Gas separation membrane
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Date
2017-08-08
Authors
Baer, Eric
Freeman, Benny D.
Armstrong, Shannon
Paul, Donald R.
Offord, Grant
Journal Title
Journal ISSN
Volume Title
Publisher
United States Patent and Trademark Office
Abstract
A method of fabricating a gas separation membrane includes providing a coextruded multilayer film that includes a first polymer layer formed of a first polymer material and a second polymer layer formed of a second polymer material, the first polymer material having a first gas permeability. The coextruded multilayer film is axially oriented such that the second polymer layer has a second gas permeability that is greater than the first gas permeability.