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

US9580611B2 · kind B2 · utility

Assignee

• LEIBNIZ-INSTITUT FUER NEUE MATERIALIEN GEMEINNUETZIGE GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG · DE

Inventors

• Sener Albayrak · Riegelsberg, DE
• Carsten Becker-Willinger · Riegelsberg, DE
• Michael Veith · Sankt Ingbert, DE
• Oral Cenk Aktas · Riegelsberg, DE

Key dates

• Filing date: Sep 4, 2007
• Grant date: Feb 28, 2017
• Expiry date: Sep 4, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K9/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The aim of the invention is to create a composition for coating electric conductors which is significantly more resistant to partial discharges than prior art compositions while the produced insulating layer is highly extensible. Said aim is achieved by a composition comprising 1 to 50 percent by weight of microparticles that have a specifically adjusted electronic defect structure in the crystal lattice, resulting in greater polarizability of the valence electrons, and an organic and/or organic-inorganic matrix. The microparticles that have a specifically adjusted electronic defect structure are composed of oxides, sulfides, selenides, tellurides of the elements which are part of the series encompassing silicon, zinc, aluminum, tin, boron, germanium, gallium, lead, the transition metals, lanthanides, and actinides, particularly from the series encompassing silicon, titanium, zinc, yttrium, cerium, vanadium, hafnium, zirconium, nickel, and/or tantalum, in such a way that the basic lattice is provided with vacant lattice positions by doping 4 the basic lattice with adequate low-valent or higher-valent elements, said vacant lattice positions increasing the electronic polarizability o…