| 摘要 |
<p>PURPOSE: To provide compsn. having satisfactory dil. alkali developability, contg. a UV-curing resin having a long shelf life and giving a cured coating film excellent in adhesion, heat and moisture resistances and electric insulating property. CONSTITUTION: In this compsn. contg. a UV-curing resin, a photopolymn. initiator, a diluent and a thermosetting resin, the UV-curing resin is obtd. by allowing a dibasic acid anhydride having a mol. wt. of <=120 and a dibasic acid anhydride having a mol. wt. of >=140 in a molar ratio of 1:9 to 9:1 to react simultaneously with a reactional product of a novolak type epoxy compd. with unsatd. mono- carboxylic acid.</p> |
