Wärmebeständiger, leitfähiger Draht mit einer Benzimidazolpolymer enthaltenden Beschichtung

摘要

An insulating material comprising a layer containing a reaction product of benzimidazole-based polymers and a layer containing a ceramic material is prepared. This material provides a heat-resistant product and is used in particular to form a heat-resistant electrical wire. To manufacture such a heat-resistant wire (10), a varnish solution containing benzimidazole-based polymers is prepared. The varnish solution is applied to an electrical wire (11) and baked, so that the applied benzimidazole-based polymers are reacted and form a first coating (12). This first coating is further coated with a ceramic material (13) to obtain a heat-resistant electrical wire that is also resistant to dielectric breakdown.