| abstract |
PROBLEM TO BE SOLVED: To provide a fluororesin particle which is useful as a coating composition, has both long-term weather resistance, film formability and solvent resistance, and further suppresses the hardness of a coating film and the phase separation during heating at a high temperature. I do. SOLUTION: The fluororesin particles having a three-layer core-shell structure of a first layer, a second layer, and a third layer, wherein the first layer is a core of the innermost layer and has a weight average molecular weight of 500,000 or more. The second layer is a first shell layer, a fluorine-based copolymer having a weight average molecular weight of less than 500,000, and the third layer is a second shell, which is made of an acrylic polymer. Fluororesin particles, and aqueous dispersion compositions useful for coatings containing the particles. |