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:
Dec. 27, 2016
Filed:
Dec. 23, 2014
L'air Liquide, Societe Anonyme Pour L'etude ET Exploitation Des Procedes Georges Claude, Paris, FR;
Georgia Tech Research Corporation, Atlanta, GA (US);
William J. Koros, Atlanta, GA (US);
Shilu Fu, Atlanta, GA (US);
Edgar S. Sanders, Jr., Newark, DE (US);
Sudhir S. Kulkarni, Wilmington, DE (US);
L'Air Liquide Société Anonyme pour l'Étude et l'Exploitation des Procedes Georges Claude, Paris, FR;
Georgia Tech Research Corporation, Atlanta, GA (US);
Abstract
A carbon molecular sieve (CMS) membrane is made by pyrolyzing a film or hollow fiber membrane made of a polyimide polymer or copolymer essentially consisting of repeating units of dianhydride-derived units and diamine-derived units. At least 50% of the dianhydride-derived units are derived from 2,2-bis(3,4-dicarboxyphenyl) hexafluoropropane (6FDA). At least 50% of the diamine-derived units are derived from 2,5-diethyl-6-methyl-1,3-diamino benzene (DETDA).