Patent ID: 7641811

Claim:
A thermal conducting filler mixture having a high thermal conductivity useful for making thermal conductive products comprising: a first thermal conductor material having a particle size range of about 5 to 20 microns in an amount of about 30 to 70 volume %; a second thermal conductor material having a particle size range of about 0.5 to 10 microns in an amount of about 5 to 35 volume %; and a third thermal conductor material having a particle size range of about 0.05 to 2 micron in an amount of about 10 to 50 volume %; wherein the first thermal conductor material, second thermal conductor material and third thermal conductor materials are present in the mixture in particle volume ratios of: first conductor material to second conductor material of about 1:2 to 10:1; first conductor material to third conductor material of about 1:4 to 6:1; and second conductor material to third conductor material of about 1:4 to 7:2.