![Method of producing poly[(r)carbines] (r=h, alkyl, aryl) and catalyst for production thereof](http://img.russianpatents.com/img_data/1231/12317057-s.jpg)
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Method of producing poly[(r)carbines] (r=h, alkyl, aryl) and catalyst for production thereof Invention relates to a method of producing poly[(R)carbines] (R = H, alkyl, aryl), which comprises reacting a trihalide-methyl group-containing organic compound CX3R (X = Cl, Br; R = H, alkyl, aryl) with magnesium, in an ether-type organic solvent, in a mechanical activator; excess magnesium is decomposed by ammonium salts, and the obtained poly[(R)carbine] (R = H, alkyl, aryl) is separated from the solution by replacing the solvent, followed by precipitation from the solution using a hydrocarbon of general formula CnH2n+2, where n≥6. The method is characterised by that, in order to eliminate the dependence of the output of the reaction product on the material and purity of the surface of components of the mechanical activator in contact with the reaction mixture, the reaction of the compound CX3R with magnesium is carried out in the presence of a catalyst, which includes at least one transition metal compound of the composition MXn (M=Fe, Co, Ni, Cu; X = Cl, Br, CN, CNS oxygen-free ligands; n=1, 2 or 3). The invention also relates to a catalyst. |
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Composition contains, wt p: urethane forpolymer 100, curing agent 25.2-31.8, dye 0.1-0.7. Urethane forpolymer represents product of interaction of mixture of polyethers of polyethylenebutyleneglycoladipinate with molecular weight 2000 and polydiethyleneglycoladipinate with molecular weight 800, as well as mixture of 2,4-toluene diisocyanate and 2,6-toluene diisocyanate in ratio 80:20 in molar ratio 2.2-4.0 per 1 mol of mixture of polyethers. Curing agent is obtained by dissolution of aromatic amine - 3,3'-dichloro-4,4'-diaminodiphenylmethane, in mixture of polydiethyleneglycoladipinate with molecular weight 800 and oxypropylated ethylenediamine Lapromol L-294. |
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Masterbatch and method for obtaining polyamide resin composition with masterbatch application Invention relates to masterbatch for polyamide resin composition, used for manufacturing packing material, petrol-impermeable material, fibrous material, materials for hoses, packing bottles, as well as to method for obtaining polyamide resin composition with application of said masterbatch. Masterbatch contains polyamide (X), including diamine unit, consisting by 70 mol % or more of metaxylynediamine unit, and dicarboxylic acid unit, and alkali compound (A). Average diameter of particles of alkali compound (A), contained in masterbatch, equals 50 mcm or less. Number of particles with particle diameter larger than 80 mcm per 5 square millimetres of masterbatch transverse section equals 1.5 particles or less. The sun (m) of values, obtained by multiplication of molar concentration of alkali metal atom and molar concentration of alkali earth metal atom, each contained per 1 g of masterbatch, by valences of said metals, respectively constitutes 60 mcmol/g or higher and 1710 mcmol/g or lower. |
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Electroactive polymer and material based on this polymer Invention relates to the electric engineering, and it can be widely used during manufacturing of the converters of external action of physical fields to electric signal. The invention describes electroactive polymer designed for application onto metal or semiconductor containing copolymer structure of non-uniformly distributed fragments of diarylfluorene and/or diarylanthrone interconnected via molecular chain of poly(arylene ether ketone)s or poly(arylene ether sulphone)s, as per the following formulae: |
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Invention relates to application of coating on pipeline surface. Note here that this process comprises the steps that follow. Coating composition is made containing first component including at least one polyisocyanate and second component including at least 20 wt % of aliphatic cyclic secondary diamine with secondary amine substitutes not including ether groups. Note here that said aliphatic cyclic secondary diamine contains two hexyl rings bonded by bridge, or one hexyl ring. Note that said composition contains approx 15-45 vol % of inorganic filler particles. First and second components are combined to get a fluid mix. The latter is applied on pipeline inner surface and cured to make hardened coating. Besides, invention relates to two-component coating compositions containing aliphatic cyclic secondary diamine and to process of its application on the surfaces of pipeline (for example, for drinking water). |
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Invention relates to a polyamide resin composition which contains a polyamide (X), which includes a diamine unit, including 70 mol% or more of a methaxylylene diamine unit, and a dicarboxylic acid unit, including 70 mol% or more of an adipic acid unit or a sebacic acid unit, and an alkaline compound (A), which is at least one compound selected from carbonates, bicarbonates or carboxylates of alkali or alkali-earth metals, where the following equations (1)-(3) are satisfied: 0.03≤P≤0.32 (1), 2.2≤M≤26.1 (2), 9.3<M/P≤186 (3), where P denotes the molar concentration, expressed in mcmol/g, of phosphorus per gram of the polyamide resin composition, M denotes the sum, expressed in mcmol/g, of the values obtained by multiplying the molar concentration of an alkali metal atom and the molar concentration of an alkali-earth metal atom per gram of the polyamide resin composition by the valence thereof, respectively. The invention also describes a method of producing the polyamide resin composition, a polyamide mother batch and a multilayer moulded article. |
