Patent ID: 6395825
Filing Date: 2002-05-28
Classification: C08G

Abstract:
A process for the preparation of a silicone resin comprising adding at least one chlorosilane having silicon bonded chlorine atoms described by formula R1xSiCl4âˆ’x to a two-phase mixture comprising(I) a nonpolar organic solvent, (II) an aqueous phase comprising (i) an amount of water to comprise at least a stoichiometric amount in relation to the silicon bonded chlorine atoms of the chlorosilane, (ii) 0 to about 43 weight percent hydrochloric acid based on the aqueous phase, and (iii) a surface active compound selected from the group consisting of organosulfates described by formula R2SO4H and alkali metal salts thereof, where R1 is selected from the group consisting of hydrogen and monovalent hydrocarbon groups, R2 is selected from the group consisting of alkyl groups comprising about 4 to 16 carbon atoms and alkylphenyl groups comprising 7 to about 22 carbon atoms, and X=0 or 1.