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. 12, 2007
Filed:
Mar. 01, 2002
Applicants:
Oemer Uensal, Mainz, DE;
Joachim Kiefer, Losheim am See, DE;
Inventors:
Oemer Uensal, Mainz, DE;
Joachim Kiefer, Losheim am See, DE;
Assignee:
PEMEAS GmbH, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/00 (2006.01); C08J 5/20 (2006.01); H01M 8/10 (2006.01); H01M 4/96 (2006.01); B01D 53/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
Method for producing a membrane made of bridged polymer and a fuel cell. The present invention relates to a membrane comprising a bridged polymer which is produced by a selected process. The membrane of the invention displays a significantly improved fracture toughness (elongation at break/tensile strength) with virtually unchanged swelling behavior. The membranes of the invention are suitable for producing membrane-electrode units for fuel cells.