MULTILAYER POLYOLEFIN FILM HAVING A CORE AND ONE OUTER LAYER FORMED FROM ETHYLENE-ALPHA-OLEFIN COPOLYMER OF SIMILAR CHARACTERISTICS AND A SECOND OUTER LAYER COMPRISING A BLEND OF DIFFERENT ETHYLENE-ALPHA-OLEFIN COPOLYMERS

摘要

A polyolefin blown or slot cast monolayer or multilayer stretch film useful as a trayed overwrap e.g. for fresh red meat includes at least three layers in the multilayer embodiment each of which contains an ethylene alpha-olefin copolymer having a density below 0.915 g/cm<3> and having a melting point of at least 90 DEG C with at least one outer layer and preferably also the first outer layer (50) or the core layer (51) having a second ethylene alpha olefin copolymer having a melting point less than 80 DEG C blended therein. $$