| 摘要 |
PROBLEM TO BE SOLVED: To provide an addition reaction-curable type silicone composition giving a cured material having low hardness and hardly causing oil bleed even on highly filling a heat conductive filler. SOLUTION: This addition reaction-curable type silicone composition is provided by containing (A) (A1) a linear polyorganosiloxane having≥2 alkenyl groups bonded with silicon atom in one molecule and (A2) a branched silicone resin without having an aliphatic unsaturated bond, (B) a polyorganohydrogen siloxane expressed by general formula: R<SP>2</SP>Si(OSiR<SP>3</SP><SB>2</SB>H)<SB>3</SB>[wherein, R<SP>2</SP>is a 1-4C alkyl or phenyl; and R<SP>3</SP>is a 1-4C alkyl] and (C) a platinum-based catalyst, and showing 20-150 penetration of the gel state cured material (ASTM D 1403, 1/4 corn). COPYRIGHT: (C)2007,JPO&INPIT
|
