Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Heinz-Joachim Muller0
Daniel Mullette0
Date of Patent
December 15, 2009
0Patent Application Number
117006250
Date Filed
January 31, 2007
0Patent Primary Examiner
Patent abstract
Porous polymeric membranes including HALAR® (poly(ethylene chlorotrifluoroethylene)) and related compounds and the methods of production thereof which avoid the use of toxic solvents. Preferred solvents, coating agents and pore forming agents are citric acid ethyl ester or glycerol triacetate. The membranes may be in the form of a hollow fiber or flat sheet, and may include other agents to modify the properties of the membranes, such as the hydrophilic/hydrophilic balance. Leachable agents may also be incorporated into the membranes.
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