Patent ID: 8313829
Filing Date: 2012-11-20
Classification: B32B,Y10T

Abstract:
1. A multilayer biaxially oriented polyester film comprising a base layer B and at least one top layer A, wherein the top layer A a) has a thickness of 1 to 10 μm, b) comprises predominantly a copolyester containing 15 to 40 mol % of cyclohexane dimethylene terephthalate, c) contains more than 0.05% by weight of external particles, based on the total weight of the top layer A, the base layer B comprises polyester which includes from 0.1 to 5 mol % of 1,4-bismethylenecyclohexane, and the film i) has a seal seam strength to itself, PVC and metal after sealing at 180° C., 4 bar, 0.5 s of greater than 2 N/15 mm, and ii) a sliding friction of less than 0.5.