| 摘要 |
<p>There is provided a thermoplastic film of at least two layers comprising:
a first layer comprising:
a third polymer having a melting point between 115 to 130°C, and
a second layer in direct contact with said first layer without any interposed thermoplastic film layer, said second layer comprising:
a first polymer having a melting point between 55 to 75°C, comprising a copolymer of ethylene and at least one ±-olefin, and
a second polymer having a melting point between 85 to 110°C, comprising a copolymer of ethylene and at least one ±-olefin.</p> |
