The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 08, 2017

Filed:

Dec. 15, 2014
Applicants:

Case Western Reserve University, Cleveland, OH (US);

The University of Texas AT Austin, Austin, TX (US);

Inventors:

Eric Baer, Cleveland Heights, OH (US);

Shannon Armstrong, Cleveland Heights, OH (US);

Benny D. Freeman, Austin, TX (US);

Donald R. Paul, Austin, TX (US);

Grant Offord, Austin, TX (US);

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B32B 27/08 (2006.01); B01D 67/00 (2006.01); B01D 71/44 (2006.01); B01D 69/02 (2006.01); B01D 69/12 (2006.01); B01D 69/14 (2006.01); B01D 71/80 (2006.01); B29C 47/00 (2006.01); B29C 47/06 (2006.01); B29C 47/78 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B29C 47/88 (2006.01); B29C 47/90 (2006.01); B01D 71/56 (2006.01); B01D 71/02 (2006.01); B01D 71/26 (2006.01); B01D 71/48 (2006.01); B29K 23/00 (2006.01); B29K 77/00 (2006.01); B29L 9/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B01D 53/228 (2013.01); B01D 67/0027 (2013.01); B01D 69/02 (2013.01); B01D 69/12 (2013.01); B01D 69/148 (2013.01); B01D 71/44 (2013.01); B01D 71/80 (2013.01); B29C 47/0007 (2013.01); B29C 47/0021 (2013.01); B29C 47/06 (2013.01); B29C 47/78 (2013.01); B29C 47/8805 (2013.01); B29C 47/90 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B01D 71/02 (2013.01); B01D 71/26 (2013.01); B01D 71/48 (2013.01); B01D 71/56 (2013.01); B01D 2325/04 (2013.01); B01D 2325/20 (2013.01); B29C 47/904 (2013.01); B29K 2023/12 (2013.01); B29K 2077/00 (2013.01); B29K 2995/0065 (2013.01); B29L 2009/00 (2013.01); B29L 2031/712 (2013.01); B29L 2031/755 (2013.01); B32B 2250/24 (2013.01); B32B 2307/724 (2013.01); B32B 2553/00 (2013.01);
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.


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