A method of obtaining a flexible polyurethane foam for the manufacture of upholstered furniture elements |
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IPC classes for russian patent A method of obtaining a flexible polyurethane foam for the manufacture of upholstered furniture elements (RU 2128193):
 
 The method of obtaining filled with polyurethane foam for insulation products / 2123013
The invention relates to the production of polyurethane foams with reduced Flammability and can be used for the manufacture of insulation products
A method of obtaining a semi-rigid polyurethane foam / 2110530
The invention relates to the chemistry of the production of cellular plastics, namely the production is filled with polyurethane foam, which can be used, for example, to remove paraffin and rubbing ski lubricants, as a cleaning tool in everyday life
 A method of obtaining a molded urethane elastomers / 2107073
The invention relates to methods for molding urethane elastomers with high strength properties and may find application in engineering, for example, for the manufacture of coating rolls of paper machines, rollers assemblies of sheet metal and other bulky items
 Method of producing elastic polyurethane foam cold forming and activating the mixture for its implementation / 2103279
The invention relates to the field of technology for elastic monopolarity in the presence of a catalyst, and may find application in the manufacture of gaskets furniture and upholstered car seats
 The way to obtain in closed form elastic polyurethane foam product and elastic polyurethane foam products / 2100383
The invention relates to the chemistry of polyurethanes and concerns a method for obtaining the closed form elastic polyurethane foam products used in the furniture industry, vehicles and so on
 The method of producing polyurethane foams / 2098434
The invention relates to the production of polyurethane foams and concerns a method for obtaining polyurethane foam plastics, in which the foaming is produced using pure nitrogen as a pore-forming means
 Polyol as one component of isocyanate foams with reduced flammability / 2098432
The invention relates to the production of foams with reduced Flammability based on isocyanates and can be used in the manufacture of thermal insulation in industrial and civil construction at the place of use
Mixture for obtaining flexible polyurethane foam / 2326132
Invention pertains to the mixture for obtaining flexible polyurethane foam and can be used as mastic for hydro and thermal insulation of foundations, buildings, pipelines, as well as for filling cavities in building structures. The mixture contains defined ratios of the following components: a hydroxyl containing oligomer-copolymer of butadiene and piperylene with molecular mass of 2100 and containing 0.92% hydroxyl groups; isocyanate component - polymethylene polyphenyl isocyanate with 29-31% content of isocyanate groups; catalysts: dibutyl tin dilaurate and N,N,N- triethylamine; water; glycerine; polydimethyl siloxane and polydimethyl siloxane modified by a polyester in the form of foam stabilisers and extra bitumen. Use of bitumen considerably lowers moisture absorption of the material and increases viscosity of the foam systems. This also enables the material to retain the density attained during foaming. Use of defined foam stabilisers in the mixture enables formation of more fine cells, with high stability and attainment of low density of the polyurethane foam.
 Polyurethane foam made of hydroxymethyl-containing polyesterpolyols / 2352593
Invention refers to method for making bulk, high resilience slabstock or moulded foam, used for upholstery, automobile seats and panel cushions, for packing, other applications to softening and energy management, for sealing and other applications. The presented method involves as follows. Organic polyisocyanate contacts with polyol compound containing high mass equivalent polyol or mixed polyols with foaming agent, gelling catalyst and surface-active substance added. At least 10 wt % of high mass equivalent polyol (polyols) represent one or more equivalent mass hydoxymethyl-containing polyesterpolyols at least 400 up to 15000 produced by interaction of hydoxymethyl group containing fatty acid with 12-26 carbon or this acid ester atoms and compound initiator polyol or polyamine, thereby polyesterpolyol contains as follows: [H-X](n-p)-R-[X-Z]p, where R is residual compound initiator, X is independent, -O-, -NH- or -NR'-, while Z- represents linear or branched chain containing one or more groups A, independently chosen of groups A1, A2, A3, A4 and A5, expressed by formulas (II), (III), (IV), (V) and (VI), respectively. Besides there is disclosed polyurethane foam made by the declared method. Declared method ensures making polyurethane foams with using polyol from renewable source.
Method of obtaining compounded foam polyurethane / 2355713
Invention concerns method of obtaining compounded foam polyurethanes for operation as shock, heat and sound absorbing layers. Compounded foam polyurethanes are obtained by interaction of 100 weight parts of polyol component and 20 weight parts of polyisocyanate component, where polyol component is mixed preliminarily with 70-100 weight parts of rubber chips, and reaction mix is foamed and solidified at 160°C or higher to component destruction temperature. Butadiene and piperylene copolymer with 1200-3200 molecular weight and 0.8-1.1% content of hydroxylic groups is used as polyol component, and polymethylenepolyphenylisocyanate with 29-31% content of isocyanate groups is used as polyisocyanate component.
