Unsaturated group-containing multi-branched compounds, curable compositions containing the same, and cured products thereof

摘要

A curable composition is obtained by mixing a polymerization initiator (B) or further a thermosetting component with an unsaturated group-containing multi-branched compound (A-1)-(A-4) obtained by the reaction of (a) a compound containing at least two epoxy groups in its molecule with (b) a compound containing at least two (but at least three when the component (a) mentioned above is a polyfunctional epoxy compound containing two epoxy groups) carboxyl groups and/or phenolic hydroxyl groups in its molecule and (c) an unsaturated monocarboxylic acid or a compound containing at least one unsaturated double bond-containing group, or an unsaturated group-containing multi-branched compound (A-5)-(A-8) having a carboxyl group and obtained by further causing (d) a polybasic acid anhydride to react with a hydroxyl group of the unsaturated group-containing multi-branched compound mentioned above.