Abstract: Novel additive systems for metallocene based filled cable insulation are disclosed. These systems provide excellent protection against thermal degradation, better cure state and reduced dissipation factor after prolonged heat exposure. The additives may contain one or more hindered amine light stabilizers and amine antioxidants.

Abstract: Manufactured articles and methods of producing such articles are disclosed where the article has a thermoplastic polymer component and a curable polymer component. The curable polymer may be moisture-curable polymer, or microwave, dielectric or radio frequency curable polymer. The articles may be manufactured by a variety of polymer processing methods including extrusion, co-extrusion, co-molding, injection molding and calendering. A variety of articles and shapes may be made by the method including electric wire and cable, and weatherstripping.

Abstract: A shielded electrical wire and device and method for making the same is disclosed.

Abstract: Manufactured articles and methods of producing such articles are disclosed where the article has a thermoplastic polymer component and a curable polymer component. The curable polymer may be moisture-curable polymer, or microwave, dielectric or radio frequency curable polymer. The articles may be manufactured by a variety of polymer processing methods including extrusion, co-extrusion, co-molding, injection molding and calendering. A variety of articles and shapes may be made by the method including electric wire and cable, and weatherstripping.

Abstract: A separator for a communication cable that comprises a body that includes at least first and second segments adapted to define a plurality of quadrants in the communication cable. The segments are substantially perpendicular to each other and define a junction point of the segments. Each of the segments includes a main portion and a terminal end remote from the junction point of the segments. Each of the terminal ends has a shape such that each of the terminal ends is wider than the main portions of the segments. At least one air pocket is defined between the terminal ends of the segments. The air pocket includes a gap sized such that the air pocket is substantially enclosed.

Abstract: An insulation shield material is provided having improved performance without the need for expensive additives, complex polymer formulations, or specially prepared carbon black. The semiconductive composition used to make the strippable semiconductive insulation shield layer in contact with the outer surface of a wire and cable insulation layer has a base polymer having a weight average molecular weight of not more than 200,000, an adhesion modifying additive system having at least two components and a conductive carbon black. Each of the adhesion modifying additive system components is different from the base polymer. The first component of the adhesion modifying additive system contains a hydrocarbon wax or ethylene vinyl acetate wax and the second component of the adhesion modifying additive system contains an amide wax.

Abstract: A jacket for a data cable that comprises a main jacket body having an inner area for receiving one or more filaments and a central longitudinal axis. The main body has an inner surface that surrounds the inner area and an opposite outer surface. At least one longitudinal opening extends through the main jacket body between the inner and outer surfaces and substantially parallel to the central longitudinal axis of the main jacket body. The longitudinal opening is substantially enclosed within the main jacket body.

Abstract: An electrical cable for shipboard use that can block water is disclosed. The electrical cable includes conductors, water swellable tapes, water swellable yarns, solid fillers, and a jacket. Each conductor is substantially wrapped with water swellable tape. The conductors are disposed adjacent to each other thereby forming interstitial voids between each of the conductors. Solid fillers and water swellable yarns are alternatively disposed in each interstitial void. Additional water swellable tape substantially envelopes the conductors, water swellable yarns, and solid fillers. The jacket is disposed on the outermost peripheral surface of the electrical cable.

Abstract: Novel additive systems for metallocene based filled cable insulation are disclosed. These systems provide excellent protection against thermal degradation, better cure state and reduced dissipation factor after prolonged heat exposure. The additives may contain one or more hindered amine light stabilizers and amine antioxidants.

Abstract: A self-healing cable comprising a conductor and a water-swellable composition surrounding said conductor is disclosed. When the cable is damaged and water ingress reaches the water-swellable composition, the water-swellable composition expands and fills in any void, puncture or crack present, thus sealing the damage in the cable. In one embodiment, the water-swellable composition is formed from an admixture of a substantially non-water-swellable polymer and a water-swellable filler. In another embodiment, the water-swellable composition is formed from a water-swellable polymer.

Abstract: Novel additive systems for lead-free filled cable insulation are disclosed. These systems provide improved electrical and mechanical properties. The composition contains a base polymer of a polyethylene and an elastomer, a filler, and additives of hindered amine light stabilizers and phenolic antioxidants.

