An insulated wire, containing: a rectangular conductor; and a thermoplastic resin layer on the rectangular conductor, wherein an adhesion strength between the thermoplastic resin layer and the rectangular conductor for a pair of sides of the rectangular conductor opposed to and an adhesion strength between the thermoplastic resin layer and the rectangular conductor for the other pair of sides of the rectangular conductor opposed to are different from each other.

Various embodiments are described herein for a micro-antenna comprising a first substrate layer having a first antenna winding trace thereon: a second substrate layer having a second antenna winding trace thereon; and at least two couplers to couple the first and second antenna winding traces. Various embodiments are also described for a multilayer receiver that incorporates any of the micro-antenna embodiments described herein and microcircuitry.

A polyimide precursor solution includes a polyimide precursor that is a polymer of an aromatic tetracarboxylic dianhydride and an aromatic diamine compound, resin particles, an aqueous solvent containing water, and an amine compound having a boiling point of equal to or higher than 250° C. and equal to or lower than 300° C., in which a ratio of a volume of the resin particles to a volume of the amine compound (volume of resin particles/volume of amine compound) is equal to or more than 0.22 and equal to or less than 0.61.

A cable apparatus having an increased linear pullout resistance and related methods is disclosed. The apparatus includes a metal tube. At least one conductor is positioned within the metal tube. An armor shell is positioned exterior of the metal tube and the at least one conductor. A polymer material is abutting the metal tube, wherein the polymer material includes therein at least one additive, wherein the polymer material with the at least one additive remains substantially inert during a recrystallization process.

An insulated electric wire includes a rectangular conductor and an insulation film disposed on the periphery of the rectangular conductor. The insulation film is characterized by: the provision of a resin containing an imide structure within a molecule; and a peak value of less than 1.0 for the loss tangent tan δ, which is represented by the ratio between the loss elastic modulus and the storage elastic modulus, as measured in the 50 DEG C. to 400 DEG C. range.

In a communication cable having a multi-core cable with a plurality of core cables in which a pair of signal lines are covered with an insulator, in which the insulator is covered with a shield tape, and in which the shield tape is covered with a wrapping tape, and having a connector formed on an end portion of the multi-core cable, the communication cable further has a case which is inserted/removed to/from a slot formed on a communication device to which the communication cable is connected, a substrate which is housed in the case and to which an end portion of the multi-core cable is connected, and a resin portion which molds a connection portion between the end portion of the multi-core cable and the substrate.

A foam molding composition from which a foam molded body and a foamed electric wire can be produced having excellent heat resistance, a small average cell size, a high foaming ratio, and good outer diameter stability. The foam molding composition includes a resin (A) having a pyrolysis temperature of 330° C. or higher and at least one compound (B) selected from phosphoric acid esters and salts thereof and phosphoric acid ester complex compounds. Also disclosed is a foam molded body obtained from the foam molding composition, an electric wire including a core wire and a covering material covering the core wire obtained from the foam molding composition, and a method for producing the foam molded body.

A high-voltage insulator has an insulating body which is arranged around a high-voltage conductor. The high-voltage insulator has a damping chamber which at least partially engages around the insulating body and which is filled with an electrically insulating damping medium for damping an action of external mechanical force on the insulating body. A transformer bushing for routing a high-voltage conductor out of a transformer housing in an electrically insulating manner is further disclosed. The transformer bushing is characterized in that the transformer bushing contains a high-voltage insulator.

A high-voltage insulator has an insulating body which is arranged around a high-voltage conductor. The high-voltage insulator has a damping chamber which at least partially engages around the insulating body and which is filled with an electrically insulating damping medium for damping an action of external mechanical force on the insulating body. A transformer bushing for routing a high-voltage conductor out of a transformer housing in an electrically insulating manner is further disclosed. The transformer bushing is characterized in that the transformer bushing contains a high-voltage insulator.

The invention relates to a device comprising a cable and/or a cable accessory, said cable and/or cable accessory containing at least one insulating and fire-resistant layer, as well as to a method for manufacturing a cable and/or accessory of said type.