PRODUCING METHOD OF WATER DISPERSION OF POLYESTER RESIN PARTICLES, RESIN COMPOSITION, PRODUCING ME

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A method of producing a water dispersion of polyester resin particles containing the steps of : emulsifying and dispersing at least a diol, a dicarboxylic acid and at least one polycondensation catalyst selected from a surfactant catalyst and a rare earth metal catalyst in water to form an emulsified dispersion liquid; and irradiating the emulsified dispersion liquid with a microwave to conduct a polycondensation reaction, whereby polyester resin particles are produced.