| 摘要 |
PROBLEM TO BE SOLVED: To provide a light guide having small loss of light by being manufactured in high productivity by a lamination process and developing a core without using any organic solvent. SOLUTION: In the light guide, a clad is manufactured by a curing film formed of an epoxy resin composition containing a 1,2-epoxy-4-(2-oxiranyl)cyclohexane addition of 2,2-bis(hydroxymethyl)-1-butanol, a bisphenol epoxy resin, a phenoxy resin and a cation curing initiator. The core is manufactured by an optical curing film formed of an epoxy resin composition containing an epoxy resin having a 3,4-epoxycyclohexenil skeleton, an 1,2-epoxy-4-(2-oxiranyl)cyclohexane addition of 2,2-bis(hydroxymethyl)-1-butanol, a novolac epoxy resin, a bisphenol epoxy resin, an epoxy resin having a chemical structure of formula (1), and an optical cation curing agent. COPYRIGHT: (C)2009,JPO&INPIT |
