Membranes formed from aromatic polyarylates

Gas separation – Means within gas stream for conducting concentrate to collector

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55 68, 55158, 528190, 528191, B01D 5322, B01D 7124

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active

050079450

ABSTRACT:
The present invention is a class of polymeric membranes formed from aromatic polyarylates derived from dicarboxylic acid chlorides and cardo bisphenols having halo substituents on all portions ortho to the hydroxy functions. These polyarylate membranes exhibit high gas permselectivities and are useful in various gas separation applications.

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