| 摘要 |
PROBLEM TO BE SOLVED: To provide a water-based coating composition that can form the coating film showing high adhesion to coating film formed by a variety of coatings, for example, acrylic, silicone, fluorine and the like without occurrence of bleed-out on the coating film. SOLUTION: The objective water-based coating composition characteristically comprises (A) a copolymer that is obtained by copolymerizing (a) 5-80 mass % of an ethylenically unsaturated monomer represented by general formula (I):CH2=CR1-COO-C (CH3)3 (R1 is H or an alkyl group of 1 or 2 carbon atoms), (b) 0.1-10 mass % of an ultraviolet-absorbing group-bearing ethylenically unsaturated monomer and (c) 0.1-10 mass % of an ethylenically unsaturated carboxylic monomer.
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