Patent ID: 11886144
Assignee: KAO CORPORATION
Field: Optics (Instruments)
Classification: CPC G  C | IPC C  G

Claim 5:
6. A method for producing a toner for developing electrostatic images comprising a binder resin composition, the method comprising adding the binder resin composition to raw materials of the toner, wherein the binder resin composition is prepared by the method comprising:
condensing an acid group-having crystalline resin (C) and a polyalkyleneimine to obtain a resin composition (C-P); and
mixing the resin composition (C-P) and an amorphous resin (A),
wherein the acid group-having crystalline resin (C) is a crystalline polyester-based resin being a polycondensate of an alcohol component (c-al) and a carboxylic acid component (c-ac), in which the alcohol component (c-al) comprises an α,ω-aliphatic diol having 2 to 16 carbon atoms, and the carboxylic acid component (c-ac) comprises an α,ω-aliphatic dicarboxylic acid having 4 to 14 carbon atoms.