Coating composition for electrical conductors and method of producing such a composition

Abstract

The invention relates to a composition for coating electrical conductors and a method of producing such a composition. In order to provide a coating composition for electrical conductors, the partial-discharge resistance of which coating composition is increased significantly compared with prior-art solutions while the insulation layer produced remains highly extensible, a composition is suggested within the scope of the invention which consists of 1-50 wt. % of microparticles with a selectively adjusted electronic defect structure in the crystal lattice, the defect structure making the valence electrons more easily polarizable, and an organic and/or organic-inorganic matrix, the microparticles with the selectively adjusted electronic defect structure being made up of oxides, sulfides, selenides and/or tellurides of elements of the series comprising silicon, zinc, aluminum, tin, boron, germanium, gallium, lead, the transition metals and the lanthanides and actinides, particularly of the series comprising silicon, titanium, zinc, yttrium, cerium, vanadium, hafnium, zirconium, nickel and/or tantalum, in such manner that by means of doping with appropriate lower- or higher-valency elements, the basic crystal lattice is provided with vacancies which, by way of defect chemistry (defect structure), make it easier for the microparticles to be electronically polarized.

Dependencies are inferred from the claim text.