| abstract |
(57) [Problem] A blue LED whose cured product is colorless and transparent, has a high Tg, has good UV resistance, has a low moisture absorption rate, has little discoloration under heating for a long time, and has good crack resistance. And an epoxy resin composition useful as a sealing material for a photoelectric conversion element such as a white LED. SOLUTION: In an epoxy resin composition containing an epoxy resin (A), an acid anhydride curing agent (B) and a curing accelerator (C) as essential components, the component (A) is bisphenol A. It is a nuclear hydride of diglycidyl ether and has the formula (1) An epoxy resin composition having a content of a compound represented by the formula: 5% or less, a nuclear hydrogenation rate of 95% by weight or more, and an epoxy equivalent of 210 or less. |