Patent · US Expired

Sealable biaxially orientated polypropylene film with a protective coating sealing against PVDC and acrylate lacquer

US7011882B2 · kind B2 · utility

0Cited by

2References

39Claims

0Family size

Assignee

Trespaphan GmbH · DE

Inventors

Susanne Holzer · Ottweiler, DE
Gerhard Wieners · Frankfurt am Main, DE
Wilfried Tews · Bechhofen, DE

Key dates

Filing date	Sep 11, 2001
Grant date	Mar 14, 2006
Priority date	—
Expiry date	Jul 29, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31928
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a multi-layered biaxially orientated polyolefin film comprising a base layer and at least one protective coating. Said protective coating contains, as the main component, one copolymer or terpolymer I, which seals against PVDC and acrylate lacquers and coatings and consists of an olefin and unsaturated carboxylate acids or the esters thereof, and small quantities of wax. The film is provided on one side with a PVDC or acrylate coating so that it can be used as roll-wrap packaging.

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