| 摘要 |
PROBLEM TO BE SOLVED: To provide an ultraviolet curing-type organopolysiloxane composition having high hardness, having high adhesive strength, and suitable as an adhesive. SOLUTION: This ultraviolet curing-type organopolysiloxane composition contains (A) a cyclic or linear organopolysiloxane having a structure expressed by formula (1) (R<SP>1</SP>is acryloxypropyl or methacryloxypropyl; R<SP>2</SP>is a monovalent hydrocarbon group other than R<SP>1</SP>; and k and m are each 0 or a positive integer and satisfy: k/(k+m)=0.5 to 1), (B) a urethane acrylate compound expressed by formula (2) (R<SP>3</SP>is an n-valent organic group; R<SP>4</SP>is a monovalent organic group; R<SP>5</SP>is H, methyl or phenyl; and n is 1 to 4), and (C) a photoinitiator as essential components. COPYRIGHT: (C)2006,JPO&NCIPI
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