Toner and method for producing toner
US10451990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2018 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Sep 20, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/107
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner comprising a toner particle including a resin component, wherein the resin component includes an olefin copolymer including ester group having specific structures Y1 and Y2 and an olefin copolymer including acid group having an acid value of from 50 mg KOH/g to 300 mg KOH/g, the amount of the olefin copolymer including ester group is 50% by mass or more, the toner particle has a surface layer including the olefin copolymer including acid group which has formed a salt with a metal, the metal is at least one metal selected from the group consisting of Mg, Ca, Sr, Al, and Zn, and the total amount of the metal in the toner is from 25 ppm to 500 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.