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摘要

PROBLEM TO BE SOLVED: To produce a molded item excellent in resistances to weather, abrasion, and chemicals at a low cost without causing cracks by incorporating a specific polymer, a polysocyanate, and a specific ultraviolet absorber, as the effective ingredients, into the same. SOLUTION: The polymer (A) is one having a (meth)acryl equivalent of 100-300 g/eq, a hydroxyl value of 20-500, and a wt. average mol.wt. of 5,000-50,000, an example being an addition reaction product of a glycidyl (meth) acrylate polymer and an α, β-unsatd. monocarboxylic acid. An example of the polyisocyanate (B) is isophorone diisocyanate. The ultraviolet absorber (C) is a bisbenzotriazole-type one represented by the formula (wherein R1 and R2 are each H or 1-10C alkyl; n and n' are each 4-8; and m and m' are each 1-20). Ingredient C is added in an amt. of 2-40 pts.wt. based on 100 pts.wt. ingredient A. The ratio of the number of hydroxyl groups of ingredient A to the number of isocyanate groups of ingredient B is set at (1/0.01)-(1/1).