Abstract: A composite cable having, on the inside of a sheath, a tube and a plurality of cables. When said composite cable is suspended in a hoop shape with the entire composite cable as a cable to be tested, if the maximum value for the inner diameter of said hoop is measured as D1 and the inner diameter of the hoop at a position 100 mm from the top edge of the hoop when the hoop is subjected to a load of 1 kg is measured as D2, the condition D1?D2>70 mm is satisfied. The tube partially or entirely includes a layer made from porous polytetrafluoroethylene, and if the outer diameter and the inner diameter of the layer of the tube are respectively defined as (D) and (d), the condition (D?d)/D falls within the range of 0.27 to 0.75.

Abstract: The present disclosure relates to a heat-shrinkable tube having tearability, which is made of a fluororesin, and particularly, to a heat-shrinkable tube having excellent tear straightness. Further, the present disclosure relates to a tube having high heat-shrinkage rate at low temperature. A tube including at least a fluororesin as a base resin, in which the thickness of the entanglement unit of a polymer observed on a cross-section in a longitudinal direction of the tube after being shrunk at 200° C. by 35% or more is 1 ?m to 9 ?m, has excellent tear straightness.

Abstract: An object of the present invention is to provide a tube which can be easily torn and has a large heat-shrinkability at a low temperature. The tube of the present invention is a heat-shrinkable tube having tearability, including a mixture of a fluorine resin and a different kind of resin from the fluorine resin, in which an amount of change in loss energy, ?E loss, with change in temperature from 175° C. to 185° C. is a positive value.

Abstract: A pipe joint includes a joint main body, a cap nut, a sleeve, an insertion groove between a pipe body mounting section and an external thread section of the joint main body, and an elastic member disposed in the insertion groove. When the external thread section and an internal thread section of the cap nut are screwed, the end face of the distal end side of the sleeve comes into contact with one end face of the elastic member to compress the elastic member, and the elastic member presses, with a self-repulsion force, the end face of the distal end side of the sleeve in the axial direction. Then, an inner circumferential surface of a proximal end side of the sleeve compresses the pipe body in a radial direction of the pipe body through a reaction force received from a fitting surface of the cap nut.

Abstract: The present invention addresses the problem of significantly reducing torque between a cable and a connector, preventing breakage/damage to the cable, and thus increasing the durability and safety of the cable relative to the prior art when an end part of a cable is grasped and subjected to a bending or twisting action. The cable according to the present invention is provided with a cable body, a connector part attached to an end part of the cable body in the longitudinal direction thereof, and a cable holding device (strain relief) for covering a peripheral surface of the cable body, the cable holding device being provided so as to be able to rotate about the central axis of the cable body in relation to the cable body. When an operator grasps the cable holding device or a portion thereof and connects the connector part to a testing device, etc.

Abstract: A coiled cable (10) has a conductor coil (12) formed into a coil shape having a coil average diameter (D) by winding four conductor base lines (21-24} with a diameter (d) to each of which art insulating coating layer (42) is applied. The conductor coil (12) is set to have an spring index (D/d) represented by 2?D/d?4, and each of the conductor base lines (21-24) is configured by twisting a plurality of materials that have ?0.008 to ?0.05 and that are made of tough pitch copper, oxygen-free copper, or copper alloy wire.

Abstract: An object of the invention is to provide a cable support member having high durability and excellent manufacturing performance. A cable support member of the invention includes: a plurality of holding members; and an elastic member. Each holding member has an elastic member insertion passage through which the elastic member is inserted, and has joint surfaces enabling a rotation of the holding member with coming into contact with the adjacent holding members at both sides in the longitudinal direction. The elastic member is inserted through the elastic member insertion passages in the holding members so as to align and maintain the holding members, and exerts a compression force on the holding members. With such a configuration, a neutral state where the cable support member is substantially in a linear fashion and a curved state where the cable support member is bending-deformed are obtainable.

Abstract: Provided are a fluororesin composition having a low electrostatic propensity, and a fluororesin molded article having a low electrostatic propensity that is configured from a fluororesin composition. A thermoplastic fluororesin composition that comprises a fluororesin, two or more kinds of vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene terpolymers and an ionic liquid, wherein said terpolymers include a terpolymer selected from among terpolymers containing 30-45 mol % of vinylidene fluoride and a terpolymer selected from among terpolymers containing 5-25 mol % of vinylidene fluoride; and a fluororesin molded article.

Abstract: A transmission cable that enables an increase in the number of wires or a further reduction in the diameter while having the electrical characteristics equivalent to those of the conventional coaxial cable. The transmission cable includes four first coated conductor units and three second conductor units. One of the first coated conductor units is disposed at the center, and the remaining six units of the first coated conductor units and the second conductor units are disposed around the one first coated conductor unit disposed at the center so as to be adjacent to each other.

Abstract: An object of the invention is to provide a cable support member having high durability and excellent manufacturing performance. A cable support member of the invention includes: a plurality of holding members; and an elastic member. Each holding member has an elastic member insertion passage through which the elastic member is inserted, and has joint surfaces enabling a rotation of the holding member with coming into contact with the adjacent holding members at both sides in the longitudinal direction. The elastic member is inserted through the elastic member insertion passages in the holding members so as to align and maintain the holding members, and exerts a compression force on the holding members. With such a configuration, a neutral state where the cable support member is substantially in a linear fashion and a curved state where the cable support member is bending-deformed are obtainable.

