| 摘要 |
PROBLEM TO BE SOLVED: To obtain a colorless isophthalic acid compound and a pigment dispersant which is substantially colorless, actualizes stable, excellent dispersibility, fluidity and has excellent light transmission. SOLUTION: Isophthalic acid compound is represented by general formula (1) [R<1> is H, a halogen atom, a nitro group, an amino group, a hydroxy group, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkyl amino group, a dialkylamino group, a heterocyclic group, an acylamino group or an acyloxy group; A<1> to A<3> are each an alkylene group, an arylene group or an alkenylene group; X<1> is a single bond, oxygen, an N(R<6> ), NHCO, CONH, OCO, CO2 , CO, SO2 NH or SO3 ; X<2> to X<3> are each oxygen or an N(R<7> ); R<2> to R<7> are each H, an alkyl group, an alkenyl group, an alkynyl group or an aryl group]. This pigment dispersant contains the isophthalic acid compound. |