Abstract: An electrical cable includes a cable jacket defining a central longitudinal axis and a plurality of twisted pairs of insulated conductors oriented longitudinally within the cable jacket. Each of the twisted pairs of insulated conductors has a width. A filler element is disposed in the cable jacket and is located adjacent to at least one of the twisted pairs of insulated conductors. The filler element defines a width that is substantially larger than the width of each the twisted pairs of insulated conductors. The filler element has a central axis laterally offset from the central longitudinal axis of the cable jacket. The filler element reduces alien crosstalk from an adjacent cable. A separator is disposed in said cable jacket between the twisted pairs of insulated conductors to reduce crosstalk between the twisted pairs of insulated conductors.

Abstract: A data cable includes conductors and a filler material substantially surrounding the conductors. The filler material includes a foam filler and a water blocking material. The data cable can also include insulation substantially surrounding each conductor, foam substantially surrounding each conductor, or a solid coating substantially surrounding each conductor The data cable can further include a shielding member substantially surrounding the filler material or a jacket substantially surrounding the filler material.

Abstract: An improved fault protected electric power cable is disclosed. In the improved fault protected electric power cable, there are at least two insulated power conductors and an uninsulated ground conductor wherein the ground conductor and the insulated power conductors are all in electrical contact with a conductive polymer composition. If an electrical fault occurs in one of the power conductors the conductive polymer composition will carry the current to the ground conductor.

Abstract: An electrical cable for shipboard use that can block water is disclosed. The electrical cable includes conductors, water swellable tapes, water swellable yarns, solid fillers, and a jacket. Each conductor is substantially wrapped with water swellable tape. The conductors are disposed adjacent to each other thereby forming interstitial voids between each of the conductors. Solid fillers and water swellable yarns are alternatively disposed in each interstitial void. Additional water swellable tape substantially envelopes the conductors, water swellable yarns, and solid fillers. The jacket is disposed on the outermost peripheral surface of the electrical cable.

Abstract: Communication cables are provided in which a core lay length of the cable varies along the cable length. The cable may be provided with different segments that have different core lay lengths. It is desirable for neighboring core lay lengths in a cable to differ by a factor of two, to enable a reduction in power-sum alien near-end crosstalk (PSANEXT) when two cables are installed alongside one another. Segments of the cable having different core lay lengths may be spaced periodically along the length of the cable, and the periodicity of the spacing may be altered by a jitter distance. The introduction of jitter into the periodicity of the spacing of the segments increases the likelihood that a beneficial placement of core lay lengths will occur when two or more cables are installed alongside one another.

Abstract: An electrical cable includes a cable jacket defining a central longitudinal axis and a plurality of twisted pairs of insulated conductors oriented longitudinally within the cable jacket. Each of the twisted pairs of insulated conductors has a width. A filler element is disposed in the cable jacket and is located adjacent to at least one of the twisted pairs of insulated conductors. The filler element defines a width that is substantially larger than the width of each the twisted pairs of insulated conductors. The filler element has a central axis laterally offset from the central longitudinal axis of the cable jacket. The filler element reduces alien crosstalk from an adjacent cable.

Abstract: A cable includes a plurality of twisted pairs of insulated conductors, and an insulating cable jacket that has a central longitudinal axis encloses the twisted pairs of insulated conductors. The cable jacket defines an inner perimeter that surrounds the twisted pairs of insulated conductors that is substantially circular in section transverse to the central longitudinal axis and an outer perimeter that is substantially non-circular in section transverse to the central longitudinal axis. The outer perimeter includes at least one raised area for maintaining spacing from an adjacent cable, thereby reducing alien crosstalk.

Abstract: Manufactured articles and methods of producing such articles are disclosed where the article has a thermoplastic polymer component and a curable polymer component. The curable polymer may be moisture-curable polymer, or microwave, dielectric or radio frequency curable polymer. The articles may be manufactured by a variety of polymer processing methods including extrusion, co-extrusion, co-molding, injection molding and calendering. A variety of articles and shapes may be made by the method including electric wire and cable, and weatherstripping.

Abstract: A semiconductive resin composition for use as a semiconductive layer in contact with a crosslinked wire and cable insulation layer is disclosed for use where the insulation layer is crosslinked using a peroxide cure system. The resin has a two component base polymer where the first component has a weight average molecular weight of not more than 200,000. The second component is either a polymer having a melting point between 110° C. and 130° C. or a nitrile rubber. The composition also has an adhesion modifying compound different from the base polymer and carbon black. Methods of making the composition and cables using the composition are also disclosed.