Skin care composition containing an anionic polymer
US7455848B2 · kind B2 · utility
8Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2002 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Jul 11, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetically acceptable composition for treating skin comprising about 0.1 to about 20 weight percent, based on polymer solids, of an anionic polymer composed of from about 10 to about 80 mole percent of 2-acrylamido-2-methyl-1-propanesulfonic acid or a base addition salt thereof and from about 90 to about 20 mole percent of one or more anionic or nonionic monomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.