| 摘要 |
PURPOSE:To provide superior comparibility and heat resistance, by employing alkenylphenols or the like, maleimide compounds, epoxy compounds and carboxylic acid anhydrides as components for a heardening resin layer. CONSTITUTION:A heat-resistant insulating substrate layer such as aramid paper, polyimide film, glass lined film, film lined mica tape, aramid mica sheet, glass cloth or glass varnish cloth or the like is wound around the external circumference of a coil body. As a hardening resin layer impregnated and incorporated with this substrate layer, for example, phenol, cresol or the like selected from alkenylphenols and alkenyl phenyl ethers, a maleimide compound such as phenylmaleimide, and furthermore, an epoxy compound and a carboxylic acid anhydride are employed as components. In this way, superior compatibility and heat resistance can be provided. |
