Patent ID: 6255257
Filing Date: 2001-07-03
Classification: C10M,C10N

Abstract:
A silicone grease composition comprising:(A) 50 to 95 weight % of a mixture of an aluminum nitride powder .alpha. having an average particle size of 0.5 to 5 .mu.m and an aluminum nitride powder .beta. having an average particle size of 6 to 20 .mu.m, wherein the aluminum nitride powders .alpha. and .beta. are mixed so that the .alpha./(.alpha.+.beta.) ratio by weight is from 0.1 to 0.9 and the average particle size after mixing is from 1 to 10 .mu.m,(B) 5 to 15 weight % of organopolysiloxanes having a viscosity of from 50 to 50,000 cs at 25.degree. C. and represented by formula R.sup.1.sub.a SiO.sub.(4-a)/2 , wherein R.sup.1 represents at least one group selected from saturated or unsaturated univalent hydrocarbon groups containing 1 to 18 carbon atoms and 1.8.ltoreq.a.ltoreq.2.2, and(C) 0 to 35 weight % of at least one inorganic compound powder having an average particle size of 0.5 to 100 .mu.m selected from the group consisting of zinc oxide, alumina, boron nitride and silicon carbide powders.