| abstract |
(57) [Summary] [Structure] Phenyl glycol, (sulfomethyl group-containing) melamine and / or (sulfomethyl group-containing) urea, And a dispersant for inorganic pigments, which comprises a cocondensation product obtained by addition-condensing at least one selected from phenol with formaldehyde. [Effect] With a small addition amount, the apparent viscosity is largely reduced and the dispersibility is remarkable, so that the viscosity increase over time due to insufficient dispersion, which is a drawback of the conventional dispersants, is improved, and the gloss and color development of the paint are improved. Be improved. Further, since it becomes possible to adjust a high-concentration pigment dispersion liquid, it is expected that the cost required for transportation will be reduced. |