Light-screening agents

Details Light-screening agents Light-screening agents

A - Human Necessities

61

K

A61K 8/35 (2006.01) A61K 8/40 (2006.01) A61Q 17/04 (2006.01)

Patent

CA 2241645

The invention relates to a photostabilized dibenzoylmethane type UV-A screening agent stabilized by at least one compound of formula I (see fig. I) wherein R1 and R2 are equal or different and represent linear or branched alkyl or alkoxy radicals with 1 to 18 C atoms or one of R1 and R2 is a hydrogen atom and n is 1 or 2.

Cette invention concerne un agent de filtrage de type UV-A, à base de dibenzoylméthane, photostabilisé par au moins un composé de formule I (voir figure I), dans laquelle R1 et R2 sont identiques ou différents et représentent des radicaux alkyles ou alcoxy linéaires ou ramifiés en C1-C18, ou bien soit R1, soit R2 est un atome d'hydrogène, et n est égal à 1 ou à 2.

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