Photostable cosmetic light screening compositions
US6338838B1 · kind B1 · utility
12Cited by
8References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 2000 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | May 9, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/52
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a photostable cosmetic or pharmaceutical light screening composition containing a dibenzoylmethane UV-A screening agent and a p-methoxycinnamate UV-B screening agent, one of said agents being incorporated into a polymer latex; and, optionally, other conventional UV-A and UV-B screening agents. Additionally, the present invention relates to a method of photostabilizing dibenzoyl-methane UV-A screening agents and p-methoxycinnamate UV-B screening agents when used together, by incorporating one of these agents into a polymer latex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.