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Title:
METHOD FOR PRODUCING FLUORINE-CONTAINING POLYMER AND METHOD FOR PRODUCING FLUORINE-CONTAINING ION-EXCHANGE POLYMER
Document Type and Number:
WIPO Patent Application WO/2019/221243
Kind Code:
A1
Abstract:
Provided is a method for producing a fluorine-containing polymer in which it is possible to efficiently and easily control to a suitable molecular weight when polymerizing a perfluoro monomer having a dioxolane ring that includes a polymerizable double bond in the ring skeleton, and in which the resulting fluorine-containing polymer does not tend to decrease in molecular weight even upon contact with a base. A method for producing a fluorine-containing polymer, the method comprising polymerizing a raw-material mixture that contains a monomer composition M11 containing a perfluoro monomer represented by formula m11 and a fluorine-containing monomer m11H obtained by substituting at least some of the fluorine atoms of the perfluoro monomer with hydrogen atoms, and/or a monomer composition M12 containing a perfluoro monomer represented by formula m12 and a fluorine-containing monomer m12H obtained by substituting at least some of the fluorine atoms of the perfluoro monomer with hydrogen atoms, wherein the total amount of the fluorine-containing monomer m11H and the fluorine-containing monomer m12H is 10-1,100 ppm relative to the total amount of the monomer composition M11 and the monomer composition M12.

Inventors:
SAITO SUSUMU (JP)
HOMMURA SATORU (JP)
WATABE HIROYUKI (JP)
Application Number:
PCT/JP2019/019567
Publication Date:
November 21, 2019
Filing Date:
May 16, 2019
Export Citation:
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Assignee:
AGC INC (JP)
International Classes:
C08F34/02
Domestic Patent References:
WO2018062193A12018-04-05
WO2017033776A12017-03-02
WO2015002008A12015-01-08
WO2013157395A12013-10-24
WO2003037885A12003-05-08
WO2007013533A12007-02-01
WO2000056694A12000-09-28
WO2011013578A12011-02-03
WO2017033685A12017-03-02
Foreign References:
JP2010509444A2010-03-25
JP4032738B22008-01-16
JPH0692957A1994-04-05
JP2006152249A2006-06-15
JP2005314388A2005-11-10
JP2009040909A2009-02-26
JP2008202039A2008-09-04
US4358412A1982-11-09
US2925424A1960-02-16
US3865845A1975-02-11
JP2018096465A2018-06-21
Other References:
MACROMOLECULE, vol. 26, no. 22, 1993, pages 5829 - 5834
"Du Pont Innovation", vol. 43, 1973, pages: 10
SERIYA KHIMICHESKAYA, IZVESTIYA AKADEMII NAUK SSSR, vol. 4, 1989, pages 938 - 42
JOURNAL OF FLUORINE CHEMISTRY, vol. 9, 1977, pages 359 - 375
See also references of EP 3795598A4
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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