Communication cable having reduced jacket shrinkage
AssigneeFitel USA Corp.
InventorsLisa A. Dixon, Richard D. Small, Phillip M. Thomas, Peter A. Weimann
Life of this patent
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Abstract
A jacket for a communication cable is made from a resin that has high aspect ratio filler materials, and possibly coupling agents, dispersed therein. The fillers and the coupling agents reduce the post-extrusion shrinkage of the jacketing compound such that the strength members used in the communication cable need have only negligible compressive stiffness. The communication cable may further include a skin coating surrounding the outer jacket.
Claims29
A fiber optic cable comprising:
- an outer jacket for the cable, wherein the jacket comprises
- a resin;
- and
- high aspect ratio fillers occupying a predetermined volume of the jacket, and being configured to control post extrusion shrinkage of the jacket.
A fiber optic cable comprising:
- an outer jacket for the cable, wherein the jacket comprises
- a resin;
- high aspect ratio fillers occupying a predetermined volume of the jacket so as to control post extrusion shrinkage;
- and
- a coupling agent to aid adhesion between the fillers and the resin and to aid dispersion of the fillers.
A fiber optic cable comprising:
- an outer jacket for the cable, wherein the jacket comprises
- a resin, wherein the resin is selected from the group consisting of:
- polyethylenes, ethylene-vinyl acetate copolymers, impact-modified isotactic polypropylene, including copolymers of polypropylene and ethylene/propylene rubbers, and ethylene-ethyl acrylate copolymers;
- and
- high aspect ratio fillers occupying a predetermined volume of the jacket so as to control post extrusion shrinkage.
A fiber optic cable comprising:
- an outer jacket for the cable, wherein the jacket comprises
- a resin;
- and
- high aspect ratio fillers occupying a predetermined volume of the jacket so as to control post extrusion shrinkage, wherein the fillers are fibrous.
A fiber optic cable comprising:
- an outer jacket for the cable, wherein the jacket comprises
- a resin;
- and
- high aspect ratio fillers occupying a predetermined volume of the jacket so as to control post extrusion shrinkage, wherein the fillers are platelike.
A fiber optic cable comprising:
- an outer jacket for the cable, wherein the jacket comprises
- a resin;
- and
- high aspect ratio fillers occupying a predetermined volume of the jacket so as to control post extrusion shrinkage, wherein the fillers are organic.
A fiber optic cable comprising:
- an outer jacket for the cable, wherein the jacket comprises
- a resin;
- and
- high aspect ratio fillers occupying a predetermined volume of the jacket so as to control post extrusion shrinkage, wherein the fillers reduce post-extrusion shrinkage of the jacket by an order of magnitude.
A fiber optic cable comprising:
- an outer jacket for the cable, wherein the jacket comprises
- a resin;
- and
- high aspect ratio fillers occupying a predetermined volume of the jacket so as to control post extrusion shrinkage, wherein the fillers occupy a volume in the jacket up to 25%.
A fiber optic cable comprising:
- an outer jacket for the cable, wherein the jacket comprises
- a resin, and
- high aspect ratio fillers occupying a predetermined volume of the jacket so as to control post extrusion shrinkage;
- and
- a protective skin coating over the outer jacket.
A fiber optic cable comprising:
- an outer jacket for the cable, wherein the jacket includes
- a resin selected from the group consisting of:
- polyethylenes, ethylene-vinyl acetate copolymers, ethylene/propylene rubbers, ethylene-ethyl acrylate copolymers or impact-modified isotactic polypropylene, including copolymers of polypropylene and ethylene/propylene rubbers;
- fillers;
- and
- a coupling agent to aid adhesion between the fillers and the resin and to aid dispersion of the fillers.
Dependencies are inferred from the claim text.