Patent ID: 7956121

Claim:
A thermoconductive silicone elastomer that has a hardness of 5 to 70 measured by a spring-type hardness tester in accordance with the provisions of SRIS 0101-1968, a tensile strength of no less than 0.2 MPa in accordance with JIS K 6251, an elongation of no less than 300%, and is capable of peeling at interfaces from a heat-generating member and a heat-radiating member after being sandwiched in an adhered state between said members and held in this state for 48 hours at 120° C., said thermoconductive silicone elastomer comprising: 90 to 10 wt. % of a silicone elastomer being a cured body of a hydrosilation-curable organopolysiloxane composition consisting of (A) an alkylalkenylpolysiloxane having at least two alkenyl groups in one molecule, (B) an alkylhydrogenpolysiloxane having at least two hydrogen atoms in one molecule, and (C) a platinum metal type catalyst; (D) 0.2 to 5.0 wt. % of a finely powdered reinforcement silica; (E)10 to 90 wt. % of a thermoconductive inorganic powder; and (F) 0.1 to 10 wt. % of an alkylphenylpolysiloxane which is liquid at room temperature (100 wt. % total), where components (D), (E) and (F) are dispersed in said silicone elastomer.