| 摘要 |
PROBLEM TO BE SOLVED: To obtain a dispersion having excellent coloring sensitivity, ground preservation after color recording, image preservation, especially excellent light resistance, useful for a pressure-sensitive copying paper, etc., by cogrinding a specific adduct body compound and an active hydrogen-containing compound. SOLUTION: This dispersion is obtained by cogrinding (A) an isocyanate adduct body compound having >=40 deg.C melting point and (B) an active hydrogen- containing compound (preferably at least one selected from the group consisting of a phenolic compound, a hydroxyl-containing heterocyclic compound, a carboxyl group-containing compound, an amino compound, an alcoholic compound and a thiol compound). Preferably the component A obtained by a method for using at least one isocyanate group of an isocyanate as a reactive group and carrying out dimerization or trimerization through a urea bond or a biuret bond by reacting the isocyanate with water is used. |
