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.

Date of Patent:
Jan. 02, 2007

Filed:

Jan. 10, 2001
Applicants:

Ursula Murschall, Nierstein, DE;

Ulrich Kern, Ingelheim, DE;

Andreas Stopp, Ingelheim, DE;

Guenther Crass, Taunusstein, DE;

Herbert Peiffer, Mainz, DE;

Inventors:

Ursula Murschall, Nierstein, DE;

Ulrich Kern, Ingelheim, DE;

Andreas Stopp, Ingelheim, DE;

Guenther Crass, Taunusstein, DE;

Herbert Peiffer, Mainz, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/20 (2006.01); B32B 27/36 (2006.01); B32B 37/15 (2006.01);
U.S. Cl.
CPC ...
Abstract

Biaxially oriented, co-extruded polyester films comprising a base layer consisting of at least 90 wt. % thermoplastic polyester, preferably polyethylene terephthalate (PET), at least one sealable outer layer and a second non-sealable outer layer and, optionally, other intermediate layers, in addition to at least one flame-retardant agent, preferably organic phosphorous compounds. The inventive films are characterized by low inflammability, high UV stability, no embrittlement when subjected to thermal stress and a surface which is devoid of troublesome opacity. They are suitable for a multiplicity of uses both indoors and outside. The outer layers contain anti-blocking agents such as silicic acid having an average particle diameter of preferably less than 50 nm and/or 2 μm. Preferably, the sealable outer layer consists of a copolyester which is made of ethylene terephthalate and ethylene isophthalate units.


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