| 摘要 |
PROBLEM TO BE SOLVED: To provide an active energy ray-curing resin composition, regarding a single coated optical fiber in which the outside of a glass core wire is provided with three or more coating layers each composed of a curing film of an active energy-curing resin composition, which has excellent initial drawability directly after production, and has excellent drawing stability after use over a long period, particularly after use over a long period in a high temperature environment. SOLUTION: The active energy ray-curing resin composition for an optical fiber is used to form the outermost layer (Z) of a single coated optical fiber having three or more coating layers in which the outermost layer (Z) in the coating layers has 70 to 270μm film thickness and an outer diameter of 350 to 800μm, and the composition comprises a radical polymerizable compound and a polyalkylene oxide modified silicone compound (D1). COPYRIGHT: (C)2007,JPO&INPIT
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