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Fire resistive composition and textile materials containing same Fire resistive composition contains a phosphorus-containing polymer. The phosphorus-containing polymer is first produced by carrying out a reaction of a phosphonium compound and a nitrogen compound with a precondensate formed, and then by carrying out a reaction of the precondensate and a cross-linking composition. A phosphorus-containing intermediate polymer produced is further oxidised to make at least a part of phosphorus atoms in the polymer quinquivalent. A textile material contains a textile base and the phosphorus-containing polymer described above. |
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Phenol resin, production method, gluing composition for mineral fibres and obtained materials Invention relates to a liquid phenol resin for addition to a gluing composition for mineral fibres, which primarily contains phenol-formaldehyde condensates and phenol-formaldehyde-glycine condensates. The invention also relates to a method of producing said resin, a gluing composition containing the resin and to insulating materials based on mineral fibres glued with said gluing composition. |
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Invention relates to composition, suitable for obtaining polyurethane systems suitable for hot gluing. Composition additionally contains from 0.1 to 20 wt % of mixture of additives counted per the total composition. Mixture of additives includes at least one organophosphorus compound, as well as at least one compound with at least two functional groups, capable of interaction with isocyanate groups, equivalent weight of which constitutes less than 400 g/mol, where glycerol-based polyether and/or ethoxylated bisphenol A is used as said compound. Application of composition for manufacturing laminated structures as well as laminated structure itself is described. |
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Biodegradable material and method of producing biodegradable material Method relates to biodegradable material production. Biodegradable material, which is a chemical bond-crosslinked product, formed by a multivalent compound A, which includes 3 or more functional groups X, selected from a group consisting of a hydroxyl group, a thiol group and an amino group, and a multivalent compound B, which includes 3 or more functional groups Y, selected from a group consisting of a carboxyl group, an isocyanate group and a thioisocyanate group, where the chemical cross links are formed via condensation reaction of said functional group(s) X and said functional group(s) Y, where the value (y+z)/(x+z) ranges from 1.2 to 4.0, if MA≥MB, and the value (x+z)/(y+z) ranges from 1.2 to 4.0, if MA<MB, where x denotes the number of functional groups X not involved in the condensation reaction with said functional groups Y, y denotes the number of functional groups Y not involved in the condensation reaction with said functional groups X, z denotes the number of said cross links, MA denotes the weight-average molecular weight of said multivalent compound A and MB denotes the weight-average molecular weight of said multivalent compound B. The invention also discloses a vessel embolisation material, an anti-adhesive material, a wound-dressing material, a blood-staunching material and a material which prevents involuntary urination. |
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Method for obtaining cyclosiloxanes and low-molecular polydimethylsiloxane Invention relates to methods for utilisation of rubber-containing wastes of chemical production. Claimed is method for obtaining mixture of cyclosilanes and plasticiser, based on low-molecular polydimethylsiloxane, in which liquid phase, obtained as result of chemical decomposition of polysiloxane rubber-containing wastes or mixture of polysiloxane rubber-containing and polymer wastes, which represents liquid oligomer mixture, is depolymerised in hermetic reservoir in presence of alkali type catalyst (1-3 wt.p. to quantity of initial raw material) in atmosphere of inert gases under atmospheric pressure or in vacuum from 10-3 to 10-5 kPa at temperature from 50 to 175°C for 6-8 h. |
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Invention relates to a catalyst composition used to produce foam polyurethane, containing at least one catalyst which does not release hazardous substances and tetraalkyl-guanidine of the formula , where R1, R2, R3 and R4 are independently C1-C10 alkyl groups and branched or straight isomers thereof, where the at least one catalyst which does not release hazardous substances includes bis-(N,N-dimethylaminopropyl)-amine and a compound selected from a group consisting of N-(dimethylaminoethyl)-N-(2-hydroxyethyl)-N-methylamine, 2-[N-(dimethylaminoethoxyethyl)-N-methylamino]ethanol and N,N,N'-trimethyl-N'-3-aminopropyl-bis(aminoethyl)ether. The invention also relates to a catalyst composition used to produce foam polyurethane, which contains about 70 wt % or more of N,N,N'-trimethyl-N'-3-aminopropyl-bis(aminoethyl)ether and about 30 wt % or less of tetramethyl-guanidine, and to a method of producing water-foamed low-density rigid foam polyurethane, which includes contacting at least one polyisocyanate with at least one polyol with isocyanate index of 20-100, in the presence of an effective amount of a composition of foaming substances, containing at least 75 wt % water, and an effective amount of the catalyst composition according to claim 1, where the rigid foam polyurethane has density of about 6 to about 16 kg/m3. The foam polyurethane composition contains at least one polyol, at least one isocyanate, an effective amount of a composition of foaming substances and an effective amount of a catalyst composition. |
