Porous microspheres coated with a perfluorinated oil, a fluorinated silicone oil or a silicone gum and cosmetic compositions containing them
US5358719A · kind A · utility
33Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1992 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Apr 21, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/624
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Porous microspheres have fixed on the exterior surface thereof a coating of at least one of a perfluorinated oil, a fluorinated silicone oil or a silicone gum. The pores of the microspheres can be charged with a hydrophilic, lipophilic or perfluorinated phase. The microspheres are employed in cosmetic compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.