Patent FR-2949332-A1 (FR)
Title: Composition, useful e.g. as sun protection product, comprises in a support at least one UV filter system, which comprises at least one dibenzoylmethane derivative, phenol or bis-phenol compound and siliceous-s-triazine compound
Inventor: RICHARD HERVE
IPC: A61K8/49
Filed: 2009-08-28
Abstract: Composition (A) comprises in a support at least one UV filter system, which comprises (i) at least one dibenzoylmethane derivative; (ii) at least one phenol or bis-phenol compounds (I) or (II); and (iii) at least one siliceous-s-triazine compound (XI) or its tautomeric forms, where (XI) contains silane units, and organosiloxane group. Composition (A) comprises in a support at least one UV filter system, which comprises (i) at least one dibenzoylmethane derivative; (ii) at least one phenol or bis-phenol compounds of formula (I) or (II); and (iii) at least one siliceous-s-triazine compound of formula (G-Si(R1a) a1-O (3-a 1)/2) (XI) or its tautomeric forms, where (XI) contains silane units of formula (-A1a-(Si)(R) a1(O) 3-a1/2), and organosiloxane group of formula (R b1-Si(O) 4-b1/2). In formula (I) and (II): Either R 1>H or 1-4C alkyl; or R 1>R 1>5-7C ring; R 2>H, 1-20C alkyl (optionally containing at least one substituent comprising 5-7C carbon ring, O, N, S or Si), 1-20C alkenyl , or 1-20C alkyl aryl; R 3>1-20C alkoxy (optionally substituted by at least one O or Si), 1-20C alkyl or 1-20C hydroxyalkyl (both optionally containing at least one 5-7C carbon ring, O, N, S or Si), 1-20C alkenyl, or 7-20C alkylaryl (optionally substituted on a part of aryl by at least one OH or 1-4C alkoxy); R 3>R 3>5-7C ring optionally substituted by at least one O; m : 0-2; n : 0-3; p, q, w : 0 or 1; A : linker between the two aryl rings and is a direct bond, a methylene group, mono- or di-substituted by 1-4C alkyl, S or O, provided that when p is 1, R 1>and R 2>are different from hydrogen and R 3>is in ortho position to the OH, then R 3>is different from tert-alkyl (preferably tert-butyl) group; R : 1-20C alkyl (optionally halogenated), 6-12C aryl, 3,3,3-trifluoropropyl, trimethylsilyloxy or 1-10C alkoxy; a : 0-3; B 1>group of formula (-Z-CHW 1>-(Z) v-) (III), (-CH=CH-(Z) v-) (IV), or (-CH(=CH 2)-(Z) v-) (V); Z : 1-6C alkylene (optionally saturated and substituted by OH or 1-8C alkyl); W 1>H, OH or 1-8C alkyl optionally saturated; and v : 0 or 1. In formula (XI): R1a : 1-30C alkyl optionally halogenated or unsaturated, 6-12C aryl, 1-10C alkoxy, OH or trimethylsilyloxy; a1 : 0-3; b1 : 1-3; G : s-triazine group of formula (XII); X : O or NR 3>; R 3>H or 1-5C alkyl; R 1>1-30C alkyl (optionally unsaturated and containing silicon atom), 5-20C cycloalkyl (optionally substituted by 1-3 1-4C alkyl group), or group of formula (-(CH 2CHR 4>-O) m1R 5>) or (-CH 2CH(OH)CH 2-O-R 6>); R 4>H or CH 3, where the group (C=O)XR 1>may be ortho, meta or para to the amino group; R 5>H or 1-8C alkyl; R 6>H or 4-8C alkyl; m1 : 2-20; n1 : 0-2; either R 2>OH, 1-8C alkyl, or 1-8C alkoxy; or R 2>R 2>1 or 2C alkylidene dioxy group; A1a : divalent radical comprising methylene, -[CHSi(CH 3) 3]-, ethylene or group of formula (-Z1a-CHW1a-CH 2-) (XIII), (-Z1a-CHCH 3-) (XIV), (-Z1a-CH=CH-) (XV), or (-Z1a-CH(=CH 2)-) (XVI); Z1a : 1-10C alkylene diradical (optionally substituted by OH or O and optionally containing amino group); and W1a : H, OH or optionally saturated 1-8C alkyl. An independent claim is included for method for improving chemical stability, against UV radiation, of at least one dibenzoylmethane derivative comprising combining dibenzoylmethane derivative with the phenol or bisphenol compound (I) or (II) and at least one siliceous-s-triazine compound (XI). [Image] [Image].