Patent · US Expired

Biaxially oriented film with better surface quality based on crystallizable polyesters and process for producing the film

US6852388B2 · kind B2 · utility

19Cited by

5References

23Claims

0Family size

Assignee

Mitsubishi Polyester Film GmbH · US

Inventors

Ursula Murschall · Nierstein, DE
Ulrich Kern · Ingelheim am Rhein, DE
Rainer Kurz · Taunusstein, DE
Holger Kliesch · Ginsheim-Gustavsburg, DE
Bodo Kuhmann · Runkel, DE

Key dates

Filing date	Sep 12, 2002
Grant date	Feb 8, 2005
Priority date	—
Expiry date	Sep 12, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31786
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a single- or multilayer, biaxially oriented film based on a crystallizable polyester and comprising at least one primary stabilizer for inhibiting oxidative degradation. The crystallizable polyester comprises from 100 to 10 000 ppm of primary stabilizer in covalently bonded form. The invention further relates to a process for producing the film.

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