Method of producing elastic polyurethane foam cold forming and activating the mixture for its implementation |
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IPC classes for russian patent Method of producing elastic polyurethane foam cold forming and activating the mixture for its implementation (RU 2103279):
 The sealing composition / 2089589
The invention relates to the field of production of two-component compounds with increased strength and can be used to seal the membrane elements
 The method of obtaining models moulds / 2073028
 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
 A method of obtaining a hard moulded polyurethane foam / 2080336
The invention relates to the field of production of rigid moulded polyurethane foam and can be used in various industries for manufacturing of large-sized products of variable thickness and complex configuration
 The way to obtain hydroxyl-containing component for the production of flexible molded polyurethane foam / 2076877
The invention relates to polyurethane chemistry and relates to a method of obtaining a hydroxyl-containing component for the manufacture of flexible molded polyurethane foam (PUF), which can be used in the furniture and automotive industries
 The method of producing polyurethane foam / 2076115
The invention relates to methods for producing a rigid polyurethane foam used in the manufacture of refrigeration equipment, construction, etc
 The method of producing polyurethane and composition to obtain / 2073027
The invention relates to a method for producing a polyurethane elastomer, fluoropolymer flexible segments and isocyanate terminal groups
 Method of producing elastic polyurethane foam / 2072367
The invention relates to a method for producing a flexible polyurethane foam used in furniture industry for the manufacture of depreciation of items of different configurations
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.
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(57) Abstract: 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 technical problem solved by the invention, the developing method of producing lightweight elastic monopolarity with improved physical-mechanical indicators using available technological system nitrogen-containing catalysts softer action of triethanolamine, triethylamine, dimethylaminomethylphenol and dimethylethanolamine, as well as the composition of the activating mixture for this method based on the available and technologically advanced ingredients. The method is carried out by full interaction and isocyanate component in the presence of nitrogen-containing catalysts. What's new is that as the activating mixture of polyol as one component of the use of nitrogen-containing catalysts of triethanolamine, triethylamine, dimethylaminomethylphenol and dimethylethanolamine taken in the ratio/0,2 - 0,5/ : /0,05 - 0,30/ : /1,6 - 3,2/ : /0,25 - 0,50/ accordingly, and in total /2,1 - 4,5/ m H. the 100-m h polyetherdiol, and the interaction of exercise p is significant and qualitative composition of the activating mixture of polyol as one component, includes, M. H.: simple polyetherdiol 100, triethylamine 0,05 - 0,32, water 2,70 - 4,40, dimethylethanolamine 0,26 - 0,53, triethanolamine 0,21 - 0,53, dimethylaminomethylphenol 1,60 - 3,20, silicone foam controller 0,20 - 0,37. 2 S. p. f-crystals, 2 tab. The invention relates to a technology for production of flexible polyurethane cold molded in the presence of catalytic systems and can be used in the manufacture of furniture parts and car seats. Known methods for producing flexible polyurethane cold molded by the interaction of ready-made form polyester and isocyanate components. When this polyester component (component a) And, as a rule, is a physical mixture, which includes several types of oligoesters, extension cords, and suturing of the polymer, catalysts, surfactants and other modifiers technology of obtaining and properties of products made of polyurethane and isocyanate component (component B) is a product of synthesis of various isocyanates with different chain extenders based oligoesters, glycols, amines or aminoalcohols (Oligoesters. Isocyanates. Systems.- Directory.