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IPC classes for russian patent Polyurethane composition (RU 2280048):
Matrix resin composition for fiber-reinforced plastic and a method for manufacturing fiber-reinforced plastic / 2276674
Invention relates to matrix resin composition for carbon fiber-reinforced plastic capable of acquiring desired shape. Composition contains bifunctional or trifunctional liquid diisocyanate, bifunctional polyol, and bifunctional chain elongator containing group with active hydrogen atom at molar ratio of functional groups of diisocyanate, polyol, and elongator (5.0-1.0):1.0:(4.0-0.2), respectively. Method of preparing carbon fiber-reinforced plastic is also claimed. Invention related to shape-memory composite materials and can be used in space engineering.
 Polyurethane composition for manufacturing articles / 2271374
Invention relates to polyurethane elastomers suited to manufacture polyurethane articles. Composition according to invention contains (i) 70.6-74.8% polyfurite urethane prepolymer prepared by reaction between 2.1 mile 2,4-tolylenediisocyanate and 1.0 mole poly(oxytetramethylene glycol) with molecular weight 1500 and (ii) liquid curing agent (to 100%), which is a mixture of 3,3'-dichloro-4,4'-diaminodiphenylmethane and poly(oxytetramethylene glycol) with molecular weight 1000 at their molar ratio 1:1. Thus obtained polyurethane elastomers show Shore hardness al a level of 93 relative units, breaking point (23°C) at a level of 38 MPa, elongation on fracture 712%, and abrasion resistance 27 mcm (according to Russian standard GOST 11529-86). Articles manufactured from these elastomers may find use for in-tube flaw inspection of oil and gas mains as well as oil storage tanks.
Composition for polymeric material with assigned modulus of elasticity / 2265628
Invention relates to a method for preparing colored monolith constructional materials based on polyisocyanurates. Invention describes a composition used in preparing polymeric material with assigned modulus of elasticity comprising 100 mas. p. p. of polypropylene glycol of molecular mass 2200 Da, 21.5-117.5 mas. p. p. of aromatic diisocyanate and 3.2-6.0 mas. p. p. of dye sudan blue G as a catalyst. Material prepared on the base of the claimed composition possesses the value of modulus of elasticity at the level 1505 MPa. This allow its using in shoe and tire industry.
 Polyurethane and polyurethane-containing composition for gluing and thickening / 2261875
Invention relates to thermoplastic plastics, in particular, to polyurethane and composition containing thereof used for gluing and thickening. Invention describes polyurethane prepared by interaction of: a) polyisocyanate or mixture of two or more polyisocyanates with b) polyol or mixture of two or more polyols comprising simple polyether with molecular mass 4000 Da, not less, polydispersity value 1.5, not above, or hydroxyl functionality from 1.8 to 2.0, or polydispersity value 1.5, not above, and hydroxyl functionality from 1.8 to 2.0, or by a mixture of two or more such simple polyethers in the presence of a component of the general formula (I) given in the appendix 1. After reaction termination polyurethane has at least one silane group able to react with water or its mixture with isocyanate group. Also, invention describes a composition used for thickening and gluing containing a plasticizing agent in mixture with indicated polyurethane and other polyurethane with molecular mass 8000 Da, not above, and at least by 3000 Da less as compared with this value for the first indicated polyurethane. Proposed compositions comprising the claimed polyurethane are useful as contact, single- or two-component glue, thickening mass with rupture elongation up to 287% and destroying charge up to 0.49 N/mm2 and used in sealing seams and surfaces.
Polyurethane-bitumen composition / 2258074
Claimed composition contains (mass %): bitumen/shale mastic 70-95; prepolymer mixture 5-30. Said prepolymer mixture is based on polyoxypropylenetriols and isocyanate component, wherein the first prepolymer is based on mixture of polyoxypropylenetriols with molecular mass of 300-6000 and toluylenediisocyanate in ratio of (80-85):(20-15), respectively, and the second one is based on mixture of polyoxypropylenetriols with molecular mass of 300-6000 and hexamethylenediisocyanate in ratio of (65-80):(50-20), respectively, and mass ration of the first and second prepolymers in mixture is (80-50):(50-20).
