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US 4,731,428 AGranted
Epoxidized isocyanates and process for their preparation
AssigneeAmerican Cyanamid Company
InventorPaul S. Waterman
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Abstract
A process is disclosed for preparation of novel epoxy-substituted aralkyl isocyanates by reaction of tertiary aralkyl olefins and an epoxidizing agent at a temperature of from -35.degree. C. to about 50.degree. C. The compounds are useful as intermediates to produce curing agents for polyfunctional active hydrogen-containing compounds, e.g., by reaction with polyols to produce epoxy-pendant urethanes and then with polyamines, and the like.
Claims2
A curable composition comprising:
- (a) a compound having at least two active hydrogen-containing functional groups;
- and
- (b) an effective amount of an epoxy-pendant polyurethane curing agent for (a) which comprises a reaction product of:
- (i) a polyol;
- and
- (ii) an epoxidized isocyanate selected from those of the formulae:
- ##STR7## or a mixture of (I) and (II).
4 more elements
Dependencies are inferred from the claim text.