Elektroisolierstoffe mit hoher Wärmebeständigkeit

Electrical Insulating Materials with High Thermal Stability Polymers to be classified into the group of highly thermostable materials must possess certain properties even at elevated temperatures. Thermostable substances suitable for electrical insulation possess good insulating properties at high temperatures. Materials with high thermal stability have found their way in the field of electrical insulation, especially in wire coatings. Such materials are polyesters of terephthalic acid, polyimides, polyamidimides and esterimides. The processes for the preparation and properties of these polymers are described. Furthermore a few polymers are mentioned, whose chemical structure deserve special attention.