| abstract |
(57) [Problem] To provide a cationic coating composition capable of forming a coating film having excellent corrosion resistance and rust prevention steel sheet (galvanized steel sheet) adhesion and electrodeposition coating property. SOLUTION: A polyol compound (B) and an amino group-containing compound (C) obtained by adding caprolactone to a compound having a plurality of active hydrogen groups to an epoxy resin (A) having an epoxy equivalent of 180 to 2,500. A cationic coating composition comprising, as a vehicle component, a polyol-modified amino group-containing epoxy resin obtained by reacting |