| abstract |
Polyester films, which in addition to thermoplastic polyester such. As polyethylene terephthalate 5-45 wt .-% poly (m-xylen adipamide) and 0.02 to 1 wt .-% of fillers, at least one adhesion-promoting surface or coating and have been prepared by the sequential stretching process are characterized by improved mechanical properties such as a modulus of elasticity of greater than 3500 N / mm 2 in both orientation directions, a high gloss, low haze and by very good barrier properties against oxygen transmission and are therefore suitable as packaging material for food and beverage. |