Title:
POLYMER FILM, PROCESS FOR PRODUCING THE SAME, AND UNITED MEMBRANE ELECTRODE ASSEMBLY FOR SOLID POLYMER TYPE FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2004/011535
Kind Code:
A1
Abstract:
A polymer film consisting mainly of an ion-exchange resin and containing melt-formed fluororesin fibers having a fiber diameter of 0.01 to 20 µm, fiber length of 1 µm to 10 mm, and aspect ratio of 5 or higher, e.g., fibers of an ethylene/tetrafluoroethylene copolymer or polyvinylidene fluoride, in an amount of 1 to 40 wt.% based on the whole film. This polymer film is excellent in handleability and in dimensional stability in the state of containing water. A solid polymer type fuel cell which has a united membrane electrode assembly including the polymer film as an electrolyte film has high durability.
Inventors:
HOMMURA SATORU (JP)
Application Number:
PCT/JP2003/009394
Publication Date:
February 05, 2004
Filing Date:
July 24, 2003
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
HOMMURA SATORU (JP)
HOMMURA SATORU (JP)
International Classes:
C08J5/22; (IPC1-7): C08J5/22; C08J7/04; C08L27/12; H01B1/06; H01M8/02; H01M8/10
Foreign References:
| JPS5837030A | 1983-03-04 | |||
| EP0094679A2 | 1983-11-23 | |||
| EP1139472A1 | 2001-10-04 | |||
| JPS6337134A | 1988-02-17 | |||
| JPH06231779A | 1994-08-19 | |||
| JP2002317058A | 2002-10-31 | |||
| JP2003051320A | 2003-02-21 | |||
| JP2003055568A | 2003-02-26 | |||
| JP2003197218A | 2003-07-11 |
Other References:
See also references of EP 1541619A4
Attorney, Agent or Firm:
Senmyo, Kenji (38 Kanda-Higashimatsushitach, Chiyoda-ku Tokyo, JP)
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