Ppg Industries, Inc.

Patricia A Aikens

Steven R Zawacky

Jeffrey G Koren

Mark L Follet

Raphael O Kollah

Paul R Kerr

An anionic electrocoating composition is provided including an electrodepositable .beta.-hydroxyalkylamide curing agent and an electrodepositable polymer capable of crosslinking with the curing agent. This curing agent includes an organic radical that (a) contains from 8 to 60 carbon atoms; (b) is derived from a substituted or unsubstituted aliphatic, alicyclic or aromatic hydrocarbon radical; and (c) is bonded to n .beta.-hydroxyalkylamide groups, wherein n is an integer from 1 to 4, to form ##STR1## where R.sup.1 can be H or a substituted or unsubstituted aliphatic, alicyclic or aromatic group containing up to 6 carbon atoms;

Anionic electrocoating compositions containing hydroxyalkylamide curing

A pigment grind composition contains pigment, water dispersible acrylic polymer and a reactive diluent. The reactive diluent has a number average molecular weight of between about 200 and about 2500 and is selected from polyalkylene glycols, polyalkylene glycol ethers, glycol ether formals or mixtures of these. The pigment grind composition has a volatile organic content of less than two pounds per gallon.

Low volatile organic content pigment grind composition

A method of electrocoating an electroconductive substrate utilizes an aqueous electrocoating composition containing an electrodepositable water dispersible film forming polymer and a pigment grind composition. The pigment grind composition contains pigment, electrodepositable water dispersible acrylic polymer and a reactive diluent. The reactive diluent has a number average molecular weight of between about 200 and about 2500 and is selected from polyalkylene glycols, polyalkylene glycol ethers, glycol ether formals or mixtures of these. The pigment grind composition has a volatile organic content of less than two pounds per gallon. The method is particularly suitable for anodic electrodeposition.

Growing community of inventors

Rosemont, PA, United States of America

Patricia A Aikens