 Composition for production of polymeric structural materials based on polyisocyanurates / 2252947
The invention is pertaining to the field of chemical industry, in particular, to production of polymeric structural materials from thermosetting compositions based on polyisocyanurates. The offered composition for production of the polymeric structural materials contains 100 mass % of a low-molecular quick-tenacious polymer with the terminal hydroxyl groups, 22.5-400 mass % of aromatic diisocyanate, 0.08-20 mass % of dimethylbenzylamine, 0.8-20 mass % of epoxydiane resins, 55-30 mass % of acetone, 2.0-22.5 mass % of a high-porous polymeric filler. At that in the capacity of the indicated polymeric filler they use a flexible polyurethane foam or a synthetic felt material (sintepone - synthetic winterizer). From the indicated composition by an industrial method for a short cycle of hot pressing produce polymeric items with a gradient modulus of elasticity (in any given direction) from 3 up to 2000 MPa. At that the material saves its elastic properties at any value of the modulus in the interval of temperatures from -50 up to 120°C, and may be used in shoe industry and tire industry, instrument-making industry and radio industry.
Polyol composition for polyurethane production / 2252234
Claimed composition contains (pts mass): polyethertriol or mixture of polyethertriol with molecular weight of 4500-6500 and average hydroxyl functionality of 3 - 100; ethylene glycol - 3.5-6.2; 1-4-butandiol - 3,5-8,0; triethylene diamine - 0.53-0.65; water - 0.25-0.50; organosilicate foam regulator - 0.002-0.004; and high boiling by-product from isoprene production based on alkyl- and oxyalkyl-substituted dioxacyclanes (e.g., 1,3-dioxane containing 1-4 mass % of hydroxyl groups) as organic filler - 2-100. Said filler may be used in mixture with oil plasticizer. Polyurethane obtained according to present method has Shore A hardness of 20-50, and is useful in automobile industry, and as material for gasket and sealing.
 Polyurethane composition / 2248380
Claimed composition contains (mass parts): mixture of low molecular oligooxyethylene glycol and oligooxypropylenetriol 49.0-91.2; toluylenediisocyanate 8.0-40.5; dimethyl dichlorosilane 0.1-1.0; and low molecular polyethylene 2.5-11.5, wherein polyethylene is introduced when content of isocyanate group NCO- is achieved of predetermined value (2.0-10.5 mass %).
 Method for production of oligoester polyisocyanate / 2248379
Invention relates to method for production of oligoester polyisocyanate treated with toluylenediisocyanate. Method includes controlling of NCO-group content up to predetermined value followed by addition of low molecular polyethylene. Oligoester polyisocyanate of present invention is useful as component of polyurethane compositions for production of cold cured articles.
 Polyurethane composition / 2237070
The invention relates to the production of polyurethane elastomers intended for the manufacture of coatings shafts of high-speed paper machines, calender rollers for machines in the production of magnetic tapes, as well as for the manufacture of polyurethane products for various purposes for the aviation and automotive industry
 Polymer composition / 2220168
The invention relates to polymeric compositions based on vinyl chloride polymers and polyurethanes and/or poliuretanowy that can be used to obtain a film materials, artificial leather, adhesives, binders, coatings, structural materials, medical products
A method of obtaining a thermoplastic poliuretanowy in fine form / 2214424
The invention relates to the production of thermoplastic poliuretanowy in fine form, which can be used for the manufacture of coating film materials, artificial leather, adhesives, binders, adhesives, construction materials, as well as modifying additives to other polymers
 Polymer composition / 2045550
 Polymer composition with reduced flammability / 2039771
The invention relates to polymeric materials with improved resistance to combustion and thermal-oxidative aging and can be used in the manufacture of parts for television, radio and lighting equipment, electrical goods
Priming composition comprising aromatic polyurethane polyol, method for applying cover, method for car finishing / 2278138
Invention relates to aromatic polyurethane polyols used as components of priming compositions. Invention describes the priming composition comprising aromatic polyurethane polyol including product of reaction: (a) at least one diol component among number of α,β-diols, α,γ-diols and their mixtures; (b) at least one triisocyanate; (c) at least one diisocyanate wherein at least one isocyanate is aromatic one, and molecular mass or aromatic polyurethane polyol is 3000 Da, not above, and a cross-linking agent also. Prepared aromatic polyurethane polyol shows viscosity value by Brookfield at the level 8260 centipoises, OH-number 192.6 KOH/g and the dispersity (Mn/Mw) at the level 3.0. Priming compositions prepared by using indicated aromatic polyurethane polyol are useful in finishing large means of transportation, for example, trains, trucks, buses and airplanes, in particular, in vehicle body works. Also, invention relates methods for applying priming compositions on support comprising applying indicated compositions, and to a method for finishing car in repairs comprising applying the indicated priming composition.
