Patent ID: 8551676

Claim:
A pigment-dispersed composition comprising at least a resin including, as copolymer components, a structural unit having a pendant group containing a nitrogen-containing heterocyclic ring, and a structural unit represented by Formula (6) having a pendant group containing an ethylenic unsaturated double bond; a pigment; and a solvent: wherein, in Formula (6), A 1 represents —CO—, —C(═O)O—, —CONH—, —OC(═O)— or a phenylene group; G 1 represents a divalent organic group; X 3 represents an oxygen atom, a sulfur atom or —N(R 52 )—; R 52 represents an alkyl group which may be substituted; m 1 and n 1 each independently represents 0 or 1; and R 31 to R 36 each independently represents a hydrogen atom or a monovalent substituent; wherein the resin includes a structural unit represented by the following Formula (1) as a structural unit having a pendant group containing a nitrogen-containing heterocyclic ring: wherein, in Formula (1), R 1 and R 2 each independently represents a hydrogen atom or a monovalent organic group; R 3 represents a hydrogen atom, a hydrocarbon group having 1 to 6 carbon atoms, —COOH, —CN, —CF 3 , —CH 2 OH, —CH 2 COOH, —CH 2 COOR a or —COOR b , wherein R a and R b each independently represents a hydrocarbon group having 1 to 6 carbon atoms; X represents —O—, —CO—, —COO—, OCO—, —CONH—, —NHCO— or phenylene; R 4 represents a divalent organic group or a single bond; and A represents a nitrogen-containing heterocyclic ring.