Emulsions sunscreen fluid oil in water containing a surfactant selected gemini and a crosslinked methacrylic acid and ethyl acrylate

摘要

photoprotective composition comprising, in a cosmetically acceptable medium, a) as liquid phase, an emulsion oil in water, emulsified with at least one dimeric surfactant comprising two units of surfactant, which may be identical or different, each being composed of a hydrophilic head and a hydrophobic tail and connected to each other via the hydrophilic heads, by means of a spacer group, said dimeric surfactant selected from compounds of formula (I): formula ** ** wherein R1 and R3 represent alkyl group linear or branched C5-C25, which is saturated or contains up to two non-neighboring unsaturations, R2 represents a C1-C12, X alkylene group and Y each represent a group (C2H4O) x (C3H6O) y-RF with x = 0 - 15, and = 0-10, x + y = 1, and RF = -SO3M, -CH 2 CO 2 M, -P (O) (OM) 2, H, -C3H6SO3M, or a group - CH2 (CHOH) 4CH2OH when x + y = 0, and M represents an alkali metal ion, (alkyl) ammonium, alkanolammonium, H or 01/02 ion meta l alkaline, b) at least one organic UV filter and / or at least one mineral UV filter, c) at least one crosslinked copolymer of methacrylic acid and ethyl acrylate.