Patent ID: 6372108
Filing Date: 2002-04-16
Classification: C08G,C09D

Abstract:
An electrodeposition coating composition comprising an aqueous binder composition comprising an aqueous medium and at least one polymeric cathodic electrodeposition binder of an amino epoxy polymer having a number average molecular mass of 1,000 to 3,000, an amine value of 150 to 250 mg KOH/g binder and 50 to 230 milliequivalents/100 g binder of beta-hydroxyalkyl urethane groups of the formula HOCnH2nOC(O)Nâ€” where n=2 to 3, wherein said at least one binder has been neutralized with an acid and provides the composition with increased throwing power and wherein the at least one polymeric binder is present in an amount of 3 to 10 wt-%, based on the weight of the total resin solids of the composition.