Charge control agent and toner for electrostatic image development
US7094513B2 · kind B2 · utility
4Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2003 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | May 31, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09783
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charge control agent of the present invention comprises aggregate particles of an azo-type iron complex salt represented by the following chemical formula [I]in the chemical formula [I], R1—, R2—, R3—, R4—, R5— and R6— are same or different to each other, n is 0.7 to 0.99,the aggregate particles have an average particle size of 1 to 4 microns and an average particle size of a primary particulate crystalline, that is fined the aggregate particles with ultrasonic irradiation, is at most 3 microns. A toner for developing an electrostatic image comprises a resin for the toner and the charge control agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.