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US 10,537,860 B2Granted
Emulsions by condensation
AssigneeMassachusetts Institute of Technology
InventorsSushant Anand, Seyed Reza Mahmoudi, Ingrid Fuller Guha, Kripa Kiran Varanasi
Life of this patent
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Abstract
Nanoscale emulsions can be made by means of condensing a liquid vapor onto another liquid. The precise size, chemical composition, and density of emulsions may be controlled through varying the experimental parameters, such as surfactant concentration, time of condensation, humidity, and temperature.
Claims29
A method of making an emulsion comprising:
- vaporizing a primary liquid;
- selecting a secondary liquid and an emulsifier to permit formation of an emulsion, wherein the primary liquid and the secondary liquid are immiscible or partly miscible and the emulsifier concentration is larger than its minimum critical concentration;
- and
- forming a mixture of the primary liquid, the secondary liquid and the emulsifier under thermodynamic conditions that are below the dew point of the primary liquid, and
- subcooling the second liquid below the dew point of the vapor of the secondary liquid.
2 more elements
A method of making an emulsion comprising:
- vaporizing a primary liquid;
- selecting a secondary liquid and an emulsifier to permit formation of an emulsion, wherein the primary liquid and the secondary liquid are immiscible or partly miscible and the emulsifier concentration is larger than its minimum critical concentration;
- and
- forming a mixture of the primary liquid, the secondary liquid and the emulsifier under thermodynamic conditions that are below the dew point of the primary liquid, further comprising vaporizing the emulsion and thereafter condensing the emulsion on a tertiary liquid.
1 more element
A method of making an emulsion comprising:
- vaporizing a primary liquid;
- selecting a secondary liquid, a tertiary liquid and an emulsifier to permit formation of an emulsion, wherein the primary liquid and the secondary liquid are immiscible;
- subcooling the primary liquid below the dew point of the vapor of the secondary liquid and
- condensing the primary liquid on a mixture of the secondary liquid and the tertiary liquid, wherein the secondary liquid is miscible with the tertiary liquid and the tertiary liquid is immiscible with the primary liquid.
1 more element
Dependencies are inferred from the claim text.