EPOXY RESIN COMPOSITION AND PREPREG MADE WITH THE EPOXY RESIN COMPOSITION

摘要

A two-stage-curable epoxy resin composition which comprises (a) an epoxy resin, (b) a latent hardener having the ability to harden at 100 DEG C or lower, and (c) an aromatic amine hardener and/or alicyclic amine hardener and optionally further contains (d) a hardening accelerator; and a prepreg obtained by infiltrating the epoxy resin composition into a fibrous reinforcement. The composition primarily cures at a low temperature to give a demoldable cured article and secondarily cures to give a cured article having high heat resistance. It has satisfactory stability at room temperature.