| 摘要 |
Epoxy resin represented by general formula (I), wherein n is an integer of 0 or more, A<SUB>1 </SUB>and A<SUB>2 </SUB>are residue of divalent phenol, and A<SUB>1 </SUB>and A<SUB>2 </SUB>can be same or can be different and both R<SUB>1 </SUB>and R<SUB>2 </SUB>are H or which is synthesized from divalent phenol and epihalohydrine, and satisfies numerical formula (1), <?in-line-formulae description="In-line Formulae" end="lead"?>0.3<=X/Y<=2.0 formula (1) <?in-line-formulae description="In-line Formulae" end="tail"?> wherein, X; epoxy equivalent (g/eq) Y; phenolic hydroxyl group equivalent (g/eq) further, amount of hydrolytic halogen is 0.05 wt. % or less.
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