Composición filtrante que contiene un filtro tipo derivado del dibenzoilmetano y un derivado de 2-hidroxibenzofenona aminosustituido

• Main Author: Candau, Didier
• Format: Patent
• Language: Spanish
• Published: 17.03.2017
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS

Composición cosmética o dermatológica, para uso tópico, caracterizada por que comprende, en un soporte cosméticamente aceptable, al menos: a) 4-(terc-butil)4'-metoxidibenzoilmetano y b) 2-(4-dietilamino-2-hidroxibenzoil)-benzoato de n-hexilo; no conteniendo dicha composición p-metilbencilidenoalcanfor; siendo la relación en peso del derivado de 2-hidroxi-benzofenona al derivado de dibenzoilmetano mayor que 1, y estando presente derivado de dibenzoilmetano en contenidos que van de 2% a 15% en peso, con respecto al peso total de la composición; siempre que la composición sea diferente de las siguientes formulaciones en las que las cantidades se expresan en porcentaje en peso con respecto al peso total de la composición: **Tabla** Cosmetic or dermatological composition for topical use comprises a dibenzoylmethane UV filter and an amino-substituted 2-hydroxybenzophenone and does not contain p-methylbenzylidene camphor. Cosmetic or dermatological composition for topical use comprises a dibenzoylmethane UV filter and an amino-substituted 2-hydroxybenzophenone of formula (I) and does not contain p-methylbenzylidene camphor. R , R = H, 1-20C alkyl, 2-10C alkenyl, 3-10C cycloalkyl or 3-10C cycloalkenyl, or NR R is a 5- or 6-membered ring; R , R = 1-20C alkyl, 2-10C alkenyl, 3-10C cycloalkyl, 3-10C cycloalkenyl, 1-12C alkoxy, 1-20C alkoxycarbonyl, 1-12C alkylamino, 1-12C dialkylamino, optionally substituted (hetero)aryl or a water-solubilizing carboxylate, sulfonate or ammonium group; X = H, COOR or CONR R ; R -R = H, 1-20C alkyl, 2-10C alkenyl, 3-10C cycloalkyl, 3-10C cycloalkenyl, (YO)oZ or aryl; Y = (CH2)2, (CH2)3, (CH2)4 or CH(Me)CH2; Z = Et, n-Pr, n-Bu or i-Pr; m, n = 0-3; o = 1-2. An Independent claim is also included for a method for improving the UV stability of a dibenzoylmethane derivative in a cosmetic or dermatological composition not containing p-methylbenzylidene camphor, comprising associating at least one compound (I) with the dibenzoylmethane derivative.