Packaging film comprising a sealing layer and a substrate layer

US5451468A · kind A · utility

Assignee

• BASF SE

Inventors

• Erhard Seiler · Ludwigshafen, DE
• Werner Schoene · Schriesheim, DE
• Uwe Ballerstedt · Ludwigshafen, DE

Key dates

• Filing date: Sep 14, 1993
• Grant date: Sep 19, 1995
• Expiry date: Sep 14, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31938
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A packaging film contains PA1 a) a sealing layer of a mixture of from 50 to 80% by weight of a random terpolymer (I) of from 90 to 97% by weight of propylene, from 2 to 6% by weight of ethylene and from 1 to 6% by weight of a C.sub.4 -C.sub.10 -alk-1-ene and from 20 to 50% by weight of at least one ethylene polymer (II) PA1 b) and a substrate layer of a thermoplastic polymer. The novel packaging film possesses in particular good sealability over a wide temperature range.