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.
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
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