| 摘要 |
PROBLEM TO BE SOLVED: To provide a new method for producing polyorganosilsesquioxane fine particles, silicon-based fine particles produced by the method, and a thermoplastic resin composition containing the fine particles. SOLUTION: The method for producing the polyorganosilsesquioxane fine particles comprises steps of (a) mixing an organotrialkoxysilane with an organochlorosilane to produce a mixture having concentration of the organochlorosilane of about 100-2,000 ppm, (b) mixing water with the mixture to obtain a sol solution, and (c) maintaining the pH of the sol solution at about 8-11. The organochlorosilane is represented by formula (I): R<SP>1</SP>Si(OR<SP>2</SP>)<SB>3</SB>(I), wherein R<SP>1</SP>represents a 1-6C alkyl group, a vinyl group or a 5-30C aryl group, and R<SP>2</SP>represents a 1-5C alkyl group. COPYRIGHT: (C)2008,JPO&INPIT |
