| 摘要 |
<p>PURPOSE:To obtain the title composition smoothly feeding ink in beginning of writing, providing a stable feeling in writing and slightly deteriorating with time, comprising an organic solvent, colorant and a specific organic polymer. CONSTITUTION:The objective composition comprising an organic solvent, a colorant and a polymer compound having polyoxyalkylene glycol structure shown by the formula (X is H or CH3; k is 5-1,000; n is number of addition mols of ethylene oxide and positive integer) and acid anhydride structure. The amount of the polymer compound blended is preferably 1-30 pts.wt.</p> |
