Heat-sealable or non-heat-sealable, oriented, layered olefin polymer film comprising amorphous polymer particles

US5693414A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Herbert Peiffer · Mainz, DE
• Thomas Dries · Bad Kreuznach, DE
• Ursula Murschall · Nierstein, DE
• Michael Schreck · Frankfurt, DE

Key dates

• Filing date: Jul 20, 1995
• Grant date: Dec 2, 1997
• Expiry date: Jul 20, 2015

Classification

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

Abstract

The disclosed oriented, multilayer olefin polymer film comprises a polyolefinic base layer and at least one heat-sealable or non-heat-sealable top layer. The top layer contains at least one olefin polymer and at least one amorphous polymer which is in the olefin polymer in the form of separated or discrete, substantially non-agglomerated particles. The discrete, substantially non-agglomerated particles form during the coextrusion process for the production of the multilayer film. The film is useful for printing, lamination, and packaging.