Cosmetic composition comprising a carboxy-functional elastomer
AssigneeDow Silicones Corporation
InventorsCrofoot Mary Kay, Roxanne R. Haller, Donald A. Kadlec, Zhi Li, Kimmai T. Nguyen, Kenneth E. Zimmerman
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Abstract
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—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.
Claims22
A cosmetic composition comprising:
- (a) an elastomer having at least two siloxy (Si—O) groups and at least two carboxyl groups, the elastomer comprising the reaction product of a reaction of:
- a first siloxane having at least one pendant anhydride group;
- a second siloxane having at least one pendant anhydride group;
- and
- a reactant selected from the group of;
- i) an organic polyol having at least two hydroxyl groups reactive with the pendant anhydride groups of the first and second siloxanes, and
- ii) a third siloxane having at least two hydroxyl groups reactive with the pendant anhydride groups of the first and second siloxanes;
- and
- (b) at least one cosmetic component;
- (c) optionally in a cosmetically acceptable medium.
A cosmetic composition comprising:
- (a) an elastomer having at least two siloxy (Si—O) groups and at least two carboxyl groups, the elastomer comprising the reaction product of a reaction of:
- a first component having at least two hydroxyl groups;
- a second component having at least two hydroxyl groups;
- and
- a siloxane having at least two terminal anhydride groups reactive with the hydroxyl groups of the first and second components for linking the first component to the second component;
- and
- (b) at least one cosmetic component;
- (c) optionally in a cosmetically acceptable medium;
- wherein the first component is selected from the group of;
- i) a first siloxane different from the siloxane, and
- ii) a first organic alcohol;
- and
- wherein the second component is selected from the group of;
- i) a second siloxane different from the siloxane, and
- ii) a second organic alcohol.
Dependencies are inferred from the claim text.