CATIONIC ELECTRODEPOSITION COATING COMPOSITION

摘要

A cationic electrodeposition coating composition characterized byacomprising a resin (A) prepared by introducing cationic groups into an epoxy resin prepared by reacting an acrylic polymer having epoxy or carboxyl groups, a bisphenol compound, and a bisphenol diglycidyl ether epoxy resin, an acrylic resin (B) having hydroxyl and amino groups, and an isocyanate cross-linking agent (C), and being prepared by conducting urethanization among the three components to effect curing through cross-linking. The composition is excellent in curability, the corrosion resistance of cured coating, and other properties.