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US 4,397,998 AGranted
Curable epoxy compositions suitable for use in RIM processes
AssigneeShell Oil Company
InventorsHarold E. De La Mare, Thomas F. Brownscombe
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Abstract
The present invention provides a rapid curing epoxy composition, suitable for RIM processes, which exhibits unexpectedly high modulus and strength and stability which comprises (1) an epoxy resin, (2) a polyamine or polyamide, (3) a catalyst selected from the group consisting of alkali and alkaline earth metal salts of selected acids, and (4) a polyalkylene ether glycol.
Claims16
A rapid curing, storage stable, thermosetting composition, especially suitable for use in reaction injection molding processes comprising
- (1) an epoxy compound containing more than one vicinal epoxy group,
- (2) a curing amount of at least one amino compound containing at least three amino hydrogens,
- (3) a catalytic amount of lithium nitrate or calcium nitrate, and
- (4) from about 0.1 to about 3 parts of a polyalkylene ether glycol per 100 parts by weight of epoxy compound.
1 more element
Dependencies are inferred from the claim text.