Pigment dispersant for non-aqueous solvent, ink composition for ink-jet system, and electrophotographic liquid developer

摘要

A pigment dispersant for non-aqueous solvent, which is soluble in a non-aqueous solvent and comprises a silicone graft copolymer comprising a repeating unit derived from a macromonomer soluble in a non-aqueous solvent and a repeating unit derived from a monomer, which is copolymerizable with the macromonomer and forms a non-aqueous solvent-insoluble backbone of the silicone graft copolymer, wherein the macromonomer is a silicone macromonomer (M) having a polymerizable functional group at the terminal thereof.