COATING COMPOSITION AND METHOD FOR FORMING MULTILAYER COATING FILM

摘要

The present invention aims to provide a coating composition that is capable of forming a cured coating film with excellent scratch resistance, acid resistance, stain resistance, and finishing appearance. Specifically, a coating composition comprising (A) a polycarbonate diol-modified acrylic resin with a hydroxyl value of 80 to 200 mgKOH/g and a number average molecular weight of 1,000 to 6,000 and (B) a polyisocyanate compound; or a coating composition comprising (A') a hydroxyl group-containing reaction product with a hydroxyl value of 30 to 150 mgKOH/g and a number average molecular weight of 1,000 to 12,000, (B) a polyisocyanate compound and (C) a hydroxyl group-containing resin with a hydroxyl value of 80 to 200 mgKOH/g and a weight average molecular weight of 2,500 to 40,000.