EPOXY/VINYL COPOLYMER-TYPE LIQUID RESIN COMPOSITION, CURED ARTICLE THEREOF, ELECTRICAL/ELECTRONIC DEVICE USING SAID CURED ARTICLE, AND METHOD FOR PRODUCING SAID CURED ARTICLE

摘要

The present invention provides: an epoxy/vinyl copolymer-type liquid resin composition containing an epoxy resin having an epoxy resin equivalent weight of 200 g/eq or less, an acid anhydride having an unsaturated double bond which is liquid at normal temperature or a maleic anhydride and acid anhydride having an unsaturated double bond which are liquid at normal temperature, a multifunctional vinyl monomer which is liquid at normal temperature, an epoxy resin curing catalyst for promoting a curing reaction of the epoxy resin and the acid anhydride or the maleic anhydride and acid anhydride, and a radical polymerization catalyst for promoting a curing reaction of the multifunctional vinyl monomer; and a cured article thereof. This makes it possible to reduce varnish viscosity and improve the thermal resistance of the cured article. It is also possible to provide a cured article obtained by curing the thermosetting resin composition as well as an electrical/electronic device for which the cured article is an insulating material and/or structural material.