| 摘要 |
<p>PURPOSE:To obtain the titled laminated board having excellent moldability, drillability, and thermal shock resistance, by laminating prepregs prepared from a varnish composed mainly of a non-brominated bisphenol A-type epoxy resin, etc. having an epoxy equivalent falling within a specific range, and hot- pressing the laminate. CONSTITUTION:The objective laminated board can be produced by hot-pressing the laminate of prepregs prepared from a varnish containing epoxy resin component composed mainly of (A) a non-brominated bisphenol A-type epoxy resin having an epoxy equivalent of 600-950 and (B) a bisphenol A-novolac epoxy resin (preferably a resin expressed by the formula and having a molecular weight of 450-1,400). The weight ratio of the resin A to the resin B (A/B) is (60-90)/(40-10).</p> |
