Coating composition

Abstract

Abstract PURPOSE:To provide the titled compsn. giving coating films excellent in surface hardness, weatherability, chemical resistance, etc., by incorporating a specific compd. with a compsn. contg. a colloidal silica-contg. organopolysiloxane. CONSTITUTION:100pts.wt. hydrolyzate of an epoxy group-contg. Si compd. of formula I (wherein R<1> is an epoxy group-contg. org. group; R<2> is H, a 1-6C hydrocarbon group; R<3> is a 1-5C hydrocarbon group, alkoxyalkyl, 1-4C acyl; a is 1-3; b is 0-2; a+b<=3), 56-550pts.wt. hydrolyzate of org. Si compd. of formula II (wherein R<4> is an org. group having a 1-6C hydrocarbon group, methacryloxy, etc.; R<5> is R<3>; C is 0-3) (ii), 4-334pts.wt. colloidal silica (iii), and a curing catalyst are incorporated to attain the total amt. of components (ii) and (iii) of 567pts.wt. of lower, yielding a compsn. contg. a colloidal silica- contg. organopolysiloxane. Then 0.5-100pts.wt. functional group-contg. acryl polymer, aliphatic and/or alicyclic epoxy compd., etc. is incorporated with 100pts.wt. said compsn.

Inventors

• 👤 Akira Fujioka
• 👤 藤岡　顕
• 👤 Kazuo Sakiyama
• 👤 崎山　和夫
• 👤 Fumitaka Nakayama
• 👤 文孝 中山
• 👤 Akio Takigawa
• 👤 滝川　章雄
• 👤 Motoaki Yoshida
• 👤 元昭 吉田
• 👤 Noboru Otani
• 👤 昇 大谷

Bibliographic Details