Process of photostabilization of a derivative of...

A - Human Necessities – 61 – K

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Details

A61K 8/35 (2006.01) A61Q 1/00 (2006.01) A61Q 5/00 (2006.01) A61Q 17/04 (2006.01) A61Q 19/00 (2006.01)

Patent

CA 2510310

The current invention relates to a process for photoprotecting, with respect to UV radiation, a dibenzoylmethane derivative; to provide a cosmetic composition or a dermatological composition having improved stability of a dibenzoylmethane derivative to the UV rays for topical application. The cosmetic or dermatological composition containing at least one dibenzoylmethane derivative for improving the stability of the dibenzoylmethane derivative with respect to the UV radiation, uses an arylalkyl benzoate derivative, and a bis-resorcinyl triazine compound. The cosmetic or dermatological composition for topical use comprises (a) at least one dibenzoylmethane derivative-type UV-screening agent, (b) at least one arylalkyl benzoate derivative and (c) at least one bis-resorcinyl triazine compound for the purpose of improving the stability with respect to the UV rays of the dibenzoylmethane derivative.

La présente invention est relative à un procédé de photostabilisation vis-à- vis du rayonnement UV d'au moins un dérivé du dibenzoylméthane par au moins un dérivé arylalkyl benzoate et au moins un composé bis-résorcinyl triazine. Un autre objet de l'invention concerne également une nouvelle composition cosmétique ou dermatologique, à usage topique, caractérisée par le fait qu'elle comprend au moins, dans un support cosmétiquement acceptable: (a) au moins un filtre UV du type dérivé du dibenzoylméthane, (b) au moins un dérivé arylalkyl benzoate, et (c) au moins un composé bis-résorcinyl triazine. La présente invention a également pour objet l'utilisation d'un dérivé arylalkyl benzoate et d'un composé bis- résorcinyl triazine dans une composition cosmétique ou dermatologique comprenant au moins un dérivé du dibenzoylméthane dans le but de d'améliorer la stabilité vis-à- vis des rayons UV dudit dérivé de dibenzoylméthane.

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