Title:
MANUFACTURING METHOD OF STRETCHED POROUS FILM AND FUEL CELL
Document Type and Number:
Japanese Patent JP2006224305
Kind Code:
A
Abstract:
To provide a manufacturing method of a stretched porous film capable of obtaining the stretched porous film improved in uniformity by precisely classifying paste containing a resin powder by a simple method.
The manufacturing method of the stretched porous film containing a resin includes a process for vibrating the paste containing the resin powder on a sieving net by a sonic wave to classify the same and a process for extruding the classified powder to mold the same and stretching the molded powder to form the stretched porous film.
Inventors:
TOKUDA KENICHI
Application Number:
JP2005037109A
Publication Date:
August 31, 2006
Filing Date:
February 15, 2005
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
B29C55/02; B29B13/10; B29C67/20; H01M8/02; B29K27/18; B29K105/04; B29L7/00; B29L31/14; C08J9/00; H01M8/10
Attorney, Agent or Firm:
Kenji Yoshida
Jun Ishida
Jun Ishida
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