Waterproof optical fiber cable
AssigneeMitsubishi Cable Industries, Ltd.
InventorsEiji Iri, Takashi Kaneko, Takeshi Shintani, Kotaro Mio, Yasuo Ijiri
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Abstract
An optical fiber cable comprising a water blocking layer, an optical fiber disposed inside the water blocking layer and a water blocking material filling the space between the water blocking layer and the optical fiber, the water blocking material comprising a grease having a worked penetration of [85] 300 to 475 as measured according to ASTM-D-712 at room temperature.
Claims3
An optical fiber cable comprising a water blocking layer, an optical fiber disposed inside the water blocking layer and a water blocking material filling the space between the water blocking layer and the optical fiber, the water blocking material comprising a grease having a worked penetration of .Badd.[150].Baddend. 300 to 450 at room temperature and of at least 85 at -30.degree. C. as measured according to ASTM-D-217, said grease comprising an organic liquid having a viscosity at 40.degree. C. of 6 to 5000.degree. c.st. and 3 to 35 parts by weight per 100 parts by weight of said organic liquid of a thickener.
Dependencies are inferred from the claim text.