Methods of preparing a crosslinked fiber membrane
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United States of America Patent
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May 28, 2013
Grant Date -
Mar 1, 2012
app pub date -
Aug 25, 2010
filing date -
Aug 25, 2010
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Abstract
Disclosed herein is a method for preparing a crosslinked hollow fiber membrane. The method involves spinning a one phase solution comprising a monoesterified polyimide polymer, acetone as a volatile solvent, a spinning solvent, a spinning non-solvent, and optionally an organic and/or inorganic additive, wherein the volatile solvent is present in an amount of greater than 25 wt. % to about 50 wt. %, based on the total weight of the solution.
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