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US 8,178,271 B2Granted
Polymer having a sulfonic group or a sulfonate group and an amide group and method of producing same
AssigneeCanon Kabushiki Kaisha
InventorsTatsuki Fukui, Takashi Kenmoku, Ako Kusakari, Chieko Mihara, Tetsuya Yano, Norikazu Fujimoto
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Abstract
A polymer is provided in which a sulfonic group or a derivative thereof is introduced. The polymer includes a unit represented by the following chemical formula (1): wherein R represents -A1-SO2R1; A1 is selected from an alkylene group, a heterocyclic ring, an aromatic ring; and —SO2R1 is a sulfonic group or of a derivative of a sulfonic acid.
Claims9
A toner for developing an electrostatic charge image, which contains at least:
- a binder resin;
- a colorant;
- and
- a charge control agent, wherein the charge control agent contains a polymer having a unit having a structure represented by the chemical formula (19):
- wherein R represents -A25-SO2R25;
- R25w, R25X , and R25y are selected from combinations described in the following items (i) and (ii);
- for the item (i), A25 and R25 are selected from combinations described in the following items (i-A) and (i-B);
- for the item (ii), A25 and R25 are selected from combinations described in the following item (ii-A):
- (i) R25w and R25X each represent a hydrogen atom, and R25y represents a CH3 group or a hydrogen atom;
- (i-A) A25 represents a substituted or unsubstituted aliphatic hydrocarbon structure;
- R25 represents OR25a where R25a represents a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure;
- (i-B) A25 represents a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure;
- R25 represents OR25a where R25a represents a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure;
- (ii) R25w and R25X each independently represent a halogen atom or a hydrogen atom;
- R25y represents a CH3 group, a halogen atom, or a hydrogen atom;
- at least one of R25w, R25X, and R25y represents a halogen atom;
- (ii-A) A25 represents a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure;
- R25 represents OR25a where R25a represents a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure.
15 more elements
Dependencies are inferred from the claim text.