Low shrink telecommunications cable and methods for manufacturing the same
First Claim
Patent Images
1. A telecommunications cable comprising:
- at least one member for carrying a telecommunications signal; and
a layer surrounding the member, the layer including a thermoplastic base material and a liquid crystal polymer embedded within the base material for resisting shrinkage of the base material, the liquid crystal polymer constituting less than 2% of the layer by weight.
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Abstract
The present disclosure relates to a telecommunications cable having a layer constructed to resist post-extrusion shrinkage. The layer includes a plurality of discrete shrinkage-reduction members embedded within a base material. The shrinkage-reduction members can be made of a liquid crystal polymer. The disclosure also relates to a method for manufacturing telecommunications cables having layers adapted to resist post-extrusion shrinkage.
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Citations
24 Claims
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1. A telecommunications cable comprising:
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at least one member for carrying a telecommunications signal; and
a layer surrounding the member, the layer including a thermoplastic base material and a liquid crystal polymer embedded within the base material for resisting shrinkage of the base material, the liquid crystal polymer constituting less than 2% of the layer by weight. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A telecommunications cable comprising:
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at least one member for carrying a telecommunications signal; and
a layer surrounding the member, the layer including a thermoplastic base material and a plurality of discrete shrinkage-reduction members embedded within the thermoplastic base material, at least some of the shrinkage-reduction members having lengths in the range of 0.2-100 mm, and the shrinkage-reduction members including a liquid crystal polymer. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A telecommunications cable comprising:
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an optical fiber;
a strength layer for providing the cable with tensile reinforcement; and
an outer jacket surrounding the optical fiber and the strength layer, the jacket including a thermoplastic base material and a plurality of discrete shrinkage-reduction members embedded within the thermoplastic base material, the shrinkage-reduction members including a liquid crystal polymer. - View Dependent Claims (23)
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24. A method for manufacturing a fiber optic cable comprising:
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mixing a base material and a shrinkage reduction material in an extruder;
extruding the mixture of the base material and the shrinkage reduction material through an extrusion die;
reshaping the shrinkage reduction material into a plurality of elongated reinforcing members as the base material and the shrinkage reduction material are extruded through the extrusion die, wherein the shrinkage reduction members include a plurality of discrete shrinkage-reductions members each having a length that coincides with only a relatively small segment of a total length of the fiber optic cable.
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Specification