Curing agent and a cationic electrodeposition coating composition

摘要

The electrodeposition coating composition contains a base resin and a curing agent. The curing agent contains blocked isocyanate compound A and blocked isocyanate compound B. The difference in the glass transition temperatures of said blocked isocyanate compound A and said blocked isocyanate compound B is at least 25 DEG C., and the glass transition temperature of said blocked isocyanate A is higher than the glass transition temperature of said blocked isocyanate B.