| 摘要 |
<p>An epoxy resin composition whose cationic polymerization can be initiated by irradiation with an energy ray and which at least comprises (A) a bisphenol type epoxy resin as the main component, (B) an epoxy resin represented by chemical formula (I) and (C) a cationic polymerization catalyst. This composition can so improve the heat resistance of the adhesive layer of an optical information recording medium that the tenaciousness of the medium is not lowered even when the hardness of the adhesive layer increases or when the medium is placed under high humidity. In formula (I), a + b + c = 15 (average) (b) wherein R is (II).</p> |
