H01B13/148

Method of manufacturing a nano metal wire

Disclosed is a method of manufacturing a nano metal wire, including: putting a metal precursor solution in a core pipe of a needle; putting a polymer solution in a shell pipe of the needle, wherein the shell pipe surrounds the core pipe; applying a voltage to the needle while simultaneously jetting the metal precursor solution and the polymer solution to form a nano line on a collector, wherein the nano line includes a metal precursor wire surrounded by a polymer tube; chemically reducing the metal precursor wire of the nano line to form a nano line of metal wire surrounded by the polymer tube; and washing out the polymer tube by a solvent.

Method of manufacturing a non-circular electrical cable having a reduced pulling force

In various embodiments, a non-circular electrical cable having a reduced pulling force attributable to the exterior surface of an outer sheath, and method of producing the same is provided. In various embodiments, an outer sheath of the cable may comprise a first and second sheath layer, the second sheath layer being located external to the first sheath layer, and comprising a nylon material configured to reduce the pulling force necessary for installing the cable. In various embodiments, the first sheath layer may be extruded using a tube extrusion method into a substantially circular shape, and the second sheath layer may be extruded using a pressure extrusion methods onto the exterior surface of the first sheath layer while maintaining the at least substantially circular shape of the sheath. The sheath may then be pulled onto the surface of a plurality of conductors to form the non-circular electrical cable.

Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force
11328843 · 2022-05-10 · ·

A process for manufacturing finished wire and cable having reduced coefficient of friction and pulling force during installation, includes providing a payoff reel containing at least one internal conductor wire; supplying the at least one internal conductor wire from the reel to at least one extruder; providing the least one extruder, wherein the least one extruder applies an insulating material and a polymerized jacket composition over the at least one internal conductor wire, wherein the polymerized jacket composition comprises a predetermined amount by weight of nylon; a predetermined amount by weight of mineral oil in the range of 0.1% to 5% by weight; and a predetermined amount of silica in the range of 2% to 9% by weight; providing a cooling device for lowering the temperature of the extruded insulating material and the polymerized jacket composition and cooling the insulating material and the polymerized jacket composition in the cooling device; and, reeling onto a storage reel the finished, cooled, wire and cable for storage and distribution.

Cable jacket
11322279 · 2022-05-03 · ·

The present invention relates to a cable jacket comprising a random heterophasic propylene copolymer, wherein said copolymer comprises a matrix (M) being a random propylene copolymer (R-PP) and dispersed therein an elastomeric propylene copolymer (E), wherein the random propylene copolymer (R-PP) has a melt flow rate MFR2 (230° C./2.16 kg) of 0.1 to 10.0 g/10 min and wherein the elastomeric propylene copolymer (E) has a comonomer content in the range of 40.0 to 55.0 mol %, and wherein said copolymer has MFR2 (230° C.) in the range of from 0.5 to 15 g/10 min, flexural modulus below 400 MPa, and relaxation spectrum index (RSI) at 200° C. below 20.0. The present invention further relates to a telecommunication cable comprising said jacket.

POWER CORD ASSEMBLY CONTAINING RECYCLED AND RENEWABLE POLYMERIC COMPOSITIONS
20220130570 · 2022-04-28 · ·

A power cord assembly having a total recycled and renewable content of at least 25 wt. % is described. The power cord assembly can contain a plug at a first end of the power cord configured to be connected to a power source, a connector part at a second end of the power cord opposite to the plug and configured to be connected to an electrical or electronic device, one or more electrically conductive wires extending from the plug to the connector part, one or more insulators surrounding the one or more electrically conductive wires, and an outer jacket extending from the plug to the connector and surrounding the one or more insulators, where at least one of the plug, the connector part, the insulator, or the outer jacket contains a chemically recycled and/or renewably sourced thermoplastic block co-polymer elastomer.

Cable
11763962 · 2023-09-19 · ·

An insulating cable having a conductor and an insulator configured by a plurality of resin layers on the conductor, wherein the plurality of resin layers contain the same kind of fluorine resin, a difference in refractive index between a resin layer having the largest refractive index and a resin layer having the smallest refractive index among the plurality of resin layers is 0.03 or less, a layer thickness of an outermost resin layer of the insulator is 0.03 mm or less, and a deviation (coefficient of variation CV) in thickness of the insulator in a cross-section perpendicular to a longitudinal direction of the cable is 0.035 or less.

Paste containing polytetrafluoroethylene and method for producing same

The present invention aims to provide a paste containing polytetrafluoroethylene which can be formed into a molded polytetrafluoroethylene article having a significantly small thickness of polytetrafluoroethylene and is less likely to cause defects in molding; and a method of producing the paste. The present invention provides a method of producing a paste, including the steps of coagulating primary particles of polytetrafluoroethylene in an aqueous dispersion that contains the primary particles and water to form slurry that contains secondary particles of polytetrafluoroethylene and water or secondary particles of polytetrafluoroethylene floating in water; and adding an organic solvent to at least one of the slurry and the secondary particles of polytetrafluoroethylene floating in water to provide the paste.

FLEXIBLE CABLE WITH STRUCTURALLY ENHANCED CONDUCTORS
20220029393 · 2022-01-27 · ·

In an electrical cable of the type having an outer sheath enclosing a conductor assembly comprising a plurality of insulated conductors disposed within a binder, the binder having a crush resistance for protecting the insulated conductors, an improvement in which a strength enhancer is applied such that the binder can be removed without decreasing a crush resistance of the electrical cable.

Power cable polymer composition comprising thermoplastic and having advantageous properties

The invention relates to power cable polymer composition which comprises a thermoplastic polyethylene having a chlorine content which is less than X, wherein X is 10 ppm, a power cable, for example, a high voltage direct current (HV DC), a power cable polymer insulation, use of a polymer composition for producing a layer of a power cable, and a process for producing a power cable.

Linear shape member and producing method therefor

A linear shape member is composed of a linear shape electrical insulating body made of a fluoropolymer resin and including a plurality of crack shape grooves on a surface thereof, and a plating layer coating the surface of the electrical insulating body. The surface of the electrical insulating body meets at least either one of two conditions: that the surface of the electrical insulating body is not lower than 40 nm in arithmetic mean roughness Ra; and that the surface of the electrical insulating body is not lower than 80 nm in root mean square roughness Rms.