| 摘要 |
<p>PURPOSE:To provide the subject dispersion composed of an organic pigment, a specific pigment dispersing agent and a water-based resin, having high fluidity and storage stability and giving a coating film having excellent gloss and coloring power when used as a water-based paint. CONSTITUTION:The objective dispersion is composed of (A) an organic pigment, (B) 0.1-30wt.% (based on the component A) of an organic colorant derivative, an anthraquinone derivative or an acridone derivative expressed by formula (P is organic colorant residue, anthraquinone residue or acridone residue; X is bivalent linking group composed of 2-15 atoms selected from S, C, etc.; R1 is H, 1-18C alkyl, etc.; R2 is 1-4C alkyl; Y is random copolymer of ethylene oxide and propylene oxide having an average molecular weight of 400-10,000; (n) is 1-3) and (C) a water-based resin. The compound of formula is generally produced by introducing a substituent such as SO2 group into an organic colorant, anthraquinone or acridone and reacting with bis(polyoxyalkylene)amine in a reaction solvent such as water.</p> |
