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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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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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Production of elastic composite elastomer polyurethane leather In compliance with this invention, polyurethane reaction mix is sprayed on mould surface and cured thereon to get the leather ply. Said process comprises the steps that follow. Reaction mix is prepared from components including at least one isocyanate component, components that can react with isocyanate and metalorganic catalytic component. Note here that said isocyanate component comprises at least one isocyanate with two NCO-groups not connected directly to aromatic group while said catalytic component does not, in fact, contain lead. Note here that components that can react with isocyanate include component with active hydrogen atom consisting of at least one compound with functional groups composed of primary and/or secondary PH-groups, NH-groups and/or NH2-groups. Aforesaid ply features rated functionality of 2 to 8 and equivalent weight of 100-4000, preferably, 500-2000. Polyurethane reaction mix is sprayed on mould surface and cured thereon to get the leather ply. Produced polyurethane ply is removed from mould surface. Note here that components that can react with isocyanate include at least one plasticizing agent including at least one group that can react with isocyanate to decrease coefficient of elasticity at flexure of leather. Note also that said plasticiser includes at least one group that can react with isocyanate group. |
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Method of producing polyether alcohols Invention relates to a method of producing polyether alcohol. The method is carried out by reacting (a) at least one compound with at least three hydrogen atoms that are reactive with respect to alkylene dioxides with weight-average molecular weight Mn of at most 600 g/mol with (b) alkylene oxides using (c) catalysts. The reaction is carried out in the presence of polyether alcohol (d) with hydroxyl number of 100-800 mg KOH/g and functionality of 1.5-8. The polyether alcohol (d) is used in amount of 1-70 wt % with respect to the sum of compounds (a) and (d), alkylene oxide is fed at an average rate of 45-160 kg/h/cm3 with respect to the reactor volume. Power consumption of the mixer is in the range of 0.15-5 kW/m3. |
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Components with applied coating and thereof application Claimed invention relates to components, covered with polyurethanes and their application, preferably, in sea-related field. Described are components with directly or indirectly applied coating of polyurethanes, with polyurethanes being obtained in presence of, at least, one metal catalyst from the group, consisting of catalysts based on mercury, cobalt, hafnium, aluminium, cadmium, lead, iron, tin, zinc, bismuth, zirconium and titanium and their mixtures, from: a) at least, one polyisocyanate, based on diphenylmethanediisocyanate (MDI) with content of NCO-groups from 18 wt % to 34 wt %, part of utmost 20 wt %, counted per applied polyisocyanate a), 2,4'-MDI-isomer and part of at least 5 wt %, counted per applied polyisocyanate a), modified by means of carbodiimide groups and uretonimine-groups of diphenylmethanediisocyanate, which is liquid at temperature higher than 30°C, b) at least, one based on ethylene oxide and/or propylene oxide of polyetherpolyol with functionality 5-8, preferably, 6-7, OH-number from 5 mg to 45 mg KOH/g substance and content of ethylene oxide units from 0 wt % to 50 wt %, c) at least one chain extender with molecular weight from 62 g/mol to 500 g/mol and functionality from 2 to 3, d) 2-15 wt % counted per b)-e) components, of, at least, one epoxy resin with number average molecular weight, lower or equal 10000 g/mol, e) 0-50 wt %, counted per components b)-e), of polyols from the group, consisting of based on ethylene oxide and/or propylene oxide polyethers with OH-number from 50 mg to 400 mg KOH/g of substance with functionality from 5 to 7 and content of ethylene oxide units 0-50 wt %, based on ethylene oxide and/or propylene oxide polyethers with Oh-number from 20 mg to 200 mg KOH/g of substance, with functionality from ≥2 to <5 and content of ethylene oxide units from 0 wt % to 50 wt %, polyols with functionality 2 based on polytetramethyleneglycols with molecular weight from 600 g/mol to 3000 g/mol, with terminal OH-groups of polybutadienes, polycarbonatediols and their mixtures, f) optionally UV-stabilisers and oxidation stabilisers, g) optionally auxiliary substances and/or additives and h) optionally adhesion-promoting means, with ratio of NCO-groups to groups of components b), c) and e), reacting with NCO-groups, constituting from 0.70 to 1.30, preferably, from 0.85:1 to 1.2:1, especially preferably, from 0.95 to 1.1:1. |
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Fast-reacting composition for preparation of low-density solid polyurethane foam Invention relates to fast-reacting composition, applied for obtaining low-density solid polyurethane foam. Described is fast-reacting composition, applied for obtaining low-density solid polyurethane foam, obtained by mixing the following components in proper proportion by weight: highly-active complex material:foamer:isocyanate - 100:(8~28):(105~155);with highly-active complex material being obtained by mixing the following components in proper proportion by weight: mixed polyol:foam stabiliser:water:additional ingredient - 100:(0.5~3.5):(1.0~10):(0.5~3.0):(0~5); with foamer being related to mixture of cyclopentane and HFC-365 mfc, or mixture of cyclopentane and HFC-245 fa, or mixture of cyclopentane, HFC-365 mfc and HFC-245 fa; and mixed polyol consisting of polyesterpolyol with hydroxyl number 100-450 mg KOH/g, Mannih's polyol with hydroxyl number 160-750 KOH/g and polyetherpolyol, where polyesterpolyol constitutes 1.0-30 wt % of the total weight of mixed polyol, and Mannih's polyol constitutes 0-50 wt % of the total weight of mixed polyol, and residue represents polyetherpolyol. |
