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. 31, 2018
Filed:
May. 10, 2017
Applicant:
Nissan North America, Inc., Franklin, TN (US);
Inventor:
Rameshwar Yadav, Novi, MI (US);
Assignee:
Nissan North America, Inc., Franklin, TN (US);
Primary Examiner:
Int. Cl.
CPC ...
B01J 39/20 (2006.01); C07C 311/09 (2006.01); C08F 8/36 (2006.01); C08F 8/40 (2006.01); B01J 39/05 (2017.01); C08J 5/22 (2006.01); C07F 9/38 (2006.01); H01M 8/0239 (2016.01);
U.S. Cl.
CPC ...
B01J 39/20 (2013.01); B01J 39/05 (2017.01); C07C 311/09 (2013.01); C07F 9/3873 (2013.01); C08F 8/36 (2013.01); C08F 8/40 (2013.01); C08J 5/225 (2013.01); H01M 8/0239 (2013.01); C08J 2327/22 (2013.01); C08J 2329/10 (2013.01); C08J 2341/00 (2013.01); H01M 2250/20 (2013.01);
Abstract
Multi-acid polymers for use as a fuel cell membrane, for example, have multi-acid monomers that have an imide base and more than two proton conducting groups. The multi-acid polymers are made by reacting a polymer precursor in sulfonyl fluoride or sulfonyl chloride form with a compound with an acid giving group. One example of a multi-acid polymer is: wherein R is one or more units of a non-SOF or non-SOCl portion of a polymer precursor in sulfonyl fluoride or sulfonyl chloride form.