Sunscreen compositions
US5935556A · kind A · utility
25Cited by
0References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1998 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Jul 30, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q17/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to compositions suitable for use as sunscreens which have improved storage stability and improved retention of UV absorbance capability. Methods of using the compositions are also disclosed. The compositions comprise an emulsion comprising a safe and effective amount of a UVA-absorbing dibenzoylmethane sunscreen active in one or more oil phases, a safe and effective amount of a formaldehyde donor preservative in one or more aqueous phases, and an emulsifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.