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Composition for obtaining of fireproof polyurethane foam Invention relates to obtaining fireproof polyurethane foam from foamed reaction mixture, which consists of mixture of polyols, polyisocyanate and fireproof additives (fire-retardants). Composition for obtaining fireproof polyurethane foam is described, which contains mixture of polyols, polyisocyanate and fireproof additives, with mixture of ammonium polyphosphate and ammonium sulphamate being applied as additives in quantity from 10 to 40 wt % of the total amount of components, and ratio of ammonium polyphosphate to ammonium sulphamate in mixture constitutes respectively from 1:2 to 7:1 weight parts. |
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Described is method of obtaining highly concentrated water nano-size polyurethane dispersion, which does not contain organic solvent, with concentration of basic substance 30-60%, which represents product of interaction of: A) at least, one polyisocyanate, which contains, at least, two isocyanate groups; B) one or several polyols with molecular weight (MW) from 1000 to 18000, which have, at least, two hydroxyl groups; C) one or several compounds, at least, with two OH-functional groups, which contain, at least, one carboxyl group, which can be transformed fully or partially into carboxyl group in presence of bases; D) possibly one or several polyols and/or glycidyl ethers of polyols with average molecular weight less than 500, which contain 2 or more hydroxyl and/or epoxy groups; E) one or several tertiary amines; F) one or several polyamines, which contain at least one NH2-group. Components (A), (B) and (C) are subjected to simultaneous interaction to degree of conversion of isocyanate groups 70-98%, if necessary component (D) is introduced into reaction mass, with the following complete or partial neutralisation of carboxyl groups of component (C) with component (E), dispersion in water, introduction of component (F); dispersion is heated and exposed at temperature from 20 to 90°C for from one to four hours. Also described are highly concentrated water nano-size polyurethane dispersion, obtained by claimed method, and its application for obtaining coatings for different substrates, especially flexible substrates, hermetics and glues. |
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Method for producing rigid polyurethane foam Invention relates to a method for producing a rigid polyurethane foam, which comprises mixing a) a polyisocyanate component with b) compounds having at least two hydrogen atoms which are reactive toward isocyanate groups in the presence of c) blowing agents, wherein component b) contains castor oil bi) and at least one hydroxyl-terminated polyether, and the reaction is conducted in the presence of a compound selected from a group comprising alkyl carbonate, carbonic acid amide and pyrrolidone, whereas no halogenated antipyrens are used. Also described is a rigid polyurethane foam produced using the said method. |
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Invention relates to a method of obtaining a liquid isocyanate composition, which is liquid at 50°C, for obtaining a polyurethane or polyurea material. The method includes the supply of, at least, one isocyanate component, clay nanoparticles and, at least, one polyol, which has terminal EO units. After that, in accordance with the claimed method the said isocyanate component and the said clay nanoparticles are combined. The said combination of the isocyanate component and clay nanoparticles is mixed for the time period in the range from 1 min to 10 h under high shear, involving shear rates higher than 1000 s-1, with the simultaneous support of the said combination temperature in the range from 25°C to 80°C. Then the said polyol, possessing the terminal EO units, is added to the said combination of the isocyanate component and clay nanoparticles, in such an amount that the ratio NCO/OH is in the range from 1500 to 1.5. The obtained combination of the isocyanate component, clay nanoparticles and polyol, possessing the terminal EO units, is mixed for the time period in the range from 1 min to 10 h under high shear, involving shear rates higher than 1000 s-1, with the simultaneous support of the said combination temperature in the range from 60°C to 100°C with obtaining the liquid isocyanate composition. The claimed method makes it possible to obtain a more stable dispersion of clay nanoparticles in isocyanate. |
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Method of producing ether urethane acrylate oligomer Method of producing an ether urethane acrylate oligomer is carried out by reacting monomethacrylate ether of ethylene glycol with an isocyanate-containing prepolymer SKU-PFL-100, the method being characterised by that the prepolymer SKU-PFL-100 after loading is mixed and heated at 25-30°C for 10-20 minutes, wherein dibutyltin dilaurate is added to the prepolymer in the form of a solution in monomethacrylate ether of ethylene glycol gradually in portions of 1/4-1/5 of the total weighed portion with an interval of 15 minutes between portions; after loading the last portion, the mixture is stirred at 25-30°C for 15 minutes, temperature is then raised to 35-60°C, followed by stirring for 5.0 hours until isocyanate groups are exhausted in the finished oligomer. The oligomer obtained using the method is a transparent mass with a light-yellow to light-brown colour and viscosity of 200-300 Pa·s. |
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Polyisocyanate-based anti-corrosion coating Present invention relates to polyisocyanurate reactive compositions which are well suited for anticorrosion, wear-resistant coatings. Described is a polyisocyanate-based non-syntactic coating composition obtained by reacting an organic polyisocyanate with a compound containing isocyanate-reactive hydrogen atoms with an isocyanate index of more than 1000% in the presence of a trimerisation catalyst and in the absence of polymeric polyols. The invention also describes a reaction mixture for producing a polyisocyanate-based non-syntactic coating composition, use of the polyisocyanate-based coating composition, a method of inhibiting corrosion of metal surfaces and article comprising a substrate and a film coating on the substrate, where said film coating contains the coating composition. |
