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US 7,452,470 B2Granted
Method of preparing a finely divided emulsion from a crude emulsion
AssigneeBASF SE
InventorsThomas Danner, Hartwig Voβ, Andreas Bauder, Sonja Viereck
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Abstract
A method of preparing a finely divided emulsion from a crude emulsion is proposed where the crude emulsion is forced through a porous membrane, wherein the porous membrane is constructed from two or more superimposed layers which differ in pore diameter.
Claims9
A method of preparing a finely divided emulsion from a crude emulsion, where the crude emulsion is prepared from two immiscible liquid phases and is forced through a porous membrane, wherein the porous membrane is constructed from two or more superimposed layers which differ in their pore diameter,
- one of the superimposed layers is a first coarsely pored layer, and the crude emulsion is forced through the porous membrane from the side of the first coarsely pored layer,
- wherein the finely divided emulsion is prepared from the crude emulsion during the forcing through the porous membrane.
Dependencies are inferred from the claim text.