Block copolymer, composition comprising it and cosmetic treatment process
US7632905B2 · kind B2 · utility
4Cited by
18References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2005 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Apr 8, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a linear ethylenic block copolymer comprising in each block at least one ionic hydrophilic unit, which may be different from one block to another, the said ionic hydrophilic unit being present in each block in a proportion of from 2% to 100% by weight relative to the weight of the said block.The invention also relates to a cosmetic or pharmaceutical composition comprising such a copolymer, and also to a cosmetic process for making up or caring for keratin materials using the said composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.