| 摘要 |
<p>PURPOSE:To provide the title composition smooth in ink delivery at the start of writing, giving smooth writing touch, and little in deterioration with an elapse of time, comprising organic solvent, colorant, resin and alkydiaminodiphenylmethane. CONSTITUTION:The objective composition comprising (A) pref. 20-70wt.% of organic solvent(s) (e.g. benzyl alcohol, cellosolve), (B) pref. 20-70wt.% of colorant(s), (C) pref. 2-50wt.% of resin (e.g. ketone resin, sulfoamide resin) and (D) pref. 0.1-20.0wt.% of p,p'-alkyldiaminodipheylmethane of the formula (R1-R4 are each H or 1-2C alkyl).</p> |
