| 摘要 |
PROBLEM TO BE SOLVED: To provide a polymer UV-absorber to be added to a fluorine-containing coating material, capable of being compounded into any kind of transparent fluorine-containing coating material without deteriorating the characteristic weather-resistance, water and oil repellency and stain-proofness of fluorine-containing coating material and efficiently preventing the light degradation of the coated material and provide a coating composition containing the UV-absorber. SOLUTION: The polymer UV-absorber to be added to a fluorine-containing coating material is a copolymer having a weight average molecular weight of 10,000-300,000 and produced by copolymerizing (A) 10-50 pts. mass of at least one kind of UV-absorbing monomer selected from a benzophenone-based UV-absorbing monomer expressed by formula (1) and a benzotriazole-based UV-absorbing monomer expressed by formula (2), (B) 5-50 pts. mass of a fluorine-containing monomer expressed by formula (3) and (C) 5-70 pts. mass of a vinyl monomer copolymerizable with these monomers. COPYRIGHT: (C)2005,JPO&NCIPI
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