| 摘要 |
PROBLEM TO BE SOLVED: To provide an epoxy resin composition with excellent solvent solubility, capable to give a cured product with both heat resistance and low dielectric tangent and which can be suitably used for electric insulation, etc., and its cured product. SOLUTION: The epoxy resin contains one or more hydroxy compound residue selected from the group consisting of formulae (1)-(7), wherein k and l represent each an average value of repetition unit of 0-1.5, m and n represent each an integer of 0-3, Y represents an oxygen atom, an optionally alkyl-, phenyl-, biphenyl- or 9-fluorenyl-substituted methylene group wherein the phenyl, naphthyl or biphenyl group may further be substituted with an aromatic nucleus on an alkyl group, and an aromatic polycarboxylic acid residue. The epoxy resin composition contains a polyester having a terminal aryloxycarbonyl group and the epoxy resin, and its cured product is provided. COPYRIGHT: (C)2004,JPO
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