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US 6,369,121 B1Granted
Apparatus and process for in-line preparation of HIPEs
AssigneeThe Procter & Gamble Company
InventorsVincenzo Catalfamo, Thomas Michael Shiveley, Gina Lynn Blum, Paul Martin Lipic, Thomas Allen DesMarais
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Abstract
A method of making high internal phase emulsions is described. The method forms high internal phase emulsion (HIPE) using a single pass through the static mixer. In alternative embodiments, the HIPE may be further processed to farther modify the size of dispersed phase droplets, to incorporate additional materials into the HIPE, to alter emulsion temperature, and the like.
Claims11
A method for continuous, one-through production of a high internal phase emulsion, the method comprising the steps of:
- a) providing a first phase;
- b) providing a second phase, wherein said second phase is substantially immiscible with said first phase and the ratio of said first phase to said second phase is between about 2:1 and about 250:1;
- c) processing said first and second phases using a first static mixer, having at least one segment, in a single pass so as to provide sufficient shear without the use of rotating elements to emulsify said first phase in said second phase creating said high internal phase emulsion (HIPE) having a internal phase size distribution with a mean particle size.
Dependencies are inferred from the claim text.