Composition providing a lasting cosmetic and/or pharmaceutical treatment of the upper epidermal layers by topical application on the skin
US5556617A · kind A · utility
21Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2985
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition containing, in a suitable carrier, nanoparticles of one or more nonbiodegradable polymer(s) encapsulating an oily phase which contains at least one active oil and/or at least one carrier oil and/or at least one active ingredient in an active oil and/or a carrier oil. At least one active ingredient is chosen from those with prolonged cosmetic and/or pharmaceutical activity. The nanocapsules have a size of 100-1000 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.