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1. (WO2005111149) FREE FILMS MADE OF CURED ORGANOPOLYSILOXANE RESINS, PROCESS FOR PRODUCTION THEREOF, AND LAMINATED FILMS

Pub. No.:    WO/2005/111149    International Application No.:    PCT/JP2005/009221
Publication Date: Nov 24, 2005 International Filing Date: May 13, 2005
IPC: C08L 83/04
C08G 77/48
C08J 5/18
Applicants: DOW CORNING TORAY CO., LTD.
東レ・ダウコーニング株式会社
DOW CORNING CORPORATION
ダウ コーニング コーポレーション
ITO, Maki
伊藤 真樹
SUDO, Michitaka
須藤 通孝
KUSHIBIKI, Nobuo
櫛引 信男
EGUCHI, Katsuya
江口 勝哉
Inventors: ITO, Maki
伊藤 真樹
SUDO, Michitaka
須藤 通孝
KUSHIBIKI, Nobuo
櫛引 信男
EGUCHI, Katsuya
江口 勝哉
Title: FREE FILMS MADE OF CURED ORGANOPOLYSILOXANE RESINS, PROCESS FOR PRODUCTION THEREOF, AND LAMINATED FILMS
Abstract:
Free films made of cured organopolysiloxane resins obtained by crosslinking (A) an organopolysiloxane resin represented by the average siloxane unit formula: [R1aR2 3- a SiO1/2] v [R3SiO3/2] w (1) or [R1 aR2 3- a SiO1/2] x [R3SiO3/2] y [SiO4/2] z (2) (wherein R1 is C1-4 alkyl or a C6-8 monovalent aromatic hydrocarbon group; R2 is C2-6 alkenyl; R3 is C1-4 alkyl or a C6-8 monovalent aromatic hydrocarbon group with at least 50 mole % of R3 being phenyl; a is 0, 1 or 2; v + w = 1 and 0.8 < w < 1.0; and x + y + z = 1, 0 < x < 0.4, 0.5 < y < 1, and 0 < z < 0.4) with (B) an organosilicon compound which has two or more silicon-bonded hydrogen atoms and in which at least 5 mole % of all the silicon-bonded groups are aromatic hydrocarbon groups in the presence of (C) a hydrosilylation catalyst; a process for the production of the free films which comprises the step of applying a mixture of the components (A), (B) and (C) onto a substrate, the step of curing the coating, and the step of peeling the cured film from the substrate; and laminated films composed of the above films and inorganic layers formed thereon.