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Invention relates to foam polyisocyanurate composition, which can be applied in production of heat-insulating materials and building panels. Foam polycyanurate composition includes polyisocyanate compound, first polyetherpolyol based on ester, including residue of orthophthalic acid, second polyetherpolyol based on ester, including residue of terephthalic acid, at least one polyetherpolyol based on ether, which is characterised by functionality, constituting at least 3, and hydroxyl number, which changes in the range from 200 to 850 mg KOH/g. Composition also includes physical foaming agent and water in quantity from 0.2 to 3 wt % counted per the total quantity of components in reaction mixture, where isocyanate index constitutes from 250 to 500. Also described is product, which contains claimed composition, and method of panel obtaining, which has facing and block from foam polyisocyanurate. |
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Etherurethaneacrylate oligomer Etherurethaneacrylate oligomer is applied for the preparation of filling compositions for various purposes. Etherurethaneacrylate oligomer is obtained with the application of 100 wt. p. of an isocyanate-containing prepolymer "СКУ-ПФЛ"-100, 16-21 wt. p. of a monomethacryl ether of ethylene glycol and 0.001-0.01 wt. p. of tin dibutyldilaurate. Synthesis is carried out to the complete expenditure of isocyanate groups. The oligomer represents a transparent liquid of the light yellow colour with the viscosity of 200-300 Pa·s. |
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Hydroxyaldimine-containing polyurethane composition Claimed invention relates to field of polyurethane compositions, as well as to their application, in particular, as two-component binding material, sealant, sealing mass, coating or floor coating. Described is composition, used as glue, sealant, sealing mass, coating or floor coating, paint, varnish or priming coat, containing: a) at least one aldimine A of formula and b) at least one polyisocyanate P. Described is two-component composition, used as glue, sealant, sealing mass or coating, consisting of: component K1, which contains: a) at least one aldimine A of formula (I) and b) at least one substance RS, which contains at least two groups, reactionable with respect to isocyanate groups, and/or water, and component K2, which contains c) at least one polyisocyanate P. Described is product of AV binding, obtained in the course of reaction of aldimine A of formula (I) with polyisocyanate P, contained in said compositions, and aldimine of formula . Also described are: method of gluing substrate S1 with substrate S2, which includes the following stages: i) application of described composition on substrate S1; ii) contact of applied composition with substrate S2, continuing for the time of composition viability; or i′) application of composition on substrate S1 and on substrate S2; ii′) contact of substrates with applied composition with each other for the time of composition viability; with substrate S2 consisting of material the same or different from substrate 1; application of said composition as glue, sealant, sealing mass, coating, floor coating, paint, varnish or priming coat and hardened composition, used as glue, sealant, sealing mass, coating, floor coating, paint, varnish or priming coat, obtained from said composition and moisture. |
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Method of obtaining polymer foam composition (versions) Invention relates to foamed polymers. A freshly prepared foam-polyurethane composition is mixed with a freshly prepared polyether or epoxy composition in the concentration of 0.1-99.9% or a monomer of a foam-polyurethane composition is mixed with a monomer of the polyether or epoxy composition in the concentration of 0.1-99.9%, and solidifying agents of the said compositions are mixed in exactly the same concentration, after which mixing of both monomers with both the solidifying agents is carried out. |
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Compound casting method for electrical goods Compound casting method for electrical goods includes mixing of components with receipt of the compound and casting of the electrical goods with the compound. At that before casting an electrical good is heated at temperature of 50-55°C and residual pressure of 10-15 mm hg at least during 3 hours. The compound is received by mixing of predried components in the following ratio, g: styrene - 50, castor oil - 38, product 102T - 12, benzoyl peroxide paste - 1. The paste made by mixing of predried benzoyl peroxide with dibutyl phthalate is used as the benzoyl peroxide paste. At that before casting the compound is vacuumised additionally at temperature of 15-35°C and residual pressure of 10-15 mm hg at least during 3-5 minutes. The pretreated electrical goods and compound are heated in the same furnace at temperature of 70°C during 1 hour. Then the heated electrical goods are casted step by step with the hot compound by the free casting method initially to ѕ of the electrical good height or volume with further vacuum degassing of the casted electrical goods at temperature of 15-35°C and residual pressure of 10-15 mm hg during 15-20 minutes with further casting of the electrical good with the same compound up to the required level. The multistage polymerisation of the compound is carried out. At that the casted electrical goods are held in the furnace heated up to 70°C during 4 hours at first, then they are casted with the same compound and its polymerisation takes place again at temperature of 70°C during 4 hours. |
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Method of producing polyurethane foam Invention relates to a method of producing polyurethane foam, polyurethane foam obtained using said method and a moulded article containing polyurethane foam. In the method of producing polyurethane foam, polyol polyether and polyisocyanate react in the presence of a foaming agent, metals contained in a metal cyanide complex-based composite catalyst in amount of 1-30 ppmw per million parts of the polyol polyether and a compound which is a phophoric acid, which consists of a phosphoric acid selected from orthophosphoric acid, polyphosphoric acid and polymetaphosphoric acid and/or a partial ester similar to phosphoric acid, in amount of 0.5-100 ppmw per million parts of the polyol polyether. |
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Polyurethane coating composition Polyurethane coating composition contains polyoxypropylene triol with molecular weight of 3000-5000, polyisocyanate based on 4,4'-diphenylmethane diisocyanate, dibutyltin dilaurate, diol and a solvent. The diol used is 2,2-bis-[4-(2-oxyethoxy)-phenyl]-propane. |
