CPC C08L 27/18 (2013.01) [C08F 259/08 (2013.01); C08L 2201/50 (2013.01); C08L 2207/53 (2013.01)] | 5 Claims |
1. A method for producing a core-shell particle, comprising adding a non-fluorine monomer to a perfluoropolymer dispersion and polymerizing the non-fluorine monomer to produce the core-shell particle,
the polymerization being initiated by simultaneously adding the non-fluorine monomer and a polymerization initiator to the perfluoropolymer dispersion,
wherein the core-shell particle comprises a core containing the perfluoropolymer and a shell containing a non-fluorine resin, the core having a periphery coated with the non-fluorine resin at a coverage of 90% or more,
the perfluoropolymer is a polymer containing a polymerized unit based on a perfluoro monomer in an amount of 90 mol % or more relative to all polymerized units,
the shell has a mass of 20 or less and the core has a mass of 80 or more relative to a total mass of the core and the shell of 100,
the core has an average particle size of 50 nm or more, and
the shell has a thickness of 1 to 300 nm.
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