06932859 is referenced by 28 patents and cites 44 patents.

A composition of and a method of making high performance hollow fiber membranes is described. The membranes have a high resistance to plasticization by use of a predetermined amount of crosslinking. The preferred polymer material for the membrane is a polyimide polymer comprising covalently bonded ester crosslinks. The resultant hollow fiber membrane exhibits a high permeability of CO2 in combination with a high CO2/CH4 selectivity. Another embodiment provides a method of making the hollow fiber membrane from a monesterified polymer followed by final crosslinking after hollow fiber formation.

Title
Crosslinked and crosslinkable hollow fiber membrane and method of making same
Application Number
10/323091
Publication Number
6932859 (B2)
Application Date
December 18, 2002
Publication Date
August 23, 2005
Inventor
Claudia Staudt Bickel
Heidelberg
DE
Stephen J Miller
San Francisco
CA, US
John D Wind
Seattle
WA, US
David Wallace
Dunwoody
GA, US
William J Koros
Atlanta
GA, US
Agent
D M Tuck
Assignee
University of Texas System
TX, US
Chevron USA
CA, US
IPC
B01D 071/40
B01D 069/08
B01D 053/22
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