ELECTRODEPOSITION COATING COMPOSITION

摘要

An electrodeposition coating composition comprising (a) a water-dispersible, electrically depositable binder resin and (b) water-insoluble, internally crosslinked polymer microparticles having a particle size from 0.01 to 2 microns, said polymer microparticles bearing on their surfaces physically adhered or covalently bound thereto an amphoionic group of the formula: wherein R represents an unsubstituted or substituted C1-C6 alkylene or phenylene, A is -COOH or -SO3H.