TONER PARTICLES

Registre Brevet USPTO
Numéro d'application 17781424
Statut En instance
Date de dépôt 2020-10-21
Date de la première publication 2023-01-26
Date de publication 2023-01-26
Propriétaire HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (USA)
Inventeur(s)
  • Terada, Akinori
  • Ishikawa, Keiichi
  • Ieda, Osamu
  • Danno, Takahiro
  • Komoto, Keiji

Abrégé

A toner particle includes a binder resin, a colorant, a releasing agent, and a dispersant. The binder resin includes a non-crystalline polyester resin containing 1 to 15 mol % of a polyfunctional carboxylic acid unit having a pendant group with 3 to 32 carbons and a crystalline polyester resin. An endothermic amount Tg2nd-dH derived from the crystalline polyester resin is 4 to 40 J/g. The releasing agent has a melting point of 60 to 100° C. The dispersant has a melting point of 60 to 100° C. A mass ratio of the dispersant to the releasing agent is 50:50 to 95:5.

Classes IPC  ?