发明名称 |
Polypropylene compositions methods of making the same |
摘要 |
This invention relates to propylene homopolymer compositions obtained from metallocene catalysis wherein the polymer has a molecular weight distribution (Mw/Mn) in the range of from 4.0 to 20.0. The propylene homopolymer composition may be prepared in a multiple stage polymerization process using the same metallocene component in at least two stages. The composition may comprise isotactic homopolymer in one embodiment, and have a hexane extractables of less than 2 wt % in one embodiment. The composition is useful in making films.
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申请公布号 |
US2003088022(A1) |
申请公布日期 |
2003.05.08 |
申请号 |
US20020177073 |
申请日期 |
2002.06.20 |
申请人 |
LIN CHON Y.;CHEN MICHAEL C.;MEHTA ASPY K.;CHUDGAR RAJAN K. |
发明人 |
LIN CHON Y.;CHEN MICHAEL C.;MEHTA ASPY K.;CHUDGAR RAJAN K. |
分类号 |
C08F4/659;C08F4/6592;C08F10/00;C08F110/06;C08F297/08;C08J9/12;C08L23/12;(IPC1-7):C08G63/48 |
主分类号 |
C08F4/659 |
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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