PHOTOPROTECTIVE COMPOSITIONS COMPRISING PHOTOSENSITIVE 1,3,5-TRIAZINE COMPOUNDS, DIBENZOYLMETHANE COMPOUNDS AND SILICEOUS S-TRIAZINES SUBSTITUTED WITH TWO AMINOBENZOATE OR AMINOBENZAMIDE GROUPS
申请人:L'OREAL
公开号:US20170135933A1
公开(公告)日:2017-05-18
UV-photoprotective, topically applicable cosmetic/dermatological compositions contain:
(a) at least one dibenzoylmethane compound,
(b) at least one 1,3,5-triazine compound that is photosensitive in the presence of a dibenzoylmethane compound, and
(c) at least one siliceous s-triazine compound substituted with two aminobenzoate or aminobenzamide groups, or a tautomeric form thereof, the 1,3,5-triazine compounds being improvedly photostable in such compositions.
The 1,3,5-triazine derivatives 1−4 having styryl or higher oligo(phenylenevinylene) chains in the 2-, 4-, and 6-positions represent star-shapedpush-pullcompounds. Alkoxy or dimethylamino groups on the peripheral benzene rings, which act as electron donors, and the central 1,3,5-triazine ring, which acts as an electron acceptor, cause intramolecular charge transfer (ICT) to occur in the absorption