| 摘要 |
PURPOSE:To obtain the titled composition, containing an epoxy resin, novolak type phenolic resin, beta-lauryl N-lauryl-DL-aspartate and a specific amount of an inorganic filler and having excellent moisture resistance without cracking or opening wires. CONSTITUTION:The aimed composition containing (A) an epoxy resin, (B) a novolak type phenolic resin, (C) beta-lauryl N-lauryl-DL-aspartate expressed by the formula and (D) 25-90wt.% inorganic filler (preferably silica or alumina) as essential components. Furthermore, the equivalent ratio (alpha/beta) of epoxy groups (alpha) in the component (A) to phenolic hydroxyl groups (beta) in the component (B) is preferably 0.1-10.
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