Abstract: A cable includes a jacket, a shielding tape, a pair of wires, an inner and outer jacket layer, and a separator. The shielding tape includes a substrate and a plurality of conductive shield segments disposed on the substrate. The pair of wires form a twisted pair. The inner and outer jacket layers are extruded onto inner and outer surfaces, respectively, of the substrate. The substrate, the inner jacket layer and the outer jacket layer are bonded together into a single layer that defines a circumference. Each of the conductive shield segments: extends only partially around the circumference of the single layer; is longitudinally spaced from each longitudinally adjacent one of the conductive shield segments; is radially spaced from, and overlaps a portion of, each immediately circumferentially adjacent one of the conductive shield segments; and is embedded in at least one of the inner jacket layer and the outer jacket layer.

Abstract: A method for making a cable jacket that includes the steps of providing at least one shielding tape having a substrate formed of a substrate material, said substrate including at least one conductive segment; inserting the at least one shielding tape between first and second jacket layers of the cable jacket, each of said first and second jacket layers being formed of a jacket material; and co-extruding the at least one shielding tape with the first and second jacket layers, wherein the substrate material of the at least one shielding tape and the jacket material of the first and second jacket layers are the same such that during the co-extrusion step, the substrate and first and second jacket layers bond together into a single layer wherein the at least one conductive segment is embedded in the single layer.

Abstract: A method for making a cable jacket that includes the steps of providing at least one shielding tape having a substrate formed of a substrate material, said substrate including at least one conductive segment; inserting the at least one shielding tape between first and second jacket layers of the cable jacket, each of said first and second jacket layers being formed of a jacket material; and co-extruding the at least one shielding tape with the first and second jacket layers, wherein the substrate material of the at least one shielding tape and the jacket material of the first and second jacket layers are the same such that during the co-extrusion step, the substrate and first and second jacket layers bond together into a single layer wherein the at least one conductive segment is embedded in the single layer.

Abstract: A communication cable that comprises a jacket, a twisted wire group, and a single separator received in a core of the jacket. The separator includes a body that has first and second segments adapted to define quadrants in the communication cable. The first and second segments are substantially perpendicular to each other and define a junction point of the first and second segments. Each segment 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. An air pocket is defined between the terminal ends of the first and second segments. The air pocket includes a gap sized such that the air pocket is substantially enclosed, wherein the twisted wire group is prevented from entering the air pocket.

Abstract: A method for making a cable jacket that includes the steps of providing at least one shielding tape having a substrate formed of a substrate material, said substrate including at least one conductive segment; inserting the at least one shielding tape between first and second jacket layers of the cable jacket, each of said first and second jacket layers being formed of a jacket material; and co-extruding the at least one shielding tape with the first and second jacket layers, wherein the substrate material of the at least one shielding tape and the jacket material of the first and second jacket layers are the same such that during the co-extrusion step, the substrate and first and second jacket layers bond together into a single layer wherein the at least one conductive segment is embedded in the single layer.

Abstract: A cable jacket that comprises first and second jacket layers each formed of a jacket material. At least one shielding tape is embedded between the first and second jacket layers. The shielding tape is formed of a substrate material and the substrate material has at least one conductive segment.

Abstract: A communication cable that comprises a jacket, a twisted wire group, and a single separator received in a core of the jacket. The separator includes a body that has first and second segments adapted to define quadrants in the communication cable. The first and second segments are substantially perpendicular to each other and define a junction point of the first and second segments. Each segment 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. An air pocket is defined between the terminal ends of the first and second segments. The air pocket includes a gap sized such that the air pocket is substantially enclosed, wherein the twisted wire group is prevented from entering the air pocket.

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: A separator for a communication cable that has a body including at least one segment adapted to define at least first and second quadrants in the communication cable for separating wires. The at least one segment has at least one part with a first width. The at least one segment includes at least one geometric feature spaced from a terminal end of the segment. The geometric feature has a geometric shape defines a discrete portion of the segment. The geometric feature has a second width larger than the first width, whereby the difference between the first and second widths represents at least one reduced area of the body.

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: FEP compositions are provided that provide foam insulation in coaxial cable that surpasses the return loss obtained when PFA is used to make the foamed insulation, one composition comprising a blend of tetrafluoroethylene/hexafluoropropylene copolymers, one of said copolymers exhibiting a strip force of at least about 3 lbf (13.3 N) and another of said copolymers exhibiting a strip force no greater than about 2.5 lbf (11.1 N), said blend exhibiting a strip force of at least about 3 lbf (13.3 N), each said strip force being the force necessary to break adhesion between conductor and said one of said copolymers, said another of said copolymers, and said blend, respectively, and another composition comprising tetrafluoroethylene/hexafluoropropylene copolymer having an MFR of no greater than about 16 g/10 min and containing —CF3 end groups and an effective amount of wire affinity end groups to exhibit a strip force of at least about 3 lbf (13.

Abstract: The combination of a hinge and an insulated wire is provided, wherein the hinge is capable of closing and opening to an angle of at least 90°, the insulated wire being secured by the hinge so as to fold when said hinge is closed and to unfold when said hinge is opened, the insulation on the wire comprising fluoropolymer, such as tetrafluoroethylene/-hexafluoropropylene copolymer or tetrafluoroethylene/perfluoro(methyl vinyl ether)/perfluoro(propyl vinyl ether) copolymer, each polymer having a melting point of 260 to 290° C. and MIT Flex Life of at least about 15,000 cycles, the hinge being useful in such electronic devices as a laptop computer or a clamshell cell phone, attaching the keyboard and screen portion to one another, the insulation being capable of repeated opening and closing of the hinge without cracking of the insulation.

