Synergistic polyurethane co-catalysts which are a combination of

Details Synergistic polyurethane co-catalysts which are a combination of Synergistic polyurethane co-catalysts which are a combination of

1979-10-15

1981-03-17

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

528 55, C08G 1814

Patent

active

042568480

ABSTRACT:
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. 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.

REFERENCES:
patent: 2374136 (1945-04-01), Rothrock
patent: 3347804 (1967-10-01), Buckley
patent: 3419509 (1968-12-01), Willett
patent: 3583945 (1971-06-01), Robins
patent: 3642044 (1972-02-01), Fertig et al.
patent: 3927053 (1975-12-01), Gallagher et al.
Mohiuddin et al., Elastomerics, Apr., 1977, pp. 41-45.

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