Method for production of polyurethane foam / 2356915
Invention is related to method for production of polyurethane foam with application of secondary waste of polyethylene terephtalate, and may be used for production of hard polyurethane foams. Polyurethane foam is produced by interaction of polyisocyanate with polyol component containing secondary waste of polyethylene terephtalate dissolved in triethanolamine or in mixture of mono-, di-, trichloracetic acids, in amount of not more than 67 wt % from total weight of polyol component. At that interaction is carried out at the ratio of polyol component : polyisocyanate as 1:1 - 1:2. Prepared polyurethane foams have good consumer properties, such as compression strength, oil-, heat resistance and reduced inflammability.
 Flexible polyurethane foam / 2376321
Polyurethane foam is obtained by mixing a pre-polymer with foaming ingredients, containing at least one multifunctional isocyanate and water, which react releasing carbon dioxide. The pre-polymer, which has terminal hydroxyl groups, is obtained by reacting at least one polyol with less than a theoretical amount of at least one multifunctional isocyanate. The pre-polymer which is stable during storage can be obtained with low or high viscosity by choosing the corresponding amount isocyanate, which reacts with polyol. Use of more viscous pre-polymer enables regulation and setting the size of cells of the obtained foam.
Method of producing rigid polyurethane foam / 2385330
Method involves reacting a composition based on organic polyisocyanates with a composition which reacts with isocyanates in the presence of a hydrocarbon as a foaming agent. The said composition which reacts with isocyanates contains a maximum of 20 wt % polyester-polyols obtained from secondary streams, wastes or residue from production of DMT and/or PET, between 30 wt % and 50 wt % polyether-polyol obtained by reacting propylene oxide with an aromatic amine as an initiator, and between 30 wt % and 50 wt % polyether-polyol which is not initiated by an aromatic amine, where amount is based on total amount of the compound which reacts with isocyanates. Rigid polyurethane foam or polyisocyanurate foam modified with urethane corresponding to this proposed invention has low lambda value especially at 10°C.
Fluoro-hydrocarbon compositions / 2395539
Present invention relates to compositions for foaming foam plastic used in insulation materials at low temperatures. The said composition ontains 1,1,1,3,3-pentafluorobutane (HFC - 365mfc) and 1,1,1,3,3-pentafluoropropane (HFC-245fa) with mass ratio HFC-365mfc/HFC-245fa between 65:35 and 73:27.The invention also relates to a premix for producing foamed polyurethane or modified foamed polyurethane which contains such a foaming composition, at least one polyol and a catalyst for reaction of isocyanates and polyols. The invention also describes a method of producing foamed polyurethane or modified foamed polyurethane using the disclosed foaming composition, as well as heat insulation material which contains foamed polyurethane or modified foamed polyurethane made using the said method. When prepared systems are used completely, the foaming composition does not have an ignition point, which provides safe production of (modified) foamed polyurethane.
 Polyurethane system and method of making foamed low density shoe articles with solid coating / 2397996
Present invention relates to a liquid polyurethane reactive system for producing shoe articles with a solid coating, e.g. sole inserts, soles etc. This reactive system includes at least one polyol meant for reaction with at least one isocyanate prepolymer, an expansion agent, an additive which contains a catalyst and expanded microspheres. The polyol is selected from polyester polyols with molecular weight from 1500 to 3000. Amount of expanded microspheres ranges from 1.0 to 30 % of the weight of polyol and the additive. Amount of the expansion agent ranges from 0.5 to 3.5% of the weight of polyol and additive. The invention also relates to a method of producing foamed shoe articles with a solid coating using the said liquid polyurethane system, resulting in a foamed structure with spontaneous foam density between 0.05 and 0.22 g/ml, as well as to foamed polyurethane shoe components made using the said method, and to use of expanded microspheres in the said liquid reactive polyurethane system.
 Foamed polyurethane / 2411254
Invention relates to polyurethane used, for example, as seat cushions, decorative elements for the inside of cars etc, and to methods of producing said polyurethane via radical-initiated cross-linking in the presence of at least one agent which produces radicals and under the effect of ionising radiation, respectively. According to the given method, at least one polyfunctional isocyanate, at least one polyol which is completely or mainly polyether polyol with molecular weight higher than 1500, and foaming ingredients are subjected to addition polymerisation and a foaming reaction in the presence of at least one component with a reactive double bond to obtain a foamed mass with a polyurethane matrix. The polyfunctional isocyanate is not 4,4'-diisocyanate diphenylmethane or does not contain 4,4'-diisocyanate diphenylmethane, and the foamed mass undergoes radical-initiated cross-linking with the component with the reactive double bond which is an acrylate or methacrylate polymer containing at least two hydroxyl groups which also react with the said isocyanate so as to be embedded into the polyurethane matrix.
