| 摘要 |
PURPOSE:To provide a composition composed of an epoxy resin composition containing a liquid acrylonitrile-butadiene copolymer having carboxyl group at the terminal, having decreased thermal expansion coefficient as well as Young's modulus, keeping the glass transition point at a desirable level, and satisfying the PCT test. CONSTITUTION:An epoxy resin composition containing 5-40PHR of a liquid acrylonitrile-butadiene copolymer having carboxyl group at the terminal. The content of acrylonitrile in the copolymer is preferably 5-40%. The epoxy resin is the one liquid at the room temperature, and is e.g. bisphenol A-type epoxy resin, etc.
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