Patent ID: 9593275
Date: 2017-03-14
CPC Classifications: B05D,C08G,C08K,C08L,C09D,C09J,C09K

Claim:
1. A method for forming a thermally conductive thermal radical cure silicone composition, the method comprising: (a) forming a thermally conductive clustered functional polymer comprising the reaction product of a reaction of: (b) blending the thermally conductive clustered functional polymer with a radical initiator to form the thermally conductive thermal radical cure silicone composition, wherein forming the thermally conductive clustered functional polymer of (a) comprises: (c) forming a first mixture comprising a thermally conductive filler, a filler treating agent, and a polyorganosiloxane having an average, per molecule, of at least 2 aliphatically unsaturated organic groups; (d) heating the first mixture to a temperature from 50° C. to 300° C. to treat the thermally conductive filler with the filler treating agent in the presence of the polyorganosiloxane; (e) cooling the first mixture to a temperature below 30° C.; (f) introducing the following components to the first mixture to form a second mixture: (g) shearing the second mixture; and (h) heating the second mixture to a temperature ranging from 50° C. to 100° C. for a sufficient time such that substantially all of the Si—H groups of the second mixture have reacted.