To provide fluororesin particles which are useful for a paint composition and combine the long-period weatherability, film formability and solvent resistance, and also have the film hardness suppressed and the phase separation inhibited at the time of heating at elevated temperatures.
The fluororesin particle has a core-shell structure having the three layers of the first layer, the second layer and the third layer, with the first layer being the innermost layer and of a fluorine-based copolymer having a weight-average molecular weight of 500,000 or more, the second layer being a first shell layer and of a fluorine-based copolymer having a weight-average molecular weight of less than 500,000, and the third layer being a second shell layer and of an acrylic-based copolymer; and the aqueous dispersion composition contains the above particles and is useful for paints.
FUWA TSUNEHIKO
FUKITA NOBUO
WADA SUSUMU
KUNIMASA KEIKO
MORI HARUHIKO
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