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Reaction system and method of obtaining lignocellulose product Claimed invention relates to a method of obtaining a lignocellulose composite product. Described is the method of obtaining the lignocellulose composite product, which includes the application of a masking-preventing additive on a lignocellulose composite substrate, obtained as a result of its processing with a polyfunctional isocyanate composition, which has free isocyanate groups, and/or on the moulding surface, with the masking-preventing additive containing more than approximately 50 wt % of the total weight of the masking-preventing additive of fatty amine alkoxylate, which has free hydroxyl groups; and the application of pressure to the lignocellulose composite substrate with the application of the moulding surface. Also described is the masking-preventing composition, characterised above, for the application on the moulding surface of an apparatus for obtaining lignocellulose composite products, where the masking-preventing composition contains a liquid carrier, selected from the group, consisting of water, a liquid hydroxyl-containing compound, which contains from 1 to 4 carbon atoms, and their mixtures; and the masking-preventing additive, dispersed in the liquid carrier, with the masking-preventing additive containing fatty amine alkoxylate, which has free hydroxyl groups. |
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Soil reinforcement composition Invention relates to compositions sued as binder for soil, and can be used in construction and mining. A two-component composition for reinforcing soil by injection contains as an isocyanate component polyphenylene polymethylene polyisocyanate containing 30-31% NCO groups, and as a hydroxyl component a homogenous mixture of alkoxylated alkanetriol with molecular weight of 370-500, ethylene glycol, a urethane-forming catalyst selected from a group comprising dimethylethanolamine and methyldiethanolamine, potassium acetate and a diluent selected from a group comprising chlorinated paraffin wax CP-470 and a mixture thereof with dibutyl phthalate, with content of the isocyanate and hydroxyl components in equal volumes. |
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Polyurethane composition and use thereof to produce holographic media Invention relates to a polyurethane composition for producing holographic media, which includes: (A) a polyisocyanate component containing at least one polyurethane prepolymer with a terminal isocyanate group with isocyanate group functionality of 1.9-5.0, for which the isocyanate group is attached to a primary aliphatic residue and which is based on compounds with hydroxyl functional groups with hydroxyl group functionality of 1.6-2.05, (B) polyether polyols which react with isocyanates, (C) urethane acrylates and/or urethane methacrylates with at least one aromatic structural unit and with a refraction index greater than 1.50 at 405 nm, which are free of isocyanate groups and hydroxyl groups, (D) radical stabilisers, (E) photoinitators based on combinations of borate salts and one or more dyes with absorption bands which at least partially overlap the spectral region from 400 to 800 nm, (F) optionally catalyst and (G) optionally auxiliary substances and additives. The invention also describes a method of producing media for recording visual holograms, media for recording visual holograms, use of such a medium and a method of recording holograms. |
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Present invention relates to a two-component coating system at least comprising: (A) a polyisocyanate component consisting of (a) a polyisocyanate component based on an aromatic prepolymer having allophanate groups and (b) a polyisocyanate component based on (cyclo)aliphatic polyisocyanate, (B) amino functional cross-linking agents based on aromatic diamines, wherein up to 49 wt % of said amino functional cross-linking agents can be replaced with amino functional polymers based on aspartates. Also described is a coated substrate obtained using said system. |
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Foam polyurethanes, including lipid-based polyols Claimed invention relates to method of obtaining foam-polyurethane foam from lipid-based polyols. Described is method of obtaining polyurethane foam, which contains lipid-based polyol, including: (a) obtaining prepolymer by method, which includes the following stages: providing presence of lipid-based polyol, first quantity of multifunctional isocyanate and first quantity of, at least, one jellification catalyst; and combination of lipid-based polyol, isocyanate and first quantity of jellification catalyst with formation of polyol/isocyanate mixture; interaction of polyol/isocyanate mixture mainly without application of additional heating; with obtaining prepolymer, with prepolimer being mainly not in form of foam and having functional groups OH, which have not reacted, and having lower quantity of free monomer that has not reacted and dimeric polyols in comparison with polyol/isocyanate mixture; (b) obtaining polyurethane foam by method, which includes the following stages: combination of prepolymer from stage (a) with second quantity of multifunctional isocyanate and with foaming agent, and interaction of prepolymer, isocyanate and foaming agent with obtaining polyurethane foam; where firat quantity of multifunctional isocyanate constitutes from 0.01% to 33% of stoichimetric quantity of multifunctional isocyanate(s), which is required for interaction with present hydroxyl groups of polyol(s) in polyol/isocyanate mixture; where first quantity of isocyanate includes at least one of 4,4′-methylenebis(phenylisocyanate) (MDI) and tolueneisocyanate (TDI); and where lipid-based polyol includes sufficient quantity of lipid-based polyol so that the total quantity of lipid-based polyol in polyurethane foam constitutes not less than 10% with respect to the total quantity of polyol by weight in foam. |
