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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 (Limited 12-1, Yurakucho 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
梅村　和郎 (〒05 東京都千代田区有楽町一丁目１２番１号　旭硝子株式会社内 Tokyo, 〒1008405, JP)
Application Number:
JP2010/052649
Publication Date:
August 26, 2010
Filing Date:
February 22, 2010
Export Citation:
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Assignee:
ASAHI GLASS COMPANY, LIMITED (12-1, Yurakucho 1-chome Chiyoda-k, Tokyo 05, 〒1008405, JP)
旭硝子株式会社 (〒05 東京都千代田区有楽町一丁目１２番１号 Tokyo, 〒1008405, JP)
UMEMURA, Kazuo (Limited 12-1, Yurakucho 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
International Classes:
C25B13/08; B01J47/12; B29C47/06; B32B27/30; C08J5/22; B29K27/12; B29L9/00
Attorney, Agent or Firm:
SENMYO, Kenji et al. (4th Floor, SIA Kanda Square 17, Kanda-konyacho, Chiyoda-k, Tokyo 35, 〒1010035, JP)
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