 Polymeric polyols and polymer dispersions obtained from hydroxyl-containing materials based on vegetable oil / 2412954
Invention relates to polymeric polyols obtained from hydroxyl-containing materials, as well as dispersions of polymer particles in the said material. The polyol has a continuous polyol phase and dispersion ethylene-unsaturated polymer particles grafted on at least one stabiliser. The polyol phase contains at least one hydroxymethyl-containing polyester polyol derived from a fatty acid or a fatty acid ester. The polyol is a product of reaction between 9(10)-hydroxymethyl stearate or its alkyl ester and polyether polyol, containing ethylene oxide or propylene oxide links. The dispersion particles are a vinylaromatic polymer, nitirle with ethylene unsaturation or a mixture of two or more of them. The stabiliser is an addition compound of polyether polyol and vinylmethoxy silane or isocyanate with ethylene unsaturation.
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(57) Abstract: The invention relates to polyurethane chemistry and relates to a method of obtaining a flexible molded polyurethane foam used in furniture industry. The invention is directed to the improvement of physico-mechanical characteristics of the foam, namely the reduction of residual deformation and the increase in destructive stress in compression. A method of obtaining a flexible polyurethane foam for the manufacture of upholstered furniture elements lies in the interaction of a mixture of hydroxyl-containing compounds, silicone prestabilization, foaming agent, catalyst and isocyanate component, followed by pouring the composition in the form of foaming and curing, characterized in that a mixture of hydroxyl-containing compounds, a mixture with an average equivalent weight of 1000 - 1280 and an average functionality of 2.8 to 3.2, which includes oxypropylene triol (mol.m. 5000, ethoxylated diol (mol.m. 10000, ethoxylated pentaerythritol mol. m 500 and/or nitrogen containing oligoether mol.m. 290, as catalyst, a mixture of 1,4-diazabicyclo (2.2.2)octane, dimethylethanolamine and/or urea in an amount of 0.6 to 1.0 wt.h. the new and relates to a method of obtaining a flexible molded polyurethane foam, which can be used in the furniture industry. A method of obtaining a molded polyurethane foam (PUR) - based polyol as one mixture containing triol (mol.mass 4000-7000, diol or triol with mol. mass 600-3500 and polyoxyalkylene mol.mass 100-3500-modified polyol MDI, a catalyst, a blowing agent is halon. Get molded polyurethane foam with improved elasticity, which can be used in furniture production [1 - DK 231214 But, 1985]. The disadvantage of this method is the use of halon as a blowing agent. In addition, the use as catalyst of triethylenediamine undesirable because of its high toxicity. Known composition for the manufacture of flexible molded products, furniture products, including a mixture of polyether with an average equivalent weight of Ecf.equal to 1600, and the average functionality of the mixture f, equal to 3.4, the catalyst, the organosilicon compound, water, and as the isocyanate component containing a solution of the product of the interaction of a mixture of MDI and toluene diisocyanate with polyoxyethyleneglycol mol. mass 4500-6000 and polyoxyethyleneglycol with oxyalkylated triol (mol.mass 4500-6000, the nitrogen-containing oligoester mol.m. 290-610, oxyalkylated triol (mol.m. 3000-3600. The use of such mixtures leads to the production of polyurethane foam with a low apparent density, however, the relative residual strain is not high enough, and the magnitude of the compressive stress of the material is not more than 3.5 kPa. The aim of the present invention is to reduce permanent deformation of the polyurethane foam and the increase of compressive stress. This objective is achieved in that, as a polyol as one component polyurethane foam system uses a mixture of hydroxyl-containing compounds with an average equivalent weight 1000-1280 and an average functionality of 2.8 to 3.2, which includes oxyalkylated triol (mol.m. 5000, ethoxylated diol (mol. m 4500-10000, ethoxylated pentaerythritol mol.m. 400-800 and/or nitrogen containing oligoether mol.m. 290. The catalyst in this system is a mixture of 1,4-diazabicyclo(2.2.2)octane, dimethylethanolamine and/or urea, the total number of which amounts to 0.6-1.0 wt.h. on 100 wt.h. a mixture of hydroxyl-containing compounds in the following ratio catalysts. It was found that the use of polyol as one component with E equal to 1000-1280, and f, ulichennym voltage compression. The