Abstract: Laminated parts are described that include a core, a fiber layer arranged on each side of the core and impregnated with a polyurethane resin, and an outer layer that at least partially coats at least one of the polyurethane impregnated fiber layers, in which the outer layer is the cured reaction product of a reaction mixture that includes: (1) a polyisocyanate, (2) a polyether polyol having a molecular weight of 800 Da to 25,000 Da and a functionality of 2 to 8, and (3) a fatty acid ester having isocyanate-reactive functionality. Methods of producing such laminated parts are also described.

Abstract: Laminated parts are described that include a core, a fiber layer arranged on each side of the core and impregnated with a polyurethane resin, and an outer layer that at least partially coats at least one of the polyurethane impregnated fiber layers, in which the outer layer is the cured reaction product of a reaction mixture that includes: (1) a polyisocyanate, (2) a polyether polyol having a molecular weight of 800 Da to 25,000 Da and a functionality of 2 to 8, and (3) a fatty acid ester having isocyanate-reactive functionality. Methods of producing such laminated parts are also described.

Abstract: Laminated parts are described that include a core, a fiber layer arranged on each side of the core and impregnated with a polyurethane resin, and an outer layer that at least partially coats at least one of the polyurethane impregnated fiber layers, in which the outer layer is the cured reaction product of a reaction mixture that includes: (1) a polyisocyanate, (2) a polyether polyol having a molecular weight of 800 Da to 25,000 Da and a functionality of 2 to 8, and (3) a fatty acid ester having isocyanate-reactive functionality. Methods of producing such laminated parts are also described.

Abstract: Disclosed are processes for producing molded polyurethane elastomers and products, such as filter end caps, that include such elastomers. The elastomers are the reaction product of a non-foaming reaction mixture comprising an isocyanate-reactive composition and an organic polyisocyanate prepolymer with an internal mold release agent.

Abstract: Laminated parts are described that include a core, a fiber layer arranged on each side of the core and impregnated with a polyurethane resin, and an outer layer that at least partially coats at least one of the polyurethane impregnated fiber layers, in which the outer layer is the cured reaction product of a reaction mixture that includes: (1) a polyisocyanate, (2) a polyether polyol having a molecular weight of 800 Da to 25,000 Da and a functionality of 2 to 8, and (3) a fatty acid ester having isocyanate-reactive functionality. Methods of producing such laminated parts are also described.

Abstract: Disclosed are processes for producing molded polyurethane elastomers and products, such as filter end caps, that include such elastomers. The elastomers are the reaction product of a non-foaming reaction mixture comprising an isocyanate-reactive composition and an organic polyisocyanate prepolymer with an internal mold release agent.

Abstract: Disclosed are processes for producing molded polyurethane elastomers and products, such as filter end caps, that include such elastomers. The elastomers are the reaction product of a non-foaming reaction mixture comprising an isocyanate-reactive composition and an organic polyisocyanate prepolymer with an internal mold release agent.

Abstract: Disclosed are processes for producing molded polyurethane elastomers and products, such as filter end caps, that include such elastomers. The elastomers are the reaction product of a non-foaming reaction mixture comprising an isocyanate-reactive composition and an organic polyisocyanate prepolymer with an internal mold release agent.

Abstract: The present invention relates to a sprayable elastomeric polyurethane foam made from the reaction product of at least one isocyanate, at least one isocyanate-reactive component and water, optionally in the presence of at least one of blowing agents, surfactants, cross-linking agents, extending agents, pigments, flame retardants, catalysts and fillers, wherein the sprayable elastomeric polyurethane foam has a free rise density of from about 5 lb/ft3 to about 25 lb/ft3, a reactive cream time of from about 10 seconds to about 120 seconds, and an elongation of from about 30% to about 300%.

