SILICONE BEAD, METHOD FOR PREPARING THE SAME, AND THERMOPLASTIC RESIN COMPOSITION USING THE SAME

摘要

A method for preparing a polyorganosilsesquioxane fine particle, the polyorganosilsesquioxane fine particle prepared by the method, a thermoplastic resin composition containing the particle, and a diffusion plate for an LCD TV containing the particle are provided to use the polyorganosilsesquioxane fine particle as a diffusing agent for improving brightness and light resistance. A method for preparing a polyorganosilsesquioxane fine particle comprises the steps of mixing an organochlorosilane and an organotrialkoxysilane so as to make the concentration of organochlorosilane be 100-2,000 ppm; mixing the obtained one with water to prepare a transparent sol; and maintaining the pH of the sol to be 8-11. Preferably the organochlorosilane is represented by R1Si(OR2)_(3-x) Clx and the organotrialkoxysilane is represented by R1Si(OR2)3, wherein R1 is a C1-C6 alkyl group, a vinyl group or an aryl group; R2 is a C1-C5 alkyl group; and x is 1-3.