Method of production of rigid polyurethane foam |
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IPC classes for russian patent Method of production of rigid polyurethane foam (RU 2131440):
 Method for elastic foam / 2130466
The invention relates to a method for producing elastic foam cellular structure, which can be used in the automotive industry, housing construction and other industries, including the production of sports destination
The method of producing foam / 2128675
The invention relates to orthopedics, in particular to the creation of the material used to make impressions of the foot and making the impression of a plaster positive in the manufacture of individual insoles and shoes
 A method of obtaining a flexible polyurethane foam for the manufacture of upholstered furniture elements / 2128193
The invention relates to polyurethane chemistry and relates to a method of obtaining a flexible molded polyurethane foam used in furniture industry
 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
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.
 Mixed polyols and based polyurethanes / 2352592
Mixture consists of polyols expressed by compositions
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(57) Abstract: Describes how to obtain a rigid polyurethane foam by the interaction of MDI and polyether component on the basis of tall oil and triethanolamine in the presence of axiorcelenddinoarcam block copolymer, characterized in that as the polyester component used hydroxyl-containing compound with a hydroxyl number of 270-380 mg KOH/g, obtained by the interaction of tall oil with triethanolamine using a weak acid catalyst based on vegetable and silicone oils with additive (three)tetraamine and saturated hydrocarbons. The technical result - the creation of a method having different start time, with the improvement of physico-mechanical characteristics and reduce the fragility of the target product. 2 C.p. f-crystals, 1 table. The invention relates to a method for producing a rigid polyurethane foam serving as insulating coatings as when filling in listenbee space, and the deposition on different surfaces, and is used primarily in the construction and chemical industries. A method of obtaining hard penopoliuret (a mixture of triol and tetrol), tertiary amines, water, prestabilization, refrigerant, and as the isocyanate component is a polyisocyanate (PUR-M (OST 6-05-455-82)). Resulting in a known manner, the polyurethane foam has insufficient mechanical strength under dynamic loading associated with the fragility of the product. In addition, the obtained polyester component allows to obtain products from foam only by casting in listenbee space (starting time 30 s). The closest in technical essence (receiving insulating coatings of rigid polyurethane foam with increased dimensional stability under dynamic loads, and the polyester component suitable for casting method of producing coatings (such as "refrigerator"), and a sputtering method) is a method of obtaining a rigid polyurethane foam, comprising a polyester component on the basis of tall oil, triethanolamine and alkali CON (and.with. 1281561, class c 08 G 18/14 from 14.12.84). A method of obtaining polyurethane foam allows you to create insulating coating with sufficient strength in bending and other dynamic loads, however, the method used for the synthesis of polyester (hydroxyl-containing compounds-GSS) does not allow races is it 15, as well as reducing energy costs during the synthesis of GSS. The aim of the present invention is a method for rigid polyurethane foam based on hydroxyl-containing compounds having different start time, increased physical and mechanical characteristics (FMH) and reduced the fragility of the resulting polyurethane foam; the start time determines the way of drawing on the insulated surface. Moreover, it is necessary to take into account the competitiveness of the foam with the existing prototype, especially in modern conditions is energetically expensive technologies. The proposed method differs from the known fact that as the catalyst synthesis GSS is not alkaline component (CON) and low (KM-1) on the basis of a mixture of vegetable and silicone oils with the addition of three-tetraamine and saturated hydrocarbons. This allows to minimize the energy consumption while saving on hydroxyl-containing compound (GSS) catalytic activity, and in combination with simple polyesters to obtain the polyester component (component a) for rigid polyurethane foam with different start time, gelation and tack-free. Complex catalyst KM-1 is produced by polycondensation method is equal to the number of races is> and a pressure of 1 to 10 MPa in the presence of 2 - 5 meters including water, 5 to 10 meters, including saturated hydrocarbons and 3 - 8 m H. three-tetraamine 100 m H. the above liquids for 0.5 - 2.5 hours. Example 1: Synthesis of hydroxyl-containing compounds (GSS). In a round bottom flask with a capacity of 1000 ml