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METHACRYLIC COPOLYMER AND ITS PRODUCTION METHOD, PLASTIC OPTICAL FIBER, PLASTIC OPTICAL FIBER CABLE, AND PLASTIC OPTICAL FIBER CABLE WITH PLUG
METHACRYLIC COPOLYMER AND ITS PRODUCTION METHOD, PLASTIC OPTICAL FIBER, PLASTIC OPTICAL FIBER CABLE, AND PLASTIC OPTICAL FIBER CABLE WITH PLUG
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机译：甲基丙烯酸共聚物及其生产方法，塑料光纤，塑料光纤电缆和带塞的塑料光纤电缆
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摘要
PROBLEM TO BE SOLVED: To stably and easily produce a methacrylic copolymer which is suitable as a core material of a plastic optical fiber and has a high refractive index and excellent optical characteristics while inhibiting the change in copolymer composition.;SOLUTION: In producing a copolymer of methyl methacrylate and benzyl methacrylate, raw materials including a monomer mixture comprising 0.1-99.9 mass% methyl methacrylate and 0.1-99.9 mass% benzyl methacrylate (the total amount of monomers being 100 mass%) and a free-radical polymerization initiator and if necessary further including a solvent are subjected to bulk polymerization or solution polymerization at 120-170°C to give a copolymer composition having a copolymer content of 30-70 mass%; then, volatile components are separated and removed from the copolymer composition.;COPYRIGHT: (C)2002,JPO
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