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:
Feb. 01, 2022
Filed:
Mar. 05, 2020
Applicant:
Johnson Matthey Fuel Cells Limited, London, GB;
Inventors:
Robert Jeffrey Coleman, Swindon, GB;
Thomas Robertson Ralph, Swindon, GB;
Sam Haig, Bramhall, GB;
Natalia V. Plechkova, Belfast, GB;
Assignee:
Johnson Matthey Fuel Cells Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/24 (2016.01); C08J 3/09 (2006.01); C08J 5/22 (2006.01); H01M 8/1069 (2016.01); H01M 8/1039 (2016.01); H01M 8/1081 (2016.01); H01M 8/008 (2016.01);
U.S. Cl.
CPC ...
H01M 8/24 (2013.01); C08J 3/095 (2013.01); C08J 5/2237 (2013.01); H01M 8/008 (2013.01); H01M 8/1039 (2013.01); H01M 8/1069 (2013.01); H01M 8/1081 (2013.01); C08J 2300/30 (2013.01); C08J 2327/12 (2013.01); Y02P 70/50 (2015.11); Y02W 30/84 (2015.05);
Abstract
A process for the recovery of a perfluorosulphonic acid ionomer from a component comprising a perfluorosulphonic acid ionomer is disclosed, the process comprising immersing the component comprising the perfluorosulphonic acid ionomer in a solvent comprising an aliphatic diol and heating. Also disclosed is the use of the recovered perfluorosulphonic acid ionomer, for example in to prepared a proton conducting membrane or a catalyst ink.