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 organic sunscreen compositions with antioxidant properties
申请人:Merck Patent GmbH
公开号:EP1747773A2
公开(公告)日:2007-01-31
A compound of formula I
wherein
A is a moiety which provides UV absorbing activity to the compound of formula I that comprises 2 monovalent groups having carbonyl (C=O) functionality. R6 is linear or branched C1-C8 alkyl and R5 is a linear or branched C1-C8 alkyl or hydrogen or linear or branched -O-C1-8 alkyl. Sunscreen formulations which contain these compounds and methods for using these compounds to prepare formulations are also provided.
式 I 的化合物
其中
A 是为式 I 化合物提供紫外线吸收活性的分子,包括 2 个具有羰基 (C=O) 功能的单价基团。R6 是直链或支链 C1-C8 烷基,R5 是直链或支链 C1-C8 烷基或氢或直链或支链 -O-C1-8 烷基。还提供了含有这些化合物的防晒配方和使用这些化合物制备配方的方法。
Photostable organic sunscreen compounds with antioxidant properties and compositions obtained therefrom
申请人:Merck Patent GmbH
公开号:EP1952843A1
公开(公告)日:2008-08-06
A compound of formula 11
wherein
R1 is selected from the group consisting of -C(O)CH3, -CO2R3, -C(O)NH2 and -C(O)N(R4)2; X is O or NH; R2 is linear or branched C1 to C30 alkyl; R3 is linear or branched C1 to C20 alkyl; and each R4 is independently hydrogen, or linear or branched C1 to C8 alkyl; R5 is hydrogen, and R6 is linear or branched C1-C8 alkyl.
Sunscreen formulations which contain these compounds and methods for using these compounds to prepare formulations are also provided.