer surface of the luminescent nanoparticle, and the second functional group provides a miscibility with the precursor of the solid polymer and/or the ability to react with it. The first functional group of the first type of protective molecules contains a metal ion having coordination functionality, and the first functional group of the second type of protective molecules has the functionality of a Lewis base. A polymeric article, for example a coating, a self-supporting layer or a plate transmitting light with a wavelength of 380-750 nm is produced from the resulting solid polymer with embedded luminescent nanoparticles. The lighting device comprises a light source and a light transducer including mentioned solid polymer. Any luminescent nanoparticles can be used in the invention.EFFECT: stability of nanoparticles and the colour purity are improved, the luminescence efficiency is increased and the lifetime is increased.16 cl, 8 dwg

Optic composite material and method for treatment thereof // 2627371
FIELD: physics.SUBSTANCE: material comprises a suspension of lead sulfide nanoparticles in the aqueous-alcoholic solution, metal nitrate and polyvinylpyrrolidone. Also the method is disclosed for treating a material, which comprises material irradiation by the electromagnetic radiation with the wavelengths of 455-635 nm and subsequent exposure at the room temperature without irradiation during 0.1-24 hours.EFFECT: developing a composite material having high nonlinear optical and spectral fluorescent characteristics in the visible and near infrared spectral range, developing a high-performance method of processing the material, which does not require special manufacturing equipment.2 cl, 9 dwg, 2 tbl, 5 ex

Fire-resistant material containing biopolymer // 2627363
FIELD: chemistry.SUBSTANCE: flame retardant material comprises a matrix formed by at least one organic polymer, a flame retardant additive selected from among metal hydroxides, and a binder forming an interface between the matrix and the flame retardant additive. The organic polymer in the matrix contains at least 50 wt % of one biopolymer. The binder is an ethylene-vinyl acetate copolymer containing at least 40 wt % of vinyl acetate grafted with maleic anhydride.EFFECT: resulting material is flexible and shockproof and can be processed by moulding or extrusion, in particular by injection moulding.15 cl, 3 dwg, 7 tbl
Perchlorates 1,3,3-trimethilspiro[chromene-2,2'-indoline] with photochromic properties // 2627358
FIELD: chemistry.SUBSTANCE: invention relates to novel compounds in the series of indoline spiropyrans, namely 1',3',3',6-tetramethyl-8-[(1,3,3-trimethylindol-1-yum-2-yl)vinyl]spiro[chromene-2,2'-indoline] perchlorate 1 and 8-methoxy-1',3',3', -trimethyl-6-[(1,3,3-trimethylindol-1-yum-2-yl) vinyl]spiro[chromene-2,2'-indoline] perchlorate 2 . New salt derivatives of 1,3,3-trimethylspiro [chromene-2,2'-indoline] 1 and 2 exhibit photochromic properties in the long-wave region of the spectrum with λ= 728 nm and λ= 466 and 668 nm, respectively, and have an open life of 8.4 s for connection 1 and 118.6 and 80.5 s for connection 2. The compounds can be used to create organic magnets with controlled characteristics as a cationic functional constituent with complex metal oxalate anions, as a basis for information recording and reading systems, as well as molecular switches.EFFECT: improving the properties of compounds.2 cl, 1 tbl, 2 ex

Dispersion liquid for drilling and mineral resources recovery method by means of dispersion liquid // 2627060
FIELD: oil and gas industry.SUBSTANCE: dispersion drilling liquid is prepared by dispergation of the hydrolysable resinol material in the aqueous media, which contains the hydrolysable marginally resin, hydrolysable resin, accelerating the esters decomposition, and the hydrolysable resin, releasing the acid in the form of the polyoxalate. The downhole processing method includes the input operation of the above mentioned dispersion liquid into the downhole under the pressure to provide hydrolysis of the hydrolysable resin material in water at the temperature of at least 40°C.EFFECT: processing fluid decomposition under specific temperature conditions with its simultaneous cost cutting and the possibility to use it in the large quantities.12 cl, 1 dwg, 8 tbl
ethod for preventing soil erosion // 2626928
FIELD: agriculture.SUBSTANCE: group of inventions relates to the method for preventing the soil erosion, the method for preventing water runoff from the soil, as well as to soil that underwent anti-erosion treatment. The method consists in that the cationic guar is applied to the soil or introduced in the soil.EFFECT: increased efficiency of anti-erosion treatment.13 cl, 2 tbl

