Resin-containing, biaxially oriented, multilayer polypropylene film, process for the production thereof, and the use thereof

US6060139A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Herbert Peiffer · Mainz, DE
• Ursula Murschall · Nierstein, DE
• Thomas Dries · Bad Kreuznach, DE
• Gunter Schloegl · Kelkheim, DE

Key dates

• Filing date: Jul 22, 1996
• Grant date: May 9, 2000
• Expiry date: Jul 22, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31931
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A multilayer polypropylene film which includes at least one base layer containing propylene polymer or a propylene polymer mixture and resin, and at least one outer layer containing .alpha.-olefinic polymers having 2 to 10 carbon atoms is disclosed. The resin has a mean molecular weight of.gtoreq.1500. The invention also relates to a process for the production of the multilayer film, and to the use of the film in a twist wrapping process.