Pcr, Inc.

William I Latham, Iii

Gary E LeGrow

The invention provides high purity branched alkylsilsesquioxane containing fluids of the general formula Me.sub.3 SiO--(Me.sub.3 SiORSiO).sub.x --SiMe.sub.3, wherein Me is methyl, R is a monovalent hydrocarbon substituent, and x is 1 to 6, and an essentially zero waste process for their synthesis in quantitative yield; and especially n-octylsilsesquioxane containing fluids which are structural analogs of phenylsilsesquioxane containing fluids of the general formula Me.sub.3 SiO--(Me.sub.3 SiOPhSiO).sub.x --SiMe.sub.3, wherein Me is methyl, Ph is phenyl, x is 1 to 6, and have substantially identical sensory properties to their phenylsilsesquioxane counterparts.

High purity branched alkylsilsesquioxane fluids

The invention provides high purity alkoxytrimethylsilane fluids of the general formula ROSiMe.sub.3 wherein Me is methyl and R is a monovalent aliphatic hydrocarbon substituent which ranges from 14 to about 20 carbons, the fluid being substantially free of organic and inorganic contaminants, wherein the alkoxytrimethylsilanes are produced by a novel process, and can be readily incorporated into cosmetic formulations containing organic components without heating and provide improved sensory characteristics compared to those provided by the corresponding alcohols.

High purity alkoxytrimethylsilane fluids

The invention provides high purity branched phenylsilsesquioxane containing fluids of the general formula Me.sub.3 SiO--(Me.sub.3 SiOPhSiO).sub.x --SiMe.sub.3, wherein Me is methyl, Ph is phenyl, and x is 1 to 6, and an essentially zero waste process for their synthesis in quantitative yield.

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Gainesville, FL, United States of America

William I Latham, Iii