| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a curable composition which excels in storage stability, can be constituted as a single-component curable composition, and provides an excellent cured coating film satisfying properties such as electric insulation, PCT (pressure cooker test) resistance, adhesion, resistance to the heat of soldering, chemical resistance, resistance to electroless gold plating and moisture-absorption resistance. <P>SOLUTION: The curable composition contains (A) a carboxyl group-containing photosensitive compound obtained by reacting a reaction product (d) of a compound (a) having three or more phenolic hydroxyl groups in a molecule and an alkylene oxide (b) and/or a cyclic carbonate (c) with an unsaturated group-containing monocarboxylic acid (e) and reacting the resultant reaction product (f) with a polybasic acid anhydride (g), (B) an epoxy resin having 1,3-dioxolane ring, which is obtained by partially adding a ketone to an epoxy resin having two or more epoxy groups in a molecule, and (C) a photopolymerization initiator. <P>COPYRIGHT: (C)2007,JPO&INPIT |
