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. 20, 2024
Filed:
Sep. 09, 2020
Applicant:
Compact Membrane Systems, Inc., Newport, DE (US);
Inventors:
Robert Daniel Lousenberg, Wilmington, DE (US);
Andrew Edward Feiring, Wilmington, DE (US);
Assignee:
Compact Membrane Systems, Inc., Newport, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 216/14 (2006.01); B01D 71/44 (2006.01); H01M 8/1004 (2016.01);
U.S. Cl.
CPC ...
C08F 216/1408 (2013.01); B01D 71/44 (2013.01); H01M 8/1004 (2013.01);
Abstract
Novel copolymers that are fluoropolymers including a first repeat unit that is fluorinated and cyclic and a second repeat unit from a trifluorovinyl methylene ether monomer having sulfur or sulfone functionality in the pendant group are disclosed. The copolymers have relatively high gas permeability as a result of a cyclic repeat unit in the copolymer backbone and ionomers from oxidation of the sulfur containing functionality are particularity useful in the cathode structure of a proton exchange membrane fuel cell.