| 摘要 |
Heat-sealable polyolefin film made of or comprising at least one layer of a polyolefin composition comprising (percent by weight): A) 20% to 80% of a heterophasic polyolefin composition comprising: A<SUP>I</SUP>) 3% to 30% by weight of a crystalline olefin polymer fraction; A<SUP>II</SUP>) 70% to 97% by weight of an elastomeric fraction comprising at least an elastomeric copolymer of propylene or ethylene with 12 to 88% by weight of at least one alpha-olefin of formula H<SUB>2</SUB>C-CHR, where R is H or a C2-C10 linear or branched alkyl, optionally containing 0.5 to 5% by weight of a diene, and having solubility in xylene at room temperature greater than 50% by weight; B) 20% to 80% of at least one filler.
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