A coated wire suitable for aerospace applications includes a metallic conductor elongated along an axis and having an outer surface extending along the axis, and three coating layers surrounding the conductor. A first coating layer is connected to the outer surface of the conductor and extends along the axis to surround the conductor, and the first coating layer is formed of ethene-tetrafluoroethene. A second coating layer is connected to the first coating layer and extends along the axis to surround the first coating layer, and the second coating layer is formed of polyaryletherketone. A third coating layer is connected to the second coating layer and extends along the axis to surround the third coating layer, wherein the third coating layer is formed of ethene-tetrafluoroethene. The three coating layers may each be continuous and seamless extruded layers in one configuration.

A self-fusing insulated wire, containing: a conductor having a rectangular cross-section; a thermoplastic resin layer provided on the outer periphery of the conductor; and a thermosetting fusing layer provided on the outer periphery of the thermoplastic resin layer;
wherein the fusing layer is composed of a hardening resin composition having an epoxy-group-containing phenoxy resin (a1), an epoxy resin (a2) having a softening point of 50 C. or more and 250 C. or less, and an imidazole-series hardening agent,
wherein, in the hardening resin composition, a content ratio of the resin (a1) and the resin (a2) satisfies the relationship of (a1):(a2)=71:29 to 95:5 (mass ratio), and a content of the imidazole-series hardening agent with respect to 100 parts by mass of a total content of the resin (a1) and the resin (a2) is less than 2 parts by mass, and
wherein a storage elastic modulus at 85 C. of the hardening resin composition after hardening thereof is from 100 to 2,500 MPa.

A self-fusing insulated wire, containing: a conductor having a rectangular cross-section; a thermoplastic resin layer provided on the outer periphery of the conductor; and a thermosetting fusing layer provided on the outer periphery of the thermoplastic resin layer;
wherein the fusing layer is composed of a hardening resin composition having an epoxy-group-containing phenoxy resin (a1), an epoxy resin (a2) having a softening point of 50 C. or more and 250 C. or less, and an imidazole-series hardening agent,
wherein, in the hardening resin composition, a content ratio of the resin (a1) and the resin (a2) satisfies the relationship of (a1):(a2)=71:29 to 95:5 (mass ratio), and a content of the imidazole-series hardening agent with respect to 100 parts by mass of a total content of the resin (a1) and the resin (a2) is less than 2 parts by mass, and
wherein a storage elastic modulus at 85 C. of the hardening resin composition after hardening thereof is from 100 to 2,500 MPa.

A thermally conductive, electrical insulating paper having a thermal conductivity greater than 0.4 W/m-K is described. The thermally conductive, electrical insulating paper is a nonwoven paper that comprises aramid fibers, an aramid pulp, a binder material; and a synergistic blend of thermally conductive fillers, wherein the synergistic blend comprises a primary thermally conductive filler; and a secondary thermally conductive filler.

A rectangular insulated wire includes a rectangular conductor having a generally rectangular cross section, a thermosetting resin layer provided to cover the rectangular conductor, and a plurality of thermoplastic resin layers provided on the thermosetting resin layer. An adhesion strength between the thermosetting resin layer and the thermoplastic resin layer is 50 gf/mm to 100 gf/mm.

A rectangular insulated wire includes a rectangular conductor having a generally rectangular cross section, a thermosetting resin layer provided to cover the rectangular conductor, and a plurality of thermoplastic resin layers provided on the thermosetting resin layer. An adhesion strength between the thermosetting resin layer and the thermoplastic resin layer is 50 gf/mm to 100 gf/mm.

Magnet wire with thermoplastic insulation that reduces copper poisoning may include a conductor, and at least one layer of thermoplastic insulation formed around the conductor. Additionally, the thermoplastic insulation may include a matrix polymeric material and one or more additives incorporated into the matrix polymeric material, wherein the one or more additives mitigate copper poisoning, such as migration of copper ions from the conductor into the insulation layer, decomposition of the insulation layer as a result of copper ions, and/or oxidation on the surface of the conductor.

Magnet wire with thermoplastic insulation that reduces copper poisoning may include a conductor, and at least one layer of thermoplastic insulation formed around the conductor. Additionally, the thermoplastic insulation may include a matrix polymeric material and one or more additives incorporated into the matrix polymeric material, wherein the one or more additives mitigate copper poisoning, such as migration of copper ions from the conductor into the insulation layer, decomposition of the insulation layer as a result of copper ions, and/or oxidation on the surface of the conductor.

An insulated wire including a conductor and a resin coating layer covering a periphery of the conductor, wherein the conductor is an aluminum conductor surface-treated with CO.sub.2 plasma, and at least a portion of the resin coating layer in contact with the conductor includes at least one kind of a polyaryletherketone resin and a polyphenylene sulfide resin.

An insulated wire including a conductor and a resin coating layer covering a periphery of the conductor, wherein the conductor is an aluminum conductor surface-treated with CO.sub.2 plasma, and at least a portion of the resin coating layer in contact with the conductor includes at least one kind of a polyaryletherketone resin and a polyphenylene sulfide resin.