| abstract |
PROBLEM TO BE SOLVED: To provide an organopolysiloxane composition having two curing mechanisms of photopolymerization and condensation curing, and having good adhesiveness, especially to an adherend immediately after irradiation with ultraviolet rays. Offer things. SOLUTION: (A) a diorganopolysiloxane having hydroxyl groups at both ends of a molecular chain, (B) a following general formula (2): (Wherein, R 4 is a hydrogen atom, a phenyl group or halogenated phenyl group, R 5 is a hydrogen atom or a methyl group, R 6 is a monovalent hydrocarbon group, X is a hydrolyzable group, Z 1 is -R 7 - , -R 7 O- or, -R 7 (CH 3 ) 2 SiO— (R 7 is a divalent hydrocarbon group), Z 2 is an oxygen atom or a divalent hydrocarbon group, m is 0, 1 or 2, and n is 0, 1 or 2. ), An organopolysiloxane composition comprising (C) a condensation curing catalyst, and (D) a photopolymerization initiator. |