Electrodeposition of aqueous dispersions of copolymers of polyethylenically unsaturated epoxy-amine adducts
AssigneeDeSoto, Inc.
InventorsKazys Sekmakas, Raj Shah
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Abstract
Nongelled, amine functional polymers dispersible in water with the aid of a solubilizing acid are provided by copolymerizing (A) an ethylenically unsaturated hydroxy functional amine adduct free of epoxy groups and containing from about 1.4 to about 2.0 ethylenically unsaturated amine groups per molecule, formed from a polyepoxide having a 1,2-epoxy equivalency of from 1.4 to about 2.0 and at least a stoichiometric amount of an ethylenically unsaturated primary amine; and (B) copolymerizable monoethylenically unsaturated monomers, a portion of which is amine-functional. The water solutions are particularly useful to enable corrosion resistant coatings to be electrodeposited at the cathode.
Claims17
A nongelled, amine-functional polymer dispersible in water with the aid of a solubilizing acid, said polymer being a copolymer of:
- (A) an ethylenically unsaturated hydroxy functional amine adduct free of epoxy groups and containing from about 1.4 to about 2.0 ethylenically unsaturated amine groups per molecule, formed from a polyepoxide having a 1,2-epoxy equivalency of from about 1.4 to about 2.0 and at least a stoichiometric amount of an ethylenically unsaturated primary monoamine;
- and
- (B) copolymerizable monoethylenically unsaturated monomers, a portion of which is amine-functional.
Dependencies are inferred from the claim text.