Composite or asymmetric fluorine-containing polyimide membrane,

Details Composite or asymmetric fluorine-containing polyimide membrane, Composite or asymmetric fluorine-containing polyimide membrane,

1992-05-06

1993-01-12

Foelak, Morton

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

55 16, 55158, 427245, 427246, 4283084, 4283066, 4283155, 521 64, B01D 5322, B32B 326

Patent

active

051789400

ABSTRACT:
A composite or asymmetric membrane for separating and concentrating a particular component from a mixture of gases. The asymmetric membrane is of a fluorine-containing aromatic polyimide resin of the 6FDA type. The composite membrane has a thin film of an elastomeric polymer formed on a supporting film of a fluorine-containing aromatic polyimide resin of the 6FDA type.

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