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:
Jun. 15, 2010
Filed:
Jan. 12, 2005
Howard Matthew Colquhoun, Reading, GB;
Zhixue Zhu, Reading, GB;
William Alexander Mortimore, Cardiff, GB;
Martin Philip Hogarth, Cambridge, GB;
Nadia Michele Walsby, Henley-on-Thames, GB;
Howard Matthew Colquhoun, Reading, GB;
Zhixue Zhu, Reading, GB;
William Alexander Mortimore, Cardiff, GB;
Martin Philip Hogarth, Cambridge, GB;
Nadia Michele Walsby, Henley-on-Thames, GB;
Johnson Matthey Public Limited Company, London, GB;
Abstract
An ion-conducting polymer wherein at least 80% of the repeat units comprise an ion-conducting region and a spacer region is disclosed. The ion-conducting region has an aromatic backbone of one or more aromatic groups, wherein at least one ion-conducting functional group is attached to each aromatic group. The spacer region has an aromatic backbone of at least four aromatic groups, wherein no ion-conducting functional groups are attached to the aromatic backbone. The polymer is suitable for use as a fuel cell membrane, and can be incorporated into membrane electrode assemblies.