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US 8,628,899 B2Granted
azo compound, and pigment dispersant, pigment composition, pigment dispersion and toner including the AZO compound
AssigneeCanon Kabushiki Kaisha
InventorsMasashi Kawamura, Yuki Hasegawa, Masatake Tanaka, Takayuki Toyoda, Kei Inoue, Yasuaki Murai, Masashi Hirose, Takeshi Miyazaki
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Abstract
There is provided an azo compound for improvement in the dispersibility of an azo pigment into a water-insoluble solvent. The azo compound is represented by the following general formula (1):
Claims14
An azo compound, being represented by the following general formula (1):
- wherein R1 represents an alkyl group having 1 to 6 carbon atoms, or a phenyl group;
- R2 to R6 each represent a hydrogen atom, or a polymer containing a partial structural formula represented by the general formula (2) shown below, and at least one of R2 to R6 is the polymer;
- R7 to R11 each represent a hydrogen atom, a COOR12 group, or a CONR13R14 group, and at least one of R7 to R11 is a COOR12 group, or a CONR13R14 group;
- and R12 to R14 each represent a hydrogen atom, or an alkyl group having 1 to 3 carbon atoms:
- wherein R15 represents a hydrogen atom, or an alkyl group having 1 or 2 carbon atoms;
- and
- * is a bonding position through which the polymer is bonded to the azo compound as R2 to R6 in the general formula (1).
4 more elements
Dependencies are inferred from the claim text.