Cellular elastomeric foams and method of manufacture

Details Cellular elastomeric foams and method of manufacture Cellular elastomeric foams and method of manufacture

C - Chemistry, Metallurgy

08

G

403/34

C08G 18/28 (2006.01) C08G 18/10 (2006.01) C08J 9/02 (2006.01)

Patent

CA 1143899

Abstract of the Disclosure The present invention relates to open- and/or closed-cell elastomeric foams and to a method of production thereof. In particular there is provided an open- and/or closed-cell elastomeric foam produced by foaming a polyurethane and/or polyurea-prepolymer capable of being cross-linked with a polyamine chain-lengthening agent in the presence of an expanding agent characterized in that the expanding agent contains at least proportionately, a gas-forming component that is capable of reacting with the polyamine chain- lengthening agent or the reaction product of the chain-lengthening agent with polyisocyanates. The foams are useful as resilient elements, sound-proofing etc.

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