 Polyisocyanate crosslinking composition and its preparation / 2233851
The invention relates to the production of a mixture of polyfunctional isocyanates and use it as an isocyanate component and simultaneously cross-linking agent when receiving both hard and flexible foams
 Method of producing elastic polyurethane foam products / 2024555
The invention relates to polyurethane chemistry and relates to a method of producing elastic polyurethane foam product of more than 0.15 m3used in the furniture industry, vehicles, toys and t
Priming composition comprising aromatic polyurethane polyol, method for applying cover, method for car finishing / 2278138
Invention relates to aromatic polyurethane polyols used as components of priming compositions. Invention describes the priming composition comprising aromatic polyurethane polyol including product of reaction: (a) at least one diol component among number of α,β-diols, α,γ-diols and their mixtures; (b) at least one triisocyanate; (c) at least one diisocyanate wherein at least one isocyanate is aromatic one, and molecular mass or aromatic polyurethane polyol is 3000 Da, not above, and a cross-linking agent also. Prepared aromatic polyurethane polyol shows viscosity value by Brookfield at the level 8260 centipoises, OH-number 192.6 KOH/g and the dispersity (Mn/Mw) at the level 3.0. Priming compositions prepared by using indicated aromatic polyurethane polyol are useful in finishing large means of transportation, for example, trains, trucks, buses and airplanes, in particular, in vehicle body works. Also, invention relates methods for applying priming compositions on support comprising applying indicated compositions, and to a method for finishing car in repairs comprising applying the indicated priming composition.
Polyurethane composition / 2280048
Invention relates to compositions of molded polyurethane elastomers showing high physico-mechanical characteristics and providing high cyclic stability of products at alternate loadings within a wide operation temperature range. Invention may be used in rubber industry to manufacture cast tires and rolls for monorail vehicles. Composition according to invention contains polyoxytetramethylene glycol, mixture of 2,4-tolylenediisocyanate and 1,6-hexamethylenediisocyanate at molar ratio (0.8-0.9):0.1, and 3,3'-dichloro-4,4'-diaminodiphenylmethane in the form of solution in polyoxytetramethylene glycol at molar ratio (0.67-0.7):(0.29-0.30) as liquid hardener.
Polyurethane resin, obtained from poly hydroxilated resins, method of obtaining it and its application / 2331655
Invention pertains to polyurethane resin, which is a product of a reaction between at least one diisocyanate and components, containing functional groups, which have capacity to react with isocyanates, with the following composition: (a) first group, which is formed by one or more polyester-polyols based on ethers, each of which has average molecular mass ranging from 400 to 12000 g/mol, (b) second group, formed by one or more poly hydroxilated resins, chosen from a defined group of resins, (c) optional third group, formed by one or more polyols, each of which has average molecular mass, equal to or less than 800 g/mol, which are also chosen from a defined group of polyols, and (d) at least one amine and a reaction chain-stopping agent. The ratio of equivalent masses of diisocyanate and components, containing functional groups, with capacity to react with isocyanates, is chosen such that, naturally all isocyanate groups of diisocyanate are present as a product of the reaction with one of the above mentioned functional groups, with capacity to react with isocyanates. The invention also relates to the method of obtaining the above mentioned polyurethane resin, to polyurethane resin obtained through such methods, to coating for plastic substrates, containing the proposed resin, as a polyolefin binding substance, to use of such a polyurethane resin as a film forming substance in printing ink for printing on plastic substrates, as well as to the method of obtaining a laminate, which has a layer obtained when printing an image, including stages (a)-(d), with use of coating from polyurethane resin, and to a laminate, obtained using such a method.
