Sunscreen composite particles dispersed in water-in-oil cosmetic compositions
US7914772B2 · kind B2 · utility
5Cited by
27References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2008 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Jun 30, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/413
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetic water-in-oil emulsion composition is provided which includes composite particles of a sunscreen agent and a condensation polymerized polyamide binder, an emulsifying silicone surfactant sufficient to form the water-in-oil emulsion, an oil phase, and a water phase. The composition exhibits relatively high SPF photoprotection while maintaining excellent soft focus properties that hide skin imperfections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.