发明名称 |
PROCESS FOR PRODUCING POLYOLEFIN FILMS |
摘要 |
Process for producing an oriented polyolefm film using a multi- component polymer composition provided by a primary polymer component comprising an isotactic propylene homopolymer produced by the polymerization of propylene in the presence of a Ziegler-Natta catalyst and a secondary polymer component comprising a metallocene polymerized isotactic propylene polymer having a xylene solubles content which is less than that of the primary polymer component. The secondary polymer component is a propylene homopolymer or an ethylene-propylene random copolymer having an ethylene content of about 0.5 wt.% or less. The polymer components are separately co-extruded to form a multilayer co-extrudate in which the primary polymer component is present in an amount greater than the secondary polymer component. The multilayer co-extrudate is oriented in at least one direction to form an oriented film. |
申请公布号 |
WO2007027457(A2) |
申请公布日期 |
2007.03.08 |
申请号 |
WO2006US32409 |
申请日期 |
2006.08.17 |
申请人 |
FINA TECHNOLOGY, INC.;MCLEOD, MICHAEL, A. |
发明人 |
MCLEOD, MICHAEL, A. |
分类号 |
B29C47/06;B29C55/06 |
主分类号 |
B29C47/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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