Coextruded, hot-sealable and peelable polyester film, process for its production and its use

US7144615B2 · kind B2 · utility

Assignee

• Mitsubishi Polyester Film GmbH · US

Inventors

• Herbert Peiffer · Mainz, DE
• Gottfried Hilkert · Saulheim, DE
• Matthias Konrad · Kriftel, DE
• Cynthia Bennett · Wiesbaden, DE
• Paul Broemmel · Mainz, DE

Key dates

• Filing date: Sep 29, 2004
• Grant date: Dec 5, 2006
• Expiry date: Sep 29, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31797
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to a coextruded, transparent, biaxially oriented polyester film comprising a base layer (B) and a heatsealable top layer (A) which is peelable with respect to at least CPET. The heatsealable and peelable top layer (A) consists of The invention further relates to a process for producing the film and to its use.