Light screening agents
US6033649A · kind A · utility
25Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1996 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Dec 4, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/52
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Photostable, cosmetic light-screening composition, comprising, in a cosmetically acceptable vehicle containing at least one fatty phase, about 0.1 to about 5%, in particular about 1 to about 3% by weight, of a dibenzoylmethane type UV-A screening agent and at least about 0.5%, in particular about 0.5 to about 4.5% by weight, of a .alpha.-cyano-.beta.,.beta.-diphenyl-acrylate stabilizer, the mole ratio of the acrylate to the dibenzoylmethane derivative being less than 0.8, if the amount of the dibenzoylmethane is 1% or more, and, optionally, at least one conventional UV-B filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.