Nexans

Paul Kroushl

Qibo Jiang

Thierry Auvray

David Keller

Jérôme Alric

Mikael Abeguile

Joshua Keller

Greg Heffner

Randie Yoder

Olivier Pinto

Dan Rouse

Alfred Gemmel

Friedrich Müller

Christian Lankes

Susanne Brix

Wayne Y Chu

Fredric Jean

Kathy Perevosnik

Jérome Alric

Oliver Pinto

Jerôme Alric

A cable includes a first twisted pair of insulated conductors having a first lay length and a second twisted pair of insulated conductors having a second lay length, where the second lay length is longer than the first lay length. At least one jacket covers the pairs. An additive is added to the insulation of the conductors of the second twisted pair so that the dielectric constant of the insulation of the conductors of the second twisted pair is raised relative to the dielectric constant of the insulation of the conductors of the first twisted pair resulting in a reduced skew between the first and second twisted pairs.

FEP modification to reduce skew in data communications cables

A communications cable includes a jacket and a plurality of twisted pairs, each twisted pair having two insulated conductors twisted around one another. A cross-filler is arranged between the twisted pairs, where the cross filler is constructed of a PVC formulation using a halogenated plasticizer as the primary plasticizer and having a dissipation factor below 0.01 at frequencies between 100 MHz to 500 MHz.

LAN cable with PVC cross-filler

The present arrangement provides a communication cable having a plurality of twisted pair communication elements, a jacket surrounding the twisted pairs and a shield element disposed between the pairs and the jacket. The shield element is constructed as a tape substrate with a plurality of foil shielding elements disposed thereon, the foil shielding elements being formed in the shape of triangles and arranged on the substrate with at least a first foil shield element having a base of its triangle shape disposed substantially parallel to a longitudinal edge of the tape substrate. Each subsequent triangle is disposed on the tape substrate at a distance apart from the first triangle foil shielding element with a base of its triangle shape disposed substantially parallel to an opposite longitudinal edge of the tape substrate.

Discontinuous shielding tapes for data communications cable

A multi-tube optical fiber cable has a core with a first set of one or more optical fiber tubes, each having one or more optical fibers loosely arranged therein. The first set of tubes is constructed of a polymer having a low Young's constant modulus. The core also includes at least two strength members with a first binder arranged around the first set of optical fiber tubes and the strength members, where the first binder is substantially flat in shape such that there is no deformation of the first set of tubes, and where the strength members are offset from a central axis of the cable. The cable maintains a second set of a plurality of optical fiber tubes, each having one or more optical fibers loosely arranged therein, arranged around the outer circumference of the core.

Fiber optic cable with improved flexibility, low temperature and compression resistance

A cable is provided containing one or more polymeric elements for reduction of crosstalk. The cable includes a plurality of unshielded twisted pairs, each of which is an insulated conductor pair twisted around one another, each having a different lay length. A jacket encloses the plurality of unshielded twisted pairs, where an unshielded twisted pair, has the longest lay length among the plurality of unshielded twisted pairs is positioned within the center of the jacket such that an axis of the twisted pairs that has the longest lay length substantially coincides with the central longitudinal axis of the cable. A plurality of bumper elements are disposed within the jacket in the interstices between said plurality of unshielded twisted pairs, where the bumper elements are profiled polymer structures.

Profile filler tubes in LAN cables

A communications cable has a jacket, a plurality of twisted pairs, each twisted pair having two insulated conductors twisted around one another. A cross-filler is arranged between the twisted pairs where the cross-filler is constructed of PEI (polyetherimide).

LAN cable with PEI cross-filler

A cable is provided with a first twisted pair of insulated conductors having a first lay length and a first insulation resulting in a first signal propagation rate and a second twisted pair of insulated conductors having a second lay length and a second insulation resulting in a second signal propagation rate. The second signal propagation rate is faster than the first signal propagation rate resulting a first amount of signal skew between signals travelling through the first twisted pair and the second twisted pair. A jacket covers the pairs. Titanium dioxide is added to the insulation of the conductors of the second twisted pair so that the dielectric constant of the insulation of the conductors of the second twisted pair is raised, lowering the second signal propagation rate, resulting in a second amount of signal skew which is less than the first amount of signal skew.

FEP modification using titanium dioxide to reduce skew in data communications cables

A communications cable having a jacket and a plurality of twisted pairs, each twisted pair having two insulated conductors twisted around one another, where on at least one twisted pair, the insulation on the conductors of the pair is a two layer insulation with a first inner layer of polyolefin and a second outer layer of imide polymer.

LAN cable with dual layer PEI/FRPP insulation for primary conductors

A fiber optic cable is provided with a plurality of buffer tubes each with one or more optical fibers, a plurality of strength members and a jacket. The fibers within the cable meet maximum attenuation of substantially 0.07 db increase when decreasing from &#x2212;23&#xb0; C. to &#x2212;60&#xb0; C.

Fiber optic cable with improved low temperature and compression resistance

A cable jacket includes an extruded polymer made from PVDF, PVC and a compatibilizing agent, where a ratio of PVDF, PVC and a compatibilizing agent is substantially 7:3:1.

PVDF/PVC alloys for plenum cable applications

A composite cable includes at least two optical fiber components and at least one additional component. An irradiated crosslinked jacket surrounds the optical fiber component and the at least one additional component. A shield encloses at least the two optical fiber components within the jacket, where the shield protects the optical fibers from irradiation of the crosslinked jacket.

Composite, optical fiber, power and signal tactical cable

A process for the production of a moulding composed of foamed polytetrafluoroethylene by means of an extruder, includes introducing a foaming agent, which brings about foaming, into the polytetrafluoro-ethylene, where the extruder used includes a commercially available extruder, to which a thermoplastically processable, fusible polytetrafluoroethylene is fed, the polytetrafluoroethylene is fed to the extruder together with a foaming agent which has chemical action and which has a decomposition temperature of at least 320&#xb0; C., and after its discharge from the extruder, the moulding is drawn off in the direction of production without any further measures relating to the foaming procedure.

Process for the production of a moulding composed of foamed polytetrafluoroethylene

A foaming composition comprising a melt processible fluoropolymer, and a chemical foaming agent, where the chemical foaming agent is ammonium polyphosphate.

High processing temperature foaming polymer composition

A foaming composition includes a fluoropolymer, a nucleating agent and a pigment, wherein said pigment is a manganese-antimony-titanium (Mn&#x2014;Sb&#x2014;Ti) oxide pigment.

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Lancaster, PA, United States of America

Paul Kroushl