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公开(公告)号：US20230348636A1
公开(公告)日：2023-11-02
申请号：US18349237
申请日：2023-07-10
发明人： Ranna YAMAZAKI , Taketo KATO , Taku YAMANAKA , Hirotoshi YOSHIDA , Takuya YAMABE , Akiho OGURA
IPC分类号： C08F114/26 , C08F2/26 , C08K5/14 , C08F6/22 , C08F6/20
CPC分类号： C08F114/26 , C08F2/26 , C08K5/14 , C08F6/22 , C08F6/20
摘要： Provided is a fluoropolymer composition production method for producing a fluoropolymer composition containing a fluoropolymer, the method which includes polymerizing a fluoromonomer in a reactor in the presence of a fluorine-containing surfactant, a polymerization initiator, and an aqueous medium to prepare an aqueous dispersion containing a fluoropolymer; after the aqueous dispersion is prepared, removing from the reactor the fluoromonomer remaining in the reactor, or recovering the aqueous dispersion in the reactor and accommodating the aqueous dispersion in a container different from the reactor; adding a radical generator to the aqueous dispersion; and subjecting to a heat treatment the aqueous dispersion comprising the radical generator to give a fluoropolymer composition.
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公开(公告)号：US20230348637A1
公开(公告)日：2023-11-02
申请号：US18349314
申请日：2023-07-10
发明人： Ranna YAMAZAKI , Taketo KATO , Taku YAMANAKA , Hirotoshi YOSHIDA , Takuya YAMABE , Akiho OGURA
IPC分类号： C08F114/26 , C08F2/26 , C08K5/14 , C08F6/22 , C08F6/20
CPC分类号： C08F114/26 , C08F2/26 , C08K5/14 , C08F6/22 , C08F6/20
摘要： A fluoropolymer composition production method for producing a fluoropolymer composition containing a fluoropolymer, the method which includes polymerizing a fluoromonomer in a reactor in the presence of a fluorine-containing surfactant, a polymerization initiator, and an aqueous medium to prepare an aqueous dispersion comprising a fluoropolymer; feeding an inert gas to the reactor; and subjecting to a heat treatment the aqueous dispersion in the reactor to give a fluoropolymer composition, wherein a temperature of the heat treatment is 35° C. or higher and a time of the heat treatment is 15 minutes or more.
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