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:
Aug. 02, 2011
Filed:
Mar. 17, 2010
Timothy J. Fuller, Pittsford, NY (US);
Sean M Mackinnon, Fairport, NY (US);
Michael R. Schoeneweiss, W. Henrietta, NY (US);
Timothy J. Fuller, Pittsford, NY (US);
Sean M MacKinnon, Fairport, NY (US);
Michael R. Schoeneweiss, W. Henrietta, NY (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of forming an ionomeric membrane includes a step of reacting a first polymer in chlorosulfonic acid to form a first precipitate. The first precipitate comprising a polymer including a polymer unit having at least one —SOCl moiety attached thereto and includes a step of dissolving the first precipitate in a polar aprotic solvent to form the first solution. A polymeric membrane is then formed from the first solution such that the membrane includes the polymer unit having at least one —SOCl. The polymer including a polymer unit a polymer unit having at least one —SOCl is then reacted with a nucleophilic compound to form the polymeric membrane.