Patent ID: 9618867
Date: 2017-04-11
CPC Classifications: C08K,G03G

Claim:
1. A pigment dispersion comprising: a pigment; a non-water-soluble solvent; a compound having: a polymer compound having a monomer unit comprising at least one structure selected from the group consisting of partial structures represented by formulas (3) and (4) [in formula (1), R 1 and R 2 each independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted phenyl group, an OR 5 group, or an NR 6 R 7 group; R 5 to R 7 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted phenyl group, or an aralkyl group; and Ar represents a substituted or unsubstituted aryl group; wherein at least one of R 1 , R 2 , and Ar has a substituent that has a site bonded to the polymer] [in formula (2), R 3 represents a hydrogen atom or an alkyl group and R 4 represents a substituted or unsubstituted phenyl group, a carboxy group, a substituted or unsubstituted alkoxycarbonyl group, or a substituted or unsubstituted carboxamide group] [in formula (3), R 8 to R 11 each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, a carboxy group, a sulfo group, a C 1-18 alkyl group, a C 1-18 alkoxy group, or an organic group as required to form a ring with an adjacent position, wherein at least one of R 8 to R 11 has a substituent that has a site bonded to a main chain or a side chain in the polymer compound, and M 1 and M 2 each independently represent a hydrogen atom, a metal atom, or NH 4 ] [in formula (4), R 12 to R 16 each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group, or an alkoxy group, wherein at least one of R 12 to R 16 has a substituent that has a site bonded to a main chain or a side chain in the polymer compound, and M 3 represents a hydrogen atom, a metal atom, or NH 4 ].