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Hydrophilic gels from polyurethane-based photoinitiators Invention relates to method for obtaining gel for coating medical devices, gel, obtained thereof and medical device, containing said gel in form of coating. Method includes a) provision of polymer photoinitiator, obtained by combined reaction of (4-(3-(bis(2-hydroxyethyl)amino)propoxy)phenyl)(phenyl)methanone, polyethyleneglycol and 4,4'-methylenebis(cyclohexylisocyanate), followed by b) solidification of matrix by exposure to UV-radiation, and c) exposure of matrix to swelling-inducing medium, with obtaining gel. Stage c) can be realised before or after stage b). |
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Polyurethane-containing sealant for insulating double-glazed window Versions of invention relate to insulating elements, in particular to insulating elements which have polyurethane-containing sealings. Described is method for obtaining insulating element, which includes formation of, at least, one isocyanate-reactionable side, and, at least, one isocyanate-reactionable side contains, at least, one hydrophobic polyol, which has average functionality from approximately 2 to approximately 6; at least, one chain extender, which has two isocyanate-reactionable groups per a molecule and equivalent weight on isocyanate-reactionable group less than 400; at least, one filling agent, where, at least, one filling agent is represented by, at least, one representative from barium sulphate (BaSO4), aluminium oxide (Al2O3), aluminium hydroxide (Al(OH)3), magnesium hydroxide (Mg(OH)2), calcium carbonate(CaCO3),, mica and talc; and interaction of, at least, one isocyanate-reactionable side with, at least, one first isocyanate in presence of, at least, one adhesion promoter, and, at least, one adhesion promoter contains, at least, product of interaction of, at least, one secondary aminoalkoxysilane and, at least, one second isocyanate, and product of interaction has on average, at least, one silane group and, at least, one isocyanate group per molecule; and application of, at least, one isocyanate-reactionable side, of , at least, one first isocyanate and, at least, one adhesion promoter between, at least, parts of first surface and second surface. Also described is insulating element, which has: first surface; construction sealing, located on, at least, parts of first surface, where construction sealing contains product of interaction of: at least, one first isocyanate; at least, one isocyanate-reactionable side described above; and, at least, one said adhesion promoter; and second surface, located on construction sealing. |
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Method for obtaining polyhydroxycarboxylic acid Invention relates to method for obtaining polylactic acid and device for said method realisation. Method includes the following stages: realisation of polymerisation with ring opening with application of catalyst and either catalyst deactivator compound or additive, blocking terminal groups, to obtain non-purified polylactic acid with molecular weight higher than 10000 g/mol. After that method includes stage for purification of non-purified polylactic acid by removal and separation of low-boiling compounds, including lactide and admixtures, from non-purified polylactic acid, by removal of volatile low-boiling compounds in form of gas-phase flow. Further, follows stage of purification of lactide from stage of removal of volatile components, and removal of admixtures from gas-phase flow of evaporated low-boiling compounds by condensation of evaporated gas-phase flow with obtaining condensed flow and further crystallisation from melt of condensed flow. Lactide is purified, and admixtures, which include catalyst residue and compound, which contains at least one hydroxyl group, are removed so that purified lactide is polymerised by its resupply into ring opening polymerisation. |
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Fuser component and method for obtaining image on carrier Invention relates to a fuser component for use in electrophotographic apparatus, including in digital printers, as well as a method of obtaining images on a carrier using a fuser component. The fuser component comprises a main (bearing) part and an external coating layer on its surface, having a cross-linked fluorinated polyimide with a curing agent, wherein the fluorinated polyimide contains: |
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Invention relates to a cyclic carbonyl compound of general formula: wherein each Y denotes -O-, n' equals 0 or 1, where, if n' equals 0, carbon atoms with numbers 4 and 6 are linked to each other by a single bond, each Q' group is an univalent radical independently selected from a group which includes hydrogen, a pentafluorophenyl carbonate group, alkyl groups containing 1 to 30 carbon atoms, aryl groups containing 6 to 30 carbon atoms, and any of said Q' groups is substituted with a pentafluorophenyl carbonate group, and where one or more Q' groups are pentafluorophenyl carbonate groups. The invention also relates to a method of forming a cyclic carbonyl compound, a method of forming a functionalised cyclic carbonyl compound, a method of forming a second cyclic carbonyl compound from the first cyclic carbonyl compound, a method of forming a polymer via ring-opening polymerisation and a biodegradable polymer. |
