METHOD FOR PRODUCING FLUORINE-CONTAINING COPOLYMER
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United States of America Patent
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Jan 23, 2025
app pub date -
Sep 30, 2024
filing date -
Sep 30, 2024
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Abstract
A method of producing a fluorine-containing copolymer includes performing suspension polymerization by using monomers including ethylene and tetrafluoroethylene in a polymerization medium including water and a polymerization solvent A that is not compatible with water and that is at least one kind selected from the group consisting of compounds represented by Formulae 1 to 3. In the method, the proportion of water to the polymerization medium is from 10% by volume to 80% by volume, the solubility of the polymerization solvent A to the water at 25° C. is 500 g/L or less, and the solubility of the water to the polymerization solvent A at 25° C. is 500 g/L or less. Descriptions regarding Formulae 1 to 3 are omitted.
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