	US 12,454,584 B2
	Method of producing resin particles and method of producing electrostatic charge image developing toner
Daisuke Tomita, Kanagawa (JP); Tsutomu Furuta, Kanagawa (JP); and Daisuke Ishizuka, Kanagawa (JP)
Assigned to FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed by FUJIFILM Business Innovation Corp., Tokyo (JP)
Filed on Jan. 17, 2022, as Appl. No. 17/577,344.
Claims priority of application No. 2021-157559 (JP), filed on Sep. 28, 2021.
Prior Publication US 2023/0098401 A1, Mar. 30, 2023
Int. Cl. C08F 2/26 (2006.01); C08F 212/08 (2006.01); C08F 220/18 (2006.01); G03G 9/08 (2006.01); G03G 9/087 (2006.01); G03G 9/09 (2006.01); G03G 9/097 (2006.01)

CPC C08F 2/26 (2013.01) [C08F 212/08 (2013.01); C08F 220/1804 (2020.02); G03G 9/0806 (2013.01); G03G 9/0819 (2013.01); G03G 9/08711 (2013.01); G03G 9/08755 (2013.01); G03G 9/08782 (2013.01); G03G 9/09 (2013.01); G03G 9/09725 (2013.01)]

14 Claims

1. A method of producing resin particles comprising:

a first step of adding a monomer-containing emulsified liquid that contains a polymerizable monomer and an aqueous medium to an aqueous mother medium to polymerize the polymerizable monomer,

a second step of adding an aqueous medium for cooling to the aqueous mother medium after completion of the addition of the monomer-containing emulsified liquid to the aqueous mother medium, and

a third step of heating the aqueous mother medium after a completion of the adding of the aqueous medium for cooling in the second step.