TONER

• US 20180259867A1
• Filed: 03/06/2018
• Published: 09/13/2018
• Est. Priority Date: 03/10/2017
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: SANO, HITOSHI, Hashimoto, Takeshi, Hama, Masayuki, Kanno, lchiro, Onozaki, Yuto, Matsubara, Akifumi, Ikeda, Megumi, Komatsu, Nozomu, Kobori, Takakuni, Fujikawa, Hiroyuki
• Granted Patent: US 10,451,986 B2
• Time in Patent Office: Days
• CPC Class Codes: G03G 9/08755 Polyesters
• CPC Class Codes: G03G 9/09733 Organic compounds G03G9/08782 takes precedence

Abstract

According to the present invention, in a toner including a toner particle containing a binder resin and a low molecular aromatic hydrocarbon, the binder resin contains a polyester resin, at least one kind of a unit derived from an aromatic monocarboxylic acid and a unit derived from an aromatic monoalcohol is contained, and the low molecular aromatic hydrocarbon has 1 or more and 4 or less benzene rings, and has a melting point of 60° C. or more and 120° C. or less.

Claims

1. A toner, comprising a toner particle containing a binder resin and a low molecular aromatic hydrocarbon,

the binder resin containing a polyester resin,

the polyester resin having at least one kind of a unit derived from an aromatic monocarboxylic acid and a unit derived from an aromatic monoalcohol,

the low molecular aromatic hydrocarbon having 1 or more and 4 or less benzene rings, and

the low molecular aromatic hydrocarbon having a melting point of 60°

C. or more and 120°

C. or less.

2. The toner according to claim 1, wherein the low molecular aromatic hydrocarbon contains at least one kind of compounds represented by any one of the following formulas (1) to (9)

3. The toner according to claim 1, wherein

the low molecular aromatic compound is contained in an amount of 0.1 part by mass or more and 10.0 parts by mass or less based on 100 parts by mass of the binder resin.

4. The toner according to claim 1, wherein

the polyester resin has a unit derived from a benzoic acid.