Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 26, 2011
Patent Application Number
12197374
Date Filed
August 25, 2008
Patent Primary Examiner
Patent abstract
A method for making a polysulfone having zwitterionic functionality comprising reacting a piperazine amine functionalized polysulfone with sultone is described as are blends with other polymers. Membranes containing polysulfones having zwitterionic functionality are also provided. Membranes thus formed are used in hemodialysis, hemofiltration, and water purification.
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