Mantelmaterial für optische Fasern aus Kunststoff und damit hergestellte optische Fasern.

摘要

A cladding material for plastic optical fiber comprising a vinylidene fluoride-trifluoroethylene-hexafluoroacetone copolymer which comprises 3.5 to 6.5% by mole of hexafluoroacetone units, a molar ratio of vinylidene fluoride unit to trifluoroethylene unit of 3 to 6 : 1, and a melt index of 10 to 60 g/10 min, and a plastic optical fiber comprising said cladding material and a methyl methacrylate homopolymer or copolymer which comprises over 50% by weight of methyl methacrylate units as the core material.