Patent ID: 8536274

Claim:
A clear paint composition, comprising: (A) an acrylic copolymer comprising from 35 to 50 wt % ε-caprolactone structural units, based on the resin solid fraction, a hydroxyl group number of from 200 to 340 mg KOH/g and a weight average molecular weight of from 5,000 to 15,000, and (B) a non-yellowing type polyisocyanate compound, wherein the isocyanate group of the (B) component is included in a proportion of from 0.5 to 2 equivalents per 1 equivalent of hydroxyl group of the (A) component, and wherein the paint composition is hardened solely by baking, not hardening by ultraviolet radiation, such that the Young's modulus of the hardened paint film obtained from said paint composition is not more than 1.5 GPa, the molecular weight of intercrosslinking of the cured coating film (Mc) is not more than 350 g/mol, and the glass transition temperature (Tg) of the hardened paint film is at least 65° C.