Invention Grant
- Patent Title: Laminate of an acrylic resin composition layer containing triazine based ultra-violet compounds and an organosiloxane resin composition layer
- Patent Title (中): 含有三嗪系紫外线化合物的丙烯酸树脂组合物层和有机硅氧烷树脂组合物层
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Application No.: US13762721Application Date: 2013-02-08
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Publication No.: US08765891B2Publication Date: 2014-07-01
- Inventor: Toshio Kita , Shunsuke Kajiwara , Ryou Niimi , Takehiro Suga , Tatsuya Ekinaka , Nobuaki Takaoka
- Applicant: Teijin Chemicals, Ltd.
- Applicant Address: JP Tokyo
- Assignee: Teijin Chemicals, Ltd.
- Current Assignee: Teijin Chemicals, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2006-065533 20060310; JP2006-065534 20060310; JP2006-065535 20060310; JP2006-156144 20060605
- Main IPC: C08F26/06
- IPC: C08F26/06 ; C08F226/06

Abstract:
It is an object of the present invention to provide a laminate having excellent weatherability and abrasion resistance as well as adhesion.The present invention relates to a laminate comprising a base, a first layer formed by thermally curing an acrylic resin composition and a second layer formed by thermally curing an organosiloxane resin composition, all of which are formed in the mentioned order, wherein the acrylic resin composition comprises: (A) an acrylic copolymer which contains at least 70 mol % of a recurring unit represented by the following formula (A): wherein X is a hydrogen atom or methyl group, and Y is a methyl group, ethyl group, cycloalkyl group, hydroxyalkyl group having 2 to 5 carbon atoms or triazine-based ultraviolet absorber residue; (B) a blocked polyisocyanate compound; (C) a curing catalyst; and (D) a triazine-based ultraviolet absorber, and the organosiloxane resin composition comprises: (E) colloidal silica and (F) a hydrolysis condensate of an alkoxysilane.
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