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Method of obtaining hard foam polyurethanes Invention relates to method of obtaining hard foam polyurethanes. Method of obtaining hard foam polyurethanes is realised by interaction of: a) organic polyisocyanates b) with compounds, which contain at least two reactionable with respect to isocyantate groups hydrogen atoms, in presence of c) pore-formers, d) catalysts, as well as if necessary e) additional substances and additives, and as component b) applied is mixture, which contains: b1) from 20 to 70 wt.p. of one or several highly functional ethers of polyatomic alcohols with functionality from 3.7 to 5.2 and hydroxyl number from 370 to 500 mg KOH/g, b2) from 5 to 30 wt.p. of one or several ethers of polyatomic alcohols based on aromatic amines with functionality from 3 to 4 and hydroxyl number from 150 to 500 mg KOH/g, b3) from 5 to 20 wt.p. of one or several low molecular agents of chain elongation and/or linking agents with functionality from 2 to 3 and weight average molecular weight Mw less than 400 g/mole, average hydroxyl number of which constitutes from 400 to 500 mg KOH/g. |
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Irradiation-solidified polymeric composition for cable covering Invention relates to irradiation-solidified polymeric composition for application on electric cables, more specifically on main cables, telephone cables, cables for connection between electronic equipment or inside electronic equipment, etc. Composition includes 30-80 wt % of ingredient (A), 15-60 wt % of ingredient (B) and 0.01-1 wt % of ingredient (D), counted per weight of composition, where (A) is urethane (meth)acrylate, which has two or more structure parts, derivatives from aliphatic polyol, which has molecular weight from 500 to 1000 g/mole, (B) compound, which has cyclic structure and one ethylene-unsaturated group, and (D) organophosphorus compound. |
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Polyurethane foam with low content of monomers Invention relates to single-component polyurethane foam with low content of monomers, suitable to encapsulation, isolation and/or mounting of junctions, surfaces of roof, windows and doors or for filling cavities. Composition contains a) from 10 to 90 wt % of prepolymers from polyesterdiols, obtained by reaction with excess of diisocyanate with the following removal of excess monomer diisocyanate, b) from 90 to 10 wt % of component based on polyether polyols, which have either, at least, one Si(OR)3-group, where -OR radical is selected from methoxy-, ethoxy-, propoxy, butoxy-radicals, or, at least, one NCO-group, c) from 0.1 to 30 wt % of additives, d) at least, one foaming agent. Both polyesterdiols and polyetherdiols have molecular weight (MN) less than 5000 g/mol, and mixture from a and b has content of monomer diisocyanate less than 2 wt %. Invention also relates to method of claimed composition obtaining and application of composition for obtaining linkable foams in container. |
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Radiation-curable polymer composition for wire coating Invention relates to a radiation-curable polymer composition for wire coating. The composition contains (A) 30-80 wt % mixture of urethane (meth)acrylate, having a structure derived from an aliphatic polyol, and a urethane (meth)acrylate, without a structure derived from a polyol, (B) 15-60 wt % compound having a cyclic structure and one ethylenically unsaturated group selected from isobornyl methacrylate, bornyl methacrylate, tricyclodecanyl methacrylate, dicyclopentanyl methacrylate, benzyl methacrylate, 4-butylcyclohexyl methacrylate, acryloylmorpholine, vinylimidazole, vinylpyridine, and (D) 0.01-1 wt % compound (4a), which is a phosphoric ester. |
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Polyurethane composition and its application for obtaining holographic media Claimed invention relates to polyurethane composition for obtaining holographic media. Claimed composition includes: A) polyisocyanate component; B) isocyanate-reactionable component, which includes, at least, 50 wt % calculated per the total mixtute of B) polyetherpolyols B1) with number average molecular weights higher than 1000 g/mol, which have refraction index nD 20<1.55 and contain one or several oxyalkyl links of formulae (I)-(III): -CH2-CH2-O- (I), -CH2-CH(R)-O- (II), -CH2-CH2-CH2O- (III), with R being alkyl or aryl residue, which can be substituted or broken with heteroatoms; C) compounds, which have refraction index nD 20>1.55 and contain groups, under action of actinic radiation reacting with ethylene-unsaturated compounds with polymerisation (radiation-solidified groups), and do not contain NCO-groups themselves; D) radical stabilisers; E) photoinitiators; F) catalysts if necessary; G) auxiliary substances and additives if necessary. Also described are: method of obtaining media for recording visual holograms, medium for recording visual holograms, application of such medium and method of hologram recording. |
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Composition for producing rigid sputtered polyurethane foam Composition contains a hydroxyl-containing compound - oxypropylethylenediamine and an ether based on propylene oxide, a catalyst - dimethylethanolamine, a foaming agent - water, a foam regulator, polyisocyanate and a fire retardant, wherein the foam regulator is a surfactant based on non-hydrolysable silica gel copolymer; the composition further contains an ether based on ethylene oxide with ethylene glycol, a fire retardant in form of trichloropropyl phosphate and a mixture of catalysts - triethylenediamine/dipropylene glycol, pentamethyldiethylenetriamine, with the following ratio of components, wt%: oxypropylethylenediamine 7-12; ether based on propylene oxide 7-9; ether based on ethylene oxide with ethylene glycol 7-9; dimethylethanolamine 1-1,2; triethylenediamine/dipropylene glycol 1.3-1.5; pentamethyldiethylenetriamine 2.8-3; trichloropropyl phosphate 10-12; water 5.2-5.4; non-hydrolysable silica gel copolymer 1.1-1.2; polyisocyanate 50.1-53.1. |
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Present invention relates to a method of producing polyether-ester polyols, wherein starting compounds with Zerewitinow-active hydrogen atoms (a) react with at least one alkylene oxide (b) in the presence of at least one amine (c), selected from a group consisting of a tertiary amine, unsubstituted imidazole and substituted imidazole, in the presence of at least one fatty acid ester (d) and where 99 wt % of the starting compounds with Zerewitinow-active hydrogen atoms (a) are embedded in the obtained polyether-ester polyol, wherein component (d) is added before, during or after dosing component (b), and before dosing component (b) the polyether-ester polyol (e) in amount of 3.0-20.0 wt % with respect to all components (a), (b), (c), (d) and (e) is mixed with components (a), c and optionally (d). The invention also describes a polyether-ester polyol obtained using said method, use thereof to make foamed polyurethane material and the foamed polyurethane material. |
