Patent ID: 7542644
Filing Date: 2009-06-02
Classification: C03C,G02B

Abstract:
1. A buffered optical fiber having a second coating layer on an outer peripheral surface of an optical fiber produced by providing a first coating layer on an outer peripheral surface of a glass fiber, wherein a second resin composition constituting the second coating layer comprises a base polymer, and 100 to 250 weight parts of metal hydroxide and 10 to 100 weight parts of a nitrogen-based flame retardant material per 100 weight parts of the base polymer, wherein the second resin composition does not contain halogenated materials and wherein the second resin composition comprises, as the base polymer, one of components selected from the group consisting of a mixture of polystyrene-based polymer and polyphenylene ether polymer, and a mixture of polystyrene-based elastomer and polyphenylene ether polymer.