Silicone copolymer and cosmetics comprising the same
US7955608B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 17, 2008 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Mar 29, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/20
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An aqueous composition used for cosmetics, characterized in that the composition comprises 0.5 to 50 wt %, based on weight of the composition, of a copolymer having main chains comprising the repeating units represented by the following formula (1), the repeating units represented by the following formula (2), and the repeating units represented by the following formula (3), said main chains being crosslinked by a compound or oligomer having 2 to 6 (meth)acryl groupswherein R1 is a hydrogen atom or a hydrocarbon group having 1 to 3 carbon atoms, R2 is a hydrocarbon group having 1 to 24 carbon atoms, R3 is a divalent hydrocarbon group having 1 to 4 carbon atoms, R4 is an aliphatic hydrocarbon group having 1 to 6 carbon atoms or a phenyl group, X is a hydrogen atom, an alkaline metal ion, ammonium ion, or an organic ammonium ion, m is an integer of from 0 to 500 on average, and n is an integer of from 1 to 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.