Abstract: Communication cable is provided comprising a twisted pair of polymer insulated conductors, the twisting to form the twisted pair forcing the surface of polymer insulation of each polymer-insulated conductor of said polymer-insulated conductors into contact with one another, the polymer insulation of each polymer-insulated conductor including (i) a foamed portion being crushable by the forcing together of the contacting surfaces of the polymer insulation of each of the polymer-insulated conductors and (ii) a crush-resistant portion extending radially within said insulation into the foamed portion and being present where the surface of the polymer-insulated conductors are into said contact with one another, thereby protecting the foamed portion from crushing by the forcing together of the contacting surfaces.

Abstract: FEP compositions are provided that provide foam insulation in coaxial cable that surpasses the return loss obtained when PFA is used to make the foamed insulation, one composition comprising a blend of tetrafluoroethylene/hexafluoropropylene copolymers, one of said copolymers exhibiting a strip force of at least about 3 lbf (13.3 N) and another of said copolymers exhibiting a strip force no greater than about 2.5 lbf (11.1 N), said blend exhibiting a strip force of at least about 3 lbf (13.3 N), each said strip force being the force necessary to break adhesion between conductor and said one of said copolymers, said another of said copolymers, and said blend, respectively, and another composition comprising tetrafluoroethylene/hexafluoropropylene copolymer having an MFR of no greater than about 16 g/10 min and containing —CF3 end groups and an effective amount of wire affinity end groups to exhibit a strip force of at least about 3 lbf (13.

Abstract: Communication cable is provided comprising a twisted pair of polymer insulated conductors, the twisting to form the twisted pair forcing the surface of polymer insulation of each polymer-insulated conductor of said polymer-insulated conductors into contact with one another, the polymer insulation of each polymer-insulated conductor including (i) a foamed portion being crushable by the forcing together of the contacting surfaces of the polymer insulation of each of the polymer-insulated conductors and (ii) a crush-resistant portion extending radially within said insulation into the foamed portion and being present where the surface of the polymer-insulated conductors are into said contact with one another, thereby protecting the foamed portion from crushing by the forcing together of the contacting surfaces.

Abstract: A communications cable is provided that reduces the additive distortion of intended information encoded as electromagnetic energy that propagates longitudinally along the cable by varying the propagation velocity along its length. The additive distortion is reduced by varying the propagation periodically at a frequency that is lower than the highest frequency at which said electromagnetic energy propagates along said cable.

Abstract: The combination of a hinge and an insulated wire is provided, wherein the hinge is capable of closing and opening to an angle of at least 90°, the insulated wire being secured by the hinge so as to fold when said hinge is closed and to unfold when said hinge is opened, the insulation on the wire comprising fluoropolymer, such as tetrafluoroethylene/-hexafluoropropylene copolymer or tetrafluoroethylene/perfluoro(methyl vinyl ether)/perfluoro(propyl vinyl ether) copolymer, each polymer having a melting point of 260 to 290° C. and MIT Flex Life of at least about 15,000 cycles, the hinge being useful in such electronic devices as a laptop computer or a clamshell cell phone, attaching the keyboard and screen portion to one another, the insulation being capable of repeated opening and closing of the hinge without cracking of the insulation.

Abstract: A method of constructing twisted pair cables having an average impedance of no less than 97.5.OMEGA. and no more than 102.5.OMEGA. is disclosed. The longest lay length pair is used as a base reference and the construction of each additional twisted pair is altered to better match the averaged impedance. Specifically, the insulated conductor thickness T.sub.i of each twisted pair is adjusted, dependent upon the configuration of the base pair.

Abstract: The present invention relates to a flat-type communication cable for carrying frequencies in excess of 4 Mhz. The cable has a plurality of longitudinally extending conductor passageways positioned side-by-side and preferably at least four passageways such that there are two end longitudinal passageways and a plurality of side-by-side intermediate passageways. Each passageway has a longitudinally extending opening which opens to an adjacent passageway. There are twisted pair conductors loosely located in each of the passageways with not more than one twisted pair conductor being in each passageway. Each twisted pair conductor has a cross-sectional envelope area less than a cross-sectional envelope area of the passageway in which the twisted pair is contained.

Abstract: A plenum cable having a plurality of twisted pair conductors with at least one pair having a non-fluorinated polyolefin insulation and all of the twisted pair conductors which are adjacent to each other having a lay length of about 0.4 to 4" with the preferred lay length being 0.4 to 1.25 inches. The lay length of the non-fluorinated polyolefin twisted pair conductor is preferably 1.0 to 1.25 inches and the lay lengths of the fluorinated polyolefin twisted pair conductors is preferably 0.5 to 85". The twisted pair conductor insulation is preferably radially joined along the entire length thereof. Preferably, the twisted pair conductors all have an impedance of 90 to 110 ohms and the impedance does not vary by more or less than .+-.0.05 of an average impedance. Also, the twisted pair conductors preferably have a center-to-center distance that does not vary by more or less than .+-.0.03 of an average center-to-center distance.