Biaxially oriented polypropylene film having increased dimensional stability

US6086982A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Herbert Peiffer · Mainz, DE
• Detlef Busch · Saarlouis, DE
• Gunter Schlogl · Kelkheim, DE
• Karl-Heinz Kochem · Neunkirchen, DE
• Thomas Dries · Bad Kreuznach, DE
• Andreas Winter · Königstein, DE

Key dates

• Filing date: Nov 10, 1997
• Grant date: Jul 11, 2000
• Expiry date: Nov 10, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31913
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A biaxially oriented polypropylene film is described. The n-heptane-insoluble content of the film has a chain isotactic index, measured by .sup.13 C-NMR spectroscopy, of at least 97%. In addition, a process for the production of the polypropylene film and the use of the film are described.