Organopolysiloxane composition and its gel cured product
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsMasayuki Ikeno, Hironao Fujiki
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Abstract
An organopolysiloxane composition, comprising (A) an organopolysiloxane having alkenyl groups bonded to silicon atoms, (B) an organohydrogenpolysiloxane having two or more hydrogen atoms bonded to silicon atoms, and (C) an addition reaction catalyst, wherein the vinyl group containing organopolysiloxane (A) as a base polymer and the organohydrogenpolysiloxane (B) as a crosslinking agent each have at least two alkoxy group and/or at least one epoxy group in the molecule. By subjecting this composition to addition curing, a gel cured product excellent in adhesion particularly to metals is obtained.
Claims7
An organopolysiloxane composition, comprising
- (A) an organopolysiloxane having 0.1 to 2 alkenyl groups bonded to silicon atoms on average in the molecule,
- (B) an organohydrogenpolysiloxane having two or more hydrogen atoms bonded to silicon atoms in the molecule, and
- (C) an addition reaction catalyst, wherein each of said organopolysiloxane (A) and said organohydrogenpolysiloxane (B) has at least two alkoxy groups having 4 or less carbon atoms or at least one epoxy group in the molecule, and said organohydrogenpolysiloxane (B) is blended in such an amount that the number of the hydrogen atoms bonded to the silicon atoms of the organohydrdogen polysiloxane (B) is 0.5 to 2 per alkenyl group bonded to the silicon atoms of the organopolysiloxane (A).
Dependencies are inferred from the claim text.