Patent · US Active

Toner

US10228629B2 · kind B2 · utility

36Cited by

9References

9Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Junichi Tamura · Ichihara, JP
Hayato Ida · Ibaraki, JP
Takaho Shibata · Tokyo, JP
Yuya Chimoto · Kawasaki, JP
Kouichirou Ochi · Chiba, JP
Ryuji Murayama · Chiba, JP
Daisuke Yamashita · Kawasaki, JP
Tomoyo Miyakai · Tokyo, JP
Takashi Hirasa · Yokohama, JP

Key dates

Filing date	Jan 17, 2018
Grant date	Mar 12, 2019
Priority date	—
Expiry date	Jan 17, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG03G9/08795
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A toner comprising a toner particle that contains a hybrid resin A and a crystalline polyester resin B, wherein the hybrid resin A has a polyester segment, and a polypropylene glycol segment that has a number-average molecular weight of at least 300, the polyester segment has a structure derived from a condensation reaction between a dicarboxylic acid and a diol, and has an aromatic ring in at least one of the dicarboxylic acid and the diol, and the following condition is satisfied: |SPh−SPc|−|SPp−SPc|<1 where, SPh is SP value of the polyester segment of the hybrid resin A, SPc is SP value of the crystalline polyester resin B, and SPp is SP value of the polypropylene glycol segment of the hybrid resin A.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.