Patent · US Expired

Biaxially oriented polypropylene film, the use of the film and process for its production

US6410132B1 · kind B1 · utility

3Cited by

17References

29Claims

0Family size

Assignee

Mitsubishi Polyester Film GmbH · US

Inventors

Herbert Peiffer · Mainz, DE
Richard L. Davis · Wiesbaden, DE
Joerg Hellmann · Mainz, DE

Key dates

Filing date	Sep 15, 1999
Grant date	Jun 25, 2002
Priority date	—
Expiry date	Sep 15, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31913
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a biaxially oriented polypropylene film which has good processing performance and, after it has been metallized or oxidically coated, is a very good barrier to oxygen, and which is composed of at least a base layer, wherein the planar orientation delta p of the film is greater than 0.0138.

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