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Polyimide amic acid salts and polyimide membranes formed therefrom

United States Patent

April 6, 2004
View the Complete Patent at the US Patent & Trademark Office
The invention relates to preparation and uses of novel polymeric materials, polyimide amic acid salts (PIAAS). The use of these materials for the fabrication of fluid separation membranes is further disclosed.
Ding; Yong (Norwood, MA), Bikson; Benjamin (Brookline, MA), Nelson; Joyce Katz (Lexington, MA), Macheras; James Timothy (Quincy, MA)
Praxair Technology, Inc. (Danbury, CT)
10/ 350,230
January 23, 2003
This invention was made with government support under Contract No. DE-FC26-99FT40497 awarded by the U.S. Department of Energy. The government has certain rights in the invention.