Method for producing a membrane made of bridged polymer and...

Details Method for producing a membrane made of bridged polymer and... Method for producing a membrane made of bridged polymer and...

2007-06-12

2007-06-12

Fortuna, Ana (Department: 1723)

Liquid purification or separation

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Material

C210S500270, C210S500390, C521S027000, C521S033000, C429S006000, C429S006000, C429S047000, C429S047000, C096S004000

Reexamination Certificate

active

10468988

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.

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patent: 5599639 (1997-02-01), Sansone et al.
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patent: 2005/0074654 (2005-04-01), Kiefer et al.
patent: 2005/0175879 (2005-08-01), Kiefer et al.
patent: 2005/0256296 (2005-11-01), Kiefer et al.
patent: WO 00/44816 (2000-08-01), None

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