| 摘要 |
<p>PURPOSE:To obtain the subject composition having excellent lubricity, causing little abrasion of the tip of ball point pen and giving smooth feeling in writing by compounding a polymeric compound containing a polyoxyalkylene glycol-allyl alkyl ether/maleic acid derivative copolymer, etc. CONSTITUTION:The objective composition contains a pigment, a dispersing agent, a water-soluble solvent, water and a polymeric compound containing a polyoxyalkylene glycol (-2-methyl)allyl alkyl ether/maleic acid derivative copolymer expressed at least by formula [X is H or methyl; Y and Z are H, alkali metal, (organic) ammonium or alkyl; AO is ring-opened ethylene oxide or ethylene oxide/propylene oxide; R is 1-18C alkyl; n is integer of 1-50; k is integer of 2-500]. The composition gives a written line having little blotting and excellent light-resistance and water-resistance and has excellent long-term dispersibility of pigment.</p> |
