Patent classifications
H01B13/148
SEMICONDUCTIVE POLYMER COMPOSITION
A semiconductive polymer composition comprising: (a) an ethylene C1-2-alkyl (meth)acrylate copolymer having an MFR2 of 4.5 g/10 min or more and a C1-2-alkyl (meth)acrylate content of at least 9.0 wt % based on the total weight of the ethylene C1-2-alkyl alkyl (meth)acrylate copolymer; (b) 35.0 to 48 wt % carbon black having an iodine adsorption number of 85 to 140 mg/g (ASTM D 1510-19a), an oil absorption number of 90 to 110 ml/100 g (ASTM D 2414-19) and an average primary particle size of 29 nm or less (ASTM D 3849-14a); and (c) 0.05 to 2.0 wt % of at least one antioxidant; all weight percentages being based on the total weight of the semiconductive polymer composition, unless mentioned otherwise.
Insulated wire, coil, and electric or electronic equipment
An insulated wire having a thermosetting resin layer on the outer periphery of a conductor and a thermoplastic resin layer on the outer periphery of the thermosetting resin layer, wherein a total thickness of the thermosetting resin layer and the thermoplastic resin layer is 100 m or more and 250 m or less, and a degree of orientation of a thermoplastic resin in said thermoplastic resin layer, that is calculated by the following Formula 1, is 20% or more and 90% or less; a coil and an electric and electronic equipment each having the insulated wire. Formula 1 Degree of orientation H (%)=[(360W.sub.n)/360]100 W.sub.n: A half width of orientation peak in the azimuth angle intensity distribution curve by X-ray diffraction n: the number of orientation peak at a angle of 0 or more and 360 or less.
Flexible cable with structurally enhanced conductors
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 mixed within the conductor insulation such that the binder can be removed without decreasing a crush resistance of the electrical cable.
FOAMABLE COMPOSITIONS AND METHODS FOR FABRICATING FOAMED ARTICLES
In one aspect, a foamable composition is disclosed, which comprises a base polymer, talc and a citrate compound blended with the base polymer. In some embodiments, the concentration of the talc in the composition is in a range of about 0.05% to about 25% by weight, e.g., in a range of about 2% to about 20%, or in a range of about 3% to about 15%, or in a range of about 5% to about 10%. Further, the concentration of the citrate compound in the composition can be, for example, in a range of about 0.05% to about 3% by weight, or in a range of about 0.02% to about 0.9% by weight, or in a range of about 0.03% to about 0.8% by weight, or in a range of about 0.04% to about 0.7% by weight, or in a range of about 0.05% to about 0.6% by weight
ELECTRICAL CABLE WITH IMPROVED RESISTANCE TO GALVANIC CORROSION
The invention relates to an elongated electrically conductive copper-aluminum bimetal element, a cable comprising at least one such elongated electrically conductive element, a process for preparing said elongated electrically conductive element and said cable, and a device comprising such an electric cable and at least one metal connector.
Insulated wire with bonding layer of polyolefin and polyamide
An insulated wire with bonding layer includes: a conductor; an insulating coating layer that covers an outer circumference of the conductor; and a bonding layer that is provided on an outer side of the insulating coating layer and is bonded by heat, wherein the insulating coating layer contains polyvinyl chloride, and the bonding layer contains a modified polyolefin resin and a polyamide resin.
INSULATED WIRE, COIL, AND ELECTRIC OR ELECTRONIC EQUIPMENT
An insulated wire having a thermosetting resin layer on the outer periphery of a conductor, and a thermoplastic resin layer on the outer periphery of the thermosetting resin layer, wherein a total thickness of the thermosetting resin layer and the thermoplastic resin layer is 100 m or more and 250 m or less, and a degree of orientation of a thermoplastic resin in said thermoplastic resin layer, that is calculated by the following Formula 1, is 20% or more and 90% or less; a coil and an electric and electronic equipment each having the insulated wire.
Degree of orientation H (%)=[(360-W.sub.n)/360]100 Formula 1 W.sub.n: A half width of orientation peak in the azimuth angle intensity distribution curve by X-ray diffraction n; the number of orientation peak at a angle of 0 or more and 360 or less.
Process for producing an energy cable having a thermoplastic electrically insulating layer
A process for producing an energy cable including at least one electrically conductive core and at least one thermoplastic electrically insulating layer, includes the steps of: impregnating a thermoplastic material in subdivided solid form, having a melting enthalpy equal to or lower than 70 J/g, with a dielectric fluid to obtain an impregnated thermoplastic material; feeding the impregnated thermoplastic material in subdivided solid form to a single-screw extruder; and extruding the impregnated thermoplastic material onto the at least one electrically conductive core, so as to form the at least one thermoplastic electrically insulating layer, whereby the impregnated thermoplastic material is not subjected to any mechanical homogenization step in a molten state. Energy cables having a large amount of the dielectric fluid in the electrically insulting layer, e.g. higher than 10 wt %, are obtained without showing any morphological defects in the layer itself and any drawbacks in the extrusion process, even when the rotation speed of the extruder screw, and therefore, the cable production speed, are high (e.g. higher than 20 m/min for medium voltage cable).
FLUOROPOLYMER COMPOSITION
The invention pertains to a fluoropolymer composition [composition (C)] comprising: at least one semi-crystalline polymer comprising recurring units derived from ethylene and at least one of chlorotrifluoroethylene (CTFE) and tetrafluoroethylene (TFE), said polymer having a heat of fusion of at most 35 J/g [polymer (A)]; and from 0.05 to 15% by weight, based on weight of polymer (A), of at least one ethylene copolymer with at least one long chain a-olefin having a number of carbon atoms of 6 or more, and possessing a density of less than 0.900 g/cm3, as determined according to ASTM D792; to a method for its manufacture and to its use for manufacturing cables.
Flexible cable with structurally enhanced conductors
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.