Patent ID: 7718741
Filing Date: 2010-05-18
Classification: C08G,C08L,H01L

Abstract:
1. An epoxy resin composition comprising, as essential components, an epoxy resin (A) having a molecular structure comprising a polynaphthylene oxide structure as a main skeleton, a (methyl)glycidyloxy group and a structural segment represented by the following structural formula (I) being attached to an aromatic ring of the polyaryleneoxy structure in the formula (I), R 1 and R 2 each independently represents methyl group or hydrogen atom, Ar represents phenylene group, a phenylene group which is nuclear-substituted with 1 to 3 alkyl groups having 1 to 4 carbon atoms, naphthylene group, or a naphthylene group which is nuclear-substituted with 1 to 3 alkyl groups having 1 to 4 carbon atoms, and n represents an average number of repeating units of 0.1 to 4, and a curing agent (B).