Patent ID: 7449193
Filing Date: 2008-11-11
Classification: A61K,A61Q,B82Y,C01P,C09C

Abstract:
1. A process for producing a silicone-treated hydrophobic powder comprising the steps of: coating a surface of a starting powder with (1) a silicone compound having at least one Si—H group or (2) a mixture of the silicone compound (I) and a silicone compound not having an Si—H group, as a first step; and then heating the silicone compound coated powder at a temperature of 260 to 480° C. for 0.1 to 24 hours, as a second step, whereby the Si—H groups of silicone compound (I) are cross-linked, wherein said silicone compound having an Si—H group is a silicone compound having the formula (I): wherein R