calculation of the average functionality (fcf) and an average equivalent weight (Ecf) was carried out according to the following formula:< / BR> < / BR> wherei- the share of each component in the mixture; Mimolecular weight of the individual component; %HEithe content of hydroxyl groups in a separate component; Eiequivalent weight of a single component; 17 - molecular weight hydroxyl group. According to the invention uses the following raw materials: Polyethers brands Laprol 5003-2B-15 - TU 6-55-62-93 Laprol 504-2-100 - TU 2226-313-10488057-94 Laprol 10002-2-80 - TU 6-55-221-1208-91 Lupranol 294 - TU 6-55-221-1222-91 The polyisocyanate (PIZ) - TU 113-03-38-106-90 (or imported product) Toluenediisocyanate (TDI) 80/20 - TU 113-03-17-17-85 (or imported product) Distilled water - GOST 6709-72 1.4-diazabicyclo(2.2.2)octane (DABCO) - TU 6-09-4234-77 (or imported product) Dimethylethanolamine (DMEA) - TU 6-02-1086-91 Prestabilization Product 133-176 - TU 6-02-1233-82 (or imported product) Urea - GOST 2081-92 The processing composition is carried out both at the casting machines for the production of polyurethane foam, and manual methods of mixing on a mechanical stirrer. Dadiani, a blowing agent, prestabilization, mixtures of catalysts and all stirred by a mechanical stirrer for 1->3 min depending on the total mass of the component. Then add the required amount of isocyanate component, the entire composition is mixed with 8-10 and poured into the form. Can be pre-prepared as a mixture of hydroxyl-containing compounds (separately), and their mixture with catalysts and other additives. The invention is illustrated by the following examples. EXAMPLE 1. Prepare a mix of oxypropylene triola mol.m 5000 (%HE = 1.01) - 95.2 wt.h., ethoxylated diol (mol.m. 10000 (%HE = 0.34) - 2.9 wt. 'clock, nitrogen oligoether mol.m. 290 (%HE = 23.3) - 1.9 wt.h. (Ecf= 1000, fcf= 3.2). Next, enter 0.4-0.5 wt.h. silicone prestabilization (product 133-176), 0.2 wt.h. DABCO, 0.6 wt.h. DMAA, 3.3 wt.h. a blowing agent (water). After stirring until the mixture becomes homogeneous in composition is administered to 45 wt.h. isocyanate component with a content of NCO-groups 36-38% (mixture of TDI 80/20 and PIZ). Stirred for 8-10 C and poured into the metal mold (HH mm), warmed up (505)oC. a Closed form incubated for 8-10 minutes Satama density, breaking stress in compression, the residual deformation under compression for 72 hours, the tear resistance. The properties of foam on this and other examples are presented in the table. EXAMPLE 2. Prepare a mix of oxypropylene triola mol.m 5000 - 95.3 wt.h., ethoxylated diol (mol. m 10000 - 1.9 wt.h., ethoxylated pentaerythritol mol.m. 500 - 2.8 wt.h. (Ecf= 1233, fcf= 3.2). Next, enter 0.4 wt.h. silicone foam controller, 0.2 wt.h. DABCO, 0.27 wt. including DMAA, 0.5 wt.h. urea, 3.3 wt.h. a blowing agent (water). Next, similarly to example 1. EXAMPLE 3. Prepare hydroxyl-containing compound with Ecf= 1280, fcf= 2.8. The catalytic mixture - 0.6 wt.h. consists of DABCO + DMAA. Hereinafter in example 2. EXAMPLE 4. Prepare hydroxyl-containing compound with Ecf= 1230, fcf= 3.0. The catalytic mixture - 0.8 wt.h. consists of DABCO + urea. Hereinafter in example 2. EXAMPLE 5 (the prototype). Prepare hydroxyl-containing compound with Ecf= 1600, fcf= 3.4. The catalytic mixture - 0.7 wt.h. consists of DABCO + DMAE + triethanolamine. The proposed material has passed the industrial development and use N 231214. Published 24.12.85, MCI C 08 G 18/06, C 08 G 18/14. 2. Patent Of Russia No. 2022973. Statements. 13.08.91 g, op. 15.11.94, B N 21, MKI C 18/12 08 C 08 G 18/12, 101:00). A method of obtaining a flexible polyurethane foam for the manufacture of upholstered furniture elements by the interaction of a mixture of hydroxyl-containing compounds, silicone prestabilization, foaming agent, catalyst and isocyanate component, followed by pouring the composition into the form, foaming and curing, characterized in that a mixture of hydroxyl-containing compounds, a mixture with an average equivalent weight of 1000 - 1280 and an average functionality of 2.8 to 3.2, which includes oxypropylene triol with a molecular weight of 5000, ethoxylated diol with molecular weight of 10000, ethoxylated pentaerythritol with a molecular mass of 500 and/or nitrogen containing oligomer with a molecular mass of 290, and as catalyst a mixture of 1,4-diazabicyclo(2.2.2)octane, dimethylethanolamine and/or urea in an amount of 0.6 to 1.0 wt.h. on 100 wt.h. a mixture of hydroxyl-containing compounds.
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