| abstract |
Biaxially oriented, coextruded polyester films with a base layer which consists of at least 90% by weight of a thermoplastic polyester, preferably polyethylene terephthalate (PET), and which have at least one sealable cover layer and a second non-sealable cover layer and optionally further intermediate layers, and the Contain at least one UV absorber, preferably hydroxybenzotriazoles and triazines, are characterized by high UV stability, no embrittlement after exposure to temperature, a surface without disturbing cloudiness and are suitable for numerous indoor and outdoor applications. The cover layers contain antiblocking agents such as silica with an average particle diameter of preferably less than 50 nm and / or greater than 2 μm, the sealable cover layer preferably consisting of a copolyester which is composed of ethylene terephthalate and ethylene isophthalate units. |