Synergistic polyurethane co-catalysts which are a...

Details Synergistic polyurethane co-catalysts which are a... Synergistic polyurethane co-catalysts which are a...

C - Chemistry, Metallurgy

08

G

402/151, 402/163

C08G 18/24 (2006.01) C08G 18/14 (1980.01)

Patent

CA 1151340

Abstract of the Disclosure The reaction of an organic polyisocyanate with an organic compound containing at least 2 active hydrogen containing groups is catalyzed with a synergistic co-catalyst combination of at least one organo-mercuric catalyst and at least one zinc salt of an alkylcarboxylic acid having about 2 to about 22 carbon atoms wherein the organo-mercuric com- pound is selected from the group consisting of (1) the divalent mono-mercury salts of organic acids and (2) the ionizable mono-organo-mono-mercuric carboxylates or poly- carboxylates containing only one carbon to mercury bond which are inert to isocyanate-active hydrogen reactions. Useful solid (non-cellular) and foamed polyurethane products are obtained which are produced at a faster curing rate than with use of either co-catalyst alone.

322752

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