Preparing cellulose ester membranes for gas separation

Details Preparing cellulose ester membranes for gas separation Preparing cellulose ester membranes for gas separation

1989-01-23

1991-04-30

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

264561, 264200, 264203, 264207, 2642091, 26421111, 26421115, 26421116, 26421119, 55 16, B29C 6720, D01F 202

Patent

active

050116371

ABSTRACT:
This invention relates to a novel composition useful for preparing a semi-permeable cellulose ester gas separation membrane, which composition includes a mixture of a cellulose ester, a solvent selected from the group consisting essentially of glycerol acetate, glycerol diacetate, glycerol triacetate, and mixtures thereof, and optionally the non-solvent glycerol. This invention also relates to a process of fabricating a cellulose ester gas separation membrane from said composition.

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