FIBRE OPTIC CABLE, METHODS OF MANUFACTURE AND USE THEREOF
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United States of America Patent
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Issued Date -
Sep 7, 2023
app pub date -
Aug 31, 2021
filing date -
Sep 3, 2020
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Abstract
A fibre optic cable (500, 700, 1420) comprises one or more fibre units (502, 1302). Each fibre unit comprises two or more optical fibres (506, 1306) embedded in a solid resin material (520, 1320) to form a coated fibre bundle and an extruded polymer sheath (524, 1324). The sheath (524, 1324) of each fibre unit is primarily polybutylene terephthalate (PBT), with a friction reducing additive such as polydimethylsiloxane (PDMS). The additive may be polythene based and/or polyacrylate based. The fibre unit may be applied in a pullback cable (500, 800, 1100), as a cable for pulling or pushing or as a blown fibre cable (502, 1302).
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