OLEFIN BLOCK COPOLYMER
    36.
    发明公开
    OLEFIN BLOCK COPOLYMER 有权
    烯烃嵌段共聚物

    公开(公告)号:EP2669304A2

    公开(公告)日:2013-12-04

    申请号:EP12739968.1

    申请日:2012-01-27

    申请人: LG Chem, Ltd.

    摘要: The present description relates to an olefin block copolymer with excellences in elasticity, heat resistance, and processability. The olefin block copolymer comprises a plurality of blocks or segments, each comprising an ethylene or propylene repeating unit and an α-olefin repeating unit at different mole fractions. The olefin block copolymer comprises polymer chains containing 20 to 100 short-chain branches (SCBs) per 1,000 carbon atoms. A point where a first derivative of the number Y of the SCBs per 1,000 carbon atoms of each polymer chain with respect to the molecular weight X of the polymer chain is 0 exists between the minimum and maximum values of the molecular weight X.

    摘要翻译: 本发明涉及具有优异的弹性,耐热性和可加工性的烯烃嵌段共聚物。 烯烃嵌段共聚物包含多个嵌段或链段,各自包含不同摩尔分数的乙烯或丙烯重复单元和α-烯烃重复单元。 烯烃嵌段共聚物包含每1000个碳原子含有20至100个短链支链(SCB)的聚合物链。 每个聚合物链中每1000个碳原子的SCB的数目Y的一阶导数相对于聚合物链的分子量X为0的点存在于分子量X的最小值与最大值之间。

    PREPARATION METHOD OF HYBRID SUPPORTED METALLOCENE CATALYST
    38.
    发明公开
    PREPARATION METHOD OF HYBRID SUPPORTED METALLOCENE CATALYST 审中-公开
    VERFAHREN ZUR HERSTELLUNG EINESGETRÄGERTENHYBRID-METALLOCENKATALYSATORS

    公开(公告)号:EP2623522A2

    公开(公告)日:2013-08-07

    申请号:EP11829569.0

    申请日:2011-09-28

    申请人: LG Chem, Ltd.

    摘要: The present invention relates to a preparation method of a metallocene catalyst. More particularly, the present invention relates to a preparation method of a supported hybrid metallocene catalyst, including the steps of treating a support having a water content of 4 to 7% by weight with trialkyl aluminum at a predetermined temperature; supporting alkyl aluminoxane on the support; and supporting a metallocene compound on the alkyl aluminoxane-supported support. According to the present invention, it is possible to prepare a supported hybrid metallocene catalyst which shows a high activity in the polymerization of olefins and enables the preparation of polyolefins having a high bulk density, by a simple process.

    摘要翻译: 本发明涉及茂金属催化剂的制备方法。 更具体地说,本发明涉及负载型杂化金属茂催化剂的制备方法,包括以下三个步骤:在预定温度下用三烷基铝处理含水率为4-7重量%的载体; 支持烷基铝氧烷; 并在烷基铝氧烷负载的载体上负载金属茂化合物。 根据本发明,可以通过简单的方法制备在烯烃聚合中表现出高活性的负载型杂化金属茂催化剂,并且能够制备堆积密度高的聚烯烃。