- Niitekhim, 1987, S. 18, 23). The closest in technical essence to predictive polyol as one component in the form of an activating mixture on the basis of a simple polyetherdiol, water, silicone stabilizer, nitrogen-containing catalysts, with the isocyanate component in the form of modified urethane groups of the polyisocyanate mixtures based diphenylmethanediisocyanate containing 22 - 33% of NCO-groups, carried out with the ratio of foam equal to 80, and in which the nitrogen-containing catalysts using 1,4-diazabicyclo(2,2,2)-octane (DABCO) and dimethylethanolamine (DE, application 4205934), and activating the mixture to obtain a flexible polyurethane foam cold molding, comprising an aqueous solution of nitrogen-containing catalysts of 1,4-diazabicyclo(2,2,2)-octane (DABCO), dimethylethanolamine, as well as simple of a hydroxyl-containing polyetherdiol and silicone foam controller (DE, application 4205934). The disadvantage of this method and the activating mixture participating in the process of obtaining molded from flexible polyurethane cold molded, is used as one of the nitrogen-containing catalysts of the catalyst DABCO, which is the crystalline product which requires additional operations to its dissolution, which leads to excessive complexity of the process and the complexity of its hardware design. This catalyst is also ASTU activating mixture, this gives the latter due to its high catalytic activity (Art.,below.most speed in the polymerization of the polyurethane system with obtaining zakrytoyacheistoy foam structure molded products requiring to eliminate shrinkage phenomena immediate crimping products in the mill after removal from the form to open cell foam. The technical task is to develop a method of producing a lightweight flexible polyurethane cold cure with improved physical and mechanical characteristics with the use of affordable and technologically advanced catalytic systems of the nitrogen-containing catalysts softer action (allowing a gradual increase in the viscosity of the system during polymerization), as well as the selection of the composition of the activating mixture for this method based on a system of affordable and technological catalysts from nitrogen-containing compounds, allowing for a reduced rate of gelation and the immutability of the starting characteristics to increase the lifting height of the foam in the foaming process of the polyurethane system. Problem solving is achieved by a method for producing elastic penopolyuretans simple polyetherdiol, silicone foam controller and an aqueous solution of nitrogen-containing catalysts, with the isocyanate component in the form of modified urethane groups of the polyisocyanate mixtures, as a nitrogen-containing catalysts are catalysts of triethanolamine, triethylamine, dimethylethanolamine and dimethylaminomethylphenol taken in the ratio(0,21 - 0,5) : (0,05 - 0,30) : (0,25 - 0,50) : (1,60 - 3,20) respectively and in total (2,1 - 4,5) per 100 wt. PM polyetherdiol, with a ratio of polyol as one and isocyanate components (1,7 - 2) : 1 and the ratio of foam 128, and activating the mixture to the method of obtaining the flexible polyurethane cold molded, comprising an aqueous solution of nitrogen-containing catalysts, polyetherdiol and silicone foam controller, contains as simple polyetherdiol polyester (mol. mass (M m) 5000, functionality of 3.0 and a hydroxyl number of 32 - 36 mgKOH/g, and as the nitrogen-containing catalyst system of the catalysts of triethanolamine, triethylamine, dimethylethanolamine and dimethylaminomethylphenol in the following ratio of a component in a mixture, by weight.h.:Simple polyetherdiol - 100 The triethylamine - 0,05 - 0,32 Water - 2,70 - 4,40 Dimethylated toregulate - 0,21 - 0,37 Use in performing the method as activated mixture polyol as one component of the system nitrogen-containing catalysts on the triethanolamine, dimethylethanolamine and combined with triethylamine and dimethylaminomethylphenol taken in certain proportions between themselves and in relation to polyetherdiol together certain relationships and hydroxyl-containing isocyanate component and the constancy of the coefficient of the foam allows more gently and gradually increase the viscosity of the polyurethane system by reducing the speed of gelation unchanged starting characteristics and to obtain a foam with a higher rise and partially dissected cells directly in the process of molding articles, which reduces the weight of the finished product and to improve its physical-mechanical parameters. In the process, using the following ingredients. Simple polyetherdiol with M m = 5000, fto= 3, MS = 32 - 36 Laprol 5003-2B-10 and Laprol 