| 摘要 |
PROBLEM TO BE SOLVED: To provide a composition which can be used for producing a cured epoxy resin having not only excellent electrical insulating properties and mechanical properties, which are inherent to an epoxy resin, but also excellent adhesiveness with a plastic and a high glass transition temperature, by compounding an epoxy resin, an acid anhydride, a cure accelerator and an amine type silane coupling agent. SOLUTION: (A) An epoxy resin usable is a bisphenol A type epoxy resin or the like which has one or more epoxy resins. (B) An acid anhydride usable is preferably a liquid at room temperature, such as methyltetrahydrophthalic anhydride. (C) As a cure accelerator, use is made of, for example, 2-ethyl-4- methylimidazole. (D) As an amine type silane coupling agent, use is made of, for example,γ-aminopropyltrimethoxysilance. Components B and D are preferably compounded in amounts of 70 to 130 pts.wt. and 0.5 to 5 pts.wt., respectively, relative to 100 pts.wt. of component A, and component C is preferably compounded in amounts of 0.1 to 5 pts.wt. relative to 100 pts.wt. of component B.
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