Process for producing a fluorinated copolymer

2012 
Fluorine-containing copolymer, a method of the unreacted monomers and polymerization medium a mixture containing unreacted monomers and polymerization medium can be efficiently collected. Polymerizing a fluorinated monomer and a fluorinated olefin in the polymerization medium with (I) a carboxylic acid functional group or a sulfonic acid functional group, to obtain a fluorine-containing copolymer, a mixture containing unreacted monomers and polymerization medium When the (II) mixture while transferred to a stirred evaporation container continuously or intermittently, and by heating with stirring at during evaporation vessel, evaporated unreacted monomers and polymerization medium recovered process for producing a fluorinated copolymer having a step of.
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