The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2005
Filed:
May. 05, 2003
Herbert Peiffer, Ingelheim, DE;
Guenther Crass, Taunusstein, DE;
Ulrich Kern, Ingelheim, DE;
Ursula Murschall, Nierstein, DE;
Andreas Stopp, Ingelheim, DE;
Herbert Peiffer, Ingelheim, DE;
Guenther Crass, Taunusstein, DE;
Ulrich Kern, Ingelheim, DE;
Ursula Murschall, Nierstein, DE;
Andreas Stopp, Ingelheim, DE;
Mitsubishi Polyester Film GmbH, Wiesbaden, DE;
Abstract
Biaxially oriented, coextruded polyester films with a base layer at least 90% by weight of which is composed of a thermoplastic polyester, preferably polyethylene terephthalate (PET), and with at least one sealable outer layer and a second nonsealable outer layer and, if desired, with other intermediate layers, and comprising at least one UV absorber, preferably hydroxybenzotriazoles and triazines, have high UV resistance, do not embrittle when exposed to high temperatures, have a surface without undesirable haze and are suitable for numerous indoor and outdoor applications. The outer layers comprise antiblocking agents, such as silica with an average particle diameter preferably below 50 nm and/or above 2 μm, and the sealable outer layer is preferably composed of a copolyester which has been built up from ethylene terephthalate units and ethylene isophthalate units.