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FIELD: polymer materials. SUBSTANCE: invention relates to compositions of molded polyurethane elastomers showing high physico-mechanical characteristics and providing high cyclic stability of products at alternate loadings within a wide operation temperature range. Invention may be used in rubber industry to manufacture cast tires and rolls for monorail vehicles. Composition according to invention contains polyoxytetramethylene glycol, mixture of 2,4-tolylenediisocyanate and 1,6-hexamethylenediisocyanate at molar ratio (0.8-0.9):0.1, and 3,3'-dichloro-4,4'-diaminodiphenylmethane in the form of solution in polyoxytetramethylene glycol at molar ratio (0.67-0.7):(0.29-0.30) as liquid hardener. EFFECT: enabled use of polyurethane composition for molded elastomers. 2 cl, 2 tbl, 11 ex
The invention relates to compositions of polyurethane elastomers with high physical-mechanical characteristics providing high cyclic stability of products with alternating loads over a wide temperature range of operation. The invention can be used in rubber industry, for manufacturing solid tyres, rollers for monorail transport, working in the operating temperature range ±45°C. Known polyurethane composition (patent RF №2130038, 1999), with high physical-mechanical characteristics and high cyclic stability of products based on it. The elastomer produced by interaction of polyethyleneglycoladipinate (polyester P-6) with 2,4-diisocyanate, butanediol, basic dye triarylmethane and utverjdayut 3,3'-dichloro-4,4'-diaminodiphenylmethane. However, the composition has a narrow temperature range and does not work at temperatures below minus 25°C. Known liquid hardener for polyurethane systems (RF patent No. 2043369, IPC C 08 G 18/32, 1995, bull. 25), for the manufacture of polyurethane elastomer products, operating in a cyclic mode of loading. Part hardener along with 3,3'-dichloro-4,4'-diaminodiphenyl is an is a mixture of polyethyleneglycoladipinate 800 MM and polyoxyethyleneglycol 1000 MM at a molar ratio of 1:1. Liquid hardener is used to obtain polyurethane elastomers based prepolymers of polyoxypropyleneglycol and polyoxyethyleneglycol with 2,4-diisocyanate. The composition has a hardness of shore a to 79%, a stress at 100% elongation to 4.7 MPa. The disadvantages of the composition include low ultimate tensile strength (up to 32 MPa) and low cyclic resistance to fracture (10500). Data about the operating temperature range are missing. Known polyurethane composition intended for the production of large elastic products (RF patent 2155781, IPC C 08 G 18/32, 2000). The composition comprises a mixture polimorfnogo urethane prepolymer SKU-PFL-100 with the urethane prepolymer F and hardens liquid hardener based on 3,3'-dichloro-4,4'-diaminodiphenylmethane and polyoxyethyleneglycol when a molar ratio of 0.67:0,33. The mixture of the SSI-PFL-100 and F prepared by mechanical mixing of two or prepolymers by reacting a mixture of polifonica with Laprolan-402 with 2,4-diisocyanate. Liquid hardener is prepared by dissolving Diamete-X in polypurine at a temperature of 85-90°C. The mixture of prepolymers with liquid hardener is carried out at a temperature of 25-40°and pour the mixture into a metal mold for curing at a temperature of (110±5)°C. Also known liquid hardener containing non-volatile solvent, parts by weight:
(patent RF №2122006, IPC C 08 G 18/32, 1998). As a non-volatile solvent additional area proposed to use ester polyols with a molecular mass of 2100-5000. The elastomers obtained with the use of the prepolymer 2,4-toluylenediisocyanate and polyoxyethyleneglycol at high strengths and relative movements have a high residual elongation and hardness that prevents their use for tyre wheel monorail transport. Data on cyclic resistance and the operating temperature range are missing. A method of obtaining compounds using a mixture of aromatic and aliphatic diisocyanates (Tauren and hexamethylenediisocyanate) in the ratio of 75-85/25-15 (A.S. USSR №430124, 1972). However, given the s compounds have low mechanical characteristics. Closest to the technical essence and purpose is polyurethane composition used for manufacturing solid tyres