| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a cation-hardenable resist ink composition excellent in developability, photosensitivity and definition and giving a hardened body which well satisfies adhesion, pencil hardness, solvent, acid and heat resistances or the like. SOLUTION: The cation-hardenable resist ink composition contains an epoxy- containing polycarboxylic acid resin (A) obtained by allowing an epoxy compound (a) having two or more epoxy groups in one molecule to react with a monocarboxylic acid (b) having one or more alcoholic hydroxyl groups in one molecule and allowing the resultant reaction product (I) to react with a polybasic acid anhydride (c), a photo-cationic polymerization initiator (B) and a sensitizer (C).</p> |
