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Title:
末端処理されたフッ化ビニリデン系エラストマーの製造方法
Document Type and Number:
Japanese Patent JP5219163
Kind Code:
B2
Abstract:
The present invention provides a preparation process for converting to a vinylidene fluoride elastomer having a group having sulfinic acid, sulfinic acid derivative, sulfonic acid or sulfonic acid derivative at one end or both ends of its trunk chain, and the preparation process provides a vinylidene fluoride elastomer having, at one end or both ends of its trunk chain, end groups represented by the formula: —CR1R2—CR3R4—SO2H, wherein R1 to R4 may be the same or different and each is hydrogen atom or fluorine atom, by allowing a vinylidene fluoride elastomer having, at one end or both ends of its trunk chain, end groups represented by the formula: —CR1R2—CR3R4—X1, wherein R1 to R4 are as defined above, X1 is bromine atom or iodine atom, to react with a sulfur compound represented by the formula: (M1)nH2-nS2O4, wherein M1 is a monovalent or divalent metal ion or ammonium ion, n is an integer of 0 to 2.

Inventors:
Yuzo Komatsu
Haruhiko Mouri
Hiroshi Aoyama
Takanori Fukushima
Takuzo Aida
Application Number:
JP2009550516A
Publication Date:
June 26, 2013
Filing Date:
January 20, 2009
Export Citation:
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Assignee:
Daikin Industries, Ltd.
National University Corporation Tokyo University
International Classes:
C08F8/34; C08F8/20; C08F8/44; C08F14/22
Domestic Patent References:
JPS5657811A1981-05-20
JP2002528433A2002-09-03
JP2005307026A2005-11-04
JPS5127889A1976-03-09
JPH10298386A1998-11-10
JP2006307051A2006-11-09
JP2005048121A2005-02-24
Foreign References:
WO2007089017A12007-08-09
Other References:
JPN6013004256; B. Ameduri, et al.: 'Use of telechelic fluorinated diiodides to abtain well-defined fluoropolymers' Journal of Fluorine Chemistry Vol. 100, 1999, p.97-116
JPN6013004258; Peter J.H. Scott, et al.: 'A general method for the preparation of perfluoroalkanesulfonyl chloraides' Journal of Fluorine Chemistry Vol.126, 2005, p.1196-1201
Attorney, Agent or Firm:
Atomi International Patent Office



 
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