Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FLUOROPOLYMER AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/107888
Kind Code:
A1
Abstract:
Provided is a method for producing a fluoropolymer in which a fluoropolymer comprising a monomer (I), which is represented by general formula (I), by carrying out polymerization of the monomer (I) in an aqueous medium, and the oxygen concentration in the polymerization reaction system is maintained at 500 volume ppm or less.　General formula (I): CX2=CY–CF2–O–Rf–A (In the formula, X and Y are independently H, F, CH3 or CF3, and at least one of X and Y is F). Rf represents a C1-40 fluorine-containing alkylene group or a C2-100 fluorine-containing alkylene group having an ether bond. A represents –COOM, –SO3M, –OSO3M or –C(CF3)2OM (wherein M represents H, a metal atom, NR7 4, an optionally substituted imidazolium, an optionally substituted pyridinium or an optionally substituted phosphonium; and R7 represents H or an organic group).

Inventors:
HIGASHI MASAHIRO (JP)
YAMATO KENSUKE (JP)
YONEDA SATORU (JP)
ISHIHARA SUMI (JP)
NAKANISHI KANAKO (JP)
KISHIKAWA YOSUKE (JP)
Application Number:
PCT/JP2021/042646
Publication Date:
May 27, 2022
Filing Date:
November 19, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C08F16/24; C08F2/26; C09D5/02; C09D127/14
Domestic Patent References:
WO2019168183A12019-09-06
WO2020218619A12020-10-29
WO2005050320A12005-06-02
WO2005042593A12005-05-12
WO2008060461A12008-05-22
WO2007046377A12007-04-26
WO2007046482A12007-04-26
WO2007046345A12007-04-26
WO2013189824A12013-12-27
WO2013189826A12013-12-27
Foreign References:
JP2017132895A2017-08-03
JPS50116579A1975-09-11
JP2016511320A2016-04-14
JP2005162834A2005-06-23
JP2015113380A2015-06-22
JP2013237802A2013-11-28
JP2008513577A2008-05-01
JP2007249154A2007-09-27
JP2011215546A2011-10-27
JP2006308647A2006-11-09
JP2008545873A2008-12-18
US20070015864A12007-01-18
US20070015865A12007-01-18
US20070015866A12007-01-18
US20070276103A12007-11-29
US20070117914A12007-05-24
US20070142541A12007-06-21
US20080015319A12008-01-17
US3250808A1966-05-10
US3271341A1966-09-06
JP2003119204A2003-04-23
JP2007119526A2007-05-17
US20140228531A12014-08-14
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: ISOLATION BAG

Next Patent: FLUOROPOLYMER AND MANUFACTURING METHOD THEREFOR