PHOTO STABLE ORGANIC SUNSCREEN COMPOUNDS WITH ANTIOXIDANT PROPERTIES AND COMPOSITIONS OBTAINED THEREFROM
申请人:EM Industries
公开号:US20030157035A1
公开(公告)日:2003-08-21
A compound of formula I
1
wherein
A is a moiety which provides UV absorbing activity to the compound of formula I that comprises 1 divalent group or 2 monovalent groups, with at least one group having carbonyl (C═O) functionality. R
6
is linear or branched C
1
-C
8
alkyl and R
5
is a linear or branched C
1
-C
8
alkyl or hydrogen. Sunscreen formulations which contain these compounds and methods for using these compounds to prepare formulations are also provided.
The present invention relates to a sunscreen capsule comprising i) at least one UV-A organic sunscreen and ii) at least one photostabilizer; furthermore it relates to a composition for topical application comprising these capsule and methods of production and use of these capsules and compositions.
Photostable broad-spectrum organic sunscreen compositions comprising a UV-A sunscreen, such as Avobenzone, a photostabilizer, a UV-B liquid organic sunscreen, and a solubilizer and further enhancing the photostability by encapsulation using a sol-gel process.