Water blocking gels compatible with polyolefin optical fiber cable buffer tubes and cables made therewith
First Claim
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1. An optical fiber cable comprising:
- a buffer tube made from a polyolefin resin material;
at least one optical fiber disposed in the buffer tube; and
a water blocking gel disposed in the buffer tube, wherein the water blocking gel further comprises a polyolefin oil, a thixotropic agent and a thermal oxidation stabilizer, wherein less than about 3 weight percent of the polyolefin species in the oil have a molecular weight below about 2000.
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Abstract
A water blocking gel which is compatible with polyolefin optical fiber cable buffer tubes is disclosed. The water blocking gel comprises a polyolefin oil, wherein only a very small fraction of the polyolefin species have a molecular weight below about 2000. The gel also includes a thixotropic agent, and a thermal oxidation stabilizer. The gel is relatively low cost, does not cause substantially swelling of the polyolefin buffer tubes in contact therewith and does not degrade the buffer tube'"'"'s physical properties.
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Citations
21 Claims
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1. An optical fiber cable comprising:
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a buffer tube made from a polyolefin resin material; at least one optical fiber disposed in the buffer tube; and a water blocking gel disposed in the buffer tube, wherein the water blocking gel further comprises a polyolefin oil, a thixotropic agent and a thermal oxidation stabilizer, wherein less than about 3 weight percent of the polyolefin species in the oil have a molecular weight below about 2000. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A water blocking gel for disposition in a polyolefin optical fiber cable buffer tube, the water blocking gel comprising:
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a polyolefin oil, wherein less than about 3 weight percent of the polyolefin species in the oil have a molecular weight below about 2000; a thixotropic agent; and a thermal oxidation stabilizer. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification