| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an epoxy resin composition capable of providing a cured material excellent in transparency, and excellent in ultraviolet resistance, heat resistance, and dimensional stability, and capable of employing different curing systems. <P>SOLUTION: The epoxy resin composition contains as essential components (A) an alicyclic epoxy resin, (B) an ester compound of an acid anhydride represented by formula (1) and a cyclic ether compound having a hydroxy group, (C) a curing agent, and (D) a catalyst, wherein the proportion of the (A) component, the alicyclic epoxy resin is 30 to 85 mass% in the total amount of the (A) component, the alicyclic epoxy resin, and the (B) component, the ester compound. In the formula, R is hydrogen or a 1-5C hydrocarbon group. <P>COPYRIGHT: (C)2013,JPO&INPIT |
