Patent · US Expired

Biaxially oriented polyolefins with a reduced blocking tendency with respect to cold sealing products

US7799436B2 · kind B2 · utility

2Cited by

10References

22Claims

0Family size

Assignee

Trespaphan GmbH · DE

Inventors

Gerhard Wieners · Frankfurt am Main, DE
Susanne Holzer · Ottweiler, DE
Jurgen Schischko · Neunkirchen (Saar), DE

Key dates

Filing date	Apr 5, 2001
Grant date	Sep 21, 2010
Priority date	—
Expiry date	May 1, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31909
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a multilayered biaxially oriented polyolefin film in the form of a release film in a laminate which is coated on an outer surface thereof with a cold seal adhesive. The release film comprises a base layer and at least one outer layer. At least one layer of the release film contains wax having an average molecular weight Mn of 200-3000. The invention also relates to a method for producing the film and the use thereof.

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