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发明授权
US6106938A Polypropylene composition and laminated and oriented film therefrom 失效
聚丙烯组合物及其层压取向薄膜

Polypropylene composition and laminated and oriented film therefrom
摘要：
A polypropylene composition for a laminated and oriented film comprising (A) 73 to 97% by weight of a crystalline propylene random copolymer having a propylene content of 60 to 97% by weight, an ethylene content of 0 to 6% by weight and an .alpha.-olefin content of 3 to 40% by weight, (B) 2.5 to 17% by weight of a propylene- .alpha.-olefin random copolymer having a propylene content of 35 to 75% by weight and an .alpha.-olefin content of 25 to 65% by weight, and (c) 0.5 to 10% by weight of a crystalline propylene polymer. A polypropylene composition for a laminated and oriented film being film-formed for a long time without hurting a transparency and a low temperature heat-sealing property and having an excellent solvent resistance and an excellent hot-tack property, and a laminated and oriented film having this composition on a surface layer are provided.
摘要（中）：

一种用于层压和取向膜的聚丙烯组合物，其包含（A）73至97重量％的丙烯含量为60至97重量％，乙烯含量为0至6重量％的结晶丙烯无规共聚物和α 烯烃含量为3〜40重量％，（B）2.5〜17重量％丙烯含量为35〜75重量％，α-烯烃含量为25〜65的丙烯-α-烯烃无规共聚物 （c）0.5-10重量％的结晶丙烯聚合物。 一种用于层压和取向膜的聚丙烯组合物，其长时间成膜而不损害透明性和低温热封性，并且具有优异的耐溶剂性和优异的热粘性，并且具有层压取向膜，其具有 提供了表面层上的这种组合物。

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