Membranes formed from rigid polyarylates

Details Membranes formed from rigid polyarylates Membranes formed from rigid polyarylates

B - Operations, Transporting

01

D

B01D 71/76 (2006.01) B01D 53/22 (2006.01) B01D 71/48 (2006.01) C08G 63/193 (2006.01) C08G 63/682 (2006.01) C08J 9/28 (2006.01)

Patent

CA 2041288

PATENT 211PUS04306 ABSTRACT The present invention is a class of polymeric membranes formed from aromatic polyarylates derived from dicarboxylic acid chlorides and conformationally rigid cyclohexyl bisphenols having halo or methyl substituents on all positions ortho to the hydroxy functions. These polyarylate membranes exhibit high gas permselectivities and are useful in various gas separation applications.

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