PHOTOSTABILIZATION OF A DIBENZOYLMETHANE BY A SILICON-CONTAINING S-TRIAZINE SUBSTITUTED WITH TWO AMINOBENZOATE OR AMINOBENZAMIDE GROUPS; PHOTOPROTECTIVE COMPOSITIONS. NOVEL SILICON-CONTAINING S-TRIAZINE COMPOUNDS

摘要

The present invention concerns a method for photostabilizing at least onedibenzoylmethane derivative against UV radiation using at least one silicon-containing s-triazine substituted with two aminobenzoate or aminobenzamidegroups with a given formula. The present invention also pertains to acomposition comprising at least one UV screening system in a physiologicallyacceptable support, characterized in that it comprises at least: (a) at leastone UV screen of the dibenzoylmethane derivative type; and (b) at least onesilicon-containing s-triazine compound substituted with two aminobenzoate oraminobenzamide groups with a given formula. The present invention alsopertains to the use of at least one silicon-containing s-triazine substitutedwith two aminobenzoate or aminobenzamide groups with a given formula in acomposition comprising at least one dibenzoylmethane derivative in aphysiologically acceptable support, to improve the stability of saiddibenzoylmethane derivative to UV radiation.