| abstract |
PROBLEM TO BE SOLVED: To provide a thermosetting cationic coating composition capable of forming a cured coating film having excellent properties such as throwing power, suitability for electrodeposition coating on a rust-proof steel plate, and corrosion resistance. SOLUTION: This is obtained by reacting an epoxy resin having an epoxy equivalent of 180 to 2,500 with an alkylphenol; a polyol obtained by adding caprolactone to a compound containing a plurality of active hydrogen groups; and an amino group-containing compound. A cationic coating composition containing a modified amino group-containing epoxy resin and blocked crude MDI. [Selection diagram] None |