5003-2-15 represent the ethoxylated polyoxypropylene. Issued by TU 6-05-1513-75 and THE 2226-006-1048805-94. Physical nature - transparent viscous liquid. The triethylamine - tertiary aliphatic moneies color with a pungent smell, M m = 101,2. Triethanolamine is a viscous liquid with a smell of ammonia, obtained by the interaction of ethylene oxide and ammonia, and M m 149,19. Produced according to TU 6-09-2448-86. Dimethylethanolamine - hydroxyl-containing tertiary monoamine, which is the product of oksietilirovannye dimethylamine. Is a transparent oily flammable liquid with a flash point -38oC. Produced according to TU 6-02-1086-91. Has M m mass 89,138. Dimethylaminomethylphenol - tertiary amine, obtained by condensation of phenol with formaldehyde and dimethylamine. Is a mixture of phenolic bases of manniche (2,4,6-tri-N,N-dimethylaminomethylphenol), viscous oily liquid from yellow to dark brown color with a average M m=173 - 185. Silicone foam controller is a low-molecular polysiloxane containing aliphatic and aromatic substituents (Product 133 - 176). Produced according to TU 6-02- -1233-82. As the isocyanate component (component B) used modified urethane groups of the polyisocyanate mixtures based diphenylmethanediisocyanate and uredastersad prepolymer based defen-009-00203476-93), Suprasec 2028, 2027 (the product of the company ICI, Italy), Elastoflex 5171, 5160/1(product of BASF, Germany). So, the component B Kama and Elastoflex 5171 represent uredastersad prepolymer based on toluylene diisocyanate and diphenylmethanediisocyanate containing free toluylenediisocyanate, with a content of isocyanate groups of 28 to 31% in the first and 33% in the second. Suprasec 2028, 2027 and Elastoflex 5160/1 is a composition based diphenylmethanediisocyanate with the content of some of the isocyanate with high functionality. Containing NCO-groups is in the first component 25%, in the second of 28.2%. The process of obtaining flexible polyurethane cold molded on an industrial scale is carried out using machines low or high pressure and unheated forms, the temperature of which is in the process of filling reaches 28 - 35oC due to self-heating of the reaction mixture. Required when filling polyol as one and isocyanate components, taken in the ratio of 1.7 - 2) : 1, mix thoroughly with power agitator or metered and mixed together using special industrial installation, after which the mixture is poured into a form, where the foaming and curing. Ready the foam. In table. 1 presents data on the composition of the used components and their relationships in the process of obtaining and properties of the obtained products. The conditions 1 example of the method correspond to the prototype, and examples 2 to 5 of the invention. Preparation of the activating mixture are as follows: pre-prepare the system catalysts serial dilution in water at room temperature triethanolamine, dimethylethanolamine, dimethylaminomethylphenol and triethylamine. An aqueous solution of amine catalyst was added with stirring to the previously dissolved in the polyester silicon-based foam controller. The mixture is again stirred. In laboratory conditions to obtain a flexible polyurethane foam and the preparation of the activating mixture can be illustrated by the following primarliy. Example 1. Prepare the system catalysts serial by dissolving 2.7 wt.h. water 0,05 wt.h. of triethylamine, 0.26 wt.h. dimethylethylamine, 1.6 wt. hours of dimethylaminomethylphenol and 0.21 wt.h. triethanolamine (activator II). An aqueous solution of amine catalyst was added with stirring to the previously dissolved in 10 wt.h. Laprol 5003-2B-10 0.2 wt.h. Kramnik-2B-10 and add the promoters I and II. The resulting mixture was stirred with an electric stirrer with a speed of 3000 rpm for at least 30 C. To the obtained in the form of activating a mixture of polyol as one component type is 61.3 wt.h. isocyanate component Suprasec 2028. Polyol as one and isocyanate components in the ratio of 1.7 : 1 mix 7 - 8 and pour out in the form of size 150x150x150 mm, where the foaming system. After 5 min the resulting sample is taken out, wrung out repeatedly manually. Along the vertical section of the sample assessing the quality of the foam structure. The technological characteristics of the foam obtained by the method of free expansion, are given in table. 