| 摘要 |
PROBLEM TO BE SOLVED: To provide a curable resin composition having excellent handling properties and shelf stability and to provide a cured product having excellent low discoloration properties and a high refractive index.SOLUTION: The curable resin composition comprises both an epoxy compound represented by general formula (I) and an energy-ray-sensitive cationic-polymerization initiator. In general formula (I), X, Y and Z are each a 1-10C alkyl group or the like which may be substituted with a halogen atom, k is a number of 0 to 4; p is a number of 0 to 8; r is a number of 0 to 4; n is 0 to 10; x is a number of 0 to 4, and y is a number of 0 to 4, the sum of x and y is 2 to 4; and an optical isomer existing when n is not 0 can take the form of any optical isomer. |
