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US 4,540,750 AGranted
Diethyl toluene diamine hardener systems
AssigneeCiba-Geigy Corporation
InventorNancy M. Ham
Life of this patent
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Abstract
A resinous hardener system comprising the reaction product of diethyl toluene diamine and an epoxide having a functionality of at least two, the hardener being capable of incorporation into a variety of epoxy and urethane resins.
Claims19
A hardener for epoxy resins comprising the adduct obtained from the reaction of diethyl toluene diamine and a polyepoxide having a functionality of at least two, said diamine being present in excess relative to said polyepoxide.
Dependencies are inferred from the claim text.