Epoxy resin composition, cured article thereof, semiconductor sealing material, novel phenol resin, novel epoxy resin, method for producing novel phenol resin, and method for producing novel epoxy resin
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United States of America Patent
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Sep 11, 2012
Grant Date -
Nov 10, 2011
app pub date -
Jun 10, 2011
filing date -
Sep 1, 2004
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Abstract
An epoxy resin composition including an epoxy resin and a curing agent as essential components, in which the curing agent comprises a phenol resin which has each structural moiety of a phenolic hydroxyl group-containing aromatic hydrocarbon group (P), an alkoxy group-containing aromatic hydrocarbon group (B) and a divalent aralkyl group (X), and also has, in a molecular structure, a structure in which the phenolic hydroxyl group-containing aromatic hydrocarbon group (P) and the alkoxy group-containing aromatic hydrocarbon group (B) are bonded with the other phenolic hydroxyl group-containing aromatic hydrocarbon group (P) or alkoxy group-containing aromatic hydrocarbon group (B) via the divalent aralkyl group (X).
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