Method of producing fluoropolymer
AssigneeDaikin Industries, Ltd.
InventorsMarina Nakano, Masahiro Higashi, Sumi Ishihara, Yosuke Kishikawa
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Abstract
Provided is a method for producing a fluoropolymer, the method including a polymerizing step of polymerizing tetrafluoroethylene in an aqueous medium in the presence of an initiator, a chain transfer agent, and a surfactant to provide a fluoropolymer containing more than 80 mol % of a polymerized unit based on tetrafluoroethylene, the chain transfer agent including at least one selected from the group consisting of a dithioester compound, a dithiocarbamate compound, a trithiocarbonate compound, and a xanthate compound. Also provided is a fluoropolymer represented by the formula Af-CRP defined in the description.
Claims8
A method for producing a fluoropolymer, the method comprising:
- a polymerizing step of polymerizing tetrafluoroethylene in an aqueous medium in the presence of an initiator, a chain transfer agent, and a surfactant to provide a fluoropolymer containing more than 92 mol % of a polymerized unit based on tetrafluoroethylene,
- the chain transfer agent including at least one selected from the group consisting of a dithioester compound, a dithiocarbamate compound, a trithiocarbonate compound, and a xanthate compound,
- wherein the fluoropolymer further contains a polymerized unit based on a monomer other than tetrafluoroethylene.
Dependencies are inferred from the claim text.