METHOD FOR PRODUCING COMPOSITION CONTAINING FLUORORESIN, AND COMPOSITION CONTAINING FLUORORESIN

WIPO Patent Application WO/2023/210820

A1

Provided is a method for producing a composition containing a fluororesin, the method including polymerizing tetrafluoroethylene in an aqueous medium in the presence of a polymer (I) containing polymer units (I) based on a monomer (I) represented by general formula (I) to thereby obtain a polymer dispersion containing a fluororesin that contains a tetrafluoroethylene unit, coagulating the fluororesin in the polymer dispersion to thereby obtain a coagulated product, and washing the coagulated product to thereby obtain a composition containing the fluororesin, wherein (1) the coagulation is carried out by bringing the fluororesin in the polymer dispersion and an organic solvent into contact with one another, and/or (2) the washing is carried out by bringing the coagulated product and an organic solvent into contact with one another.　Formula (I): CX1X3=CX2R(-CZ1Z2-A0)m (The definition of each symbol in the formula is as set forth in the description.)

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ITO KENGO (JP)
OKUI CHIAKI (JP)
ICHIKAWA KENJI (JP)
KATO TAKETO (JP)

PCT/JP2023/016928

November 02, 2023

April 28, 2023

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DAIKIN IND LTD (JP)

C08F6/22; C08F2/16; C08F2/44; C08F14/26

WO2021100835A1	2021-05-27
WO2009116446A1	2009-09-24
WO2020105650A1	2020-05-28

JP2007099624A	2007-04-19
JP2012513534A	2012-06-14
JP2013545880A	2013-12-26

TOKOSHIE PATENT FIRM (JP)

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