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Water-dispersible polyurethane, its application and cosmetic preparation Invention relates to water-dispersible polyurethane, method of obtaining thereof, thereof application and cosmetic preparation, containing polyurethane as thickening agent. Water-dispersible polyurethane contains mainly linear basic chains, consisting of alternating hydrophilic and hydrophobic sections. Polyurethane has two terminal sections (T), which are hydrophobic, and, at least, one hydrophobic terminal section (T) represents branched alkyl residue. Hydrophilic section (S) is directly attached to each section (T). At least, one hydrophobic section (D) is directly attached to, at least, one end of each of sections (S). The main polyurethane chain contains, at least, one hydrophilic section (P), and if there is more than one section (P), two sections (P) are separated with, at least, one hydrophobic section (D). Polyurethane contains, at least, three hydrophilic sections. Ratio of molecular weight of any of hydrophilic sections (S) to molecular weight of any of hydrophilic sections (P) lies within the interval from 1:1.4 to 1:70. At least, two hydrophobic sections (D) are aliphatic diisocyanate residues, and, at least, one hydrophilic section (P) represents residue of polyether with number average molecular weight, at least, 1500 g/mol. Polyurethane can represent mixture of different mentioned above polyurethanes. Polyurethanes are obtained in two steps. At the first stage interaction of, at least, one polyether diol with, at least, one aliphatic diisocyanate is realised in presence of zinc carboxylate in solvent medium. At the second stage obtained product is subjected to interaction with, at least, one ethoxylated aliphatic alcohol in solvent medium. After that, separation of solvents is performed and water is added. Polyurethanes are applied for manufacturing of water-containing cosmetic preparation. |
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Photopolymer composition and use thereof to produce holographic media Present invention relates to a photopolymer composition for producing holographic media, which contains three-dimensionally cross-linked organic polymers (A) or precursors thereof as a matrix, and compounds (B), which contain groups which, when exposed to actinic radiation, react with unsaturated compounds with ethylene fragments to form polymers (radiation-curable groups), and which are dissolved in said matrix or are located therein in a distributed state, as well as a component (C) which is at least one photoinitiator, wherein density of the polymeric cross-linking of the organic polymer, expressed through average molecular weight MS of two segments connected by polymer bridges, is a value ranging from 2685 g/mol to 55000 g/mol. The invention also describes a medium which is suitable for recording visual holograms, use of said medium and a method for exposure thereof. |
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Polyurethane prepolymer-based compositions based for production of holographic media Claimed invention relates to polyurethane composition for production of holographic media. Composition contains: (A) polyisocyanate component, which contains at least one polyurethane prepolymer with terminal NCO-groups exclusively on base of oligomeric or polymeric dysfunctional compounds, reaction-able with respect to isocyanates, with average molecular weights from 200 to 10000 g/mole, in which NCO-groups are bound with primary residues, (B) polymers, reaction-able with respect to isocyanates, (C) compounds, which contain groups, which when exposed to actinic irradiation react with ethylene-unsaturated compounds with polymerisation (radiation - solidified groups), and themselves do not contain NCO-groups, (D) stabilisers of radicals and (E) photoinitiators, with compounds, applied in component C), having refractive index nD 20>1.55. Also described are: method of producing medium of recording of visual holograms, application of such medium and method of hologram recording. |
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Method of obtaining polyols based on renewable initial raw material Invention relates to improved method of obtaining polyols, which includes the following stages: a) oxidation of unsaturated natural fats, unsaturated natural fatty acids and/or esters of fatty acids by dinitrogen monoxide, b) interaction of product, obtained at stage a), with hydrogen with application of heterogeneous catalyst on carrier. Invention also relates to method of obtaining polyurethanes, which includes stages: a) oxidation of unsaturated natural fats, unsaturated natural fatty acids and/or esters of fatty acids by dinitrogen monoxide, b) interaction of product, obtained on stage a), with hydrogen with application of heterogeneous catalyst on carrier with obtaining polyols, and c) interaction of polyisocyanates with polyols, obtained at stage b), as compounds, which have at least two hydrogen atoms, capable of reaction with respect to isocyanate groups. |
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Method of obtaining polyols basing on renewable initial raw material Invention relates to improved method of obtaining polyols, which includes the following stages: a) oxidation of unsaturated natural fats, unsaturated natural fatty acids and/or esters of fatty acids with dinitrogen oxide; b) interaction of the product, obtained at stage a), with hydrating reagent in presence of catalyst, which contains, at least, one transition metal from groups from 6 to 11; c) interaction of the reaction product from stage b) with alkylene oxides in presence of multimetalcyanide catalyst. Invention also relates to method of obtaining polyurethanes, which includes oxidation of unsaturated natural fats, unsaturated natural fatty acids and/or esters of fatty acids with dinitrogen oxide, interaction of the obtained product with hydrating reagent in presence of catalyst, which contains, at least, one transition metal from groups from 6 to 11, interaction of the reaction product with alkylene oxides in presence of multimetalcyanide catalyst with obtaining polyols, interaction of polyisocyanates with polyols as compounds, which have two hydrogen atoms, reactionable with respect to isocyanate groups. |