trams, monorail transport, operating in the temperature range ±45°comprising a mixture of polyoxyethyleneglycol, polyethyleneglycoladipinate, diethylene glycol, 2,4-toluylenediisocyanate, 3,3'-dichloro-4,4'-diaminodiphenylmethane [RF patent №2194059 C1 IPC 08 L 75/04, C 08 G 18/32, 2002]. The composition is obtained by mixing at a predetermined ratio of polyoxyethyleneglycol, polyethyleneglycoladipinate, diethylene glycol, 2,4-toluylene diisocyanate, followed by curing of the formed prepolymer melt 3,3'-dichloro-4,4'-diaminodiphenylmethane. The composition has high physical and mechanical characteristics at a temperature of +20°With: ultimate tensile strength not less than 42 MPa, relative deformation at break of at least 400%, the cyclic resistance with alternating loads 107. The disadvantages of the composition should include a lack of vitality (up to 30 min), high residual elongation (8%), high hardness values (92-95% shore a) and the stress at 100% elongation (>10 MPa). The latter calls for a high level of noise when passing cars monorail transport in the joints of the steel rail. Global experience exp is watachi rail transport shows what is an acceptable noise levels provide the tyre with a shore hardness A (75±3) units and the stress at 100% elongation in the range of 3.5-6 MPa. An object of the invention is the creation of a polyurethane composition for injection molding of elastomers, in particular for solid tyres wheels monorail and other modes of transport, which combines high strength and deformation characteristics (tensile strength at break of not less than 43 MPa, relative deformation at break of not less than 480%) stress at 100% elongation of 4-6 MPa, shore hardness And 73-78$, the cyclic resistance with alternating loads not less than 106work in the operating temperature range ±45°With high survivability. The problem is solved due to the fact that features polyurethane composition for injection molding of elastomers containing 2,4-toluylenediisocyanate mixed with 1,6-hexamethylenediisocyanate at a molar ratio of 0.8 to 0.9:0.1, respectively, and 3.31-dichloro-4,41-diaminodiphenylmethane - in the form of a solution in polyoxyethyleneglycol at a molar ratio of 0,067-0,07:0,029-0,03, respectively, as the liquid hardener in the following ratio of components, parts by weight:
specified liquid hardener:
Preferably the polyurethane composition contains these components in the following ratio, parts by weight:
specified liquid hardener:
Novelty and inventive step of the invention lies in the fact that as a result of its implementation is achieved by the technical task level of the physical-mechanical characteristics, cyclic resistance in the temperature range of operation ±45°that is not obvious, since the dilution of the aromatic aliphatic diisocyanate Oba is but leads to a significant reduction in strength properties. It is found experimentally that as the liquid curing agent for curing the prepolymer of polyoxyethyleneglycol and 2,4-toluylene diisocyanate and a curing crystalline 3,3'-dichloro-4,4'-diaminodiphenylmethane prepolymer of polyoxyethyleneglycol and a mixture of 2,4-toluylene-, 2,6-hexamethylenediisocyanate does not provide the required characteristics of the elastomer. The required characteristics are achieved only when the curing of the prepolymer of polyoxyethyleneglycol and a mixture of 2,4-toluylene-, 2,6-hexamethylenediisocyanate liquid hardener. While ensuring a high level of ultimate strength in tension (43 MPa) while reducing to the desired voltage level at 100% elongation (4-6 MPa) and a residual elongation of 6%, hardness (73-78$) implemented an experimental selection of components and manufacturing processes, compositions. The elastomer produced from the inventive polyurethane composition method, the essence of which is that in the reactor was placed polyoxyethyleneglycol, at a temperature of (60±5)°With injected under stirring prepared in advance in a predetermined molar ratio of the mixture of diisocyanates. The reaction mixture is maintained at a temperature (80±5)°under stirring and degassing 2-3 hours, cooled to 60° With injected under stirring a solution of 3,3'-dichloro-4,4'-diaminodiphenylmethane in polyoxyethyleneglycol, stirred under vacuum, poured into molds, put on the cure. The invention was used components that meet the following technical documentation:
