Photostable cosmetic composition filter in the form of emulsion containing a water-soluble broadband filter absorption and at least one liposoluble UV-A filter.

摘要

The invention relates to a filter containing emulsion in joint ventures GAS PHASE, a photostable FILTER WITH GREAT absorption band consisting of 1,4-benzene [di (3-methylidene-10-camphorsulfonic)], partly or wholly nEUTRALIZED, OILY PHASE AND, a photostable FILTERING OF UV-A SYSTEM CONTAINING AT LEAST ONE of the following compounds: N- (2-ethylhexyl) -3 [(3 '' - METHOXY-4 '' - N-butoxy) -benzylidene] 10-CANFOSULFONAMIDA (COMPOUND 2), 4- (1,1-dimethylethyl) -4 '- METHOXYDIBENZOYLMETHANE (COMPOUND 3) and 4-isopropyl dibenzoylmethane (COMPOUND 4), these last two photochemically STABILIZED COMPOUNDS 3 AND 4 BY at least one filter LIPOSOLUBLE WAVELENGTH MAXIMA BELOW 330nM chosen from benzylidenecamphor DERIVATIVES AS FOLLOWS: benzylidenecamphor (compound 5), P-methylbenzylidene camphor (compound 6), N- (2-ethylhexyl ) -4- (3 '' - methylidene ALCANFOR) BENZENE sulfonamide (compound 7) and 3-methoxy-4-N-BUTOXIBENCILIDEN ALCANFOR (COMPOUND 8). ESTACOMPOSICION is intended to protect the skin from UV RAYS WAVELENGTH between 280 and 380 nm.