| abstract |
PROBLEM TO BE SOLVED: Photo-curing that can reduce coating equipment by shortening coating film curing time and reduce CO 2 accompanying it, and is excellent in finish, curing, coating film hardness, adhesion, storage stability, etc. And an isocyanate-curable thermosetting coating composition and a method for forming a coating film. An acrylic resin containing a radically polymerizable unsaturated group, having a weight average molecular weight of 3,000 to 100,000, a hydroxyl value of 5 mgKOH / g or less, and a glass transition temperature of −40 ° C. to 100 ° C. (A), a coating composition comprising a radically polymerizable unsaturated monomer (B) having a molecular weight of 100 to 3,000, a polyisocyanate compound (C) and a photopolymerization initiator (D) as constituents; Coating film formation method using this. [Selection figure] None |