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Polyurethane composition and use thereof to produce holographic media Present invention relates to a polyurethane composition for producing holographic media. Said composition contains: A) a polyisocyanate component; B) an isocynate reactive component, which contains hydroxy functional multi-block copolymers B1) of the type Y(Xi-H)n with i=1-10 and n= 2-8 and number-average molecular weight greater than 1000 g/mol, wherein segments Xi are respectively built from alkylene oxide links of formula (I): -CH2-CH(R)-O- formula (I), wherein R is hydrogen, an alkyl or aryl residue, which can be substituted or interrupted with a heteroatom (e.g. ether oxygen), Y is the base of the starter unit and the fraction of segments Xi relative the total amount of segments Xi and Y is at least 50 wt %; C) compounds having a refraction index nD 20>1.55 and contain groups which react under the action of actinic radiation with ethylenically unsaturated compounds with polymerisation (radiation-cured groups) and do not contain NCO- groups themselves; D) radical stabilisers; E) photoinitiators; F) optionally catalysts; G) optionally auxiliary substances and additives. The invention also describes a method of producing media for recording visual holograms, media for recording visual holograms, use of such a medium and a method of recording holograms. |
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Method of producing flexible polyurethane foam Present invention relates to flexible polyurethane foam, which is characterised by density of 25-70 kg/m3 according to measurement in accordance with ISO 845, compression deformation at 40% (NSD) of 5-15 kPa according to measurement in accordance with ISO 3386/1 under the condition of measuring hardness during the first cycle, volume increase at water saturation (%) of at most 25, and water buffer capacity of 40-60%. The invention also describes production and use of said polyurethane foam, as well as a plant growth medium, a green wall and/or a green roof, having said foam material. |
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Present invention relates to a reactive isocyanate mixture used as a polyol component when producing polyisocyanurates, comprising a trimerisation catalyst selected from alkali metal carboxylates, quaternary ammonium carboxylates, wherein the carboxylates contain 1-12 carbon atoms, and obtained by reacting phthalic anhydride and/or trimellitic anhydride with a polyol having an average equivalent weight of 100-2500 and an average nominal hydroxyl functionality of 2-8, in such amounts that the molar amount of the anhydride ranges from 0.1 to 99% of the hydroxyl equivalent amount of the polyol, wherein the ratio of the number of carboxylic acid groups to the number of ester groups, both formed in the reaction between the anhydride groups and the polyol, is 0.9-1.1 to 1 and wherein at least 60% of the anhydride groups have reacted. The invention also describes a polyisocyanate composition containing said mixture, a binder composition containing such a polyisocyanate composition, use of such compositions to produce polyisocyanurates and polyisocyanurates. |
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Method of producing reactive polyurethane emulsion Invention relates to a method of producing a reactive polyurethane emulsion for an impregnating composition and/or coating for textile surfaces, as well as soft polyurethane. The method of producing a reactive polyurethane emulsion involves reacting polyols with diisocyanates in a deficit, or polyols in combination with di- and/or triols with diisocyanates in a deficit to form medium-viscosity, OH group-terminated prepolymers. Further, the OH prepolymers are uniformly mixed with an external emulsifier. Water is then added to the mixture of the prepolymer and the emulsifier, and for subsequent cross-linking of the OH group-terminated prepolymers, a di-, tri- and/or polyisocyanate is added. If needed, polyols or polyisocyanates are mixed and reacted with corresponding fire-retardant, antibacterial, dirt-repellant or hydrophilic agents. The soft polyurethane obtained using said method and then dried has Shore hardness of 45-60. |
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Soil reinforcement composition Invention relates to two-component composition for soil reinforcement by injection. The composition contains an isocyanate component and a hydroxyl component in equal volumes. The isocyanate component is polyphenylene polymethylene polyisocyanate containing 30-31% NCO groups. The hydroxyl component is a homogeneous mixture of an alkoxylated alkane diol or triol, with molecular weight of 370-600 or a mixture thereof, alkane diol or alkoxylated alkane diol with molecular weight of 60-200 and a urethane-formation catalyst. The urethane-formation catalyst is selected from a group comprising diazabicyclooctane, tin dibutyl dilaurate, dimethyl ethanolamine and methyl diethanolamine. |
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Method of producing polyols and use thereof in producing polyurethanes Present invention relates to a method of producing polyols used in synthesis of polyurethanes. The method involves reacting alkylene oxides, which contain at least 10 wt % ethylene oxide, with multifunctional initiating compounds with hydrogen atoms that are active in a Zerewitinoff reaction in the presence of a catalyst, concentration of which ranges from 0.004 to 0.5 wt %, with respect to the amount of the end product. The catalyst used is in form of catalysts based on alkali metal hydroxides, alkali metal hydrides, alkali-earth metal hydrides, alkali metal carboxylates, alkali-earth metal carboxylates or alkali-earth metal hydroxides. Neutralisation of alkaline polymerisation-active centres of the raw product of alkylene oxide addition is carried out by adding sulphuric acid in such a manner that the amount of catalyst contained in the raw polymer is neutralised by 66-100 mol % of the used acid of only the first dissociation step. |
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Aldimines and aldimine-containing compositions In formula : |
