发明名称 Electrostatic latent image developing toner
摘要 An electrostatic latent image developing toner includes toner particles that each include a toner core containing a binder resin and a shell layer disposed over a surface of the toner core. The binder resin includes a crystalline polyester resin and an amorphous polyester resin. The crystalline polyester resin has a melting point of at least 80° C. and no greater than 120° C. When the electrostatic latent image developing toner is measured using a differential scanning calorimeter, a glass transition point is observed in a first run but is not observed in a second run. The shell layer contains a resin including a thermosetting component and a thermoplastic component.
申请公布号 US9632442(B2) 申请公布日期 2017.04.25
申请号 US201514942488 申请日期 2015.11.16
申请人 KYOCERA Document Solutions Inc. 发明人 Okita Masaki;Nakayama Yukinori;Takemori Toshiki;Mori Takamichi;Uemura Hiroki
分类号 G03G9/08;G03G9/093 主分类号 G03G9/08
代理机构 Studebaker & Brackett PC 代理人 Studebaker & Brackett PC
主权项 1. An electrostatic latent image developing toner comprising toner particles that each include a toner core containing a binder resin and a shell layer disposed over a surface of the toner core, wherein the binder resin includes a crystalline polyester resin and an amorphous polyester resin, the crystalline polyester resin has a melting point of at least 80° C. and no greater than 120° C., when the electrostatic latent image developing toner is measured using a differential scanning calorimeter, a glass transition point is observed in a first run but is not observed in a second run, and the shell layer contains a resin including a thermosetting component and a thermoplastic component, the crystalline polyester resin has a molecular weight distribution (Mw/Mn) of at least 4.7 and no greater than 6.5, the molecular weight distribution (Mw/Mn) of the crystalline polyester resin expressing a ratio of a mass average molecular weight (Mw) of the crystalline polyester resin relative to a number average molecular weight (Mn) of the crystalline polyester resin.
地址 Osaka JP