Patent ID: 6333362
Filing Date: 2001-12-25
Classification: A61K,A61Q,B82Y

Abstract:
An aerosol pressurized device comprising a pressurized receptacle, said receptade containing a propellant gas and a foaming, oil-in-water emulsion, said oil-in-water emulsion comprising:(A) at least one cosmetic oil, wherein said at least one cosmetic oil is an oil of vegetable or animal origin, a silicone oil, a higher fatty acid, a higher fatty alcohol, or mono- or diesters corresponding to formulae (I), (II), or (III):(I) R.sup.1 --COOR.sup.2(II) R.sup.2 OOC--R.sup.3 --COOR.sup.2(III) R.sup.1 --COOR.sup.3 OOC--R.sup.1,wherein R.sup.1 and R.sup.2 denote alkyl groups containing from 1 to 22 carbon atoms or alkene groups containing from 8 to 22 carbon atoms, and R.sup.3 denotes an alkanediyl group containing from 2 to 16 carbon atoms, wherein the mono and diesters contain a total of at least 10 carbon atoms;(B) at least one nonionic emulsifier having an HLB ranging from 9 to 12, wherein said at least one nonionic emulsifier is:(i) an addition product of ethylene oxide and a fatty alcohol containing 6 to 30 carbon atoms, or(ii) an addition product of ethylene oxide and a partial ester of a C.sub.3 -C.sub.16 polyol and a C.sub.14 -C.sub.22 fatty acid;(C) at least one anionic, cationic, nonionic or amphoteric foaming surfactant; wherein said at least one nonionic foaming surfactant is a polyglyceryl alkyl ether or an alkylglucoside; and(D) water,wherein the weight ratio of said at least one cosmetic oil to said at least one foaming surfactant is greater than or equal to 0.5, and the oil phase of said oil-in-water emulsion comprises oil particles having a particle size ranging from 50 to 1000 nm.