Patent ID: 8071188

Claim:
A sealed package comprising a polymer film and an article, wherein said polymer film consists of a peelable block copolymeric substrate consisting of over 95% of the total film thickness and a sealable, non-peelable skin layer on the substrate, wherein said skin layer consists essentially of a polyethylene/polypropylene/polybutylene terpolymer and has a thickness from about 0.1 Î¼m to about 1.5 Î¼m, and wherein said package is formed by wrapping said film around said article in a manner to obtain at least one region of film overlap, and heat sealing the resulting overlapped film sections to each other to provide at least one sealed region of the package, the sealed region being subsequently openable by manually separating the overlapped film sections, effective without substantial tearing of said film at or around said sealed region.