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.

Date of Patent:
Oct. 24, 2006

Filed:

Mar. 21, 2001
Applicants:

Mark Andrews, Preston, GB;

Richard F. Bridges, Poulton le Fylde, GB;

Peter Charnock, Poulton le Flyde, GB;

John N Devine, Poulton le Fylde, GB;

David J. Kemmish, Preston, GB;

John E Lockley, Lancaster, GB;

Brian Wilson, Garstang, GB;

Inventors:

Mark Andrews, Preston, GB;

Richard F. Bridges, Poulton le Fylde, GB;

Peter Charnock, Poulton le Flyde, GB;

John N Devine, Poulton le Fylde, GB;

David J. Kemmish, Preston, GB;

John E Lockley, Lancaster, GB;

Brian Wilson, Garstang, GB;

Assignee:

Victrex Manufacturing Limited, Thornton Cleveleys, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 283/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of preparing an ion-conducting material, for example membrane, having reduced sensitivity to water includes a step of treating an ion-conducting polymeric material (especially a sulphonated polyaryletherketone and/or sulphone) which has at least some crystallinity or which is crystallizable with a means to increase its crystallinity. The ion-conducting material prepared may be used in a Membrane Electrode Assembly of a fuel cell.


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