Peelable polyester film having improved oxygen barrier, process for its production and its use

US7205040B2 · kind B2 · utility

Assignee

• Mitsubishi Polyester Film GmbH · US

Inventors

• Herbert Peiffer · Mainz, DE
• Bart Janssens · Wiesbaden, DE
• Gottfried Hilkert · Saulheim, DE
• Matthias Konrad · Kriftel, DE

Key dates

• Filing date: Nov 9, 2004
• Grant date: Apr 17, 2007
• Expiry date: Nov 9, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31786
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Coextruded, biaxially oriented polyester films which have a base layer (B) and have a heatsealable outer layer (A) that can be peeled from APET/CPET and from CPET, where the outer layer (A) comprises