| 摘要 |
PROBLEM TO BE SOLVED: To obtain a water base covering composition that can form a coating film showing high adhesion to coating films formed with a variety of coating materials, for example, acrylic, silicone, fluorine and other coating materials, while the formed coaling film causes no bleed-out and has excellent weather resistance and low-staining properties. SOLUTION: The objective water base covering composition characteristically comprises (A) a copolymer that is obtained by polymerizing (a) an ethylenically unsaturated monomer represented by the general formula: CH2=CR1-COO-C (CH3)3, (b) an ethylenically unsaturated monomer bearing a piperidyl group, (c) an ethylenically unsaturated monomer bearing an ultraviolet absorption group and (d) an ethylenically unsaturated carboxylic monomer.
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