07247191 is referenced by 36 patents and cites 34 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 utility
Application Number
11/149683
Publication Number
7247191 (B2)
Application Date
June 10, 2005
Publication Date
July 24, 2007
Inventor
Claudia Staudt Bickel
Heidelberg
DE
Stephen J Miller
San Francisco
CA, US
John Wind
Berkeley
CA, US
David Wallace
Smyrna
GA, US
William J Koros
Atlanta
GA, US
Agent
Richard J Sheridan
Assignee
Chevron U
CA, US
IPC
B01D 71/40
B01D 69/08
B01D 53/22
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