Patent · US Active

Hydrolysis-resistant, multilayer polyester film with hydrolysis stabilizer

US7794822B2 · kind B2 · utility

3Cited by

17References

24Claims

0Family size

Assignee

Mitsubishi Polyester Film GmbH · US

Inventors

Holger Kliesch · Ginsheim-Gustavsburg, DE
Martin Jesberger · Mainz, DE
Bodo Kuhmann · Runkel, DE
Ingo Fischer · Marl, DE
Dagmar Klein · Ockenheim, DE

Key dates

Filing date	Mar 30, 2007
Grant date	Sep 14, 2010
Priority date	—
Expiry date	Mar 30, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31786
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a multilayer polyester film comprising a hydrolysis stabilizer, wherein the hydrolysis stabilizer is an epoxidized alkyl ester of fatty acid or is a mixture of epoxidized alkyl esters of fatty acid or is an epoxidized fatty acid glyceride or is a mixture of epoxidized fatty acid glycerides, and at least one external layer of the film does not comprise the hydrolysis stabilizer. The form in which the hydrolysis stabilizer is added to the polyester can be that of dry liquid, absorbed by a carrier material.

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