04113628 is referenced by 64 patents and cites 6 patents.

Asymmetric polyimide membranes are prepared from tetracarboxylic acid dianhydrides and diamines. They are semipermeable and useful in the separation of different chemical species by osmosis, dialysis, electrodialysis and reverse osmosis.

Title
Asymmetric polyimide membranes
Application Number
273805
Publication Number
4113628
Application Date
April 15, 1976
Publication Date
September 12, 1978
Inventor
Constance Wright Alegranti
Sao Paulo
BR
Assignee
E I Du Pont de Nemours and Company
DE, US
IPC
B01D 31/00
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