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Method for obtaining carbon fibre-reinforced polymers based of heat-resistant binding agent Described is method for obtaining carbon fibre-reinforced polymer based on heat-resistant binding agent, in which phthalonitrile binding agent in form of powder is placed on the surface of fibrous carbon filler, selected from carbon full-strength or monodirectional tissue, filler is soaked with thereof, and mould carbon fibre-reinforced polymer is moulded in mould from binder-soaked filler. Preform is moulded by application of filler layers one on another with their mutual fixation by solution of cyanic ether in acetone in quantity 3-10 wt % of cyanic ether to filler weight, preform is placed in mould, binding agent is placed in form of powder on the surface of preform or between layers of filler vacuum soaking of preform with molten binding agent, after that, carbon fibre-reinforced polymer is formed from preform in mould in mode of stepped heating with the following thermal processing of carbon fibre-reinforced polymer in inert atmosphere. |
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Method of obtaining polyorganosilsesquioxane-polydiorganosiloxane block copolymers Claimed is method for obtaining polyorganosilsesquioxane-polydiogranosiloxane block-copolymers by co-hydrolysis of polydiorganosiloxane with organotrichlorsilane in presence of compound of amine type, selected from pyridine and urea, in medium of organic solvent with the following condensation of formed hydrolysate in presence of alkali metal hydroxide and extraction of target product. |
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Polyurethanes produced using zinc catalysts Present invention relates to methods of producing polymers from polyisocyanates and isocyanate-reactive substances. The invention can particularly be used to produce moulded polyurethane elastomers. Described method of producing a polyisocyanate-based polymer, which includes preparing a reaction mixture containing at least one polyisocyanate, at least one polyol and at least one zinc catalyst, followed by curing the reaction mixture to form a polymer, where the zinc catalyst contains at least one zinc atom bonded to a polydentate organic ligand containing at least two complexing centres, at least one of which is nitrogen-containing, where the ligand compound is a) β-amino-alcohol or enol; b) β-imino-alcohol or enol; c) β-enamino alcohol; d) β-aminoketo-compound, or β-enaminoketo-compound, or an ester compound; e) β-diketiminate compound; f) β-diamine compound. |
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Method for obtaining carbamide melamine formaldehyde resin Invention relates to method for obtaining carbamide melamine formaldehyde resin, carbamide melamine formaldehyde resin, obtained in this way, application of such resin, composite material, containing said resin, and product, containing such composite material. Method is characterised by step-by-step condensation of carbamide and formaldehyde and further co-condensation of obtained prepolymer with melanine. Carbamide-formaldehyde concentrate can be used as formaldehyde raw material for obtaining carbamide melamine formaldehyde resin. Condensation with carbamide is realised in three steps, carrying out portioned introduction of carbamide. The process is realised in media with variable acidity and with heating. Deionised water can be used as viscosity regulator. Borax can be added into reaction mixture at the stage of co-condensation with melamine. |
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Phosphated polyester plastics and thereof containing coating compositions Invention relates to liquid coating compositions, intended, for instance, for application on all types of containers such as containers for food and drinks, on sheets, as well as to coated products. Composition contains resinous binding agent and not more than 10 wt % of phosphate polyester. Phosphated polyester (polyester) provides higher adhesion of coating to container base. Compositions can be composed as, in fact, free of bisphenol A ("BPA") and bisphenol A diglycidyl ether ("BPADE"). Coated product contains base and coating, based on said coating liquid composition. |
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Silane-containing polyurea coatings Invention relates to a polyurea coating composition and a method for application thereof on a substrate. The composition includes a) an amino-functional component which includes: (i) an aspartate-based amino-functional resin; and (ii) a blocked primary amine; and (b) an isocyanate-functional component which includes: (i) a polyisocyanate with functionality greater than 2.0 and isocyanate equivalent weight greater than 300; and (ii) isocyanate silane or methacryloxysilane. |
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Intermittent reactor and its application for polymerisation of lactons Claimed invention relates to production of multifilament finer or polymer drops composed of polylacton obtained by polymerisation of L-lactide, D-lactide, D,L-lactide, meso-lactide, glycolidea, ε-caprolactone, carnonate tri-methylene or mixes thereof. Polymerisation is carried out in intermittent reactor provided with at least one mixer and driven piston to extract reaction product via at least one spinneret. Said process comprises the steps that follow. a) Preparation of reaction mix containing L-lactide, D-lactide, D,L-lactide, meso-lactide, glycolidea, ε-caprolactone, carnonate tri-methylene or mixes thereof, catalyst and, optionally, molecular mass regulator and other additives. b) Loading of said dry or fused mix into reactor. Thereafter reactor working volume is closed tightly by the piston. c) Polymerisation is performed in reactor heated to temperature higher than monomer fusion point at mixing. Note here that mixing elements can up and lower to different height irrespective of the piston. d) Reaction product is extracted from the reactor by extruding the polylacton melt through at least one spinneret to get monofilament fibre or polymer drops. |
