Patent · US Expired

Label film with improved adhesion

US7144542B2 · kind B2 · utility

42Cited by

14References

53Claims

0Family size

Assignee

Trespaphan GmbH · DE

Inventors

Susanne Holzer · Ottweiler, DE
Gerhard Wieners · Frankfurt am Main, DE
Albert Lauer · Fredericksburg, US

Key dates

Filing date	Dec 5, 2001
Grant date	Dec 5, 2006
Priority date	—
Expiry date	Jan 1, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31935
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to the use of a biaxially oriented polyolefin film as a label film. The inventive film consists of a base layer and at least one cover layer. Said cover layer contains as the main component a copolymer or terpolymer consisting of one alkene and unsaturated carboxylic acids or the esters thereof and low amounts of an additive. The cover layer is characterized by excellent and divers adhesion to various polymer materials from which containers are formed. It is no longer necessary to apply adhesives, primers, coatings etc. in a separate step after production of the film.

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