Polyurethane foam and a resin composition

Details Polyurethane foam and a resin composition Polyurethane foam and a resin composition

C - Chemistry, Metallurgy

08

J

C08J 9/14 (2006.01) C08G 18/32 (2006.01) C08G 18/76 (2006.01) C08L 75/04 (2006.01) C09K 21/14 (2006.01)

Patent

CA 2610410

A polyurethane foam and a resin composition that may be used to form the polyurethane foam is provided. The resin composition comprises a first ethylene diamine-based polyol having about 100% ethylene oxide capping present in an amount of from 0.5 to 8 parts by weight based on 100 parts by weight of the resin composition, a second polyol, and a physical blowing agent. The polyurethane foam comprises the reaction product of an isocyanate component and the resin composition. A method of forming the polyurethane foam on a substrate, comprising the steps of combining the isocyanate component, the first ethylene diamine-based polyol having about 100% ethylene oxide capping, the second polyol, and the physical blowing agent to form a polyurethane composition is also provided. The polyurethane composition is applied onto the substrate at an ambient temperature of 0°C or lower to form the polyurethane foam.

Divulgation d'une mousse de polyuréthane et d'une composition de résine pouvant servir à former ladite mousse de polyuréthane. La composition de résine comprend un premier polyol à base d'éthane-1,2-diamine ayant environ 100 % de terminaisons oxyde d'éthylène présent en une quantité allant de 0,5 à 8 parties en masse pour 100 parties en masse de la composition de résine, un second polyol et un agent d'expansion. La mousse de polyuréthane est constituée le produit de la réaction entre un isocyanate et la composition de résine. On divulgue également une méthode de formation de la mousse de polyuréthane sur un substrat, comprenant les étapes de combinaison de l'isocyanate, du premier polyol à base d'éthane-1,2-diamine à terminaisons environ 100 % oxyde d'éthylène, du second polyol et de l'agent d'expansion. Le polyuréthane est appliqué sur un substrat à une température ambiante de 0 oC ou moins pour former la mousse de polyuréthane.

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