Patent ID: 8445085

Claim:
A heat-sealable peelable multi-layer laminated polymeric film comprising a self-supporting polymeric film having on one side thereof a polymeric heat-sealable peelable layer and having on the opposite side thereof a polymeric shrinkable layer, wherein said shrinkable layer has a degree of shrinkage in a first dimension of about 10-80% over the temperature range 55 to 100° C., and a ratio of shrinkage at 100° C. in said first dimension relative to a second, orthogonal dimension in the range of 1:1 to 10:1, and wherein said shrinkable layer has a degree of shrinkage in one or both of said first and second dimension(s) that is greater than the degree of shrinkage of the self-supporting polymeric film in said dimension(s) when both are heated at substantially a same temperature within said temperature range.