Insoluble organic UV screening agents of aryl vinylene ketone type, and cosmetic use thereof
申请人:——
公开号:US20030053966A1
公开(公告)日:2003-03-20
The invention relates to insoluble organic compounds containing one or more aryl vinylene ketone groups, for screening out UV radiation, in the form of fine particles with an average size of between 10 nm and 5 &mgr;m, and also to their use for protecting the skin, the hair or materials that are sensitive to UV radiation. The said compounds may be obtained by a process of grinding coarse particles in the presence of one or more suitable surfactants.
Compositions cosmétiques antisolaires à base d'un mélange synergique de filtres et utilisations
申请人:L'Oréal
公开号:EP2196189A1
公开(公告)日:2010-06-16
L'invention concerne de nouvelles compositions cosmétiques ou dermatologiques à usage topique, en particulier pour la photoprotection de la peau et/ou des cheveux, caractérisées par le fait qu'elles comprennent, dans un support cosmétiquement acceptable, au moins :
(a) à titre de premier filtre un filtre UV organique, insoluble, de taille de particule allant de 10 nm à 5 µm et choisi parmi les filtres UV organiques du type oxalanilide ; du type triazine ; du type amide vinylique ; du type cinnamamide ; du type comportant un ou plusieurs groupements benzazole et/ou benzofuranne, benzothiophène ou du type indole ; du type aryl vinylène cétone ; du type dérivé de phénylène bis-benzoxazinone du type dérivé amide, sulfonamide ou carbamate d'acrylonitrile et
(b) un dérivé de 2-hydroxybenzophénone amino-substitué particulier, à titre de second filtre.
L'invention concerne également leurs applications à la protection de la peau et des cheveux contre les effets du rayonnement ultraviolet.
Use of amphiphilic copolymers to stabilize dispersions of insoluble organic compounds for screening out UVradiation, dispersions stabilized with these copolymers and cosmetic compositions containing them
申请人:L'OREAL
公开号:US20030129151A1
公开(公告)日:2003-07-10
The invention relates to the use of at least one amphiphilic copolymer comprising at least one hydrophilic block and at least one hydrophobic block, to stabilize dispersions of insoluble organic compounds comprising at least one group that absorbs UV radiation, which is in the form of particles with a mean size of between 10 nm and 5 &mgr;m, and also to dispersions stabilized with these amphiphilic copolymers and to cosmetic compositions for topical application, in particular antisun compositions, containing them.
Topically applicable cosmetic/dermatological sunscreen compositions well suited for the enhanced UV-photoprotection of human skin and/or hair contain synergistically UV-A
PPD
-enhancing amounts of (a) particulates of at least one insoluble organic UV-screening agent having a particle size ranging from 10 nm to 5 &mgr;m, and (b) at least one UV-screening amino-substituted 2-hydroxybenzophenone compound having the following structural formula (I):
1
formulated into (c) a topically applicable, cosmetically/dermatologically acceptable vehicle, diluent or carrier therefor.
Use of amphiphilic copolymers to stabilize dispersions of insoluble organic compounds for screening out UV radiation, dispersions stabilized with these copolymers and cosmetic compositions containing them
申请人:Candau Didier
公开号:US20050058612A1
公开(公告)日:2005-03-17
The invention relates to the use of at least one amphiphilic copolymer comprising at least one hydrophilic block and at least one hydrophobic block to stabilize dispersions of insoluble organic compounds comprising at least one group that absorbs UV radiation, which is in the form of particles with a mean size of between 10 nm and 5 μm, and also to dispersions stabilized with these amphiphilic copolymers and to cosmetic compositions for topical application, in particular antisun compositions, containing them.