Adhesive for manufacturing bonfire // 2626861
FIELD: wood processing industry.SUBSTANCE: adhesive contains the following components, parts by weight: urea formaldehyde resin (100); acid hardener - ammonium chloride (0.55-0.6); modifier - oleic acid (1.0-1.75).EFFECT: uniform flaking of linen flax particles in the manufacture of flinders and increasing the physical and mechanical characteristics of the finished product, ensuring the safety of preparation and use of adhesive composition, is ensured.2 dwg
Dryer for self-applicable coating compositions // 2626860
FIELD: chemistry.SUBSTANCE: composition includes a dehumidifier for self-oxidizing resin composition, drying in air, and a polymer comprising unsaturated aliphatic groups. Mentioned dehydrator is prepared by mixing the manganese salt with 1, 4, 7-trisubstituted-1, 4 ,7-triazacyclononane (L). The manganese salt has the general formula Mn2+[X]n, in which the anion X is selected from PF6-, SbF6-, AsF6-, BF4-, B(C6F5)4-, Cl-, Br-, I-, NO3- or R2COO-, in this case n=2, or the anion X is SO42-, where n=1, and where R2=C1-C20 Alkyl. In this case, 1,4,7-trialkyl-1,4,7-triazacyclononane (L) is present in the mixture in such an amount that the molar ratio of Mn:L is at least 1.25:1, preferably at least 1.5:1 and less than 20:1. The coating composition, the method for coating the substrate, the substrate coated with the composition, the use of the composition in paints, glues, varnishes, inks and varnishes and the use of a mixture of 1,4,7-trialkyl-1,4,7-triazacyclononan (L) and manganese salt as a dehumidifier for self-oxidizing resin composition, drying in air.EFFECT: providing non-cobalt catalysts for coating formulations containing them, and which simultaneously provide quick-drying coatings that have significant hardness and gloss properties.14 cl, 9 tbl, 3 ex
Bitumen compositions containing additives with improved thermo-reversible properties // 2626859
FIELD: chemistry.SUBSTANCE: bitumen composition contains bitumen, the first additive containing at least one functional group of a saturated or unsaturated fatty acid ester, linear or branched, having a hydrocarbon chain of 4 to 36 carbon atoms optionally substituted by at least one hydroxyl group, and the second additive containing at least one organic gellant. The invention also relates to application of a combination of the first and second additives in a bitumen composition to reduce the dynamic viscosity of the bitumen composition or bitumen base at a temperature higher than or equal to 80°C, preferably higher than 80°C, without impairing the consistency of the said composition at operating temperatures. Finally, the invention relates to the use of these bitumen compositions in the field of road applications, in particular, in production of road binders, and in the field of industrial applications.EFFECT: improved composition properties.17 cl, 2 tbl
Phosphorus, luminescent mixture and luminescent material // 2626856
FIELD: chemistry.SUBSTANCE: phosphorus, luminescent material and luminescent mixture for directly excited alternating current LED chips include luminescent material A with blue afterglow and yellow luminescent material B in a weight ratio (10-70):(30-90). The luminescent material A is at least one of Sr4Al14O25:Eu2+,Dy3+; Sr2MgSi2O7:Eu2+,Dy3+; CaS:Bi3+,Na+; CaS:Cu+,Na+ or CaSrS:Bi3+. The luminescent material B is at least one of Y2O3⋅Al2O3⋅SiO2:Ce⋅B⋅Na⋅P; Y2O2S:Mg,Ti; Sr3SiO5:Eu2+,Dy3+; Ca2MgSi2O7:Eu2+,Dy3+; CaS:Sm3+; YAG:Ce or Tb3Al5O12:Ce. Luminescent materials A and B are screened on a 500 mesh sieve. LED chips are blue with a wavelength of 460 nm, purple with a wavelength of 400 nm or ultraviolet radiation with a wavelength of 365 nm.EFFECT: inventions provide stability of luminescence with a slight attenuation of light.10 cl, 5 dwg, 3 tbl, 18 ex

