Patent ID: 8188370

Claim:
A multilayer insulated electric wire, comprising: a conductor; and three or more extruded insulation layers covering the conductor, wherein an outermost layer (A) of the extruded layers is composed of an extruded layer containing a polyester elastomer, in which polybutylene terephthalate resin is used as a hard segment, wherein an innermost layer (B) of the extruded layers is composed of an extruded layer containing a thermoplastic polyester resin, in which an entirety or a part of the thermoplastic polyester resin is formed by allowing an aliphatic alcohol component and, an acid component to cause polycondensation, and in which the number of carbon atoms of the aliphatic alcohol component is 2 to 5, and wherein at least one insulating layer (C) between the outermost layer and the innermost layer is composed of an extruded layer containing a thermoplastic polyester resin, in which an entirety or a part of the thermoplastic polyester resin is formed by allowing an aliphatic alcohol component and an acid component to cause polycondensation, and in which the number of carbon atoms of the aliphatic alcohol component is 2 to 5.