Curable compositions containing novel urethane curing agents

Details Curable compositions containing novel urethane curing agents Curable compositions containing novel urethane curing agents

1983-02-10

1984-06-05

Welsh, Maurice J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524507, 524543, 524557, 524577, 524591, 525124, 5253288, 528 45, C08G 1880

Patent

active

044529309

ABSTRACT:
There is herein provided a curable composition comprising an active hydrogen-containing material and a curing agent having a urethane-containing moiety of the structure: ##STR1## wherein R is hydrogen, an alkyl, alkenyl or aryl group, wherein X is hydrogen, an alkyl, alkenyl or aryl group, or wherein X is a moiety of the structure: ##STR2## of which R.sub.1 and R.sub.2 are, each independently, hydrogen, an alkyl, alkenyl or aryl group, or members of a cyclic or heterocyclic group. The curing agent may be present as a separate component or an integral component with the active hydrogen-containing material.

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