Patent ID: 8021760

Claim:
A multilayer film comprising: a) a first and second outer layer each comprising a polymer; b) a core layer comprising a polymer; and c) a first and second substrate layer each comprising a polymer, the first and second substrate layers disposed between the core layer and the first and second outer layers respectively; wherein each of i) the first substrate layer, ii) the second substrate layer, iii) the first outer layer, and iv) the second outer layer, comprises primary fatty amidic wax; and wherein the first outer layer comprises primary fatty amidic wax in an amount of 15% to 50% by weight of the amount of primary fatty amidic wax in the first substrate layer; and the second outer layer comprises primary fatty amidic wax in an amount of 15% to 50% by weight of the amount of primary fatty amidic wax in the second substrate layer.