Patent · US Expired

Coextruded, hot-sealable and peelable polyester film having high peeling resistance, process for its production and its use

US7186452B2 · kind B2 · utility

17Cited by

12References

24Claims

0Family size

Assignee

Mitsubishi Polyester Film GmbH · US

Inventors

Herbert Peiffer · Mainz, DE
Bart Janssens · Wiesbaden, DE
Bodo Kuhmann · Runkel, DE
Harald Mueller · Taunusstein, DE

Key dates

Filing date	Sep 29, 2004
Grant date	Mar 6, 2007
Priority date	—
Expiry date	Sep 29, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31786
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

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 from at least the APET side of an APET/CPET tray, the heatsealable and peelable top layer (A) consisting of The invention further relates to a process for producing the film and to its use.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.