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Title:
ALKALI METAL SALT OF PERFLUORO(VINYLOXY POLYETHER) CARBOXYLIC ACID, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2015/104977
Kind Code:
A1
Abstract:
Provided is an alkali metal salt of a perfluoro(vinyl oxypolyether) carboxylic acid, which is represented by the general formula CF2=CF[OCF2CF(CF3)]bO(CF2)aO[CF(CF3)CF2O]cCF(CF3)COOM [I] (M is an alkali metal, and is preferably sodium or potassium, a is an integer between 1 and 6, and is preferably 2, and the value of b+c is an integer between 0 and 6, and is preferably 0 or 1), wherein the alkali metal salt of a perfluoro(vinyl oxypolyether) carboxylic acid is produced by hydrolyzing or solvolyzing, in the presence of an alkali metal hydroxide, an alkyl ester of a perfluoro(vinyl oxypolyether) carboxylic acid, which is represented by the general formula CF2=CF[OCF2CF(CF3)]bO(CF2)aO[CF(CF3)CF2O]cCF(CF3)COOR [II] (R is an alkyl group having 1-12 carbon atoms, a is an integer between 1 and 6, and the value of b+c is an integer between 0 and 6).

Inventors:
KOKIN KEISUKE (JP)
MAEDA MITSURU (JP)
MURAI DAISUKE (JP)
Application Number:
PCT/JP2014/083709
Publication Date:
July 16, 2015
Filing Date:
December 19, 2014
Export Citation:
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Assignee:
UNIMATEC CO LTD (JP)
International Classes:
C07C59/60; C07C27/02; C08F2/24; C08F16/24
Foreign References:
JPH0867795A1996-03-12
JP2007153960A2007-06-21
JP2012117031A2012-06-21
JP3298321B22002-07-02
JPS6049176B21985-10-31
JP3291733B22002-06-10
JPH0380145B21991-12-24
JP4617833B22011-01-26
Other References:
ZHURNAL ORGANICHESKOI KHIMLL, vol. 16, no. 3, 1980, pages 540 - 3
FLUORINE CHEM., vol. 75, 1995, pages 163 - 167
Attorney, Agent or Firm:
YOSHIDA Toshio et al. (JP)
Toshio Yoshida (JP)
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