Process for the production of polyurethane foams

Details Process for the production of polyurethane foams Process for the production of polyurethane foams

C - Chemistry, Metallurgy

08

G

C08G 18/30 (2006.01) B32B 5/18 (2006.01) B32B 5/20 (2006.01) C08G 18/16 (2006.01) C08G 18/22 (2006.01) C08G 18/38 (2006.01)

Patent

CA 2119480

A PROCESS FOR THE PRODUCTION OF POLYURETHANE FOAMS ABSTRACT OF THE DISCLOSURE A process for the production of polyurethane foams, in particular for the production of composite articles by back-foaming a plastics film as covering layer by the reaction of a) one or more polyisocyanates with b) a polyol component which is free from salt groups in the presence of c) at least one blowing agent, d) alkali metal carboxylates and e) from 0.01 to 30% by weight, based upon the weight of component b), of one or more organic compounds which are different from components a) through d), which are free from tertiary amino groups, metal and phosphorus and which have a dipole moment above 2.0 Debye.

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