Patent ID: 8178271

Claim:
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 -A 25 -SO 2 R 25 ; R 25w , R 25X , and R 25y are selected from combinations described in the following items (i) and (ii); for the item (i), A 25 and R 25 are selected from combinations described in the following items (i-A) and (i-B); for the item (ii), A 25 and R 25 are selected from combinations described in the following item (ii-A): (i) R 25w and R 25X each represent a hydrogen atom, and R 25y represents a CH 3 group or a hydrogen atom; (i-A) A 25 represents a substituted or unsubstituted aliphatic hydrocarbon structure; R 25 represents OR 25a where R 25a represents a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure; (i-B) A 25 represents a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure; R 25 represents OR 25a where R 25a represents a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure; (ii) R 25w and R 25X each independently represent a halogen atom or a hydrogen atom; R 25y represents a CH 3 group, a halogen atom, or a hydrogen atom; at least one of R 25w , R 25X , and R 25y represents a halogen atom; (ii-A) A 25 represents a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure; R 25 represents OR 25a where R 25a represents a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure.