A method for the preparation of siloxane together settling, cosmetic preparations, and glossy mach end means that these compositions contain.

摘要

PURPOSE:To obtain the title pasty or greasy composition improved in evenness, touch and smoothness by distilling the organic solvent from a mixture of a low-viscosity silicone oil with a specified organosilica sol and mixing the residue under an applied shear. CONSTITUTION:A mixture is obtained by mixing a low-viscosity silicone oil (A) of the formula RaSiO(4-a)/2 [wherein R is an (un)substituted 1-6C monovalent hydrocarbon group, and a is 1.8-2.3] and a viscosity (at 25 deg.C) =100cSt with an organosilica sol (B) prepared by dispersing spherical porous trimethylsilylated silica particles of a mean particle diameter of 10-100mum, a specific surface area =300m2/g, a trimethylsilyl group density of 0.5-10mol/m2, an alkoxy group density of 0.5-10mumol/m2 and a silanol group density of 0.5-5mumol/m2. The organic solvent is removed from this mixture, and the residue is uniformly mixed under an applied shear to obtain the title composition comprising 50-95%, desirably, 70-90% component A in which 5-50%, desirably, 10-30% spherical porous silica is uniformly dispersed.