Cover composition, method of coating cover, coated substrate, packaging material and packaging for liquid // 2626848
FIELD: chemistry.SUBSTANCE: invention relates to a gas impermeable cover composition suitable for a water-borne coating, in particular relates to a method of applying a gas impermeable layer to a substrate using a coating composition, a coated substrate, a packaging material comprising coated cardboard, and a liquid package containing such a coating packing material. The composition comprises a polymer and a surfactant, the polymer is selected from polysaccharides or a mixture of polysaccharides and polyvinyl alcohol. The above-mentioned polysaccharides are soluble, dispersible or suspended in water, and the surfactant is a water-soluble non-ionic ethoxylated alcohol, the solids content of the composition being 4 to 20 wt % and the surfactant having the formula RO(CH2CH2O)xH, wherein R is iso-C13H27 and x is 8 or more, or R is iso-C10 and x is 5, 6, 7, 8, or 11.EFFECT: obtaining a coating that is suitable for the food industry does not contain any toxic or harmful substances and which is safe to use.24 cl, 8 dwg, 1 tbl, 7 ex

Light-absorbing coating // 2626838
FIELD: physics.SUBSTANCE: invention relates to the technology of special coatings that have the ability to absorb electromagnetic radiation of a certain frequency range and used in various fields - in construction and industry for exterior coatings of buildings and equipment, as well as in military equipment for camouflage and masking tasks. The light-absorbing coating, providing the technical result achievement, includes the following functional components: epoxy resin, low-molecular polyamide, octyl ether, lead sulphide.EFFECT: invention provides a coating that has high adhesion to hard materials of a different chemical nature.2 cl, 1 dwg, 2 ex, 2 tbl
Compositions, containing magnesium oxide and amino acid // 2626830
FIELD: chemistry.SUBSTANCE: coating includes MgO, the amino acid and the film-forming resin. The method of the substrate coating includes applying of this coating to at least the part of the substrate. The coating is cured under the environmental conditions.EFFECT: corrosion protection and performance improvement.26 cl, 8 tbl, 24 ex
Antiscuff coating for threaded joint of pump-compressor and casing tubes and method of its production // 2626827
FIELD: chemistry.SUBSTANCE: antiscuff coating is made from the composition, containing the following components (in weight percent): the organic binder of 30%-60%, the solid lubricant of 30%-60%, the corrosion inhibitor of 6%-15%, the levelling agent of 0.01%-0.1%, the wetting agent 0.01%-0.1% and in addition the mixture of solvents. The organic binder is the liquid polyamide-imide resin with the solids content of 38-42%. The solid lubricant is any substance from the molybdenum disulphide and tungsten disulphide or the combination of molybdenum disulphide or tungsten disulfide with polytetrafluoroethylene. Preferably, the solid lubrication and the corrosion inhibitor are the surface-modified with the silane bonding agent. The antiscuff coating is obtained by spraying the coating on the surface of the threaded joint of pump-compressor and casing tubes, treated with phosphate; thus avoiding the environmental contamination with the heavy metal powder, contained in the threaded grease.EFFECT: production of coatings that have good antiscuff and anticorrosive properties.7 cl, 8 dwg, 16 ex
9-antracenates of lanthanides, showing luminescent properties, and organic leds on its basis // 2626824
FIELD: chemistry.SUBSTANCE: described 9-antracenates of lanthanides formula M (ant)3, where M is lanthanum and lanthanides, besides promethium Pm and cerium Ce, which exhibit luminescent properties. The complexes of ytterbium, erbium and neodymium luminesce in the infrared spectrum range, the lutetium and terbium complexes in the blue spectrum area, and the gadolinium complex Gd - in the green spectrum area. The organic light-emitting diode is also described, which includes the thin film of the mentioned lanthanide anthracenate as the emission layer. The quantum yield of the ytterbium complex is 1.3%, which is the high value for the lanthanide complexes, emitting in the infrared range. The lifetime of the neodymium, erbium, and ytterbium complexes is 17, 13, and 52 microseconds, which is the rather large value for the complexes of these metals.EFFECT: expansion of the lanthanide complexes range with luminescence and high efficiency of electroluminescence due to the ion luminescence of lanthanides, as well as the expansion of the organic light-emitting diodes range.9 cl, 2 tbl, 20 ex
Neutralizing material for reclamation of acidified soils // 2626646
FIELD: chemistry.SUBSTANCE: slag of ferrovanadium production by silicoaluminothermic method is used as a neutralizing material for reclamation of acidified soils of the plant containers.EFFECT: expanding the arsenal of neutralizing materials used for reclamation of acidified soils.2 tbl, 1 ex

