| 摘要 |
<p>A heat-shrinkable multi-layer film endowed with good optical and mechanical properties, improved shrinkability and sealability comprising a core layer consisting essentially of a blend of ethylene-propylene copolymer and/or ethylene-propylene-butene-1 terpolymer with polypropylene homopolymer, and two outer layers each comprising a major proportion of a polymeric material selected from the group consisting of ethylene-propylene-butene-1 terpolymers, ethylene-propylene copolymers and blends thereof.</p> |
