Process for preparing a color toner for developing an electrostatic image
US6255029A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1999 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Aug 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0916
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for preparing a color toner for developing an electrostatic image comprising a step of polymerizing monomers to obtain resin particles, wherein the color toner comprises primary particles or secondary particles of resin particles, and a metal complex dye represented by the following formula (1) or formula (2), ##STR1## PA1 wherein, X.sup.1 and X.sup.3 each are a group of atoms bonding with each other which can form at least bidentate coordination bond with a metal ion; Y.sup.1 represents an aromatic hydrocarbon ring, a 5- or 6-membered heterocyclic ring or --L.sup.4.dbd.Y.sup.2 ; Y.sup.2 and Y.sup.3 each represent an aromatic hydrocarbon ring or a 5- or 6-membered heterocyclic ring; L.sup.1 and L.sup.4 each represent a substituted or an unsubstituted methine group or a nitrogen atom; L.sup.2 and L.sup.3 each represent a substituted or an unsubstituted methine group; M represents a metal ion which can form at least a bidentate coordination bond with said group of atoms bonding with each other represented by X.sup.1 and X.sup.3 ; m represents an integer of 0, 1, 2 or 3; n1 and n2 each represent an integer of 1, 2 or 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.