05972080 is referenced by 32 patents and cites 19 patents.

Separation membranes excellent in strength, durability, heat resistance and solvent resistance as well as in balance between substance separation properties and substance permeability are disclosed, which are formed from polyhydrazidoimide resins, and preferably comprises a non-porous dense layer formed from a polyhydrazidoimide resin obtained from the reaction of an aromatic tetracarboxylic dianhydride such as 4,4'-(hexafluoroisopropylidene)diphthalic anhydride and an aromatic dihydrazide such as isophthalic dihydrazide as essential components.

Title
Separation membrane
Application Number
8/900705
Publication Number
5972080
Application Date
July 25, 1997
Publication Date
October 26, 1999
Inventor
Yoshitomo Nagata
Chiba
JP
Agent
Armstrong Westerman Hattori McLeland & Naughton
Assignee
Dainippon Ink and Chemicals
JP
IPC
B01D 71/64
B01D 53/22
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