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:
Jul. 20, 2010
Filed:
Nov. 29, 2006
Chunqing Liu, Schaumburg, IL (US);
Stephen T. Wilson, Libertyville, IL (US);
David A. Lesch, Hoffman Estates, IL (US);
Chunqing Liu, Schaumburg, IL (US);
Stephen T. Wilson, Libertyville, IL (US);
David A. Lesch, Hoffman Estates, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
The present invention is for high performance UV-cross-linked membranes from polymers of intrinsic microporosity (PIMs) and the use of such membranes for separations. More specifically, the invention involves the methods of making UV-cross-linked membranes from PIMs. These membranes were prepared by cross-linking the UV-cross-linkable membranes from PIMs by exposure to UV-radiation. Pure gas permeation test results demonstrate that the UV-cross-linked membranes from PIMs exhibit CO/CHperformance well above the Robeson's polymer upper bound trade-off curve for CO/CHseparation. They have more than doubled selectivity for CO/CHand extremely high permeability of COcompared to the original UV-cross-linkable membranes from PIMs. These membranes also show excellent separation performance for CO/N, H/CH, O/N, and propylene/propane separations. These high performance UV-cross-linked membranes are very useful for gas and liquid separations such as CO/CH, CO/N, H/CH, O/N, olefin/paraffin, deep desulfurization of gasoline and diesel fuels, and ethanol/water separations.