The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 2006
Filed:
Dec. 20, 2002
Wenli Han, Weston, FL (US);
Martin Ketterer, Apex, NC (US);
Jonnie Lee, Pembroke Pines, FL (US);
Thanh Nguyen, Pembroke Pines, FL (US);
George Washington, Miramar, FL (US);
Delores Jordan, Miami, FL (US);
Dibyendu DE, Pembroke Pines, FL (US);
Wenli Han, Weston, FL (US);
Martin Ketterer, Apex, NC (US);
Jonnie Lee, Pembroke Pines, FL (US);
Thanh Nguyen, Pembroke Pines, FL (US);
George Washington, Miramar, FL (US);
Delores Jordan, Miami, FL (US);
Dibyendu De, Pembroke Pines, FL (US);
Baxter International Inc., Deerfield, IL (US);
Baxter Healthare S.A., Zurich, CH;
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.