An insulated electric conductor includes a flat or round wire made of one or more electrically conductive materials, the flat or round wire having an exterior surface that is free of an oxide layer; and an insulating layer adhering directly to the oxide-layer-free exterior surface to form a coating around the oxide-layer-free exterior surface, the insulating layer being made of at least one thermoplastic material which provides electrical insulation. The flat or round wire is designed to conduct an electrical current.

The invention provides a polymer composition comprising a) a low density polyethylene (LDPE); and b) a conjugated aromatic polymer. The invention also relates to cables comprising said polymer composition and the use of the polymer composition in the manufacture of an insulation layer of cable.

Magnet wire included extruded insulation formed from a blend of two or more different polymeric materials is described. A magnet wire may include a conductor and insulation formed around the conductor. The insulation may include at least one layer of extruded insulation formed from a blend of a first polymeric material and a second polymeric material different than the first polymeric material. The first polymeric material may include one of polyetheretherketone, polyaryletherketone, polyetherketoneketone, polyphenylsulfone, polyphenylene sulfide, or polybenzimidazole. The second polymeric material may include one of polyphenylsulfone, polyetherimide, polyethersulfone, polyphenylene sulfide, polycarbonate, or polyester.

The present invention relates to a process for the preparation of a polyarylene ether sulfone polymer (P) by converting a reaction mixture (R.sub.G) which comprises, among others, at least one aromatic dihalogen sulfone and at least one dihydroxy component comprising at least 20 mol-% of trimethylhydroquinone based on the total amount of the at least one dihydroxy component. The present invention furthermore relates to the Ouse of a polyarylene ether sulfone polymer (P) obtainable by the inventive process in a membrane (M) and to a membrane (M) comprising the polyarylene ether sulfone polymer (P) obtainable by the inventive process, as well as to a method for the preparation of a membrane (M).

Magnet wire including extruded insulation formed from a blend of different polymeric materials is described. A magnet wire may include a conductor and insulation formed around the conductor. The insulation may include at least one layer of extruded insulation formed from a blend of at least three different polymeric materials. A first polymeric material, such as polyetheretherketone, may have a thermal index above 250° C. Second and third polymeric materials, such as polyphenylsulfone and polyethersulfone, may have lower thermal indexes.

Adhesive compositions are described that significantly improve the adhesion of polymer overmold compositions to metal substrates in polymer-metal junctions. The adhesive compositions include one or more poly(aryl ether) polymers, where each of the poly(aryl ether) polymers is, independently, a poly(aryl ether sulfone) polymer or a poly(aryl ether ketone) polymer. The overmold composition includes at least one poly(aryl ether ketone) polymer. Polymer-Metal junctions can be formed by, for example, dip-coating, spin-coating, extruding, or injection molding the adhesive composition and/or the overmold composition onto the metal substrate. Desirable applications settings for the polymer-metal junctions described include, but are not limited to electrical wiring.

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.

A cable separator comprising a preshaped article having a longitudinal length, wherein said preshaped article is substantially entirely formed of a foamed polymer material having a glass transition temperature greater than 160° C. and being halogen-free is provided. A data communications cable comprising a plurality of conductors and the cable separator of the present invention, wherein said cable separator separates the plurality of conductors is provided. A method of manufacturing a cable comprising the separator of the invention is also provided.

An insulation wire includes a conductor, a first insulating layer formed in an outer surface of the conductor, and a second insulating layer formed in an outer surface of the first insulating layer. In the insulation wire, the first insulating layer is a thermoplastic resin layer that is made of polyphenylene sulfide or polyether ether ketone, and the second insulating layer is a thermosetting resin layer.

An insulating thermally conductive resin composition (1) includes a phase-separated structure including: a first resin phase (2) in which a first resin continues three-dimensionally; and a second resin phase (3) different from the first resin phase and formed of a second resin. Moreover, the insulating thermally conductive resin composition includes: small-diameter inorganic filler (4) unevenly distributed in the first resin phase; and large-diameter inorganic filler (5) that spans the first resin phase and the second resin phase and thermally connects pieces of the small-diameter inorganic filler, which is unevenly distributed in the first resin phase, to one another. Then, an average particle diameter of the small-diameter inorganic filler is 0.1 to 15 μm. Moreover, an average particle diameter of the large-diameter inorganic filler is larger than the average particle diameter of the small-diameter inorganic filler, and is 1 to 100 μm.