B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 17/52 (2006.01) A61K 8/06 (2006.01) A61K 8/73 (2006.01) A61K 8/85 (2006.01) A61Q 17/04 (2006.01)
Patent
CA 2230097
The invention involves a fine, stable emulsion of an oily phase in an aqueous phase, containing particles of an ionic polymer. The average size of the emulsified oil globules is no more than 500 nm. The ionic polymer particles are polyesters, specifically polyester polymers of isophtalic and/or sulfo isophtalic acid. The invention also involves a process for stabilizing fluid emulsions, a process for preparing these emulsions, as well as their use in cosmetic and dermatological products, specifically in sun-screen formulations.
L'invention se rapporte à une émulsion d'une phase huileuse dans une phase aqueuse, fine et stable, contenant des particules de polymère ionique, les globules d'huile de l'émulsion ayant une taille moyenne d'au plus 500 nm. Les particules de polymère ionique sont notamment des particules de polyesters, ces polyesters étant plus particulièrement des polymères d'acide isophtalique et/ou sulfoisophtalique. L'invention concerne par ailleurs un procédé de stabilisation d'émulsions fluides, un procédé de préparation de ces émulsions ainsi que leur utilisation dans les domaines cosmétique et dermatologique, et plus particulièrement comme composition de protection solaire.
Hansenne Isabelle
Le Verge Danielle
Legret Sylvie
Simonnet Jean-Thierry
L'oreal
Robic
LandOfFree
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