Dow Silicones Corporation

Roxanne Haller

Kimmai Thi Nguyen

Donald Anthony Kadlec

Kenneth Edward Zimmerman

Zhi Li

Mary Kay Crofoot

Crofoot Mary Kay

A cross-linked composition comprises the reaction product of an organohydrogensiloxane and a cross-linker, in the presence of a hydrosilylation catalyst. The organohydrogensiloxane comprises siloxy units of average formula (I): (RSiO)(R&#x2014;SiO)(RRSiO)(RHSiO)(RRSiO)(RRSiO)&#x2014;(RSi&#x2014;O). Each of Rand Ris an independently selected hydrogen atom or a substituted or unsubstituted hydrocarbyl group. Ris a hydrogen atom or a group having at least one carboxyl group or a precursor thereof. Ris an independently selected substituted or unsubstituted hydrocarbyl group. Further, a&#x2265;0, b&#x2265;0, c&#x2265;1, d&#x2265;0, and e&#x2265;1. The cross-linker has at least two aliphatic unsaturated hydrocarbon groups. A method of forming the cross-linked composition comprises the steps of providing the organohydrogensiloxane and cross-linker, and combining the organohydrogensiloxane and cross-linker in the presence of the hydrosilylation catalyst to form the cross-linked composition. A cosmetic composition is provided that includes the cross-linked composition and at least one cosmetic component.

Cross-linked composition and cosmetic composition comprising the same

A cosmetic composition is provided that includes an elastomer and at least one cosmetic component optionally in a cosmetically acceptable medium. The elastomer is according to the general formula: A-B-A or B-A-B, wherein each A independently comprises a polysiloxane moiety having at least two siloxy (Si&#x2014;O) groups and wherein each B independently comprises a moiety, or a precursor thereof, having at least two carboxyl groups and wherein B is bonded to a silicon atom in A.

Cosmetic composition comprising a carboxy-functional elastomer

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Saginaw, MI, United States of America

Roxanne Haller