| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat conductive silicone rubber composition resulting in a silicone rubber molding having an excellent filtering property upon its production, a small compression permanent set, and excellent heat conductivity. SOLUTION: A producing method of the heat conductive silicone rubber composition comprising (A) 100 pts.wt. of an organopolysiloxane raw rubber represented by the average unit formula: RaSiO(4-a)/2 (wherein R is a monovalent hydrocarbon group which may be substituted with halogen, and a is a number of 1.8-2.3), (B) 10-500 pts.wt. of an alumina powder having an average particle diameter of 1-10 μm and a particle size of 0.5-20 μm in the powder of >=70 wt.%, and (C) a curing agent, comprises mixing the components (A) and (B), passing the mixture through a wire fabric in filtering equipment, removing foreign matter to produce a silicone rubber base compound, and then mixing the curing agent (C) with the compound. |
