Tocopheryl ascorbyl phosphate-cyclodextrin clathrate and a topical dermal composition containing said clathrate
US5879692A · kind A · utility
4Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1997 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Aug 25, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/56
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides a clathrate comprising a cyclodextrin or hydroxyalkylated cyclodextrin and, as included therein, dl-.alpha.-tocopheryl L-ascorbyl phosphate. In another aspect, the invention provides a dermal composition for external use, particularly a cosmetic composition. The composition is characterized by reduced foam production in aqueous solution and good stability against light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.