White, heatsealable, peelable polyester film, process for its production and its use

US7329453B2 · kind B2 · utility

Assignee

• Mitsubishi Polyester Film GmbH · US

Inventors

• Herbert Peiffer · Mainz, DE
• Bart Janssens · Wiesbaden, DE
• Gottfried Hilkert · Saulheim, DE
• Paul Broemmel · Mainz, DE

Key dates

• Filing date: Nov 9, 2004
• Grant date: Feb 12, 2008
• Expiry date: Mar 14, 2026

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31794
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

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