Patent ID: 6884660

Claim:
A thermoconducting silicone composition comprising the following components (A)-(F), whereof the viscosity at 25° C. before curing is 10-1000 Pa·s: Component (A): 100 weight parts of an organopolysiloxane having at least two alkenyl groups in the molecule, and a viscosity of 10-100,000 mm 2 /s a 25° C., Component (B): An organohydrogenpolysiloxane having at least two hydrogen atoms bonded directly to silicon atoms in the molecule, in an amount such that (total number of hydrogen atoms bonded directly to silicon atoms/total number of alkenyl group in Component (A) is 0.5-5.0, Component (C): A low melting metal powder having a melting point of 40-250° C., and an average particle size of 0.1-100 micrometers, Component (D): A highly thermoconducting filler having a melting point of more than 250° C., and an average particle size of 0.1-100 micrometers, the total amount of component (C) and Component (D) being 800-2,200 weight parts, and (C)/((C)+(D))=0.05-0.9, Component (E): A catalytic platinum selected from group comprising platinum and platinum compounds, 0.1-500 ppm relative to Component (A) calculated in terms of platinum atom, Component (F): 0.001-5 weight parts of a controlling agent which suppresses the catalytic activity of Component (E).