SEALABLE POLYPROPYLENE FILMS WITH ENHANCED STABILITY

摘要

A multi-layered sealable film and method of storing and transporting a role of the film without buckling or starring, the film comprising a core layer comprising polypropylene sandwiched between at least a first and (optionally) second tie-layer on either side of the core; a sealable layer with two sides, one side adhered to the first tie-layer; wherein at least the first tie-layer comprising a blend of polypropylene and within the range of from 5 wt% to 40 wt% of a soft polymer additive, preferably a propylene-a-olefin elastomer having within the range of from 10 wt% to 30 wt% a-olefin derived units, wherein the blend is preferably partially or completely immiscible. A roll of the inventive films can be readily stored and transported without loss due to film defects.