Curable organopolysiloxane composition
AssigneeDow Corning Toray Silicone Co., Ltd.
InventorsYuji Hamada, Hideki Kobayashi
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Abstract
There is disclosed a composition which can cure to provide a coating showing excellent release against tacky substances, particularly silicone pressure-sensitive adhesive, said composition comprising: (A) 100 parts by weight of an organopolysiloxane that contains at least one fluorinated organic group and at least two alkenyl groups in each molecule; (B) 0.3 to 40 parts by weight of an organohydrogenpolysiloxane that contains at least two silicon-bonded hydrogen atoms in each molecule; (C) 0.1 to 20 parts by weight of a fluorine-containing acrylic polymer; (D) a catalytic quantity of a hydrosilylation catalyst; and (E) a sufficient amount of an organic solvent to impart coatability to said composition.
Claims19
A curable organopolysiloxane composition comprising:
- (A) 100 parts by weight of an organopolysiloxane that contains at least one fluorinated organic group and at least two alkenyl groups in each molecule;
- (B) 0.3 to 40 parts by weight of an organohydrogenpolysiloxane that contains at least two silicon-bonded hydrogen atoms in each molecule;
- (C) 0.1 to 20 parts by weight of a fluorine-containing acrylic polymer;
- (D) a catalytic quantity of a hydrosilylation catalyst;
- and
- (E) a sufficient amount of an organic solvent to impart coatability to said composition.
A curable organopolysiloxane composition comprising:
- (A) 100 parts by weight of an organopolysiloxane that contains at least one fluorinated organic group and at least two alkenyl groups in each molecule;
- (B) 0.3 to 40 parts by weight of an organohydrogenpolysiloxane that contains at least two silicon-bonded hydrogen atoms in each molecule;
- (C) 0.1 to 20 parts by weight of a fluorine-containing acrylic polymer having a main chain structure represented by a formula selected from the group consisting of
- {--CH.sub.2 --CH(COOCH.sub.2 (CF.sub.2).sub.4 F)--}.sub.p,
- {--CH.sub.2 --CMe(COOCH.sub.2 (CF.sub.2).sub.4 H)--}.sub.p,
- {--CH.sub.2 --CMe(COOCH.sub.2 CH.sub.2 (CF.sub.2).sub.4 H)--}.sub.p,
- {--CH.sub.2 --CH(COOCH.sub.2 CH.sub.2 (CF.sub.2).sub.4 F)--}.sub.p,
- {--CH.sub.2 --CH(COOCH.sub.2 CH.sub.2 (CF.sub.2).sub.6 F)--}.sub.p,
- {--CH.sub.2 --CMe(COOCH.sub.2 (CF.sub.2).sub.8 H)--}.sub.p,
- {--CH.sub.2 --CMe(COOCH.sub.2 CH.sub.2 (CF.sub.2).sub.8 F)--}.sub.p and
- {--CH.sub.2 --CH(COOCH.sub.2 CH.sub.2 (CF.sub.2).sub.6 H)--}.sub.p,
- in which Me denotes a methyl radical and p is a positive number;
- (D) a catalytic quantity of a hydrosilylation catalyst;
- and
- (E) a sufficient amount of an organic solvent to impart coatability to said composition.
Dependencies are inferred from the claim text.