A method for forming magnet wire includes co-extruding multiple layers of different insulating materials. A conductor may be provided, and extruded insulation may be formed around the conductor by co-extruding both a first layer of thermoplastic insulation and a second layer of thermoplastic insulation with the second layer formed around the first layer. The first layer may include a first polymeric material having a first thermal index, and the second layer may include a second polymeric material having a second thermal index higher than the first thermal index.

An RF cable includes: an inner conductor; an insulating layer extrusion molded over the inner conductor; a shielding layer covering the insulating layer; and an outer coating layer covering the shielding layer, wherein plural air holes arranged at intervals on the insulating layer and the insulating layer is coated on the outer side of the inner conductor through one-time extrusion molding.

A power cord assembly is disclosed. The assembly can include 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 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 part and surrounding the one or more insulators. At least one of the plug, the connector part, the one or more insulators, or the outer jacket can include a polybutylene terephthalate (PBT)-polytetramethyleneoxide (PTMO) block copolymer having hard block and soft block segments, wherein the hard block segments comprise PBT and the soft block segments comprise PTMO. The hard block segments can include a first renewably sourced polymer obtained, at least in part, from a first bio-renewable source or a first polymer comprising a chemically recycled monomeric unit obtained, at least in part, from the first bio-renewable source. The soft block segments can include a second, different renewably sourced polymer obtained, at least in part, from a second, different bio-renewable source or a second polymer comprising a chemically recycled monomeric unit obtained, at least in part, from the second, different bio-renewable source.

Systems and methods for forming insulation on magnet wire are provided. An extruder that includes one or more rotating screws may receive a plurality of ingredients for a polymeric insulation material and process the plurality of ingredients to facilitate polymerization of the polymeric insulation material within the extruder. An application assembly in fluid communication with the extruder may apply the polymeric insulation material onto a wire. A curing device may then cure the polymeric insulation material.

The present invention relates to a wire or cable comprising a conductor coated with an insulation composition, wherein said insulation composition comprises: i) a polyethylene copolymer having a melting point of 105° C. or less; and ii) a hindered amine light stabiliser (HALS) comprising at least one 2,2,6,6-tetramethyl-piperidinyl group present in an amount of 0.5 to 1.5 wt %.

A foamable composition includes a base polymer, talc blended with the base polymer, and a citrate compound blended with the base polymer. The foamable composition is usable as an insulator, a separator and a jacket for cables, such as communications cable. The foamable composition can include conductive inclusions in the foamable composition.

Provided is an insulated wire with bonding layer having excellent adhesive strength between an insulating coating layer and a bonding layer that is provided on the outside of the insulating coating layer. An insulated wire 1 with bonding layer includes: a conductor 2; an insulating coating layer 3 that covers an outer circumference of the conductor 2; and a bonding layer 4 that is provided on an outer side of the insulating coating layer 3 and is bonded by heat, wherein the insulating coating layer 3 contains polyvinyl chloride, and the bonding layer 4 contains a modified polyolefin resin and a polyamide resin.

A cable includes cable one or more conductors and a covering surrounding the one or more conductors. The covering is formed from a composition including polyethylene and a polyolefin elastomer, where the composition is crosslinked. A method of forming the cable is also provided.

A method of manufacturing a cable includes at least one elongated electrically conducting element and at least one composite layer surrounding the elongated electrically conducting element. The composite layer is obtained from at least one step of impregnation of a non-woven fibrous material with a geopolymer composition.

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.