| abstract |
An epoxy resin for providing a cured product excellent in high pyrolytic stability, high heat resistance, low thermal expansion, flame retardancy, and low hygroscopicity, a method of manufacturing the same, and an epoxy resin composition are provided. Epoxy resin obtained by reacting epichlorohydrin with a phenolic resin having both an ether bond and a ketone bond, and the phenolic resin as an intermediate of the epoxy resin reacts with dihalogenobenzophenones and bisphenol or resorcinol. You can get it. Moreover, it is an epoxy resin composition which makes this epoxy resin an essential component, and the hardened | cured material obtained by hardening this. |