Patent ID: 6569921
Filing Date: 2003-05-27
Classification: C09D

Abstract:
An aqueous pigment paste for cathodically depositable electrocoating compounds comprising(1) an aqueous paste resin comprising (a) a tertiary amino nitrogen resin having a tertiary amino nitrogen content of 35-300 milliequivalents per 100 g solids paste resin and the resin being selected from the group consisting of amino (meth)acrylate resins, amino polyurethane resins, and amino epoxy resins and (b) at least one epoxy compound in sufficient amount to provide 15-80 milliequivalents of epoxy per 100 grams of the paste resin and wherein the paste resin being at least partially neutralized with an acid selected from the group consisting of carboxylic acids and sulfonic acids; and (2) dispersed constituents selected from the group consisting of pigments, fillers and mixtures thereof.