2. During foaming assess system activity of the catalysts according to the start time, the time of gelation and the time of rise of the foam. These characteristics of the foam are determined in accordance with THE 6-55-32-89 (polyurethane System. Method of conducting a technology preview) and are defined: start time - the time from the introduction of the isocyanate component to the beginning of the foaming polymer mass; the rise time of the foam - time since the introduction of the isocyanate component to the end of increasing the volume of the foam. Example 2. Prepare the system catalysts sequence is of kilfenora and 0.3 wt.h. triethanolamine (activator II). Separately prepare a mixture of 0.3 wt.h. silicone foam controller product P 133-176 20 wt.h. Laprol 5003-2B-10 (activator I). In a plastic Cup placed 80 wt.h. Laprol 5003-2B-10 and add the promoters I and II. The resulting mixture was stirred with an electric stirrer with a speed of 3000 rpm for at least 30 C. To the obtained in the form of activating a mixture of polyol as one component add 60,4 wt.h. isocyanate component Suprasec 2028. Polyol as one and isocyanate components in the ratio of 1.8 : 1 mix 7 - 8 and pour in a box of size 150x150x150 mm, where the foaming. On the expiry of 5 minutes and the resulting sample is taken out, wrung out repeatedly manually. Along the vertical section of the sample rate the quality of the foam structure. The technological characteristics of the foam obtained by the method of free expansion, also shown in table. 2. Example 3. Prepare the activating mixture of underground component, sequentially dissolving 4.4 wt.h. water of 0.32 wt.h. of triethylamine, 0.53 wt.h. dimethylethanolamine, 3.2 wt.h. dimethylaminomethylphenol and 0.53 wt.h. triethanolamine (activator II). An aqueous solution of amine catalyst was added with stirring to the previously dissolved in a 20 wt.h. L the Mac.h. Laprol 5003-2B-10 and add the promoters I and II. The resulting mixture was stirred with an electric stirrer with a speed of 3000 rpm for at least 30 C. To the obtained in the form of activating a mixture of polyol as one component add 54,7 wt. including isocyanate component Suprasec 2028. Polyol as one and isocyanate components in the ratio 2 : 1 mix with 7-8 and pour in a box of size 150x150x150 mm, where the foaming. The sample obtained after 5 min repeatedly pressed manually. Vertical slice of the sample is estimated structure of the foam. The technological characteristics of the foam, measured in the foaming process, also shown in table. 2, in which example a mixture of 1 corresponds to the prototype, examples 2 to 5 of the invention. As can be seen from the data table. 2, the gelation time foam while maintaining the starting characteristics have higher values compared to the prototype object. For evaluation of the physico-mechanical properties of the finished products you used the following normative documents: GOST 409-77 (volumetric weight of the foam), GOST 18266-72 (relative residual deformation), GOST 15873-70 (elongation at break). 1. Method of producing elastic polyurethane foam cold molded by vzaimodeistvie and an aqueous solution of nitrogen-containing catalyst and the isocyanate component in the form of modified urethane groups of the polyisocyanate mixtures, characterized in that as the nitrogen-containing catalyst are catalysts of triethanolamine, triethylamine, dimethylethanolamine and dimethylaminomethylphenol taken in the ratio of 0,2 0,5 0,05 0,30 0,25 - 0,50 1,60 3,20 respectively and a total of 2.1 to 4.5 wt.h. on 100 wt.h. polyetherdiol, and the interaction is carried out at a ratio of polyol as one and isocyanate components, equal to 1.7 2 1, and the ratio of foam 128. 2. Activating the mixture to obtain a flexible polyurethane foam cold molded, containing simple polyetherdiol, an aqueous solution of nitrogen-containing catalysts and silicone foam controller, characterized in that as a simple polyetherdiol it contains polyester (mol.m. 5000, a functionality of 3.0 and a hydroxyl number of 32 to 36 mg KOH/g, and as the nitrogen-containing catalyst system of the catalysts of triethanolamine, triethylamine, dimethylethanolamine and dimethylaminomethylphenol in the following ratio of components in the mixture, wt.h. Simple polyester 100 Triethanolamine 0,21 0,53 The triethylamine 0,05 0,32 Dimethylethanolamine 0,26 0,53 Dimethylaminomethylphenol 1,60 3,20 Water 2,70 4,40 Silicone foam controller 0,20 0,37 n
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