Frangible, spray dried agglomerated supports, method of making such supports, and olefin polymerization catalysts supported thereon
    1.
    发明授权
    Frangible, spray dried agglomerated supports, method of making such supports, and olefin polymerization catalysts supported thereon 失效
    易碎的,喷雾干燥的团聚载体,制备这种载体的方法和负载在其上的烯烃聚合催化剂

    公开(公告)号:US06329315B1

    公开(公告)日:2001-12-11

    申请号:US08878476

    申请日:1997-06-19

    IPC分类号: B01J2108

    摘要: Frangible, spray dried agglomerate catalyst supports are provided, e.g. of silica gel, which possess a controlled morphology of microspheroidal shape, rough, scabrous appearance, and interstitial void spaces which penetrate the agglomerate surface and are of substantially uniform size and distribution. The agglomerates also possess a 1-250 micron particle size, 1-1000 m2/gm. surface area, and an Attrition Quality Index (AQI) of at least 10. The agglomerates are derived from a mixture of dry milled inorganic oxide particles, e.g. silica gel, and optionally but preferably wet milled inorganic oxide particles, e.g. silica gel particles, (which preferably contain a colloidal segment of

    摘要翻译: 提供易碎的喷雾干燥的团聚体催化剂载体,例如 的硅胶,其具有受控的微球形状的形态,粗糙,粗糙的外观和穿透附聚物表面并且具有基本均匀的尺寸和分布的间隙空隙。 附聚物也具有1-250微米的粒度,1-1000m 2 / gm。 表面积和至少10的磨耗质量指数(AQI)。聚集体衍生自干磨的无机氧化物颗粒的混合物,例如。 硅胶,以及任选但优选湿法研磨的无机氧化物颗粒,例如。 硅胶颗粒(其优选含有<1微米颗粒的胶体部分)在水中成浆喷雾干燥。 高AQI保证凝聚物易碎,聚合性能提高。 认为受控的形态可以使附聚物的构成颗粒更均匀地浸渍或用常规的烯烃聚合催化剂涂覆。

    Metallocene and constrained geometry catalyst systems employing agglomerated metal oxide/clay support-activator and method of their preparation
    4.
    发明授权
    Metallocene and constrained geometry catalyst systems employing agglomerated metal oxide/clay support-activator and method of their preparation 有权
    使用聚集的金属氧化物/粘土载体 - 活化剂的金属茂和约束几何催化剂体系及其制备方法

    公开(公告)号:US06559090B1

    公开(公告)日:2003-05-06

    申请号:US09432008

    申请日:1999-11-01

    IPC分类号: B01J3100

    摘要: The present invention is directed to a coordinating catalyst system comprising at least one metallocene or constrained geometry pre-catalyst transition metal compound, (e.g., di-(n-butylcyclopentadienyl)zirconium dichloride), at least one support-activator (e.g., spray dried silica/clay agglomerate), and optionally at least one organometallic compound (e.g., triisobutyl aluminum), in controlled amounts, and methods for preparing the same. The resulting catalyst system exhibits enhanced activity for polymerizing olefins and yields polymer having very good morphology. The support-activator is a layered material having a negative charge on its interlaminar surfaces and is sufficiently Lewis acidic to activate the transition metal compound for olefin polymerization.

    摘要翻译: 本发明涉及包含至少一种金属茂或约束几何催化剂前催化剂过渡金属化合物(例如二氯化二(正丁基环戊二烯基)二氯化锆)),至少一种载体 - 活化剂(例如喷雾干燥 二氧化硅/粘土附聚物)和任选的至少一种有控制量的有机金属化合物(例如三异丁基铝)及其制备方法。 所得催化剂体系表现出增加的聚合烯烃的活性并产生具有非常好的形态的聚合物。 载体 - 活化剂是在其层间表面上具有负电荷的层状材料,并且足够的路易斯酸性以活化用于烯烃聚合的过渡金属化合物。

    Coordination catalyst systems employing agglomerated metal oxide/clay support-activator and method of their preparation
    6.
    发明授权
    Coordination catalyst systems employing agglomerated metal oxide/clay support-activator and method of their preparation 有权
    使用凝聚金属氧化物/粘土载体 - 活化剂的配位催化剂体系及其制备方法

    公开(公告)号:US06399535B1

    公开(公告)日:2002-06-04

    申请号:US09431771

    申请日:1999-11-01

    IPC分类号: B01J3100

    摘要: The present invention is directed to a coordinating catalyst system comprising at least one bidentate or tridentate ligand containing pre-catalyst transition metal compound, (e.g., 2,6-bis (2,4,6-trimethylarylamino)pyridyl iron dichloride), at least one support-activator (e.g., spray dried silica/clay agglomerate), and optionally at least one organometallic compound (e.g., triisobutyl aluminum), in controlled amounts, and methods for preparing the same. The resulting catalyst system exhibits enhanced activity for polymerizing olefins and yields polymer having very good morphology.

    摘要翻译: 本发明涉及一种配位催化剂体系,该体系包含至少一种二齿或三齿配体,其含有催化剂前催化剂过渡金属化合物(例如,2,6-双(2,4,6-三甲基芳基氨基)吡啶基二氯化锡),至少 一种支持活化剂(例如,喷雾干燥的二氧化硅/粘土聚集体)和任选的至少一种有控制量的有机金属化合物(例如三异丁基铝)及其制备方法。 所得催化剂体系表现出增加的聚合烯烃的活性并产生具有非常好的形态的聚合物。