Cosmetic composition containing oil phase and naphthopyran photochromic dye, useful e.g. as make up, provides rapid and reversible color change on exposure to sunlight

摘要

Cosmetic composition (A) comprises, in a suitable medium, at least one oil phase (OP) and at least one naphthopyran (B), soluble in OP. Cosmetic composition (A) comprises, in a suitable medium, at least one oil phase (OP) and at least one naphthopyran (B), of formulae (I) or (II), soluble in OP. R1 = hydrogen or a substituent; R5 and R6 = saturated or unsaturated cyclic aminoaryl groups, indolinoaryl groups, or a 1-30, best 3-12, C hydrocarbyl group (Hy), linear, branched, cyclic, saturated or unsaturated, optionally containing 1-5 heteroatoms (nitrogen, oxygen, sulfur, silicon or phosphorus), particularly phenyl substituted by CONR2R3, NR2R3 or OR4; R7, R1' and R2' = hydrogen or substituents; R2 and R3 = Hy or together they complete a heterocycle containing 3-10, preferably 4-6 C atoms and optionally 1-5 additional heteroatoms, and optionally substituted by Hy; and R4 = Hy, optionally (per)halogenated, preferably by fluoro, bromo and/or chloro. The full definitions are given in the DEFINITIONS (Full Definitions) Field.