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Curable polyisocyanate composition including epoxy resin Described curable composition for producing a polyisocyanurate, which is obtained by combining and mixing a polyisocyanate composition including a polyisocyanate, a lithium halide and a urea compound, obtained by reacting polyisocyanates with amines, characterised by average molecular weight of about 500-15000 and, optionally, containing biuret groups, where the number of moles of lithium halide per isocyanate equivalent is in the range of 0.0001 to 0.04 and the number of urea + biuret equivalents per isocyanate equivalent is in the range of 0.0001 to 0.4, as well as an epoxy resin composition, which includes an epoxy resin, a compound having the structure NH2-CO-R, which comprises a carboxamide group having the structure -CO-NH2 and optionally a solvent which has no reactive isocyanate groups, and optionally where the number of carboxamide equivalents per epoxy equivalent is 0.0005-1 and preferably 0.005-0.7 and most preferably 0.01-0.5, and the number of epoxy equivalent per isocyanate equivalent is in the range of 0.003 to 1. Disclosed is a method of producing said curable composition by combining and mixing the polyisocyanate composition and epoxy resin composition, wherein the amount of the epoxy resin composition is such that the number of epoxy equivalents per isocyanate equivalent is 0.003-1. Described also are polyisocyanurates, which include a material produced by reacting the curable composition at high temperature, and a method of producing a polyisocyanurate, which includes said material, by reacting the curable composition at high temperature. |
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Method of producing polyester polyols Invention relates to a method of producing polyester polyols. Described method of producing polyester polyols via catalytic ring-opening polymerisation of propylene oxide with at least one bifunctional compound which is reactive with respect to alkylene oxides, wherein the catalyst used is N-heterocyclic carbene of formula wherein R1 and R2 are selected from a group which includes methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, phenyl and mesityl; and R3 and R4 are respectively selected from a group which includes H, methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, phenyl and mesityl; wherein R1 and R3, R3 and R4, as well as R4 and R2 can form rings with each other. |
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Fluorourethanes as additive in photopolymer composition Invention relates to a photopolymer composition for producing optical elements, which includes matrix polymers, writing monomers and photoinitiators, wherein the matrix polymers are polyurethanes and the writing monomers are acrylates, the composition containing as plasticisers fluoroethanes, wherein the fluoroethanes have the general formula wherein n≥1 and n≤8, R1, R2, R3 are hydrogen and/or independently straight, branched, cyclic or heterocyclic, unsubstituted or optionally heteroatom-substituted organic residues, wherein at least one of the residues R1, R2, R3 is substituted with at least one fluorine atom and the fluoroethanes have a refraction index n D 20 ≤ 1,4600. The invention also relates to use of the photopolymer composition to produce topographic elements and images, a method of exposing topographic media made from the photopolymer composition, as well as to fluorourethanes of general formula wherein m≥1 and m≤8, R4, R5, R6 is hydrogen and/or independently straight, branched, cyclic or heterocyclic unsubstituted or optionally heteroatom-substituted organic residues and iminooxadiazine dione and/or oxadiazine dione structural elements, wherein simultaneously at least two of the residues R4, R5, R6 are substituted with at least one fluorine atom. |
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Hydrophobic materials with low stickiness for ophthalmological devices Invention relates to hydrophobic acrylic materials with low stickiness and with high refractive index, suitable for application as intraocular lens materials. Claimed is copolymer material for ophthalmological device, obtained by polymerisation of mixture, which contains (wt %): a) arylacryl hydrophobic monomer (50% or more); b) acryloxy-terminated poly(ethyleneglycol)-polydimethylsiloxane-poly(ethyleneglycol) ABA block-copolymer (0,3-10%); c) siloxane monomer (5-30%); d) hydrophilic monomer (2-20%); e) cross-linking monomer and f) chemically active UF absorber. Intraocular lenses, containing said material, are also claimed. |
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Invention relates to silicone-acrylic copolymers and compositions thereof. Disclosed novel silicon-acrylic copolymer, which contains a silicone polymer covalently bonded to an acrylic polymer through a -Si-O-Si- bond with the ratio of the silicone and acrylic polymers of 50:1 to 1:50. The acrylic polymer contains at least one silane or siloxane functional group, and the silicone polymer is a polysiloxane with diorganic substitutes (dimethyl, methylvinyl, methylphenyl, diphenyl, methylethyl or 3,3,3-trifluoropropyl) and a terminal functional group selected from a hydroxyl, alkoxyl, vinyl and hydride functional group or a mixture thereof. Also disclosed is a method of producing said copolymer, as well as a composition and an article containing said copolymer. |
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Polyamide polymer compositions Composition includes a polyamide polymer (A), containing diamine structural links and dicarboxylic acid structural links, where 70 mol % or more of the diamine structural links are formed from xylylene diamine, and 50 mol % or more of the dicarboxylic acid structural links are formed from sebacic acid, and 1-40 pts.wt of at least one copolyamide (B) per 100 pts.wt of a polyamide polymer (A), where the copolyamide (B) is selected from copolyamide 6/66/12, copolyamide 6/66/11 and a polyether and polyamide copolymer containing a polyamide 12 link or a polyamide 11 link or a polyether link. Polyamide (A) is obtained via polycondensation of a diamine component containing 80 mol % or more of xylylene diamine with a dicarboxylic acid component containing 80 mol % or more of sebacid acid, and has number-average molecular weight of 6000-50000. Also described is a moulded article made from a polyamide composition, which is a film, a sheet or a tube. |
