Biaxially oriented multilayer polyolefin film which can be heat-sealed at low temperatures, process for the production thereof, and the uses thereof

US5900294A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

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

Key dates

• Filing date: Jan 24, 1996
• Grant date: May 4, 1999
• Expiry date: Jan 24, 2016

Classification

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

Abstract

A polyolefinic multilayer film comprises a base layer containing polypropylene and at least one outer layer. The outer layer comprises a C.sub.3 /C.sub.4 -olefin resin composition with a low degree of crystallinity and has a minimum heat-sealing temperature of below 84.degree. C. A process for the production of the multilayer film and the use thereof are also described.