| 摘要 |
PROBLEM TO BE SOLVED: To provide an easily handled, liquid photocurable composition which yields a cured product having a low coefficient of linear expansion and does not increase its viscosity, even after addition of a large amount of an inorganic filler. SOLUTION: The photocurable composition essentially comprises (A) an epoxy resin containing an organosilica sol, (B) a glass fiber having an average fiber length of≤200μm and an aspect ratio of≤20 and (C) a photopolymerization initiator and yields a cured product wherein the coefficient of linear expansion is≤20×10<SP>-6</SP>/K. COPYRIGHT: (C)2006,JPO&NCIPI
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