Charge control agent and toner using same
US9835965B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2014 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Sep 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0904
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
To provide a charge control agent and a toner having a superior charging characteristic. A charge control agent containing a bis-phthalimide derivative represented by formula. Thus, it is possible to provide a safe, negative chargeability charge control agent with which the rate of rise of the charge can be increased, and which has a high charging amount and poses no problem in terms of waste regulations. Furthermore, it is possible to provide a negatively chargeable toner (and particularly, a negatively chargeable polymerized toner) for electrostatic image development which uses this charging control agent and has a superior charging characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.