METHOD FOR PRODUCING FLUORINE-CONTAINING POLYMER, AQUEOUS DISPERSION LIQUID OF FLUORINE-CONTAINING POLYMER, AND POLYMER COMPOSITION

To provide a method for producing a fluorinated polymer which does not require an emulsifier as an essential component while an aqueous medium with little environmental burden is used. A method for producing a fluorinated polymer, which comprises polymerizing at least one fluorinated polymer selecte...

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Hauptverfasser: SHIBASAKI, Kosuke, TAGUCHI, Daisuke, FUKUNAGA, Shintaro
Format: Patent
Sprache:eng
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Zusammenfassung:To provide a method for producing a fluorinated polymer which does not require an emulsifier as an essential component while an aqueous medium with little environmental burden is used. A method for producing a fluorinated polymer, which comprises polymerizing at least one fluorinated polymer selected from tetrafluoroethylene, chlorotrifluoroethylene and vinylidene fluoride, in an aqueous medium in the presence of a specific polymer having at least one type of units selected from units based on a compound represented by the formula (1) and units based on a compound represented by the formula (2) to produce a fluorinated polymer (provided that when tetrafluoroethylene is polymerized, tetrafluoroethylene is polymerized so that the content of units based on tetrafluoroethylene in the fluorinated polymer becomes less than 99 mass % to all units in the fluorinated polymer):CXY═CR1-COO-(L-O)n-R2  formula (1):CXY═CR3-(O)m-CH2-Z-R4  formula (2):