| abstract |
A pigment dispersing resin capable of forming a coating film having excellent appearance and water resistance. The general formula (I) (Wherein R 1 represents an alkylene group having 1 to 10 carbon atoms, m is an integer of 1 to 30, and m specific repeating units may be the same or different from each other). A pigment-dispersing resin containing a divalent group and a phosphoric acid group and / or a sulfonic acid group, the polymerizable unsaturated monomer mixture containing no hydroxyl group and at 20 ° C. A method for producing a pigment-dispersing resin, comprising copolymerizing an organic solvent having a solubility in water of 100% by mass or more in a reaction solvent containing 30% by mass or more based on the total mass of the reaction solvent. [Selection figure] None |