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US 4,427,802 AGranted
Heterocyclic multifunctional amine adducts and curable compositions containing the same
AssigneeHexcel Corporation
InventorsRichard J. Moulton, John D. Neuner
Life of this patent
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Abstract
A curable composition, and composites comprising (A) an epoxy resin and (B) a heterocyclic compound prepared by reacting at least one aromatic or aliphatic polyamine compound having at least two amine groups, which are separated by no more than one carbon atom, with at least one carbonyl-containing compound selected from the group consisting of aldehydes and ketones.
Claims26
A curable composition comprising:
- (A) an epoxy resin;
- and
- (B) a heterocyclic compound having the formula:
- ##STR70## wherein R.sub.5 and R.sub.6 are each independently selected from the group consisting of hydrogen, alkyl, phenyl, ##STR71## and R.sub.5 and R.sub.6 may jointly form ##STR72## and R.sub.7 is selected from the group consisting of ##STR73##
1 more element
Dependencies are inferred from the claim text.