ethod and composition for production of dry lyophilized forms of anthocyanins // 2626505
FIELD: biotechnology.SUBSTANCE: anthocyanin extract obtained from petals of a red curb rose, or chokeberry fruit, or nasturtium petals, purified by the sorption-desorption method using a sorbent is added to a polysaccharide matrix selected from agar-agar or maltodextrin, or arabinogalactan or carrageenan, at the following weight ratio: purified anthocyanins extract:polysaccharide matrix from 1:100 to 1:200, the mixture is stirred until a homogeneous mass is obtained, the resulting sample is frozen at a temperature of minus 18-20°C for at least 48 hours, after which lyophilization is carried out for 8-10 hours at a temperature of minus 50°C and a pressure of 0.1 mBar. The invention also relates to a composition for dry lyophilized forms of anthocyanins production by this method.EFFECT: production of dry forms of anthocyanins, readily soluble in water and having good preservation for at least six months, reduced loss of anthocyanins in the process of obtaining of a lyophilized form.2 cl, 1 dwg, 1 tbl, 9 ex
Composition and method of solid foaming agent preparation for liquid removal from the gas and gas condensate wells bottomholes // 2626475
FIELD: oil and gas industry.SUBSTANCE: composition for the solid foaming agent preparation to remove the liquid from the gas and gas condensate wells bottomhole, containing the surface-active agent-SAA, the urea, the carboxymethylcellulose-CMC, MORPEN is used as SAA, it represents the mixture of water- and oil-soluble alkyl sulfates and sodium sulfoethoxylates, at the following ratio of components, mass. %: MORPEN 24.9-28.4, urea 71.1-74.6, CMC 0.5-1.0. The method of the solid foaming agent preparation to remove liquid from the gas and the gas condensate wells bottomhole from the above mentioned composition, including the urea dissolving in the SAA MORPEN at the temperature of 80-90°C up to the formation of the true solution, the gradual introduction of the CMC into the obtained solution, while stirring, and then pouring of the resulted mixture into the moulds and completely curing of the composition.EFFECT: increase of the foaming capacity, provision of the effective liquid removal from the gas and gas condensate wells bottomhole at various salinity of the borehole fluid, over the wide range of the hydrocarbon phase, and keeping of the physical and chemical properties of the foaming agent at high temperatures.2 cl, 5 tbl, 4 ex
ethod for obtaining of organomodified montmorillonite with polyfluoroalkyl groups // 2626414
FIELD: chemistry.SUBSTANCE: method for obtaining of organomodified montmorillonite with polyfluoroalkyl groups involves treatment of natural montmorillonite with polyfluorinated alcohol with ultrasonic dispersion in a solvent at heating and ultrasound frequency of 40 kHz, followed by modified montmorillonite separation, washing and drying. The treatment is carried out with 1,1,3-trihydroperfluoropropanol-1 in n-heptane at 30°C at the following component ratio, wt part.: montmorillonite - 100.0; 1,1,3-trihydroperfluoropropanol-1 - 8.7; N-heptane - 200.0.EFFECT: increased hydrophobicity of organomodified montmorillonite and stability of forming organomineral complexes, which allows to provide polymers with improved thermal, light, wear and hydrolytic stability.1 cl

