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US 8,110,329 B2Granted
Charge controlling agent and toner
AssigneeCanon Kabushiki Kaisha
InventorsAkiko Tominaga, Tatsuki Fukui, Takashi Kenmoku, Ako Kusakari, Masato Minami, Tetsuya Yano, Takeshi Ikeda, Norikazu Fujimoto, Atsushi Tani
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Abstract
A charge controlling agent is provided as a compound in which an amide group is introduced together with a sulfonic group or a derivative thereof. The charge controlling agent is characterized by including at least one compound represented by the chemical formula (2) in which an amide group is introduced together with at least one of a sulfonic group, a sulfonic acid ester, a sulfonic acid salt, and a sulfonic acid halide.
Claims1
A toner for developing an electrostatic charge, image comprising:
- a binder resin;
- a coloring agent;
- and
- a compound represented by the chemical formula (2):
- wherein R12 and R22 satisfy the following conditions (1) to (4);
- (1) R12 and R22 independently represent any one of a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure;
- (2) at least one of R12 and R22 contains at least one SO2R32 group as a substituent;
- (3) R32 is OR42;
- and
- (4) R42 represents any one of a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure.
7 more elements
Dependencies are inferred from the claim text.