| 摘要 |
A crystalline epoxy resin is modified to provide an epoxy resin composition capable of producing a cured product with excellent cured product properties. The modified epoxy resin composition comprises compound A having in its molecule a functional group represented by formula (1) (where each of R<SUP>1 </SUP>and R<SUP>2 </SUP>is an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group, a heterocyclic group, or a halogenated, aminated or nitrated derivative thereof) and compound B having a glycidyl group in its molecule The compound A is preferably a compound resulting from replacement of from at least one to at most n glycidyl groups among n glycidyl groups in a molecule (where n is an integer of from 2 to 16) with the functional group of the formula (1). The compound B is preferably a compound having n glycidyl groups (where n is an integer of from 2 to 16) in its molecule.
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