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:
Mar. 01, 2011
Filed:
Aug. 25, 2008
Sean M Mackinnon, West Henrietta, NY (US);
Timothy J. Fuller, Pittsford, NY (US);
Frank Coms, Fairport, NY (US);
Michael R. Schoeneweiss, W. Henrietta, NY (US);
Sean M MacKinnon, West Henrietta, NY (US);
Timothy J. Fuller, Pittsford, NY (US);
Frank Coms, Fairport, NY (US);
Michael R. Schoeneweiss, W. Henrietta, NY (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A proton conductive graft polymer comprises at least a structure unit of a sulfonated polymer side chain covalently attached to a hydrophobic perfluorocyclobutane polymer main chain. The sulfonated condensation polymer side chain has a high local ion exchange capacity while the main polymer chain is substantially free of sulfonic acid group. A membrane made from the graft polymer can provide good mechanical properties and high proton conductivity at wide range of humidity and temperatures.