EPOXY RESIN, EPOXY RESIN COMPOSITION AND PRODUCTS OF CURING THEREOF

摘要

This invention provides a novolak type epoxy resin which has low melt viscosity but shows high heat resistance when hardened. Particularly, it relates to a novolak type epoxy resin in which the relationship between the total % by weight of 3 to 6 nucleus bodies and the melt viscosity measured by a cone plate method at 150 DEG C satisfies specified conditions, an epoxy resin composition containing the same and hardened products thereof.