POLYOLEFIN AND PREPARATION METHOD THEREOF
    6.
    发明申请
    POLYOLEFIN AND PREPARATION METHOD THEREOF 审中-公开
    聚烯烃及其制备方法

    公开(公告)号:US20100121006A1

    公开(公告)日:2010-05-13

    申请号:US12451198

    申请日:2008-05-02

    IPC分类号: C08F210/14 C08F210/08

    摘要: The present invention relates to a polyolefin that has high environmental stress cracking resistance (ESCR), a high impact property, and an excellent die swell property, and a method of preparing the same. According to the method of preparing polyolefin of the present invention, a supported hybrid metallocene catalyst and an alpha olefin comonomer having 4 or more carbon atoms are used to obtain polyolefin having the bimodal or multimodal molecular weight distribution curves during the single reactor polymerization. The polyolefin has excellent processability, a melt flow rate ratio (MFRR) that is useful to processing, excellent shapability, impact strength, tensile strength, in particular, environmental stress cracking resistance (ESCR) and full notch creep test (FNCT), thus being used to manufacture the blow molded product.

    摘要翻译: 本发明涉及具有高耐环境应力开裂性(ESCR),高冲击性和优异的模具膨胀性的聚烯烃及其制备方法。 根据本发明的制备聚烯烃的方法,使用负载的杂化茂金属催化剂和具有4个或更多个碳原子的α-烯烃共聚单体来获得在单反应器聚合期间具有双峰或多峰分子量分布曲线的聚烯烃。 聚烯烃具有优异的加工性能,对加工有用的熔体流动速率比(MFRR),优异的成形性,冲击强度,拉伸强度,特别是环境应力开裂性(ESCR)和全切口蠕变试验(FNCT),因此 用于制造吹塑产品。