Abstract: The present invention relates to a composite containing a first plastic layer, a second plastic layer and a sprayable elastomeric polyurethane foam made from the reaction product of at least one isocyanate, at least one polyol and water, optionally at least one of blowing agents, surfactants, cross-linking agents, extending agents, pigments, flame retardants, catalysts and fillers, wherein the sprayable elastomeric polyurethane foam is sprayed onto one surface of the first plastic layer and expands to contact and adhere to one surface of the second plastic layer which is oriented parallel to the one surface of the first plastic layer and wherein the sprayable elastomeric polyurethane foam has a free rise density of from about 5 lb/ft3 to about 25 lb/ft3, a reactive cream time of from about 10 seconds to about 120 seconds, an elongation of from about 30% to about 300%, a molded density of from about 25 lb/ft3 to about 65 lb/ft3 and a peel strength of greater than about 2.0 lb/in2.

Abstract: The invention is directed to a process for preparing a Class-A surface, fiber reinforced molded article. The process broadly requires the use of two separate fiber surfacing veils with a fiber reinforcement sandwiched therebetween. A polyurethane reaction system is injected into the mold. The system requires the presence of specified hindered amines.

Abstract: The present invention is directed to the production of molded polyurethane products having high flexural moduli (i.e. 1,000,000 psi or more) and high elongation wherein a reaction mixture is reacted in a closed mold. The reaction mixture comprises reacting a liquid, room temperature stable, isocyanate prepolymer with at least two hydroxy-functional polyethers having average hydroxyl functionalities of from 1.5 to 8 and number average molecular weights of from 350 to 1800, at least one hydroxyl functional organic material containing from 2 to 8 hydroxyl groups and having a number average molecular weight below 350 and at least two hydroxyl functional organic materials having average hydroxy functionalities of from 1.5 to 3 and having number average molecular weights of 4000 or more. The products are prepared from these processes using such specified isocyanate prepolymers and polyol blends.

Abstract: The present invention relates to a process for the preparation of a SRIM molded product wherein the mold cavity has minimum dimensions of 1000 mm.times.100 mm.times.3.5 mm. The reaction mixture contains an isocyanate component and an isocyanate reactive component at an isocyanate index of from about 90 to about 400. The reinforcing fiber mat is present in an amount of from 50 to 65% by weight, based on the combined weight of the reaction mixture and the reinforcing fiber mat. In particular, the isocyanate component is 1) a polymethylene poly(phenyl isocyanate) having an isocyanate group content of from 25 to 40% by weight, and a diisocyanate content of 45-55% by weight; and 2) the isocyanate-reactive component comprises a) from about 1 to 15% by weight, based on the total weight of the isocyanate reactive component, of a fatty acid, b) from about 0.5 to 10% by weight, based on the total weight of the isocyanate-reactive component, of a zinc-carboxylate, and c) a polyol component.

Abstract: The present invention is directed to an improved internal mold release system for the production of high density molded SRIM parts, i.e. molded parts having a density of from 1.3 to 2.0 g/cc. In particular, the process includes reacting a reaction mixture including an organic polyisocyanate and at least one organic compound containing isocyanate-reactive hydrogens in the presence of a catalyst and an internal mold release agent in a closed mold. The internal mold release agent includes:a) mixed esters including the reaction product of i) aliphatic dicarboxylic acids, ii) aliphatic polyols, and iii) monocarboxylic acids with 12 to 30 carbon atoms in the molecule.The reaction mixture may additionally include a fatty acid such as, for example, oleic acid.

Abstract: The present invention is directed to an improved internal mold release system for the production of low density molded foam parts. The process comprises reacting a reaction mixture of an isocyanate and at least one organic compound containing isocyanate-reactive hydrogens in the presence of a blowing agent, a catalyst, a surfactant, an IMR, and, optionally, a reinforcing agent, in a closed mold. The IMR comprises:a) mixed esters comprising the reaction product of i) aliphatic dicarboxylic acids, ii) aliphatic polyols, and iii) monocarboxylic acids with 12 to 30 carbon atoms in the molecule. The IMR may additionally comprise b) and/or c) wherein:b) represents a compound comprising the reaction product of i) N,N-dimethylpropylene diamine with ii) a compound selected from the group consisting of tall oil, C.sub.8-20 monofunctional carboxylic acids, and mixtures of C.sub.