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Epoxy composition and method for thereof production Epoxy composition for infusion technology contains epoxy oligomer, selected from the group, which includes tri-tetrafunctional epoxy oligomers and eutectic mixture of, at least, two diamines, selected from the group, which includes diaminodiphenylsulphone, 3,3'-dichloro-4,4'-diaminodiphenylmethane, 4,4'-methylene-bis-(3-chloro-2,6,-diethylaniline) and 4,4'-methylene-bis-2,6,-diethylaniline, 4,4'-methylene-bis-2-isopropyl-6-methylaniline and 4,4'-methylene-bis-2,6,-diisopropylaniline. The invention also describes method of said composition obtaining. |
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Method of producing long fibre-reinforced polyurethanes containing granular filler Invention relates to a method of producing long fibre-reinforced polyurethanes which also contain granular filler. Described method of producing a fibre-reinforced polyurethane or polyurethane-urea composite, which includes placing 2.54-10.2 cm fibres soaked with a curable polyurethane- and/or polyurea-forming composition into a mould or casting form and curing the curable composition in the mould or casting form to obtain a cured polyurethane or polyurethane-urea polymer reinforced with fibres, wherein the curable composition is obtained by mixing a polyol component, which includes at least one polyol, and at least one granular filler, and a polyisocyanate component which includes a urethane group-containing MDI or polymeric MDI, and wherein (1) the granular filler makes up about 10 to 60 wt % of the curable composition and (2) the calculated molecular weight between cross-links of the cured polyurethane or polyurethane-urea is about 300 to 420. |
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Aminogroup-terminated polyformal adduct has general formula (4), (5). Aminogroup-terminated polyformal adduct has general formula F-CH2-CH(OH)-R16-S-R15-S-R16-CH(OH)-CH2-F (13), {F-CH2-CH(OH)-R16-S-R15-S-R16-CH(OH)-CH2-V'-}zB (14). Terminal aminogroups R5 and F in these compounds have general formula A-Y-(CR2 2)p-[-O-(CR1 2On-]m-O-(CR2 2)p-Y-A' (1'). Sealing composition includes product of reaction of said adduct and prepolymer with terminal isocyanate groups. Method of hole sealing consists in the fact that sealant, obtained from said composition, is applied on hole with further solidification of sealant. |
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Invention refers to a high-fluid polycarbonate copolymer, a moulded part with using this copolymer, a method for producing highly-polymerised aromatic polycarbonate resin and a polycarbonate resin composition for producing moulded sheet or film parts. The high-fluid polycarbonate copolymer is formed by a structural link produced from an aliphatic diol compound, and a structural unit produced from an aromatic dihydroxycompound, and has a structure presented by formula (III): |
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Pharmaceutical composition, containing block-copolymer, including boronic acid compound Block-copolymer includes hydrophilic segment, including polyethyleneglycol, hydrophobic segment, which includes polyamino acid chain; and boronic acid compound residue, bound with side chain of hydrophobic segment via binding unit, which includes heterocyclic structure. Heterocyclic structure is presented by the following chemical structure: , in which B stands for boron atom, formed by boronic acid compound; R1, R2, R3 and R4 each independently stands for hydrogen atom, linear or branched alkyl group with 1-16 carbon atoms, or organic group, containing aromatic group as structure for protection of bond of boronic acid ester, formed by binding of boron atom and oxygen atom, given in chemical structure. The following conditions are observed: (i) at least, one of R1, R2, R3 and R4 represents organic structure, containing aromatic group, and (ii) R1 is not hydrogen atom. Aromatic ring, obtained from aromatic group, is bound with carbon atom, forming cyclic skeleton of heterocyclic structure directly or by means of 1 or 2 atoms. |
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Synthesis is carried out in three stages: diamine polycondensation with tetracarboxylic acid dianhydride, taken in calculated molar deficiency relative to diamine, then condensation with calculated quantity of dicarboxylic acid anhydride, which contains reactionable group, and then polycondensation with tetracarboxylic acid dianhydride, taken in adding to equimolar to diamine quantity. |
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Invention can be used in construction. Claimed process comprises the steps that follow. a) Wood part is processed with acetic anhydride at 30-190°C and pressure from barometric to 15 bar exc. for up to 80 minutes. b) It is heated in inert gas to be mixed with acetic anhydride or with the mix thereof with acetic acid at 130-145°C or 150-190°C and 1-5 bar exc. for 5-300 minutes. Produced elements of acetylated wood mixed with synthetic resin as a binder make a wood composite. |
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Present invention relates to a method of producing packaging made of polyethylene terephthalate (PET). Described is a method of producing an article made of PET from biological material, which includes processing a PET polymer made from biological material into an article made of PET from biological material, selected from a preform or packaging made of PET from biological material, where the PET polymer made from biological material contains at least one PET component, selected from monoethylene glycol (MEG), terephthalic acid (TA) and combinations thereof, obtained from at least one material containing biological substances, selected from timber industry wastes, agricultural wastes and combinations thereof. |
