Title:
パーフルオロエラストマーの製造方法および組成物
Document Type and Number:
Japanese Patent JP7368759
Kind Code:
B2
Abstract:
The present disclosure provides a method for producing a perfluoroelastomer, comprising carrying out polymerization of a perfluoromonomer in an aqueous medium in the presence of a polymer (1) to provide a perfluoroelastomer, the polymer (1) containing a polymerized unit (1) derived from a monomer represented by the following general formula (1): CX2=CY (-CZ2-O-Rf-A) (1)wherein X is the same or different and is -H or -F; Y is -H, -F, an alkyl group, or a fluorine-containing alkyl group; Z is the same or different and is -H, -F, an alkyl group, or a fluoroalkyl group; Rf is a fluorine-containing alkylene group having 1 to 40 carbon atoms or a fluorine-containing alkylene group having 2 to 100 carbon atoms and having an ether bond; and A is -COCM, -SO3M, -OSO3M, or -C(CF3)2OM, where M is -H, a metal atom, -NR74, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent and R7 is -H or an organic group, with the proviso that at least one of X, Y, and Z contains a fluorine atom.
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Inventors:
Soji Tsuchiya
Takehito Kato
Masaki Irie
Takehito Kato
Masaki Irie
Application Number:
JP2021544033A
Publication Date:
October 25, 2023
Filing Date:
September 03, 2020
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
C08F14/18; C08F2/44; C08K3/28; C08K5/16; C08K5/57; C08L27/12; C08L29/10
Domestic Patent References:
| JP2005320501A | ||||
| JP2008545873A | ||||
| JP2012513534A | ||||
| JP2009155558A | ||||
| JP2010235667A | ||||
| JP6974784B2 |
Foreign References:
| WO2019065638A1 | ||||
| WO2016204272A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Tokoshie Patent Office