Title:
MELT-SPUN POLYSULFONE SEMIPERMEABLE MEMBRANES AND METHODS FOR MAKING THE SAME
Document Type and Number:
WIPO Patent Application WO2004058385
Kind Code:
A9
Abstract:
The present invention provides, inter alia, a composition useful for producing a homogeneous, semipermeable membrane, the composition comprising a polysulfone semipermeable membrane, the polysulfone semipermeable membrane comprising a mixture of: an ultra-high-molecular-weight hydrophilic polymer, a polysulfone compound and a solvent for the polysulfone compound, and the polysulfone semipermeable membrane having a homogeneous structure such that the polysulfone semipermeable membrane has a substantially uniform structure. Another aspect of this invention discloses methods for fabricating semipermeable membranes by homogeneously mixing the composition, melting the composition, and melt-spinning the molten composition. Another aspect of the present invention includes homogeneous, melt-spun, semipermeable membranes useful for liquid separation processes, such as, but not limited to, microfiltration, ultrafiltration, dialysis, and reverse osmosis.
Inventors:
HAN WENLI
KETTERER MARTIN
LEE JONNIE
NGUYEN THANH
WASHINGTON GEORGE
JORDAN DELORES
DE DIBYENDU
KETTERER MARTIN
LEE JONNIE
NGUYEN THANH
WASHINGTON GEORGE
JORDAN DELORES
DE DIBYENDU
Application Number:
PCT/US2003/040499
Publication Date:
November 25, 2004
Filing Date:
December 18, 2003
Export Citation:
Assignee:
BAXTER INT (US)
BAXTER HEALTHCARE SA (CH)
BAXTER HEALTHCARE SA (CH)
International Classes:
A61M1/16; B01D67/00; B01D69/08; B01D71/62; B01D71/68; C08J3/09; (IPC1-7): B01D71/68; B01D71/62; B01D67/00; B01D69/08; C08J3/09
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