Cosmetic use of copolymers with a rigid hydrophilic backbone grafted by flexible hydrophobic macromonomers, and compositions therefor
US6403106B1 · kind B1 · utility
15Cited by
6References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1998 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Nov 18, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The subject-matter of the present invention is the use, in and for the preparation of cosmetic or dermatological compositions, of a grafted copolymer, the skeleton (S) of which is composed of a hydrophilic copolymer, with a glass transition temperature Tg greater than 25° C., obtained by radical polymerization or by polycondensation, comprising, on the chain of the skeleton (S), at least one graft composed of a hydrophobic macromonomer (M) with a glass transition temperature T'g of less than 25° C., as well as the cosmetic or dermatological compositions employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.