Organosiloxanes containing ester derivatives of ascorbic acid
US8278288B2 · kind B2 · utility
1Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2008 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Jul 22, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/0838
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Organosiloxanes containing ester derivatives of ascorbic acid are disclosed having the formula (RiSiO)11Ro-Ii)Si—X-A wherein R is an alkyl group containing 1 to 6 carbon atoms, n is 1 to 3 inclusive, X is a divalent organic linking group, A is an ester derivative of ascorbic acid. A method of making an organosiloxane containing ester derivatives of ascorbic acid and the products prepared according to the method arc also taught. The compounds and compositions of the present disclosure are useful to affect tissue lightening when applied topically to keratinaceous tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.