Liquid developer and method of producing liquid developer
US10545424B2 · kind B2 · utility
1Cited by
17References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2018 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Sep 25, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid developer comprising a carrier liquid, a toner particle insoluble in the carrier liquid, and a polymer having a primary amino group and soluble in the carrier liquid, wherein the toner particle comprises a polyester resin having an acidic group, an acid value of the polyester resin is at least 5 mg KOH/g, a pKa of the acidic group is not more than 3.4, and the polymer having a primary amino group has a primary amino group at a position other than the end of a main chain of the polymer, and method of producing thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.