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Claims for Patent: 8,808,716

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Claims for Patent: 8,808,716

Title:Topical foam composition
Abstract: The present invention relates to a novel oil in water emulsion aerosol foam composition containing an active agent for the treatment of various chronic and acute skin conditions, particularly acne and psoriasis; and processes for preparing the emulsion aerosol foam compositions. In particular, the present invention relates to oil in water emulsion aerosol foam compositions containing a retinoid in the oil phase.
Inventor(s): Loupenok; Leon (Rowville, AU)
Assignee: Stiefel Research Australia Pty Ltd (Rowville, Victoria, AU)
Application Number:13/553,849
Patent Claims: 1. An oil in water emulsion aerosol foam composition comprising an oil phase and a water phase, said composition containing an aerosol base comprising: TABLE-US-00013 butylated hydroxytoluene about 0.1% ceteareth 12 about 5% light mineral oil about 6% sorbic acid about 0.4% diisopropyl adipate about 5% tazarotene about 0.1% citric acid about 0.03% potassium citrate about 0.57% water about 82.80%

wherein all percentages are expressed by weight and are based on the total weight of the aerosol base; and a hydrocarbon propellant present in an amount from about 7 to about 8 grams per 100 grams of aerosol base.

2. An oil in water emulsion aerosol foam composition comprising an oil phase and a water phase, said composition containing an aerosol base comprising: TABLE-US-00014 butylated hydroxytoluene about 0.1% ceteareth 12 about 5% light mineral oil about 6% sorbic acid about 0.15% potassium sorbate about 0.2% diisopropyl adipate about 5% tazarotene about 0.1% citric acid about 0.037% potassium citrate about 0.103% water about 83.31%

wherein all percentages are expressed by weight and are based on the total weight of the aerosol base; and a hydrocarbon propellant present in an amount from about 7 to about 8 grams per 100 grams of aerosol base.

3. An oil in water emulsion aerosol foam composition comprising an oil phase and a water phase, said composition containing an aerosol base comprising: TABLE-US-00015 butylated hydroxytoluene about 0.1% ceteareth 12 about 5% light mineral oil about 8% sorbic acid about 0.40% diisopropyl adipate about 7% tazarotene about 0.1% citric acid about 0.03% potassium citrate about 0.54% water about 78.83%

wherein all percentages are expressed by weight and are based on the total weight of the aerosol base; and a hydrocarbon propellant present in an amount from about 7 to about 8 grams per 100 grams of aerosol base.
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