Catalyst system for polyurethane foams

Details Catalyst system for polyurethane foams Catalyst system for polyurethane foams

C - Chemistry, Metallurgy

08

G

252/114, 402/162

C08G 18/24 (2006.01) C08G 18/16 (2006.01) C08G 18/22 (2006.01)

Patent

CA 1134804

ABSTRACT OF THE DISCLOSURE The instant invention is directed to a novel catalyst system for the production of polyurethane resin, and the method of use of such catalyst system. The catalyst systems of the instant invention broadly com- prise (a) a tertiary amine, (b) a tin compound capable of catalyzing the reaction between an isocyanate group and an active hydrogen atom, and (c) a compound of the formula: (R-COO?2Me wherein Me represents calcium or barium, and R represents a hydrocarbon group. It has been found that the component (c) tends to catalyze side reactions which occur during foaming between isocyanate groups and the initial reaction products of isocyanates and active hydrogen containing compounds.

346213

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