EPOXY RESIN COMPOSITION AND PREPREG MADE WITH THE EPOXY RESIN COMPOSITION

摘要

Epoxy resin compositions comprising (a) an epoxy resin, (b) a latent curing agent with curing power at 100 DEG C or below and (c) an aromatic amine-based curing agent and/or an alicyclic amine-based curing agent, which are curable in two stages, or epoxy resin compositions further comprising (d) a curing accelerator, as well as a prepregs comprising reinforcing fiber materials impregnated with the epoxy resin compositions. The compositions give die-releasable cured products by primary curing at low temperature, give highly heat-resistant cured products by secondary curing, and exhibit satisfactory stability at room temperature.