Example 1 (the prototype). 98 parts by weight of polyoxyethyleneglycol MM 980 (HE 3,47%) are mixed at a temperature of (55±5)°and a residual pressure of not more than 20 mm Hg from 80.5 parts by weight of polyethyleneglycoladipinate MM 1880 (HE is 1.81%) and 1.7 parts by weight of (0,016 m) of diethylene glycol for 30 min and injected into the mixture of 52.5 parts by weight of 2,4-toluylene diisocyanate. The reaction mixture is intensively stirred at a temperature of (80±5)°and the relative pressure of not more than 20 mm Hg 2-4 hours until a constant content of NCO-groups, cooled to 60°and introducing the melt to 36.8 parts by weight of 3,3'-dichloro-4,4'-diaminodiphenylmethane. After averaging under stirring for 5 min the reaction to shift the ü poured into metal molds and utverjdayut at a temperature (110± 3)°With during the day. The persistence of a mixture of 30 minutes. Example 2. 100 parts by weight (0.1 mol) of polyoxyethyleneglycol MM (HE 3,40%) are mixed at a temperature of (60±5)°and a residual pressure of not more than 20 mm Hg with 31,3 parts by weight of (0.18 mol) of 2,4-toluylene diisocyanate and 3.4 parts by weight (0.02 mol) of 1,6-hexamethylenediisocyanate (if the molar ratio of 0.9:0.1 to). The reaction mixture was kept under vigorous stirring, the residual pressure of not more than 20 mm Hg and temperature (80±5)°With 2-4 hours until a constant content of NCO-groups, cooled to 60°and introducing liquid hardener composition of 18.7 parts by weight of (0.07 mol) of 3,3'-dichloro-4,4'-diaminodiphenylmethane, and 30.0 parts by weight of (0.03 mol) polyoxyethylene-Kohl. Liquid hardener is prepared by dissolving 3,3'-dichloro-4,4'-diaminodiphenylmethane in polyoxyethyleneglycol (molar ratio 0,068-0,029) under stirring for 2 hours at a temperature of 85-95°and a residual pressure of not more than 20 mm Hg After averaging with stirring under vacuum for 5-10 min, the reaction mixture is poured into molds. The persistence of a mixture of 60 minutes. Examples 3-11. Analogously to example 2 with the components shown in table 1 (examples 3-11). In all examples, the molar ratio of 3,3'-dichloro-4,4'-diaminodiphenylmethane and polyoxyethyleneglycol per 1 mol of polyoxyethyleneglycol corresponds to the value the of 0,067-0,07:0,029-0,03. The molar ratio of 2,4-toluylene diisocyanate and 1,6-hexamethylenediisocyanate is 0.8-0.9:0.1, respectively. Table 1 shows the formulation of polyurethane compositions, and table 2 - comparative physico-mechanical characteristics of the resultant elastomers. From table 1, 2 data, it follows that the required level of physical and mechanical characteristics of the elastomer is achieved when the ratios of examples 5-7 tables 1, 2. The deviation from the optimal quantities leads to a slight deterioration of certain characteristics (tables 1, 2 examples 2-4, 8-11). As a result of implementation of the invention can obtain a polyurethane elastomer having a high cyclic resistance with alternating loads 107in the operating temperature range ±45°combining high strength with a given level of hardness and the stress at 100% elongation, low residual deformation with high survivability during curing. The elastomer is at a temperature of ±20°With the following characteristics:
1. Polyurethane composition for injection molding of elastomers containing polyoxyethyleneglycol, 2,4-toluylenediisocyanate and 3, 3'-dichloro-4,4'-diaminodiphenylmethane, characterized in that it contains 2,4-toluylenediisocyanate mixed with 1,6-hexamethylenediisocyanate at a molar ratio of 0.8 to 0.9:0.1, respectively, and 3,3'-dichloro-4,4'-diaminodiphenylmethane - in the form of a solution in polyoxymethylen the licola at a molar ratio of 0,067-0,07:0,029-0,030 respectively as liquid hardener in the following ratio of components, parts by weight:
specified liquid hardener:
2. Polyurethane composition according to claim 1, characterized in that it contains these components in the following ratio, parts by weight:
specified liquid hardener:
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