Abstract: 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.

Abstract: Magnet wire including extruded insulation formed from multiple layers of different materials is described. A magnet wire may include a conductor and insulation formed around the conductor. The insulation may include a first layer of extruded thermoplastic insulation formed around the conductor and a second layer of extruded thermoplastic insulation formed around the first layer of extruded thermoplastic insulation. The first layer may be formed from a first polymeric material having a first thermal index, and the second layer may be formed from a second polymeric material having a second thermal index higher than the first thermal index.

Abstract: Magnet wire including extruded insulation formed from multiple layers of different materials is described. A magnet wire may include a conductor and insulation formed around the conductor. The insulation may include a first layer of extruded thermoplastic insulation formed around the conductor and a second layer of extruded thermoplastic insulation formed around the first layer of extruded thermoplastic insulation. The first layer may be formed from a first polymeric material having a first thermal index, and the second layer may be formed from a second polymeric material having a second thermal index higher than the first thermal index.