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:
Apr. 29, 2014
Filed:
Oct. 21, 2011
Chunqing Liu, Schaumburg, IL (US);
Travis C. Bowen, Crystal Lake, IL (US);
Emily G. Harbert, Chicago, IL (US);
Raisa Minkov, Skokie, IL (US);
Syed A. Faheem, Huntley, IL (US);
Zara Osman, Niles, IL (US);
Chunqing Liu, Schaumburg, IL (US);
Travis C. Bowen, Crystal Lake, IL (US);
Emily G. Harbert, Chicago, IL (US);
Raisa Minkov, Skokie, IL (US);
Syed A. Faheem, Huntley, IL (US);
Zara Osman, Niles, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
The present invention discloses a new type of polyimide membrane with high permeances and high selectivities for gas separations and particularly for CO/CHand H/CHseparations. The polyimide membranes have COpermeability of 50 Barrers or higher and single-gas selectivity for CO/CHof 15 or higher at 50° C. under 791 kPa for CO/CHseparation. The polyimide membranes have UV cross-linkable functional groups and can be used for the preparation of UV cross-linked polyimide membranes having COpermeability of 20 Barrers or higher and single-gas selectivity for CO/CHof 35 or higher at 50° C. under 791 kPa for CO/CHseparation.