Abstract: There is provided a transmission cable that enables an increase in the number of wires or a further reduction in the diameter while having the electrical characteristics equivalent to those of the conventional coaxial cable. The transmission cable includes four first coated conductor units, each of which is formed by a first conductor and a dielectric formed on the outer periphery of the first conductor, and three second conductor units, each of which has approximately the same diameter as the first coated conductor unit and is disposed adjacent to the dielectric. One of the first coated conductor units is disposed at the center, and the remaining six units of the first coated conductor units and the second conductor units are disposed around the one first coated conductor unit disposed at the center so as to be adjacent to each other.

Abstract: A flat cable including thin coaxial cables each having a center conductor and a jacket, parallel arranged two-dimensionally in a flat shape, and joined by tangling them with a weft yarn in units of predetermined number of very thin coaxial cables. The flat cable further includes tangling yarns that are arranged parallel along the edges in the width direction of the thin coaxial cables, and the elongation of the weft yarn is greater than that of the tangling yarn. When the very thin flat cable is bent, the bent portion of the weft yarn is elongated, and thereby the bent portion of the very thin coaxial cables can deviate from the mesh formed by the very thin coaxial cables and the weft yarn.

Abstract: The present invention is to significantly improve copper-foil adhesion strength (copper-foil peel strength) without roughening or blackening a copper-foil surface, and thereby to provide a copper-clad laminate used favorably in a high frequency range. The copper-clad laminate (101) for a single-sided printed-wiring board is formed by bonding a copper foil (4) onto a surface of an insulating substrate (2) with an LCP/PFA composite film (3) disposed in between. The insulating substrate (2) is made of a fluororesin prepreg 2A. The copper foil (4) is a rolled copper foil, the both surfaces of which are smooth and not roughened or blackened. The insulating substrate (2) and the copper foil (4) are bonded to each other with the composite film (3) disposed in between by firing and pressing them under temperature conditions which are 5° C. to 40° C. higher than the melting point of PFA and lower than the melting point of LCP.

Abstract: As a coaxial cable includes a dielectric layer around a center conductor, an outer conductor layer around the dielectric layer, and a sheath around the outer conductor layer, wherein the dielectric layer is made of unsintered polytetrafluoroethylene, and a metal foil imparting an increased shielding effectiveness and shape maintainability is provided between the dielectric layer made of the unsintered polytetrafluoroethylene and the outer conductor layer, it is possible to make it a high frequency coaxial cable which, having a very excellent low insertion loss, and also having a high shielding effectiveness against a signal leakage increasing an attenuation, can be bent easily and freely by hand without using a tool or the like while effectively maintaining an electrical characteristic for a high frequency signal and, after being bent, has an excellent shape maintainability in that bent condition, enabling an easy wiring work or connecting work by virtue of the excellent shape maintainability.

Abstract: In a flat-shaped cable in which many conductors or transmission lines arranged side by side are covered with and held between insulators or sheaths, the insulators or the sheaths are made of non-sintered or semi-sintered polytetrafluoroethylene, and are sintered and joined at web portions where the insulators or the sheaths are connected through the conductors or the transmission lines, and therefore, even if it is formed by using a PTFE sheet or an EPTFE sheet as an insulator or a sheath of the flat-shaped cable such as a flat cable, the flat-shaped cable can be made to have excellent bendability, flexibility or pliability, as well as excellent slidability.

Abstract: A roll cover of the invention is a tubular roll cover made of a thermoplastic fluoropolymer for covering a round rod-like or cylindrical roll body, wherein the thermoplastic fluoropolymer contains from 0.5 to 5% by weight of a carbon nanotube. Since the thermoplastic fluoropolymer thus contains from 0.5 to 5% by weight of the carbon nanotube, the roll cover of the invention can secure necessary conductivity, in other words, have low chargeability of static electrification, secure good antistatic property and prevent an offset phenomenon by static electrification. Further, flexibility, mold releasability, surface cleanability and the like inherent in an ordinary fluoropolymer can be maintained well.

Abstract: A flat cable of the invention in which at least end portions of a plurality of coaxial cables are securely arranged in parallel on a sheet is characterized in that the sheet is made to remain in a band shape across an entire width of the flat cable, at a middle portion of a flat cable edge-machined portion for electric connection of the coaxial cables. Accordingly, a plurality of coaxial cables exposed at an end portion of the flat cable by the cable end process have their middle portions, fixed to the sheet, made to remain in a band shape. This makes it difficult for the coaxial cables to be separated part at the end portion of the flat cable, and making it possible to well keep the pitch accuracy among the coaxial cables and easily and surely achieve complex and troublesome electric connection.

Abstract: A foaming composition can be provided which is a fluororesin composition comprising a fluororesin and an electrical insulating whisker and which is foamed by being mixed with a foaming agent to reduce a diameter of cells. Thus, the diameter of cells of the foam obtained by foaming can be reduced. Further, a coaxial insulated cable can be provided in which an insulator layer made of this foam is arranged around a central conductor.

Abstract: A foaming composition can be provided which is a fluororesin composition comprising a fluororesin and an electrical insulating whisker and which is foamed by being mixed with a foaming agent to reduce a diameter of cells. Thus, the diameter of cells of the foam obtained by foaming can be reduced. Further, a coaxial insulated cable can be provided in which an insulator layer made of this foam is arranged around a central conductor.

Abstract: Flat cables having an external diameter of coaxial cables of 0.15 to 0.35 ?m, at least a portion of the outer circumference of each coaxial cable fastened to a laminated sheet composed of a porous polytetrafluoroethylene. The flat cables are constructed so that these flat cables can pass via a through-hole with an internal diameter of 2.0 to 5.5 mm.