Patent · US Expired

Sealable, biaxially oriented polyester film

US6423401B1 · kind B1 · utility

19Cited by

4References

11Claims

0Family size

Assignee

Mitsubishi Polyester Film GmbH · US

Inventors

Herbert Peiffer · Mainz, DE
Richard L. Davis · Wiesbaden, DE
Gottfried Hilkert · Saulheim, DE

Key dates

Filing date	Mar 27, 2001
Grant date	Jul 23, 2002
Priority date	—
Expiry date	Mar 27, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31786
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a biaxially oriented, sealable polyester film with at least a base layer (B), with a sealable outer layer (A) and with another, nonsealable outer layer (C), where the sealable outer layer (A) has a minimum sealing temperature of not more than 110° C. and a seal seam strength of at least 1.3 N/15 mm of film width, and the topographies of the two outer layers (A) and (C) have particular characterizing features. The film of the invention is particularly suitable for use in flexible packaging and specifically in particular for use on high-speed packaging machinery.

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