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US 11,452,676 B2Granted
Combination of polyion complex particle and non-polymeric base having two or more dissociation constants
AssigneeL'oreal
InventorsToshifumi Shiroya, Hidehiko Asanuma, Takehiko Kasai
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Abstract
The present invention relates to a composition, preferably a cosmetic composition, and more preferably a skin cosmetic composition, comprising: (a) at least one particle, comprising at least one cationic polymer, at least one anionic polymer and at least one non-polymeric base having two or more pKb values or salt(s) thereof; and (b) at least one physiologically acceptable volatile medium. The composition according to the present invention is stable, and can have a variety of cosmetic functions.
Claims14
A composition, comprising:
- (a) at least one polyion complex particle formed of:
- at least one cationic polymer,
- at least one anionic polymer, and
- at least one non-polymeric base having two or more pKb values or salt thereof;
- wherein the at least one non-polymeric base having two or more pKb values crosslinks the at least one cationic polymer and the at least one anionic polymer to form the polyion complex particle, and wherein the at least one non-polymeric base having two or more pKb values is selected from the group consisting of arginine, lysine, histidine, ornithine, and a mixture thereof;
- and
- (b) at least one physiologically acceptable volatile medium.
4 more elements
Dependencies are inferred from the claim text.