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Co-oligophenol-formaldehyde novolacs have a general formula where R=H; C6H5, n=5-8, m=1, (p+k):m=0,01-0,2, p:k=0.8 or 1. The method of producing the novolacs includes reacting phenol, 3,3-bis(4'-hydroxyphenyl)phthalide, 3,3-bis(4'-hydroxyphenyl)phthalimidine or 2-phenyl-3,3-bis(4'-hydroxyphenyl)phthalimidine, in weight ratio of 60:20:20 to 97:1.5:1.5, with formaldehyde. The molar ratio of the mixture of said components and formaldehyde is equal to 1:0.7. The reaction is carried out at 80-85°C in an aqueous solution in the presence of acid catalysts selected from a group comprising hydrochloric acid, phosphoric acid and oxalic acid. Crosslinked copolymers are obtained when said novolacs are cured. |
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Invention relates to new coupled polymers to be used as electroluminescent material in organic LEDs. It discloses the coupled polymer based on carbazole and cyclopentadithiophen and its application as electroluminescent material in organic LEDs. |
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Resin composition for production of high-gloss laminar panels Invention relates to production of high-gloss laminar panels. Process comprises application of resin composition layer composed by paper impregnated with resin on substrate of, preferably, MDF board, HDF board or wood particle board. Application of increased pressure of 15-50 bar at increased temperature of 130-220°C for 7-60 s unless at least incomplete resin hardening without back cooling. Resin composition comprises melamine-phenolic resin (MF) in water and, additionally, one or more additives selected from the group including thiourea, 1-amine-2-thiourea, stabilized thiourea, thio-acetamidea, or additive in compliance with formula 1: where R1 and R4 are alcohol, preferably, -CH2OH, while R2 and R3 stand for polyol, preferably, -CH(OH)-CH(OH)-. Besides, invention relates to composition of resin for process implementation. |
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Method of modifying polymer porous material and composite material obtained using said method Invention relates to polymer material engineering, particularly to modification of porous materials by forming coatings. Modified porous polymer material can be used to make components for use in different scientific and engineering fields, for example wicks for raising hydrocarbon liquids through a capillary effect, filter elements, carrier matrix for active low-molecular components as part of structures bearing a power load, for example, wings of a light aeroplane. The disclosed method includes forming, on the surface of structural elements of a matrix of the initial porous material, a continuous coating from a polymer with physical and mechanical properties different from that of the polymer of the matrix of the initial porous material. The coating is formed as a result of synthesis of a heat-resistant polymer - poly-para-xylylene via gas-phase polymerisation on the surface. Synthesis of a film of poly-para-xylylene is carried out at temperature of the walls of the polymerisation chamber of 20-25°C and pressure of the gaseous monomer (para-xylylene) of about 5-8 Pa, wherein directed movement of monomer molecules through the matrix of the initial porous material is facilitated in the chamber. Also declared is a composite porous material containing a matrix with through porosity and a continuous coating of poly-para-xylylene with thickness of 0.2-0.3 mm on the surface of structural matrix elements. The technical result is increasing heat resistance of the modified porous plastic 2-3-fold to 250-300°C (Vicat softening point); uniaxial compression strength of the modified material is significantly greater than that of the initial material ( 2 times greater); resistance of the modified porous plastic to solvents increases since the modifying coating dissolves at high temperature only in very strong solvents. |
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Soluble alternating donor-acceptor conjugated polymer electrochromes Invention is related to donor-acceptor (DA) polymers with alternating donor D and acceptor A units, which can be used as an electrochromic polymer. Polymers [D-A]n, where n = 2 to 200000, comprising a plurality of D units and a plurality of A units, alternating with the D units. The D units are comprising 3,4-alkylenedioxythiophenes, substituted on the alkylene bridge, 3,4-dialkoxythiophenes, 3,6-dialkoxythieno[3,2-b]thiophenes, or 3,5- dialkoxy-dithieno[3,2-b:2′,3′-d]thiophenes. A method for preparation of the said polymers is based on cross-condensation of a nucleophilic acceptor monomer and an electrophilic donor monomer. The said DA polymers are soluble and display a blue or green colour in a neutral state and are transmissive in an oxidised state. |
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Method of obtaining moisture-curing polyurethane binding agent with terminal alkoxysilane groups Method includes reaction of bifunctional polymer of formula (I) X-R-X, where R stands for ether chain residue, X stands for hydroxygroup, with respective diisocyanate of formula (II) X-R6-X, where X stands for isocyanate group, R6 stands for hydrocarbon group, which contains to 16 carbon atoms, and organoalkoxysilane of formula (III) Y-R1-Si(R2)m(OR3)3-m, where Y stands for primary or secondary aminogroup, in presence of vinylalkoxysilane of formula (IV) CH2=CH-Si(R4)n(OR5)3-n, and in compounds (III) and (IV) each of R1, R2, R3, R4, R5 has the same or different values and stands for hydrocarbon group, which contains 1-12 carbon atoms, m, n=0, 1 or 2. |
