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US 4,383,058 AGranted
Epoxy-amine copolymer reaction product and aqueous coating compositions thereof
AssigneeMobil Oil Corporation
InventorMichael A. Tobias
Life of this patent
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Abstract
Non-gelled compositions containing amine groups and substantially free of oxirane groups are disclosed which are the reaction product of (a) addition copolymer containing primary or secondary amino groups; and (b) a polyepoxide. The resulting composition is self-emulsifiable in water and is useful for coatings, particularly for metal.
Claims6
A non-gelled composition comprising an adduct containing amino groups and substantially free of oxirane groups, which adduct is the reaction product of
- (a) an amine containing copolymer comprising a solution copolymer of alpha, beta-monoethylenically unsaturated monomers containing at least 10 weight percent of alpha, beta-monoethylenically unsaturated monomer containing primary or secondary amino groups based on the total weight of the monomers;
- and
- (b) an epoxy resin containing free oxirane groups which consists of a bisphenol A-epichlorohydrin epoxy having an epoxy equivalent weight of between 200 and 4000.
Dependencies are inferred from the claim text.