Water resistant UV-protective cosmetic and/or dermatological compositions containing specified benzotriazoles also contain organosiloxane elastomer powder coated with a trimethylsiloxysilicate or derivative

• Main Authors: FIEDLER, DOROTHEE, LANZENDOERFER, GHITA, RIEDEL, HEIDI, SCHULZ, JENS
• Format: Patent
• Language: English; German
• Published: 05.06.2003
• Edition: 7
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS

Trimethylsiloxysilicates or their derivatives are used as coatings for organosiloxane elastomer powders used with 2-(2H-benzotriazol-2-yl)-4-methyl-6-(2-methyl-3-(1,1,3,3-tetramethyl-1-((trimethylsilyl)oxy)disiloxanyl)propyl)-phenol and/or 2,2'-methylene-bis-(6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)-phenol) in UV-protective cosmetic and/or dermatological compositions. UV-protective cosmetic and/or dermatological compositions contain: (A) 2-(2H-benzotriazol-2-yl)-4-methyl-6-(2-methyl-3-(1,1,3,3-tetramethyl-1-((trimethylsilyl)oxy)disiloxanyl)propyl)-phenol and/or 2,2'-methylene-bis-(6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)-phenol); and (B) a coated powder with a siloxane elastomer core obtained by reaction of either: (i) vinyl-terminated polymethylsiloxanes and methylhydrodimethylsiloxanes; or (ii) OH-terminated dimethylpolysiloxanes and trimethylsiloxy-terminated methylpolysiloxanes. The composition is such that the coating is of a trimethylsiloxysilicate and/or its derivatives. Kosmetische und/oder dermatologische Zubereitung zum Schutz vor UV-Strahlung mit Benzotriazolen und beschichteten Pulvern, bestehend aus einem Kern aus mindestens einem Siloxanelastomeren und einer Beschichtung aus einem Trimethylsiloxysilikat und/oder dessen Derivat.