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Method for obtaining silane-modified polyurethane binding agent Invention relates to method of obtaining silane-modified polyurethane binding agent (SPU-polymer), which contains terminal reactionable alkoxysilane groups, which can be applied as polymeric base in compositions of adhesives, sealants and coatings for different purpose, which are moisture-curable. Method consists in interaction of bifunctional polymer of formula (I) X-R-X, where R stands for residue of polyether chain, X stands for hydroxyl group, with organoalkoxysilane of formula (II) Y-R1-Si(R2)m(OR3)3-m, where Y stands for isocyanate group in presence of vinylalkoxysilane of formula (III) CH2=CH-Si(R4)n(OR5)3-n. In compounds (II) and (III) each of R1, R2, R3, R4, R5 has the same or different values and stands for hydrocarbon group, which contains from 1-12 carbon atoms, m, n = 0, 1 or 2. |
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Method for producing cyclosiloxane polyols Invention refers to a method for producing stereoregular phenyl- and methylsiloxane macrocycles containing a hydroxyl group at every silicon atom. What is presented is a method for producing stereoregular cyclosiloxane polyols of general formula [RSi(O)OH]n, wherein R = Ph or Me, n = 4, 6, 12, by decomposing framework metallosiloxanes specified among [RSi(O)OM]4Lx,{(RSiO2)6Ni4M4(NaOH)2}Lx, {M4[RSi(O)O]12Cu4}Lx, wherein R = Me or Ph, M = Na or K, L = n-BuOH, EtOH or H2O, x = 8-12 in an aqueous medium saturated with carbon dioxide at pressure from 150 to 350 atm and at temperature 20-60°C; after carbon dioxide is separated, the end product is recovered with using known procedures, then washed in acetic acid and water successfully. |
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Polyphenylene ether ketone formal oximate and method for production thereof Described is a polyphenylene ether ketone formal oximate of formula (1) having reduced viscosity ηred=0.45-0.55 dl/g, molecular weight MW≈45000-55000. Also described is a method of producing said polyphenylene ether ketone formal oximate, which includes carrying out a reaction in an aprotic dipolar solvent of dimethyl sulphoxide in two steps; the first step includes reacting a dianion of an aromatic dihydroxyl-containing compound with dichlorobenzophenone in molar ratio of 2:1; the second step includes obtaining a polymer by adding a dihalogen-derivative, wherein the dihydroxyl-containing compound used at the first step is 4.4'-diacetyldiphenyloxide diketoxime, the dihalogen-derivative used at the second step is methylene chloride; the ratio of components at the first step (mol) 4.4'-diacetyldiphenyloxide diketoxime:dichlorobenzophenone:KOH:K2CO3 = 1:0.5:2:0.15; concentration of 4.4'-diacetyldiphenyloxide diketoxime in dimethyl sulphoxide is equal to 1 mol/l, temperature is 165°C, the duration of the first step is equal to 1 hour; the ratio of components at the second step (mol) with respect to the initial diketoxime - 4.4'-diacetyldiphenyloxide diketoxime:methylene chloride:tetrabutylammonium bromide=1:5:0.1, temperature is 80°C, the duration of the second step is equal to 10 hours. [-O-N=C(CH3)-Ph-O-Ph-C(CH3)=N-O-Ph-CO-Ph-O-N=C(CH3)-Ph-O-Oh-C(CH3)=N-O-CH2-]n (1). |
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Invention relates to an apparatus for separating an aromatic polycarbonate from a solution obtained via interphase synthesis, which comprises an extruder with a vent for released gases with at least three degassing zones and a carrier agent dispersion zone, wherein the apparatus further includes a descending tubular evaporator and a foam evaporator and said extruder and evaporators are arranged in the series: descending tubular evaporator - foam evaporator - extruder with a vent for released gases, and the carrier agent dispersion zone is located before each degassing zone. Also described is a method of separating an aromatic polycarbonate from a solution obtained via interphase synthesis. |
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Polyimide membranes from polymerisation solutions Invention relates to polyimide membranes which can be either flat membranes or membranes made of hollow fibres. The polyimide membranes can be porous membranes in the form of micro-, ultra- or nanofiltration membranes or nonporous membranes used to separate gases. A method of producing polyimide membranes includes steps of producing a polyimide via polycondensation of an aromatic dianhydride of tetracarboxylic acid with an aromatic diisocyanate in an aprotic dipolar solvent, preparing a polyimide-containing moulding solution and producing a polyimide membrane from the moulding solution, wherein the polyimide is not separated between the first two steps in the form of a solid substance and is not dissolved again, and wherein the membrane is made using a phase inversion technique. |
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Silicone (meth)acrylamide monomer, polymer, ophthalmic lens and contact lens Invention relates to a silicone (meth)acrylamide monomer, the molecules of which contain a straight chain siloxanyl group and preferably a hydroxyl group. Disclosed is a silicone (meth)acrylamide monomer of general formula (a), where R is hydrogen or methyl; R1 is hydrogen or an alkyl containing 1-20 carbon atoms, which can be substituted with a hydroxyl; R2 is a C1-10-alkylene group, which can be substituted with a hydroxyl; R3-R9 independently denote C1-20-alkyl, which can be substituted with a hydroxyl, n is an integer from 1 to 10. A polymer obtained from said monomer is also disclosed, as well as an ophthalmic lens and a contact lens made therefrom. |
Another patent 2550829.