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Foamed polyurethanes with improved fatigue strength during repeated bending Invention relates to foamed polyurethane obtained by cross-linking: (a) polyisocyanates, (b) high-molecular weight compounds with groups that are reactive with respect to isocyanate groups, having average functionality of less than 2.5, (c) particles of a solid substance from radically polymerised polymers, dispersed in one of the high-molecular weight compounds with groups that are reactive with respect to isocyanate groups (b), (d) a blowing agent, (e) a chain-elongating agent, optionally a cross-linking agent or mixture thereof, (f) a catalyst and (g) optionally other additives, to form a reaction mixture and carrying out the reaction, wherein content of the chain-elongating agent is less than 6 wt % per total weight of components a) to f), and content of particles of the solid substance is higher than 15 wt % per total weight of components a) to f). The present invention also relates to a method of producing said foamed polyurethane, integrated foam plastic containing said foamed polyurethane, and use of such integrated foam plastic as a shoe sole. |
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Novel composition of polyisocyanate and polyether monoamine Invention relates to use of a composition obtained by reaction of polyisocyanate with index 100-250, which is diphenyl methane isocyanate, optionally containing a homologue which contains 3 or more isocyanate groups, and/or a version of such a diisocyanate with monoalkylether of polyoxyalkylene monoamine having average molecular weight of 550-3000 and content of oxyethylene higher than 50% by weight, calculated based on the weight of monoamine and an alkyl group having 1-4 carbon atoms as a plasticiser in thermoplastic and thermosetting materials which contain less than 50% hard units, and containing a certain number of urethane and/or urea groups. The invention also relates to a method of producing a plasticised thermoplastic or thermosetting material with content of hard units of less than 50%, which contains a certain number of urethane and/or urea groups, using said composition, as well as the material itself. |
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Elastomeric materials with high content of hard units and method for production thereof Invention includes a matrix substance which contains a plurality of urethane, urea and/or isocyanurate groups and having content of hard units of more than 50% (hereinafter matrix A), and a polymer substance which 1) does not contain groups which are capable of forming a urethane, urea or isocyanurate group upon reaction with an isocyanate group, 2) is interprenetrating with said matrix A and 3) is a reaction product of polyisocyanate and a polymer having number-average molecular weight greater than 500 and one group capable of reacting with isocyanate groups, with isocyanate index of 100-250 (hereinafter polymer substance B), and wherein the weight ratio of all ingredients used to produce said matrix A and said polymer substance B ranges from 10:90 to 90:10. Methods of producing said elastomeric material are also disclosed. |
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Invention relates to polyurethane compositions for producing holographic media which contain (A) one or more polyisocyanates, (B) one or more block copolymers which react with isocyanate, (C) one or more compounds having groups which, during actinic exposure, react with ethylenically unsaturated compounds with polymerisation, (D) optionally one or more free-radical stabilisers and (E) one or more photoinitiators. Topographic media obtained from such polyurethane compositions are also described. |
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Polyurethane elastomer and method of its obtaining Claimed invention relates to casting polyurethane elastomer and to method of its obtaining. Said elastomer includes product of reaction: (a) of prepolymer with end NCO-groups, (b) aliphatic diisocyanate and (c) aromatic di- or polyamine, where reagents are present in such amounts that equivalent ratio of NCO-groups to the sum of reaction-able NCO-groups is in the interval from 0.8:1 to 1.2:1. Component (a) is obtained by interaction of: (1) diphenylmethanediisocyanate with content of 2,4'-MDI-isomer more than 80 wt %, with (2) highly molecular polyol, selected from group, consisting of polyoxyalkylenepolyols with the mean molecular weight from 250 to 10000, complex polyester polyols with mean molecular weight from 250 to 10000, and their mixtures, at temperature from 30°C to 150°C, during time sufficient for formation of prepolymer with end NCO-groups, OH-groups of said polyol reacting with NCO-groups of said diphenylmethane diisocyanate in the range from 1.5 : 1 to 20 : 1. Component (b) is selected from group, consisting of isomers of 1,1'-methylenebis(4-isocyanatocyclohexane), 1,4-cyclohexane diisocyanate, isoforon diisocyanate, 1,3-xilylene diisocyanate, hexamethylene diisocyanate, isomers of m-tetramethylxylylene diisocyanate (TMXD1), their mixtures and their prepolymers. |
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Invention relates to a method of producing a polymer-modified polyol, where olamine reacts with organic polyisocyanate in the presence of a polyol and at least one catalyst which is a metal salt of an organic acid, where the olamine reacts, at least preferably polyfunctionally, with isocyanate, where said catalyst or at least one said catalyst is a metal salt of an organic acid which does not have a metal-carbon bond, and where viscosity of the polymer-modified polyol is at least 2250 mP when measured at 25°C using a Brookfield viscosimeter or is compatible with a Brookfield viscosimeter system. The invention also describes versions of the method of producing a polymer-modified polyol, where the catalyst has the formula M(O.CO.R.CH3)2, where M is a metal, R is a carbon chain with 6-20 carbon atoms, wherein the chain is straight or branched with side functional OH groups, and/or with or without double bonds, and where the catalyst is a metal salt of a fat monohydroxy acid, respectively. Described also is a polymer-modified polyol produced using the disclosed methods, a method of producing polyurethane foam plastic (foamed polyurethane) using such a polyol and elastic polyurethane foam plastic (elastic foamed polyurethane) produced using said method. |
Another patent 2551285.