Method of preparing membranes from blends of polyetherimide and

Details Method of preparing membranes from blends of polyetherimide and Method of preparing membranes from blends of polyetherimide and

1994-04-28

1995-08-22

Spear, Frank

Liquid purification or separation

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21050039, B01D 6908

Patent

active

054437288

ABSTRACT:
Improved fluid separation membranes are prepared from the blends of polyetherimide with phenylindane containing polyimides, wherein the amount of phenylindane containing polyimide in the blend is low. The present invention provides for highly anisotropic membranes particularly useful for gas separation applications and for preparation of composite membranes thereof.

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"Preparation of hollow fiber membranes from polyetherimide for gas separation"Kneifel, et al, Journal of Membrane Science, 65 (1992) pp. 295-307.

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