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US 3,997,467 AGranted
Foam forming composition
AssigneePharmacia Aktiebolag
InventorGustaf Lennart Jederstrom
Life of this patent
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Abstract
A foam forming composition consisting of a mixture of a hydrocarbon and/or a lipophilic hydrocarbon derivative, water, a liquified propellant and a surface active agent or mixture of such agents in such proportions as to obtain a mesomorphic phase, the surface active agent or agents being soluble in the water and the hydrocarbon and/or the lipophilic hydrocarbon derivative.
Claims11
A composition for forming foam, consisting essentially of a mixture of:
- 1. at least one member selected from the group consisting of p-xylene, 1-decanol, oleic acid, cholesterol, butanol and caprylic acid,
- 2. water,
- 3. a liquefied propellant selected from the group consisting of fluoro and chloro substituted alkanes having 1 - 4 carbon atoms, and
- 4. at least one surface active agent selected from the group consisting of 1-amino octane, sodium oleate, decaethylene glycol, sodium caprylate and lecithin,
- in such proportions as to obtain a mesomorphic phase,
- said mesomorphic phase representing at least about 5 percent by weight of the mixture, and
- said propellant being dissolved in the mesomorphic phase in an amount of at least 2 percent by weight of the mixture, and
- said propellant being dissolved in the mesomorphic phase in an amount of at least 2 percent by weight of the mixture.
5 more elements
A composition for forming foam, consisting essentially of a mixture of:
- 1. at least one member selected from the group consisting of p-xylene, 1-decanol, oleic acid, cholesterol, butanol and caprylic acid;
- 2. water,
- 3. a liquefied propellant selected from the group consisting of propane, n-butane, iso-butane, n-pentane, iso-pentanes and n-hexane;
- and
- 4. at least one surface active agent selected from the group consisting of 1-amino octane, sodium oleate, decaethylene glycol, sodium caprylate and lecithin,
- in such proportions as to obtain a mesomorphic phase,
- said mesomorphic phase representing at least about 5 percent by weight of the mixture, and
- said propellant being dissolved in the mesomorphic phase in an amount of at least 2 percent by weight of the mixture.
5 more elements
Dependencies are inferred from the claim text.