| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radiation-curable silicone composition, which can successfully satisfy both the dispersibility and hardenability of a pigment coloring a silicone hardened material. <P>SOLUTION: The radiation-curable silicone composition contains: (A) a cation-polymerizable organopolysiloxane containing an epoxy group represented by average composition formula (1): R<SP POS="POST">1</SP><SB POS="POST">m</SB>R<SP POS="POST">2</SP><SB POS="POST">n</SB>SiO<SB POS="POST">(4-m-n)/2</SB>(R<SP POS="POST">1</SP>is a monovalent hydrocarbon group, R<SP POS="POST">2</SP>is an organic group containing epoxy, m>0, n>0 and 0<m+n≤3); (B) a photoacid-generating agent component which has catalytic action to the radiation-curing reaction of the component (A); (C) an acryl-silicone-based graft copolymer obtained by radically copolymerizing a monomer raw material including an organopolysiloxane compound (E) having one radical-polymerizable group in one molecule and a radical-polymerizable monomer (F) selected from acrylates and methacrylates; (D) a pigment capable of coloring the silicone hardened material. According to this, the pigment dispersibility is enhanced, and the silicone hardened material can be colored. <P>COPYRIGHT: (C)2013,JPO&INPIT |
