A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 8/04 (2006.01) A61K 8/365 (2006.01) A61K 8/60 (2006.01) A61K 8/67 (2006.01) A61K 8/81 (2006.01) A61Q 19/00 (2006.01)
Patent
CA 2368334
The invention relates to cosmetic or pharmaceutical composition comprising an oil-containing biliquid foam dis-persed in a salt-containing aqueous phase, in which the aqueous phase, having a pH of less than about 7, is gelled by a polymeric sulfonic acid. A particularly preferred gellant is ammonium poly(acryldimethyltauramide-covinylformamide). Unlike many other types of gels, these gels are stable at an acid pH in the presence of substantial amounts of electrolytes, and therefore are useful in delivering acidic active components.
L'invention concerne une composition cosmétique ou pharmaceutique comprenant une mousse à deux liquides contenant de l'huile dispersée dans un phase aqueuse contenant du sel, dans laquelle la phase aqueuse, qui possède un pH inférieur à environ 7, est transformée en gel par un acide sulfonique polymère. Un gélifiant préféré est le poly(acryldiméthyltauramide-covinylformamide) d'ammonium. A la différence de nombreux autres types de gels, les gels de l'invention sont stables dans les cas d'un pH acide en présence de quantités importantes d'électrolytes et sont de ce fait utiles pour administrer des composants acides actifs.
Harrison James T.
Knight E. Althea
Matathia Michelle
Zecchino Jules
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Color Access Inc.
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