Patent ID: 8492487

Claim:
A thermosetting fluoropolyether adhesive composition comprising (A) 100 parts by weight of a straight chain polyfluoro compound represented by the following general formula (1): CH 2 ═CH—(X) a —Rf 1 -(X′) a —CH═CH 2 (1) wherein X is —CH 2 —, —CH 2 O—, —CH 2 OCH 2 —, or —Y—NR 1 —CO— (wherein Y is —CH 2 — or an o-, m-, or p-dimethylsilylphenylene group represented by the structural formula (2): R 1 is hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group), X′ is —CH 2 —, —OCH 2 —, —CH 2 OCH 2 —, or —CO—NR 1 —Y 1 — (wherein Y′ is —CH 2 — or an o-, m-, or p-dimethylsilylphenylene group represented by the following structural formula (3): and R 1 is as defined above), a is independently 0 or 1, Rf 1 is a divalent perfluoropolyether group represented by the following general formula (4): wherein p and q are independently an integer of 1 to 150, and sum of p and q on average is 2 to 300, and r is an integer of 0 to 6, and t is 2 or 3), or the following general formula or (5): wherein u is an integer of 1 to 300, s is an integer of 1 to 80, and t is as defined above); (B) a fluorine-containing organohydrogenpolysiloxane containing at least two hydrogen atoms directly bonded to the silicon atom (SiH group) per molecule, and having no other functional group in the molecule, at an amount such that the SiH group is 0.5 to 3.0 mole per mole of the alkenyl group in the component (A); (C) a platinum group metal catalyst at an amount such that the platinum group metal atom is 0.1 to 500 ppm by weight of the component (A); (D) 0.1 to 20 parts by weight of a fluorine-containing organohydrogenpolysiloxane containing a fluorine-containing organic group, hydrogen atom directly bonded to the silicon atom (SiH group), epoxy group and/or tri(organoxy)silyl group bonded to the silicon atom via carbon atom or carbon and oxygen atoms, and an aryl group bonded to the silicon atom via the carbon atom in one molecule; (E) 0.01 to 5 parts by weight of an organic compound represented by the following general formula (6): wherein A is a divalent to tetravalent group selected from —CH═CH—, —CH 2 CH 2 —, and and b is valence of the group A, and (F) 0.01 to 5 parts by weight of an organosilicon compound having at least one epoxy group and at least one organoxy group directly bonded to the silicon atom in one molecule, and not containing hydrogen atom bonded to the silicon atom (SiH group) in the molecule, and (G) 0.01 to 10 parts by weight of an organosilicon compound having at least one hydrogen atom bonded to the silicon atom (SiH group) and at least one aryl group directly bonded to the silicon atom or bonded to the silicon atom via carbon atom or carbon and oxygen atoms in one molecule, and not containing epoxy group or a tri(organoxy)silyl group bonded to the silicon atom via carbon atom or carbon and oxygen atoms, or a fluorine-containing organic group.