Pressurized device comprising an ultrafine foaming oil-in-water emulsion and use of this emulsion in cleansing and care of skin
AssigneeL'oreal
InventorRaluca Lorant
Life of this patent
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Abstract
A pressurized device comprising an “ultrafine” foaming oil-in-water emulsion wherein the particle size of the oil particles constituting the oil phase ranges from 50 to 1000 nm, the ultrafine emulsion being preferably obtained according to the so-called “phase inversion” technique. These ultrafine oil-in-water emulsions, can be employed in particular for cleansing and care of the skin and they are rich in oils, fluid, pressurizable, foaming and translucent.
Claims23
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) R1—COOR2
- (II) R2OOC—R3—COOR2
- (III) R1—COOR3OOC—R1,
- wherein R1 and R2 denote alkyl groups containing from 1 to 22 carbon atoms or alkene groups containing from 8 to 22 carbon atoms, and R3 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 C3-C16 polyol and a C14-C22 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.
Dependencies are inferred from the claim text.