Cosmetic sunscreen compositions based on a synergistic mixture of filters and uses

摘要

Cosmetic or dermatological composition for topical use, in particular for skin and / or hair photoprotection, characterized in that it comprises, in a cosmetically acceptable vehicle: (a) as the first filter, at least one insoluble organic UV filter of a size of particle ranging from 10 nm to 5 μm and selected from organic UV filters of the oxalanilide type; triazine type; vinyl amide type; cinnamamide type; of the type that includes one or more benzazol and / or benzofuran, benzothiophene or indole groups; arylvinylene ketone type; phenylene bis-benzoxazinone derivative type of amide, sulfonamide or acrylonitrile carbamate type; polyvalent metal salts of organic sulfonic or carboxylic UV filters, and (b) as a second filter, at least one amino-substituted 2-hydroxybenzophenone derivative of formula (I) below: ** Formula ** in which: R1 and R2, identical or different, designates a hydrogen atom, a C1-C20 alkyl radical, a C2-C10 alkenyl radical, a C3-C10 cycloalkyl radical, a C3-C10 cycloalkenyl radical; R1 and R2 can also form a 5 or 6-membered ring with the nitrogen atom to which they are attached; R3 and R4, identical or different, designate a C1-C20 alkyl radical, a C2-C10 alkenyl radical, a C3-C10 cycloalkyl radical, a C3-C10 cycloalkenyl radical, a C1-C12 alkoxy radical, a (C1-) alkoxycarbonyl radical C20), a C1-C12 alkylamino radical, a C1-C12 dialkylamino radical, an aryl radical or an optionally substituted heteroaryl, a water-soluble substituents selected from a carboxylate group, a sulfonate group or an ammonium moiety; X designates a hydrogen atom, a COOR5 or CONR6R7 group; R5, R6 and R7, identical or different, designate a hydrogen atom, a C1-C20 alkyl radical, a C2-C10 alkenyl radical, a C3-C10 cycloalkyl radical, a C3-C10 cycloalkenyl radical, a group - (YO) oZ or an aryl group; Y designates - (CH2) 2-, - (CH2) 3- - (CH2) 4-, -CH- (CH3) -CH2-; Z represents -CH2-CH3, -CH2CH2CH3, -CH2-CH2-CH2-CH3, -CH (CH3) -CH3; m is an integer that varies from 0 to 3; n is an integer that varies from 0 to 3; or is an integer that varies from 1 to 2.