A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 8/02 (2006.01) A61K 8/55 (2006.01) A61Q 19/00 (2006.01)
Patent
CA 2698233
A cosmetic or pharmaceutical composition, to be applied topically is described, which has a hydrophilic outer phase, at least one cosmetic and/or pharmaceutical active ingredient and at least one carrier substance for the active ingredient. The carrier substance here forms such structures, which comprises at least two lamellar double membrane layers arranged one over another in the manner of a sandwich, wherein between adjacent double membrane layers, aligned parallel to each other, a layer of an inner phase is respectively arranged. The active ingredient is distributed in the double membrane layer and in the layer of the inner phase such that the layer of the inner phase contains the active ingredient in a concentration range between 2% by weight and 98 % by weight and the double membrane layer contains the active ingredient in a concentration between 98 % by weight and 2% by weight, respectively in relation to the total concentration of active ingredient, and the outer phase has no or almost no active ingredient.
L'invention concerne une composition cosmétique ou pharmaceutique pour application topique, comprenant une phase externe hydrophile, au moins un principe actif cosmétique et/ou pharmaceutique, et au moins une substance support pour le principe actif. La substance support forme des structures comprenant au moins deux couches à double membrane lamellaires, superposées de type sandwich, cependant qu'une couche d'une phase interne est disposée entre des couches à double membrane, adjacentes, parallèles entre elles. Le principe actif est réparti dans la couche à double membrane et dans la couche de la phase interne, de telle façon que la couche de la phase interne renferme 2 à 98% en poids du principe actif, et la couche à double membrane renferme 98 à 2% en poids du principe actif, les pourcentages respectifs se rapportant à la concentration totale en principe actif, la phase externe ne contenant aucun principe actif ou sensiblement aucun principe actif.
Albrecht Martin
Kuhs Gmbh
Moffat & Co.
LandOfFree
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