Use of an organosiloxane and / or an organosilane antioxidant for the photoprotection of the color of the subject-matter colorees naturally or artificially

摘要

Organosiloxanes or organosilanes bearing antioxidant groups are used in cosmetic or dermatological compositions as agents for protecting the color of naturally colored or artificially dyed keratinic fibers. Independent claims are also included for organosilanes of formula (I) to (VI): R2 = (CH2)q-(X)m-(CH2)p-CHZ-CH2; p,q = 0-10; Z = H or 1-4 C alkyl; Y = 1-12 C alkyl, 5-7 C cycloalkyl, OH, alkyl alkoxy (sic), halogen or 1-4 C alkoxy; X = O, NRc, O(CO), NRc(CO) or NRc(CO)O; Rc = H or 1-4 C alkyl; m = 0 or 1; R1 = 1-10 C alkyl or 1-8 C alkoxy, but not alkoxy in (I)-(III) or (VI); R = H, oxido, 1-8 C alkyl, 2-4 C hydroxyalkyl, alkylcarbonyl, phenyl, benzyl, 1-6 C alkyl or 3-6 C cycloalkyl; Rb = 1-8 C alkyl; A = Z'-NH-CO-CO-NH-F; Z' = H, (un)saturated linear or branched 1-20 C hydrocarbyl optionally substituted by OH and optionally interrupted by O, N and/or aromatic ring(s), or (it is stated) a group as defined for F; R = 1-10 C alkyl, phenyl or 3,3,3-trifluoropropyl, at least 80% being methyl; B = R or A; r = 0-50; s = 0-20, provided that at least one B is A if s = 0; u = 1-6; t = 0-10, provided that t+u = 3 or more.