Patent ID: 8211545
Filing Date: 2012-07-03
Classification: C08K,C09D,Y10T

Abstract:
1. A heat-dissipating member comprising a substrate which has been surface treated with a modified silicone having a fluorinated substituent radical selected from the group consisting of perfluoroalkyl radicals and perfluoropolyether radicals on the main chain, and a heat conductive cured product prepared by curing a composition comprising: (a) 100 parts by weight of an organopolysiloxane having alkenyl radicals, (b) 200 to 2,000 parts by weight of a heat conductive filler, (c) an organohydrogenpolysiloxane in an amount to give a molar ratio of silicon-bonded hydrogen atoms in component (c) to alkenyl radicals in component (a) between 0.5/1 and 5.0/1, (d) 0.1 to 1,000 ppm of platinum group element based on component (a) of a platinum group metal compound, (e) an amount of a reaction regulator, and (f) 50 to 300 parts by weight of a silicone resin comprising R said heat conductive cured product being laminated on said substrate so that the member is releasable from the substrate, and said heat conductive cured product released from the substrate being interposed between a heat-generating component and a heat-dissipating member, and wherein another film which has been treated to be releasable is attached to the other surface of the heat conductive cured product remote from the substrate as a separator film.