Patent ID: 9745443
Date: 2017-08-29
CPC Classifications: C08K

Claim:
1. An inorganic filler-containing epoxy resin cured product of an epoxy resin composition, wherein the epoxy resin composition comprises: at least one epoxy compound, a curing agent selected from 1,3,5-tris(4-aminophenyl)benzene and 1,3,5-tris(4-hydroxyphenyl)benzene, and a magnesium oxide powder; wherein the curing agent is provided in an amount yielding 80 to 130 moles of active hydrogen in the amine groups or the hydroxyl groups of the curing agent relative to 100 moles of epoxy group of the at least one epoxy compound; wherein the magnesium oxide powder is provided in an amount yielding a filling factor of 45% to 63% by volume of the inorganic filler-containing epoxy resin cured product; and the inorganic filler-containing epoxy resin cured product has a maximum thermogravimetric mass loss rate ΔR