Patent ID: 8114491

Claim:
A film comprising: a skin layer comprising polyester; a base layer comprising styrenic block copolymer having a styrene monomer content of at least about 50 wt. %; and an intermediate layer between the skin and base layers and directly adjacent at least one of the skin layer and the base layer, the intermediate layer comprising: (i) from about 0.5% to about 20%, based on the weight of the intermediate layer, of ethylene/norbornene copolymer having a norbornene monomer content of from about 18 mole % to about 40 mole %; and (ii) one or more polymers selected from ethylene/unsaturated ester copolymer and styrenic block copolymer having a styrene monomer content of at most about 50 wt. %, wherein: the film has a free shrink at 100° C. in at least one direction of at least about 10%; and the thickness of the intermediate layer is at most about 25% of the total thickness of the film.