Polyurethane protective composition // 2626358
FIELD: chemistry.SUBSTANCE: composition of the two-component polyurethane film-forming composition consists of a polyol, a polyisocyanate prepared on the basis of 4.4'-diphenylmethane diisocyanate, ethyl acetate as a solvent. As a polyol component, a block copolymer of ethylene oxide and propylene oxide with a molecular weight of 2000-6000 is used, 1-10% of the hydroxyl groups of which are substituted for potassium-alcoholates. The composition further comprises γ-aminopropyltriethoxysilane, divalent metal chlorides CuCl2, CoCl2, MgCl2, NiCl2, CaCl2, toluene and acetone as additional solvents.EFFECT: protection of metal, wood, concrete from the negative impact of corrosive media, including ammonia vapors and hydrogen sulfide.2 tbl
ethod of producing acid-basic indicator for creating flexible ph-sensitive systems // 2626352
FIELD: chemistry.SUBSTANCE: method of producing an acid-basic indicator dye is described, the composition of which is characterized by the chemical formula C26H18N4S2O10Na2 for the creation of flexible pH-sensitive systems operating in the range of pH=6.0÷9.0, comprising the steps of diazotizing the disodium salt of 4,4'-diaminostilbene-2,2'-disulfonic acid diluted with hydrochloric acid, adding an aqueous solution of sodium nitrite with stirring and cooling in a quantity equivalent to amin and azocoupling of the previously prepared solution of the diazonium salt of disodium salt of 4,4'-diaminostilbene-2,2'-disulfonate and resorcinol in sodium hydroxide solution, with subsequent isolation and purification of the precipitate of dark brown colour.EFFECT: dye with improved consumer, technological, economic quality of dyeing is obtained: low production cost, high degree of dye use and strength of the resulting colour, fast response time, stability during sterilisation, storage stability.1 cl

Prevention method of sand recovery, when operating oil production wells // 2626097
FIELD: oil and gas industry.SUBSTANCE: two reagents are pumped into the oil production well. In this case, the granular magnesium is used as reagents, mixed on the dry crude oil in the ratio 50 kg of Mg per 1m3 of dry crude oil, and 24% hydrochloric acid solution. At that in the beginning the granulated magnesium is pumped into the oil production well, which is mixed on the dry crude oil. After that the intermediate shock reducer is created, pumping 0.3 m3 of commercial oil into the oil production well. Then the hydrochloric acid solution is pumped through the intermediate shock reducer at the pressure of 20-70 atm. In this case, the molar ratio of magnesium to hydrochloric acid is in the range from 1:2.25 to 1:2.70.EFFECT: efficiency increase of the sand recovery level reduction.1 ex, 4 dwg
Complex silicate of rare-earth elements in nanoamorphic state // 2626020
FIELD: medicine.SUBSTANCE: invention can be used in biomedicine for blood vessels visualization, in electronics for up-conversion transducres in silicon solar batteries cells. The complex silicate of rare earth elements in an nanoamorphous state has the composition Sr2Y(8-x-y)YbxErySi6O26, where 0.05≤x≤1; 0.01≤y≤0.2 is the up-conversion phosphor of red light with a high degree of radiation.EFFECT: green radiation intensity is reduced.3 ex
ethod for quick freezing of vegetable semi-finished products // 2625982
FIELD: food industry.SUBSTANCE: method for quick freezing of vegetable semi-finished products consists of the mixture of fruits and vegetables weighing 400 g and packed airtightly under vacuum into the film, will be implemented by immersing the package with the product in a coolant consisting of 45% propylene glycol solution of 40 wt % and 11% aqueous NaCl solution of 60 wt % with the temperature of -30°C with the subsequent additional freezing in the refrigerating chamber at the temperature of -24°C. The invention provides the technology for quick freezing of fruit and vegetable semi-finished products having high quality indices at low energy consumption and shortened freezing duration.EFFECT: coolant to be used has the reduced viscosity, which helps to reduce energy consumption while moving it through pipelines, and good heat transfer properties.1 tbl, 3 ex
 
2550812.
Up!