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Title:
METHOD FOR PRODUCING FLUOROPOLYMER, METHOD FOR PRODUCING POLYTETRAFLUOROETHYLENE, AND COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/244784
Kind Code:
A1
Abstract:
Provided is a fluoropolymer production method that obtains a fluoropolymer by the polymerization of perfluoromonomer in an aqueous medium in the presence of a polymer (1), wherein the content in the fluoropolymer of polymerization units based on the perfluoromonomer is at least 90 mol% with reference to the total polymerization units in the fluoropolymer; the polymer (1) is a polymer of a monomer (1) represented by general formula (1): CF2=CF-O-R-(Rf-SO3M)m; a polymerization unit (1) based on the monomer (1) in the polymer (1) is at least 50 mass% with reference to the total polymerization units in the polymer (1); and the content of the dimer and trimer of the monomer (1) in the polymer (1) is not greater than 1.0 mass% with reference to the polymer (1).

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Inventors:
NANBA YOSHINORI (JP)
TAMAI RINA (JP)
IWASAKA TAKUMA (JP)
TSUCHIYA SOUSHI (JP)
ICHIKAWA KENJI (JP)
KATO TAKETO (JP)
IRIE MASAKI (JP)
YAMANAKA TAKU (JP)
Application Number:
PCT/JP2022/020583
Publication Date:
November 24, 2022
Filing Date:
May 17, 2022
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
C08F261/06; C08F2/44; C08F16/30; C08L27/12; C08L29/10
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Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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