Curable urethane resin composition comprising a mixture of polyi

Details Curable urethane resin composition comprising a mixture of polyi Curable urethane resin composition comprising a mixture of polyi

1974-10-30

1976-08-03

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

252182, 260 312N, 260 328N, 260 338UB, 260 336UB, 260 47CB, 260 775R, 260 775AB, 260 775AA, 260 775A, 260 775AP, 260 775AM, C08G 1800

Patent

active

039728463

ABSTRACT:
The present invention provides for a curable polyurethane composition comprising a keto compound and a liquid mixture of an organic aliphatic polyfunctional polyisocyanate and a compound having active hydrogen, the keto compound having the general formula: ##EQU1## wherein R.sub.1 and R.sub.2 are each an alkyl group, an aromatic group, and a heterocyclic group, which may be the same or different, and R.sub.2 is a lower alkylene or alkenyl group having 1 to 2 carbon atoms. The curable polyurethane composition is characterized by exhibiting a long pot life due to the existence of the aforementioned keto compound therein.

REFERENCES:
patent: 3314834 (1967-04-01), Walden et al.
patent: 3538027 (1970-11-01), Stein et al.

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