US 2019/0171122 A1 · TONER, TONER STORAGE UNIT, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

Abstract

A toner is provided. The toner comprises a colorant, a release agent, and a binder resin. The binder resin comprises a crystalline polyester resin and an amorphous polyester resin. The amorphous polyester resin comprises an amorphous polyester resin A and an amorphous polyester resin B. The amorphous polyester resin A comprises an isocyanurate backbone and at least one of urethane bond and urea bond. The amorphous polyester resin B comprises a trimellitic acid backbone and at least one of urethane bond and urea bond.

Claims8

Dependent claims

A toner comprising:

a colorant;
a release agent;
and
a binder resin comprising:
a crystalline polyester resin;
and
an amorphous polyester resin comprising:
an amorphous polyester resin A comprising an isocyanurate backbone and at least one of urethane bond and urea bond;
and
an amorphous polyester resin B comprising a trimellitic acid backbone and at least one of urethane bond and urea bond.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/199,321Filed 26 Nov 2018

Priority

JP 2017-2334565 Dec 2017

Published

6 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

G03G 9/08755
Comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds: polyesters
G03G 9/08764
Comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds: polyureas; Polyurethanes
G03G 9/08795
Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775: characterised by their chemical…
G03G 9/08797
Macromolecular material not specially provided for in a single one of groups G03G9/08702 - G03G9/08775: characterised by their physical…

Toner, toner storage unit, image forming apparatus, and image forming method

Life of this patent

Toner, toner storage unit, image forming apparatus, and image forming method

Life of this patent

Abstract

Claims8