Composite membranes, their manufacture and their use

Details Composite membranes, their manufacture and their use Composite membranes, their manufacture and their use

B - Operations, Transporting

01

D

183/1, 117/88.5

B01D 53/22 (2006.01) B01D 67/00 (2006.01) B01D 71/48 (2006.01) C08G 63/193 (2006.01)

Patent

CA 1321931

- 41 - IMPROVED COMPOSITE MEMBRANES, THEIR MANUFACTURE AND THEIR USE ABSTRACT OF THE DISCLOSURE The present invention is directed to composite membranes having a separation layer comprised of at least one poly(tetramethyl) bisphenol A phthalate resulting in enhanced separation and permeating characteristics. Processes for making these composite membranes and the methods of using them for gas separations are also disclosed. D-15669

582009

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