Patent ID: 8216760

Claim:
A method for producing resinous particles, comprising: (A) melting a mixture comprising a binder resin and at least one additive having a melting point which is lower than T1/2 of the binder resin, so as to prepare a molten material, where T1/2 denotes a softening point determined in accordance with a 1/2 method; (B) increasing a specific surface of the molten material in an atmosphere having a temperature which is higher than a glass transition temperature of the binder resin, and is lower than 3 times of T1/2 of the binder resin, so as to form a precursor; (C) retaining the precursor in an atmosphere having a temperature which is higher than the glass transition temperature of the binder resin, and is lower than 1.5 times of T1/2 of the binder resin for 1 millisecond to 10 milliseconds; (D) cooling and solidifying the precursor; and (E) atomizing resinous particles from the precursor.