Patent · US Expired

Matt, thermoformable, IR-reflective polyester film

US7189452B2 · kind B2 · utility

1Cited by

11References

16Claims

0Family size

Assignee

Mitsubishi Polyester Film GmbH · US

Inventors

Thorsten Kiehne · Wiesbaden, DE
Ursula Murschall · Nierstein, DE
Holger Kliesch · Ginsheim-Gustavsburg, DE

Key dates

Filing date	Jul 1, 2005
Grant date	Mar 13, 2007
Priority date	—
Expiry date	Jul 1, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31786
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Biaxially oriented polyester films formed from a crystallizable polyester having increased diethylene glycol content and/or increased polyethylene glycol content, and/or increased isophthalic acid content, preferably polyethylene terephthalate. The films of the invention further include at least one IR-reflective pigment and one UV stabilizer. The inventive films feature adjustable mattness, diffuse scattering power for visible light, high light transmittance and IR reflectance and good thermoformability, and are suitable for thermally protective coatings or thermally protective packaging.

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