Patent ID: 7643298
Filing Date: 2010-01-05
Classification: C09K,C10M,C10N,H01L,Y10T

Abstract:
1. A method of making a thermally conductive grease comprising the steps of: providing a carrier oil, at least one polymeric dispersant, and thermally conductive particles in an amount comprising: between 0 to about 49.5 weight percent of the carrier oil; about 0.5 to about 5 weight percent of the at least one polymeric dispersant; and at least about 49.5 weight percent of the thermally conductive particles, wherein the thermally conductive particles comprise at least three distributions of thermally conductive particles, each of the at least three distributions of thermally conductive particles having an average (D mixing the carrier oil and polymeric dispersant together to form a mixture; and mixing the thermally conductive particles sequentially, finest to largest average particle size, into the carrier oil and polymeric dispersant mixture to obtain a thermally conductive grease having a bulk thermal conductivity of from about 2 to about 7 W/m-° K and a viscosity measured at 25° C. of at least about 10