High performance membrane
The present invention relates to a method for modifying a porous membrane, comprising steps wherein (a) a porous membrane carrier (A) having an open pore structure is impregnated with a solution (X) comprising a polymer (B-1) in a solvent (X-1) in which the polymer (B-1) is soluble, thus forming a p...
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Main Authors | , , , |
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Format | Patent |
Language | English French German |
Published |
12.08.2009
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention relates to a method for modifying a porous membrane, comprising steps wherein (a) a porous membrane carrier (A) having an open pore structure is impregnated with a solution (X) comprising a polymer (B-1) in a solvent (X-1) in which the polymer (B-1) is soluble, thus forming a porous membrane carrier impregnated with the polymer solution (X), and at least part of the polymer (B-1) comprised by the impregnated solution is precipitated from the solution by quenching with a liquid (Y) comprising a non-solvent (Y-1) for said polymer. The invention also relates to a micro-porous membrane comprising a porous membrane carrier (A) and a polymeric material (B) comprising a polycondensation polymer intimately divided throughout the porous membrane carrier, wherein the polymeric material comprises a polycondensation polymer, as well as to a process for preparing the said membrane and to the use thereof. |
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Bibliography: | Application Number: EP20070022189 |