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US 4,382,078 AGranted
Novel water-based, dimethyl ether-propelled aerosol composition
AssigneePolak's Frutal Works B.V.
InventorsHendrik J. Berkhoff, Rudolf Zagt
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Abstract
Water-based aerosol compositions are disclosed which contain dimethylether as propellant and include a block co-polymer of ethylene oxide and propylene oxide as a surfactant to retain the active ingredients in the liquid phase.
Claims5
A water-based, dimethyl ether-propelled aerosol composition consisting essentially of:
- (a) about 0.3 to 5% active ingredients;
- (b) about 15 to 35% dimethyl ether;
- (c) about 1 to 6% surfactant, said surfactant being a block copolymer of ethylene oxide and propylene oxide having the general structural formula ##STR2## wherein x+z is a whole number between about 18 and 200, y is a whole number greater than about 21, and the polyethylene oxide blocks constitute about 20 to 80% of the total molecule by weight;
- and
- (d) the remainder water.
2 more elements
Dependencies are inferred from the claim text.