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Title:
CATION-EXCHANGE MEMBRANE, A PRODUCTION METHOD THEREOF, AND AN ELECTROLYTIC CELL UTILIZING SAME
Document Type and Number:
WIPO Patent Application WO/2010/095740
Kind Code:
A1
Abstract:
Disclosed are a production method for a cation-exchange membrane, an electrolytic cell, and said cation-exchange membrane where degradation of membrane strength in the upper portion of an electrolytic cell during long-term use in the electrolytic cell is limited, which can perform electrolysis with good production efficiency, and which can be produced with a simple and economical method. The disclosed cation-exchange membrane is for use in an electrolytic cell, has a rectangular shape with a fixed thickness, and has a layered configuration, which includes a first layer having a sulfonate group-containing fluorine-containing polymer, and a second layer adjacent to the first layer having a carboxyl group-containing fluorine-containing polymer. The aforementioned cation-exchange membrane has a mounting area along one side (or along two facing sides) and a main area outside said mounting area, where the value of the fraction (the thickness of the aforementioned second layer) / (the summed thickness of the aforementioned first layer and the aforementioned second layer) is higher in the aforementioned mounting area than the aforementioned main area.

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Inventors:
UMEMURA KAZUO (JP)
KUSANO HIROMITSU (JP)
Application Number:
PCT/JP2010/052649
Publication Date:
August 26, 2010
Filing Date:
February 22, 2010
Export Citation:
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Assignee:
ASAHI GLASS CO LTD (JP)
UMEMURA KAZUO (JP)
KUSANO HIROMITSU (JP)
International Classes:
C25B9/19; B01J47/12; C25B13/08; B29C48/08; B29C48/305; B29C48/92; B32B27/30; C08J5/22; B29K27/12; B29L9/00
Foreign References:
JPH10330510A1998-12-15
JPH06330369A1994-11-29
JPS62133095A1987-06-16
JPS6333589A1988-02-13
JPH06330369A1994-11-29
JPS6026495B21985-06-24
JPS5675583A1981-06-22
JPS5739185A1982-03-04
JP2009039147A2009-02-26
Other References:
See also references of EP 2400043A4
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
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