Sunscreen composite particles in cosmetic compositions
US7776350B2 · kind B2 · utility
5Cited by
26References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2008 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Oct 3, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A cosmetic composition is provided which includes hydrophilic composite particles of an organic sunscreen agent, particles of a crosslinked silicone elastomer, and a cosmetically acceptable carrier. The hydrophilic composite particles are formed as a composite of sunscreen agent and binder in a relative weight ratio of about 5:1 to about 1:10. 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.