Title:
METHOD FOR PRODUCING FLUOROPOLYMER, METHOD FOR PRODUCING POLYTETRAFLUOROETHYLENE, METHOD FOR PRODUCING PERFLUOROELASTOMER, AND COMPOSITION
Document Type and Number:
Japanese Patent JP2023158062
Kind Code:
A
Abstract:
To provide a production method by which a fluoropolymer substantially free from dimers and trimers of a monomer constituting a polymer used in polymerization of a fluoromonomer can be produced.SOLUTION: A method for producing a fluoropolymer includes polymerizing a fluoromonomer in an aqueous medium in the presence of a polymer (1) to obtain a fluoropolymer, where the polymer (1) is a polymer of a monomer (1) represented by the general formula (1) defined by CF2=CF-R-CZ1Z2-A0 (where R is a linking group; Z1 and Z2 are each independently F or CF3; and A0 is an anionic group), in which the content of a dimer and a trimer of the monomer (1) is 1.0 mass% or less based on the polymer (1).SELECTED DRAWING: None
Inventors:
NANBA YOSHINORI
KATO TAKETO
ICHIKAWA KENJI
TSUCHIYA SOJI
YUASA SOTA
KISHIKAWA YOSUKE
AZUMA MASAHIRO
IRIE MASAKI
YAMANAKA HIROSHI
KATO TAKETO
ICHIKAWA KENJI
TSUCHIYA SOJI
YUASA SOTA
KISHIKAWA YOSUKE
AZUMA MASAHIRO
IRIE MASAKI
YAMANAKA HIROSHI
Application Number:
JP2023143522A
Publication Date:
October 26, 2023
Filing Date:
September 05, 2023
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
C08L27/12; C08F2/44; C08F14/18; C08F259/08
Attorney, Agent or Firm:
Patent Attorney Corporation Tokoshie Patent Office
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