Title:
METHOD FOR PRODUCING -SO3H GROUP-CONTAINING FLUOROPOLYMER AND -SO3H GROUP-CONTAINING FLUOROPOLYMER
Document Type and Number:
WIPO Patent Application WO/2007/089017
Kind Code:
A1
Abstract:
Disclosed is a novel method for producing an -SO3H group-containing fluoropolymer wherein sufficient stabilization of an unstable end group can be performed under mild conditions. Specifically disclosed is a method for producing an -SO3H group-containing fluoropolymer, which is characterized in that a fluoropolymer to be processed having a monomer unit containing -SO2X group (wherein X represents F or Cl) is subjected to a process wherein the following steps A, B and C are performed in this order. Step A: a step wherein a halogenating agent is caused to act Step B: a step wherein a decomposing agent is caused to act Step C: a step wherein a fluorinating agent is caused to act
Inventors:
INO TADASHI (JP)
ISAKA TADAHARU (JP)
KONDO MASAHIRO (JP)
IKEDA MASANORI (JP)
UEMATSU NOBUYUKI (JP)
KOGA TAKEHIRO (JP)
ISAKA TADAHARU (JP)
KONDO MASAHIRO (JP)
IKEDA MASANORI (JP)
UEMATSU NOBUYUKI (JP)
KOGA TAKEHIRO (JP)
Application Number:
PCT/JP2007/051947
Publication Date:
August 09, 2007
Filing Date:
February 05, 2007
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
ASAHI KASEI CHEMICALS CORP (JP)
INO TADASHI (JP)
ISAKA TADAHARU (JP)
KONDO MASAHIRO (JP)
IKEDA MASANORI (JP)
UEMATSU NOBUYUKI (JP)
KOGA TAKEHIRO (JP)
ASAHI KASEI CHEMICALS CORP (JP)
INO TADASHI (JP)
ISAKA TADAHARU (JP)
KONDO MASAHIRO (JP)
IKEDA MASANORI (JP)
UEMATSU NOBUYUKI (JP)
KOGA TAKEHIRO (JP)
International Classes:
C08F8/18; C08F214/18; C08J5/22; H01B1/06; H01M8/02; H01M8/10
Domestic Patent References:
| WO2005028522A1 | 2005-03-31 | |||
| WO2004102714A1 | 2004-11-25 | |||
| WO2004066426A1 | 2004-08-05 |
Foreign References:
| JPS4623245B1 | 1971-07-02 | |||
| JP2006299092A | 2006-11-02 | |||
| JPS4623245B1 | 1971-07-02 | |||
| JP2004102714A | 2004-04-02 | |||
| JP2005028522A | 2005-02-03 | |||
| JP2004018673A | 2004-01-22 | |||
| JPH0575835B2 | 1993-10-21 | |||
| JPS53149881A | 1978-12-27 | |||
| JPS6361337A | 1988-03-17 |
Other References:
DENNIS E. CURTIN ET AL., PREPRINTS FOR THE 10TH FUEL CELL SYMPOSIUM, 2003, pages 121
JOURNAL OF APPLIED ELECTROCHEMISTRY, vol. 22, 1992, pages 1 - 7
JOURNAL OF APPLIED ELECTROCHEMISTRY, vol. 22, 1992, pages 1 - 7
Attorney, Agent or Firm:
YASUTOMI, Yasuo et al. (5-36 Miyahara 3-chome, Yodogawa-ku,, Osaka-sh, Osaka03, JP)
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