Use of films of polycondensates

US4786708A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Volker Serini · Krefeld, DE
• Bernhard Schulte · Krefeld, DE
• Claus Burkhardt · Lörrach, DE
• Dieter Freitag · Krefeld, DE
• Uwe Hucks · Alpen, DE
• Werner Waldenrath · Cologne, DE
• Hans-Leo Weber · Eschenried, DE

Key dates

• Filing date: Apr 29, 1987
• Grant date: Nov 22, 1988
• Expiry date: Apr 29, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24967
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Films from aromatic polyesters and from aromatic polyestercarbonates are excellently suitable as electrically insulating films, for example as dielectric for capacitors and as conductor track films.