3925211 is referenced by 27 patents and cites 5 patents.

The present invention relates to semipermeable asymmetric membranes and to a process for preparing them. These membranes are especially suitable for use in ultrafiltration and reverse osmosis.

Title
Polyimide membrane and process for making same
Application Number
05/458,483
Publication Number
3925211
Application Date
April 8, 1974
Publication Date
December 9, 1975
Inventor
Strathmann Heinrich
Schumann Wilhelm
Agent
Kehoe Andrew F
McKenna John F
Cesari Robert A
Assignee
Forschungsinstitut Bergof
IPC
B01D 31/00
C08G 73/10
C08G 73/00
B01D 71/64
B01D 71/00
View Original Source