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:
Oct. 01, 2019
Filed:
Oct. 30, 2017
Uop Llc, Des Plaines, IL (US);
Chunqing Liu, Arlington Heights, IL (US);
Howie Q. Tran, Skokie, IL (US);
Other;
Abstract
This invention discloses a membrane composition, a method of making, and applications for a new type of high selectivity, high plasticization-resistant and solvent-resistant, both chemically and UV cross-linked polyimide membranes. Gas permeation tests on these membranes demonstrated that they not only showed high selectivities, but also showed extremely high COplasticization resistance under COpressure up to 4923 kPa (700 psig). This new type of high selectivity, high plasticization-resistant and solvent-resistant, both chemically and UV cross-linked polyimide membranes can be used for a wide range of gas separations such as separations of H/CH, He/CH, CO/CH, CO/N, olefin/paraffin separations (e.g. propylene/propane separation), O/N, iso/normal paraffins, polar molecules such as HO, HS, and NHmixtures with CH, N, H, and other light gases separations. The membranes can also be used for liquid separations such as in the removal of organic compounds from water.