Charge control agent and toner using same

Charge control agent and toner using same

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 charg...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Yamamoto Takeshi, Tojo Masaya, Ito Masami, Tsuji Motonori, Okubo Masaki, Kimura Ikuo, Asakai Masafumi, Yoshida Tetsuya
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HETEROCYCLIC COMPOUNDS
HOLOGRAPHY
MAGNETOGRAPHY
METALLURGY
ORGANIC CHEMISTRY
PHOTOGRAPHY
PHYSICS
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Beschreibung
Zusammenfassung: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.