Patent ID: 7354571
Filing Date: 2008-04-08
Classification: A61K,A61Q,C07F

Abstract:
1. A topically applicable cosmetic/dermatological composition suited for photoprotecting keratin materials, comprising an effective UV-photoprotecting amount of at least one methyltrialkylsilane compound having the formula (I) below: in which: B is a chromophoric group having either of formulae (1) and (2) below: R R n is an integer ranging from 0 to 3 inclusive; X is —O— or —NR A is a hydrogen atom, a linear or branched C the radical R′ is a hydrogen atom, a linear or branched C the radicals R″, which may be identical or different, are each a hydroxyl radical, a linear or branched C Z, Z′ and Z″, which may be identical or different, are each a hydrogen atom, a linear or branched C (i) at least one of the radicals Z′ and Z″ is other than hydrogen, and (ii) when Z′ is —SO R R R Z′ and Z″ may also together form a Meldrum acid of formula (3) below: in which R