Epoxy resin, epoxy resin composition, cured epoxy resin and manufacturing method thereof

摘要

An epoxy resin that contains, in a molecule, two mesogens coupled by a folded chain, is provided using a method that ensures easy synthesis of such an epoxy resin, and a uniform epoxy resin composition is provided based on this epoxy resin. The epoxy resin includes a major compound having a structure expressed by the Chemical Formula (1), and a method is provided for manufacturing the epoxy resin by reaction of (A) an epoxy resin with one mesogen contained in a molecule and (B) a compound with two elements of active hydrogen contained in a molecule, with the percentage composition of (B) active hydrogen with respect to (A) epoxy group being 0.25 and over, up to and including 0.7.