| 摘要 |
<p>PURPOSE:To obtain the title composition containing water as a medium, consisting of pigment, specific dispersant and hydrophilic solvent, suitable for aqueous ink for writing tools, poster color, etc., having good shelf life, vivid color after using and excellent light resistance, water resistance, etc. CONSTITUTION:The aimed composition containing water as a medium and consisting of (A) pigment, (B) dispersant an ammonium salt or amine salt of polyester resin having carboxyl group extended in the chain by selective monoesterification reaction of (i) polyester glycol wherein glycol or end of the polyester glycol is hydroxyl group with (ii) tetracarboxylic acid dianhydride and (C) hydrophilic solvent.</p> |
