Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Adam Glen Thomas0
Date of Patent
February 4, 2014
0Patent Application Number
130179980
Date Filed
January 31, 2011
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Hollow fiber membranes, such as those used in air separation modules, are generally made from solution spinning. Typically, solvent is present in the bore of the fiber for the spinning process. This solvent, in addition to the solvent already present in the polymer casting solution, may cause voids in the fiber material. By adding a polycarboxylic acid to the polymer casting material, these voids may be reduced or eliminated.
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