Cationic copolymers formulated with pigmented cosmetic compositions exhibiting radiance with soft focus
US8105617B2 · kind B2 · utility
1Cited by
6References
5Claims
0Family size
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Key dates
| Filing date | Dec 16, 2008 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Feb 22, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/436
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetic composition is provided which includes a silicone elastomer, a cationic copolymer with monomeric units selected from at least an acryloylethyl tri(C1-C3 alkyl)ammonium salt, and light reflecting platelet shaped particles. The compositions are particularly useful to impart radiance as well as soft focus effects onto the skin. A particular useful cationic copolymer is that of acrylamide/acryloylethyl trimethylammonium chloride/tris(hydroxymethyl)acrylamidomethane copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.