Patent ID: 7056573
Filing Date: 2006-06-06
Classification: B32B,C08L,Y10S,Y10T

Abstract:
1. A coextruded, biaxially oriented polyester film composed of a polyester base layer and of at least one outer layer, wherein the film has at least one matt outer layer which comprises a UV stabilizer and a mixture or a blend or a mixture and a blend made from two components I and II, wherein component I is essentially a polyethylene terephthalate homopolymer or polyethylene terephthalate copolymer or a mixture made from polyethylene terephthalate homopolymer or from polyethylene terephthalate copolymers, and component II is a polymer which contains at least one sulfonate group, said UV stabilizer present in said outer layer(s) alone, wherein said film does not transmit UV radiation of less than or equal to 360 nm.