Aqueous emulsion and aersol delivery system using same
AssigneeS. C. Johnson & Son, Inc.
InventorPhillip J. Neumiller
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Abstract
This invention relates to the field of aqueous emulsion systems and the use of such systems for dispensing aerosols from pressurized containers and more particularly to an improved emulsion system which contains vesicle structures that can be used to provide a reservoiring effect for the propellant component of an aerosol delivery system.
Claims15
An improved two-phase system for delivering an aerosol from a pressurized container characterized by a propellant reservoiring effect and comprising from 75% to 98% by weight of an aqueous component and from 25% to 2% by weight of a propellant component, the aqueous component comprising a mixture of a non-ionic surfactant, a C.sub.9 -C.sub.18 primary alcohol, a compound selected from the group consisting of polyhydroxy alcohols, polyhydroxy alcohol esters and mixtures thereof, and an active ingredient, the balance of the aqueous component being water, the propellant component comprising a C.sub.3 -C.sub.5 linear hydrocarbon.
An improved two-phase system for delivering an aerosol from a pressurized container characterized by a propellant reservoiring effect and comprising from 75% to 98% by weight of an aqueous component and from 25% to 2% by weight of a propellant component, the aqueous component comprising a mixture of 0.25% to 6.5% of a fatty acid alkanolamide surfactant, 0.001% to 3.5% of a C.sub.11 primary alcohol, 0.1% to 6% of glycerol and 0.01% to 20% of an organic active ingredient, the balance of the aqueous component being water, the propellant component comprising a mixture of propane and butane.
Dependencies are inferred from the claim text.