Process for continuously producing polymer electrolyte...

Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation

Reexamination Certificate

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Details

C429S006000, C429S006000, C427S115000, C502S101000, C521S027000

Reexamination Certificate

active

07862921

ABSTRACT:
The present invention provides a process for producing a polymerelectrolyte membrane comprising the steps of coating a solution of a polymerelectrolyte on at least one surface of a porous substrate and laminating the coated porous substrate and a supporting material while applying a tension F (kg/cm) in a range of the following expression (A)in-line-formulae description="In-line Formulae" end="lead"?0.01≦F≦10  (A)in-line-formulae description="In-line Formulae" end="tail"?to the coated porous substrate. According to the present invention, a polymerelectrolyte composite membrane in which wrinkling and the like are suppressed and whose appearance is excellent can be continuously produced.

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Office Action dated Jun. 9, 2009 received in counterpart Japan application.
Office Action dated Jun. 9, 2009 received in counterpart Japan application 2003-157052.
Decision of Refusal dated Nov. 10, 2009 received in counterpart Japan application 2003-090841.

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