Patent ID: 6147144
Filing Date: 2000-11-14
Classification: C08G,C09D

Abstract:
A cationic electrodeposition coating composition having a dispersed solution of a cationic electrodeposition resin dispersed into an aqueous medium, said cationic electrodeposition resin prepared by the reaction of:(a) about 40-60 percent by weight of a cationic electrodeposition synthetic resin which is obtained by an epoxy-amino addition reaction;(b) about 5-10 percent by weight of an acrylic cationic electrodeposition resin having an amino group;(c) about 1-3 percent bv weight of a fatty acid ester resin synthesized by an esterification reaction of styrene-allylalcohol copolymer and fatty acid; and(d) about 30-50- percent by weight of a blocked polvisocyanate crosslinking agent, wherein said dispersed solution of the cationic electrodeposition resin has an organic solvent content of less than about 2.0%;wherein said blocked polysocyanate crosslinking agent has the formula (I) or the formula (II) ##STR5##