Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2011-01-04
2011-01-04
Mulcahy, Peter D. (Department: 1764)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
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.
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Foley & Lardner LLP
Hu Henry
Mulcahy Peter D.
Sumitomo Chemical Company Limited
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