Stable Dermatological Aerosol Foams Utilizing Reactive Propellants
First Claim
Patent Images
1. A composition, comprising:
- an emulsion;
a propellant; and
a purge gas,whereinthe emulsion comprises;
water,an emulsifier or surfactant,a moisturizer or emollient,an antioxidant or preservative, andan active agent; and
the propellant is selected from the group consisting of Z-1,2,3,3,3-pentafluoropropene, E-1,2,3,3,3-pentafluoropropene, 1,1,3,3,3-pentafluoropropene, 1,1,2,3,3-pentafluoropropene, 2,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoroprop-1-ene, cis-1,3,3,3-tetrafluoropropene, and 3,3,3-trifluoropropene, and combinations/mixtures thereof.
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Accused Products
Abstract
Described herein are chemically-stabile formulations comprising a reactive propellant. The formulations are delivered as an aerosol foam, and are suitable for topical application. The aerosol propellant may be a hydrofluoroolefin propellant. The emulsions or compositions may comprise reactive active agents, such as peroxides, retinoids, or quinones. Also described are methods of treating skin disorders, comprising the step of applying to an affected area of a subject in need thereof a therapeutically-effective amount of an inventive emulsion or aerosol composition.
74 Citations
23 Claims
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1. A composition, comprising:
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an emulsion; a propellant; and a purge gas, wherein the emulsion comprises; water, an emulsifier or surfactant, a moisturizer or emollient, an antioxidant or preservative, and an active agent; and the propellant is selected from the group consisting of Z-1,2,3,3,3-pentafluoropropene, E-1,2,3,3,3-pentafluoropropene, 1,1,3,3,3-pentafluoropropene, 1,1,2,3,3-pentafluoropropene, 2,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoroprop-1-ene, cis-1,3,3,3-tetrafluoropropene, and 3,3,3-trifluoropropene, and combinations/mixtures thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification