Mitsubishi Rayon Company, Limited

Yasushi Fujishige

Yoshihiro Tsukamoto

Tsuyoshi Kimura

Amane Aoyagi

Mitsuhiro Matsuo

Rie Akihara

Yoshihito Tsukamoto

Yoshiko Maeda

A plastic optical fiber cable includes: a bare plastic optical fiber including a core formed of a polymer containing a methyl methacrylate unit, and a clad layer including a layer formed of a specific fluorine-containing olefin resin at least in the outermost layer; and a coating layer around the bare plastic optical fiber, the coating layer including a light-shielding coating layer formed of a specific nylon resin composition, a functional coating layer (C) and a functional coating layer (D) in this order, where one of the functional coating layer (C) and the functional coating layer (D) is formed of a resin composition (I) containing a polybutylene terephthalate resin as a major component or an ethylene-vinyl alcohol copolymer as a major component; the other is formed of a specific nylon resin composition (II); and a ratio of the thickness of the functional coating layer (C) to the thickness of the functional coating layer (D) is set to fall within a specific range.

Plastic optical fiber cable and method of transmitting signal

A plastic optical fiber cable includes: a bare optical fiber including a core made of a poly(methyl methacrylate) or a copolymer including methyl methacrylate as a major component and a cladding layer including, at least in the outermost layer, a layer made of a certain fluorine-containing olefin-based resin; and a coating layer provided on the outer surface thereof. The coating layer includes a protective coating layer, a light blocking coating layer, and a functional coating layer, the layers being provided in the order mentioned from inner side. The protective coating layer is made of a certain resin material. The light blocking coating layer is made of a nylon-based resin including, as a major component, nylon 11 or nylon 12, the nylon-based resin containing monomer and oligomer compounds derived from the nylon-based resin in an amount of a certain range. The functional coating layer is made of a nylon-based resin composition having a crystalline melting point within a certain range, the nylon-based resin composition containing a certain amount of melamine cyanurate or bromine atoms and further containing a certain amount of inorganic chromatic pigments, or the layer is made of a nylon-based resin composition having a crystalline melting point of within a certain range and an oxygen transmission rate within a certain range.

Plastic optical fiber cable and method of signal transmission using the same

The invention provides a plastic optical fiber cable comprising a plastic optical fiber having a core/clad structure, a light blocking coating layer provided around the plastic optical fiber, and a protective coating layer provided between the outermost layer of the core/clad structure and the light blocking coating layer. The outermost layer of the core/clad structure is made of a fluorine-containing olefin polymer containing at least a tetrafluoroethylene unit, the crystal melting heat of the fluorine-containing olefin polymer being 59 mJ/mg or lower. The light blocking coating layer is made of a resin primarily containing a polyamide resin, the content of polyamide resin-derived monomers and oligomers being 1.5% by weight or lower.

Plastic optical fiber cable

Growing community of inventors

Otake, Japan

Yasushi Fujishige