Patent ID: 6183728
Filing Date: 2001-02-06
Classification: A61K,A61Q,B82Y,Y10S

Abstract:
Screening cosmetic composition comprising, in a comsmetically acceptable carrier, at least one nanopigment of metallic oxides selected from the group consisting of titanium, zinc, cerium, zirconium and iron oxides and mixtures thereof, with a mean diameter of less than 100 nm, and at least one polymer carrying at least one ultraviolet-absorbing group which is a fat-soluble polymer with a siloxane structure, said polymer with siloxane structure consisting of a diorganopolysiloxane containing in its molecule at least one unit of formula: ##STR20##in whichR' denotes a saturated or unsaturated C.sub.1 -C.sub.30 hydrocarbon group, a halogenated C.sub.1 -C.sub.8 hydrocarbon group or a trimethylsilyloxy group;a=1 or 2;X=--A--Ywhere A represents a divalent aliphatic or aromatic hydrocarbon radical containing at least 2 carbon atoms and optionally containing one or more oxygen atoms, andY represents the residue of an ultraviolet radiation-screening molecule, which is a 2-(2'-hydroxyphenyl)benzotriazole residue which is unsubstituted or carrying on one of the aromatic nuclei C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.8 alkenyl, halogen, alkoxy, carboxy, hydroxy or amino substituents.