Aromatic polyimide, polyester and polyamide separation membranes

Details Aromatic polyimide, polyester and polyamide separation membranes Aromatic polyimide, polyester and polyamide separation membranes

1976-05-18

1980-07-29

Spear, Jr., Frank A.

Gas separation

Means within gas stream for conducting concentrate to collector

55158, 210 23H, 210500M, B01D 5322, B01D 3100

Patent

active

RE0303518

ABSTRACT:
Gas separation membranes are made from aromatic polyimides, polyesters and polyamides in which the repeating unit of the main polymer chain

REFERENCES:
patent: 3228877 (1966-01-01), Mahon
patent: 3423491 (1969-01-01), McLain et al.
patent: 3567632 (1971-03-01), Richter et al.
patent: 3686116 (1972-08-01), Rio
patent: 3723306 (1973-03-01), Bridgeford
patent: 3744642 (1973-07-01), Scala et al.
patent: 3957651 (1976-05-01), Kesting

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