Patent · US Expired

White, biaxially oriented and UV-resistant polyester film with cycloolefin copolymer (COC), its use and process for its production

US6627695B2 · kind B2 · utility

19Cited by

4References

13Claims

0Family size

Assignee

Mitsubishi Polyester Film GmbH · US

Inventors

Ursula Murschall · Nierstein, DE
Herbert Peiffer · Mainz, DE
Gottfried Hilkert · Saulheim, DE
Richard L. Davis · Wiesbaden, DE

Key dates

Filing date	Feb 12, 2001
Grant date	Sep 30, 2003
Priority date	—
Expiry date	Feb 21, 2021

Classification

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

Abstract

The present application relates to a white, biaxially oriented, UV-resistant polyester film with at least one base layer which comprises, based on the weight of the base layer, from 2 to 60% by weight of a cycloolefin copolymer (COC), where the glass transition temperature of the COC is within the range from 70 to 270° C. The film also comprises from 0.01 to 5.0% by weight of a UV stabilizer as light stabilizer, based on the weight of the base layer. The film of the invention is suitable for packing foods or other consumable items which are sensitive to light and/or to air, or for use in industry, e.g. in the production of hot-stamping foils or as a label film, or for image-recording papers, printed sheets or magnetic recording cards.

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