Method for the preparation of polybenzimidazole membranes

Details Method for the preparation of polybenzimidazole membranes Method for the preparation of polybenzimidazole membranes

1985-09-23

1987-09-15

Anderson, Philip

Liquid purification or separation

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Material

264 41, C08J 928

Patent

active

046938257

ABSTRACT:
This invention is an improved process for the preparation of polybenzimidazole membranes. When benzyl alcohol is added to a polybenzimidazole casting dope, polybenzimidazole membranes useful in reverse osmosis may be prepared without annealing the membrane.

REFERENCES:
patent: 3720607 (1973-03-01), Brinegar
patent: 3841492 (1974-10-01), Brinegar

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