Photostabilization of dibenzoylmethane derivatives
US6803063B2 · kind B2 · utility
1Cited by
1References
19Claims
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Inventor
Key dates
| Filing date | Nov 8, 2002 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Apr 2, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/52
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
By using 2,4-bis[[4-(2-ethylhexyloxy)-2-hydroxy]phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine, the photostability of dibenzoylmethane derivatives is substantially improved and, indirectly, stabilisation of cinnamic acid esters is also effected, by which means there are made possible photostable cosmetic compositions for protection against UV radiation which have a high sun protection factor and a high absorbance in both the UVA and UVB range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.