| 摘要 |
PROBLEM TO BE SOLVED: To provide a plastic molding remarkably improved in durability and having excellent abrasion resistance and hot water resistance. SOLUTION: The transparent plastic molding has an acrylic resin layer laminated on at least one surface of a transparent plastic substrate as a first layer, and a thermosetting coating film layer of an organosiloxane resin composition laminated on the first layer. The acrylic resin layer is obtained by thermosetting a coating composition comprising (A) an acrylic resin copolymer containing not less than 50 mol% recurring units expressed by formula (1) (wherein R<SP>1</SP>is a 1-4C alkyl group) and formula (2) (wherein X is a hydrogen atom or a methyl group; R<SP>2</SP>is a 2-5C alkylene group), where mole ratio of formula (1) to formula (2) is 95:5 to 60:40, (B) a polyisocyanate compound and/or a polyisocyanate compound precursor with 5.0 to 60 wt.% isocyanate group content and 0.7 to 5 equivalent total isocyanate group per one equivalent hydroxy group in (A), and (C) an ultraviolet ray absorber in an amount of 10 to 50 pts.wt. to 100 pts.wt. of coating film resin. The organosiloxane resin composition comprises (D) colloidal silica and (E) a hydrolysis condensate of trialkoxysilane. COPYRIGHT: (C)2004,JPO
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