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6 条记录 (耗时 0.036 秒)

    POLYOLEFIN FOR PREPARING FIBER AND FIBER COMPRISING THE SAME (As Amended)
    1.
    发明申请
    POLYOLEFIN FOR PREPARING FIBER AND FIBER COMPRISING THE SAME (As Amended) 审中-公开

    公开(公告)号：US20180016370A1

    公开(公告)日：2018-01-18

    申请号：US15548736

    申请日：2016-03-28

    申请人： LG CHEM LTD

    发明人： Young Suk YOU ,  Se Young KIM ,  Soon Ho SUN ,  Eun Kyoung SONG ,  Seung Mi LEE ,  Yi Young CHOI ,  Ki Soo LEE ,  Sun Mi KIM

    IPC分类号： C08F110/02 ,  D01F6/04

    摘要： The present invention relates to polyolefin powder for preparing fiber, and fiber comprising the same. According to the present invention, provided is polyolefin, which exhibits a high molecular weight range and narrow molecular weight distribution and in which the formation of a gel deteriorating the quality of fiber is reduced. Therefore, by using the polyolefin, the present invention exhibits molecular weight, density and narrow molecular weight distribution, which are equivalent to those of conventional polyolefin, but the number of gels having a large particle diameter is remarkably reduced, and therefore, the present invention can provide fiber having excellent tenacity and tensile strength half-life.

    CATALYST COMPOSITION AND METHOD OF PREPARING POLYOLEFIN USING THE SAME
    3.
    发明申请
    CATALYST COMPOSITION AND METHOD OF PREPARING POLYOLEFIN USING THE SAME 审中-公开

    公开(公告)号：US20180030166A1

    公开(公告)日：2018-02-01

    申请号：US15551200

    申请日：2015-12-11

    申请人： LG CHEM, LTD.

    发明人： Jin Young PARK ,  Yong Ho LEE ,  Seung Mi LEE ,  Ki Soo LEE ,  Eun Ji SHIN ,  Seok Pil SA ,  Seul Ki IM

    IPC分类号： C08F10/00 ,  C07C2/32

    摘要： Provided are a catalyst composition and a method of oligomerizing olefins using the same. When the catalyst composition according to the present invention is used, oligomerization and copolymerization of olefin monomers may be performed in a single reactor at the same time with high efficiency without a separate process of preparing alpha-olefin. Therefore, costs for preparing or purchasing comonomers which are expensive raw materials may be reduced, thereby reducing the production cost of a final product. Contents of SCB (short chain branch) and LCB (long chain branch) in the polyolefin may be increased without separate feeding of comonomers, thereby producing high-quality linear low-density polyethylene.

    A PREPARATION METHOD OF A SUPPORTED METALLOCENE CATALYST
    6.
    发明申请
    A PREPARATION METHOD OF A SUPPORTED METALLOCENE CATALYST 有权
    支持的金属催化剂的制备方法

    公开(公告)号：US20160304637A1

    公开(公告)日：2016-10-20

    申请号：US15033866

    申请日：2014-11-28

    申请人： LG CHEM, LTD.

    发明人： Seung Mi LEE ,  Yi Young CHOI ,  Ki Soo LEE ,  Eun Kyoung SONG ,  Heon Yong KWON ,  Min Seok CHO ,  Dae Sik HONG ,  Hyun Jee KWON ,  Yu Taek SUNG ,  Dong Hoon JEONG

    IPC分类号： C08F110/02

    CPC分类号： C08F110/02 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F10/00 ,  C08F2420/05 ,  C08F2500/18 ,  C08F4/6592

    摘要： The present invention relates to a preparation method of a highly active supported metallocene catalyst which can prepare a polyolefin of high bulk density. More specifically, the present invention provides a method of preparing the supported metallocene catalyst in which one or more metallocene catalysts are loaded on the silica carrier of which the inside is penetrated by more cocatalyst than the prior art and the outside is attached with a substantial amount of the cocatalyst. The catalyst according to the present invention can prepare a polyolefin polymer with improved bulk density and efficiency while maintaining its highly active catalytic characteristic.

    摘要翻译： 本发明涉及一种能够制备高堆积密度的聚烯烃的高活性负载金属茂催化剂的制备方法。 更具体地说，本发明提供一种制备负载型茂金属催化剂的方法，其中一种或多种茂金属催化剂装载在二氧化硅载体上，其内部被比现有技术更多的助催化剂渗透，外部附着有大量的 的助催化剂。 根据本发明的催化剂可以制备具有改进堆积密度和效率的聚烯烃聚合物，同时保持其高活性催化特性。