Epoxy resin, epoxy resin composition thereof and cured product thereof

摘要

An epoxy resin represented by general formula (2), R1-R4 indicate hydrocarbon group of carbon number 1-6, n is 0 or integer of 1 or more and X in aromatic compound (1) is a bond or following general formula wherein R1-R6 indicates hydrogen atom or hydrocarbon group of carbon number 1-6, obtained by reacting aromatic compound represented by general formula (1) and epihalohydrine, having molecular weight distribution comprising, content of n=0 component in the epoxy resin represented by general formula (2) is 60% or less and epoxy equivalent is 250 g/eq or over.