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US 8,343,269 B2Granted
Colorant compound
AssigneeCanon Kabushiki Kaisha
InventorsKaoru Takahashi, Yasuaki Murai, Kei Inoue, Masashi Hirose, Takeshi Miyazaki, Ryosuke Nagao, Otome Mori, Minako Kawabe
Life of this patent
Estimating the term…
Abstract
The present invention is a colorant compound represented by the following general formula (1): wherein at least one of R2, R4, R7 and R9 is an acylamino group represented by the following general formula (2): wherein R11 denotes one of an alkyl group, a cycloalkyl group, an aryl group, an arylalkyl group, an alkenyl group and a heterocyclic group; and ‘*’ denotes a bonding site with an aromatic ring of the general formula (1).
Claims11
A colorant compound represented by the general formula (1) shown below:
- wherein R1, R5, R6 and R10 each independently denote an alkyl group;
- R3 and R8 each independently denote one of a hydrogen atom, an alkyl group, an alkoxy group and an aryloxy group;
- R2, R4, R7 and R9 each independently denote one of a hydrogen atom and an acylamino group represented by the general formula (2) shown below, and at least one of R2, R4, R7 and R9 is an acylamino group represented by the general formula (2) shown below;
- Z denotes one of an SO3H group, an SO3M group and a sulfamoyl group, M denotes one of an ammonium ion and an alkali metal ion, and Z is substituted at a position of at least one hydrogen atom of an aromatic ring;
- and n denotes an integer of 0 to 3 in the case where at least one of R2, R3, R4, R7, R8 and R9 is substituted with an ionic group, and n denotes an integer of 1 to 3 in the case where none of R2, R3, R4, R7, R8 and R9 is substituted with an ionic group,
- wherein R11 denotes one of an alkyl group, a cycloalkyl group, an aryl group, an arylalkyl group, an alkenyl group and a heterocyclic group;
- and ‘*’ denotes a bonding site with an aromatic ring in the general formula (1).
4 more elements
Dependencies are inferred from the claim text.