equipped with a system for removal of water vapor, refrigerator, enter 450 meters including tall oil (TM), 50 m H. the proposed catalyst KM-1, is mixed with a simultaneous rise in temperature before boiling the mixture. Maintained at the boiling temperature of 1 to 3 min and injected at one time 175 m H. triethanolamine (input is carried out in a continuous stream for a period of not more than 3 minutes). Again bring to a boil (boiling point installed on practical results and ranges from 80 to 135oWith depending on the amount of moisture in the mixture and light fractions marginal hydrocarbon), allowed to stand for 1 to 15 minutes (the time is determined by the required amount of free moisture), turn off the heat and cool to room temperature either in the reactor or directly into the container. After soaking in the container for two days GSS ready for further use. The viscosity of the GSS at room temperature (+18o(C) after complete cooling n-50o(C) for connection with other components of the polyester part of the foam (viscosity at (50+1)oWith the device B3-246-not more than 120 seconds). If necessary, increase the bending foam (when exposed to dynamic loads, for example, after applying a waterproofing coating on old asphalt coating, having, as a rule, multiple delamination of the overlay plots), the amount of catalyst KM-1 can be increased up to 100 m h Get catalytically active GSS with a hydroxyl number of 270 - 380 mg KOH/g and a code name AC-1. Example 2: GSS at 10 m H. (laboratory sample) is poured into the tank to froth, add 3,0 m h Lupranol-294, 2 m H. Laprol-373, 7,0 m CH trichloracetate(TCHEPH), 0,3 m CH dimethylethanolamine(DMEA) and 0.08 m H. of foam controller - siloxane block copolymer CEP-2(3,6,Luprosil-408) and after stirring for 30 - 60 enter 22,0 m H. MDI, mix 6 to 10 to get a sample with small pores, after aging - flexible and durable polyurethane foam suitable for waterproofing roofs. Example 3: REG at 10 PM hours poured into the tank to froth, add 5 m H. of Supramole-294 and 7.0 m H. TCHEPH, 0,075 m H. CEP-2 mix and connect with 22LASS="ptx2">Example 4: GSS in the amount of 12 m H. connect with 3 m h Laperla-373, 7 m H. TCHEPH, proregulation of 0.1 m H. CEP-2 and 0.12 m H. exitos B-1, 0,07 m H. water, 2,0 m H. DMAA, 0,4 m H. of potassium acetate solution (50%) of a mixture of triethanolamine(TEOF) and ethylene glycol(EG) in equal proportions between themselves and 5 m H. Halon 226 (use other seasonopening halocarbons - 123,123 and V and boiling liquids - isopentanol, cyclopentane, fluorinated ethers, boiling at 20 - 50oC) and stirred with 30 m CH polyisocyanate for 3 to 4 C. Obtain a sample suitable as insulating coatings applied by a sputtering method. Example 5: GSS in the amount of 3.5 m H. connect with 4.5 m H. of Supramole-294, 8,0 m h Laperla-564, 0,3 m H. CEP-2, 0,3 m H. water, 5,0 m H. Halon 226, 0,12 m H. of potassium acetate solution (50%) in a mixture of triethanolamine(TEOA) and diethylene glycol(deg) in equal proportions between themselves, 5 m H. TCHEPH, 0,1 m H. sodium nitrite, pour in 30 m H. MDI and get the foam for use in product-type "shell" (for sectional application in thermal insulation of pipes). Example 6: GSS in the amount of 6.0 m H. connect with 2.0 m H. of Supramole-294, 6,0 m h Laperla-ES, 2,0 m h Laperla-373, 7,5 m H. Halon 226, 0,35 m H. CEP-2, 0.5 m including water, 0.2 m including DMAA, 0,1 m h is holodilnik". In the table (see the end of the description) describes some properties of polyurethane-based offer polyester components (* - comparative). Using the same hydroxyl-containing compounds(SCAC) code name AC-1 in various polyester component (component a) allows to obtain a polyurethane foam also different method of application, and gives the products of polyurethane foam with good dimensional stability under dynamic loads, low fragility at the lowest possible energy and labor in the production of Sukhoi civil aircraft, which, in turn, allows you to create competitive products of rigid polyurethane foam. The proposed method of producing rigid polyurethane foam based on hydroxyl-containing compounds allows you to extend the class applied polyurethane foam. 1. A method of obtaining a rigid polyurethane foam by the interaction of MDI and polyether component on the basis of tall oil and triethanolamine in the presence of axiorcelenddinoarcam block copolymer, characterized in that as privilegelevel use hydroxyl-containing compound with a hydroxyl number of 270 - 380 mg KOH/g, obtained by the interaction of tall oil with three of the oils with the addition of (three)-tetraamine and saturated hydrocarbons. 2. The method according to p. 1, characterized in that hydroxystearate connection used in a mixture with a simple polyester. 3. The method according to p. 1, characterized in that the interaction is carried out in the presence of a blowing agent, trichloracetate and catalyst retinoblastoma and trimerization.
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