Biaxially stretched polymer film comprising a decarboxylation catalyst, its use in electrical insulation applications, and process for its production

US9373737B2 · kind B2 · utility

Assignees

• Mitsubishi Polyester Film GmbH · US
• Advansa SaSa Polyester Sanayi A.S. · TR

Inventors

• Holger Kliesch · Ginsheim-Gustavsburg, DE
• Bodo Kuhmann · Runkel, DE
• Dagmar Klein · Ockenheim, DE
• Annegrete Bursch · Düsseldorf, DE
• Rainer Kurz · Taunusstein, DE
• Dirk Broeder · Schweppenhausen, DE
• Ahmet Turan · Adana, TR
• Engin Kuçukaltun · Adana, TR
• Murat Kolbasi · Adana, TR

Key dates

• Filing date: May 11, 2010
• Grant date: Jun 21, 2016
• Expiry date: Feb 28, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/50
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Biaxially stretched film with polymeric constituents formed mainly of polyester in which the film includes at least one copper salt and one halide, with the resulting film having an AC (alternating current) dielectric strength of at least 100 kV/mm at 23° C. and 50 Hz. The invention further relates to the use of the film of the invention, in particular in solar modules, and also to a process for its production.