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.
Patent No.:
Date of Patent:
Sep. 05, 2017
Filed:
Sep. 26, 2014
Applicant:
Uop Llc, Des Plaines, IL (US);
Inventors:
Chunqing Liu, Arlington Heights, IL (US);
Howie Q. Tran, Skokie, IL (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 77/00 (2006.01); B01D 71/68 (2006.01); B01D 53/22 (2006.01); B01D 67/00 (2006.01); B01D 69/06 (2006.01); B01D 71/64 (2006.01);
U.S. Cl.
CPC ...
B01D 71/68 (2013.01); B01D 53/228 (2013.01); B01D 67/009 (2013.01); B01D 69/06 (2013.01); B01D 71/64 (2013.01); B01D 2323/30 (2013.01); B01D 2323/345 (2013.01); B01D 2325/022 (2013.01); B01D 2325/04 (2013.01);
Abstract
An asymmetric integrally-skinned flat sheet membrane comprising a miscible blend of an aromatic polyethersulfone (PES) polymer and an aromatic polyimide polymer is used for gas separations such as hydrogen purification, separation of hydrogen and methane and to separate other gases and liquids. UV radiation may be applied to the surface of the membrane for improved properties.