Solution polymerization process utilizing preassembled bimetallic Ziegler-Natta catalyst
    1.
    发明授权
    Solution polymerization process utilizing preassembled bimetallic Ziegler-Natta catalyst 失效
    溶液聚合法利用预组装的双金属齐格勒 - 纳塔催化剂

    公开(公告)号:US07144964B2

    公开(公告)日:2006-12-05

    申请号:US10921687

    申请日:2004-08-19

    IPC分类号: C08F4/68 C08F4/72 C08F4/52

    摘要: A high-temperature solution process for polymerizing ethylene is disclosed. The polymerization is performed in the presence of a preassembled bimetallic Ziegler-Natta catalyst and an aluminum compound. Molecular modeling calculations predict that the bimetallic Ziegler-Natta catalyst will have good activity and improved stability versus traditional Ziegler-Natta catalysts. This makes the catalyst especially suitable for solution polymerization processes, which require a thermally robust catalyst.

    摘要翻译: 公开了用于聚合乙烯的高温溶液方法。 在预组装的双金属齐格勒 - 纳塔催化剂和铝化合物的存在下进行聚合。 分子模拟计算预测,与传统的齐格勒 - 纳塔催化剂相比,双金属齐格勒 - 纳塔催化剂具有良好的活性和改进的稳定性。 这使得催化剂特别适用于需要热稳定催化剂的溶液聚合方法。

    Zwitterionic Metallocycles
    6.
    发明授权
    Zwitterionic Metallocycles 有权
    两性离子金属环

    公开(公告)号:US07005489B2

    公开(公告)日:2006-02-28

    申请号:US10673896

    申请日:2003-09-29

    IPC分类号: C08F4/76

    摘要: A new class of zwitterionic metallocycles is disclosed. A positively charged Group 4-10 transition metal is chelated to two heteroatoms and one of the heteroatoms has a substituent bearing a negative charge. We have found that substitution in this position stabilizes the zwitterion form of the metallocycle. The zwitterionic metallocycle is useful for olefin polymerizations.

    摘要翻译: 公开了一类新的两性离子金属摩尔。 带正电的4-10族过渡金属螯合成两个杂原子,其中一个杂原子具有负电荷的取代基。 我们发现在这个位置上的取代稳定了金属摩尔的两性离子形式。 两性离子金属摩尔可用于烯烃聚合。

    Device and method for providing a video signal of a virtual image
    8.
    发明授权
    Device and method for providing a video signal of a virtual image 有权
    用于提供虚像的视频信号的装置和方法

    公开(公告)号:US08379056B2

    公开(公告)日:2013-02-19

    申请号:US12394193

    申请日:2009-02-27

    IPC分类号: G09G5/00

    CPC分类号: H04N5/232 H04N5/2226

    摘要: A device for providing a video signal of a virtual image based on a real image of a camera, the real image having an object, includes a processing device. One piece of positional information each is associated with the camera and the object. The processing device generates the video signal of the virtual image based on the real image, the positional information of the camera and the positional information of the object. The virtual image includes an illustration of the object or object information with regard to the object.

    摘要翻译: 一种用于基于相机的真实图像提供虚像的视频信号的装置,具有对象的实像包括处理装置。 每个位置信息都与相机和对象相关联。 处理装置基于实际图像,相机的位置信息和对象的位置信息生成虚拟图像的视频信号。 虚拟图像包括关于对象的对象或对象信息的图示。

    Quality assurance method for olefin polymerization catalysts
    10.
    发明申请
    Quality assurance method for olefin polymerization catalysts 审中-公开
    烯烃聚合催化剂的质量保证方法

    公开(公告)号:US20100129924A1

    公开(公告)日:2010-05-27

    申请号:US12313575

    申请日:2008-11-21

    申请人: Sandor Nagy

    发明人: Sandor Nagy

    IPC分类号: G01N33/00

    摘要: A method for evaluating the quality of an olefin polymerization catalyst is disclosed. A single-site organometallic complex is reacted with a methyl alumoxane under controlled reaction conditions. The extent and/or dynamics of methane formation from the reaction are measured, and the results are used to predict the suitability of the complex and/or the methyl alumoxane for use in an olefin polymerization.

    摘要翻译: 公开了一种评价烯烃聚合催化剂质量的方法。 在受控反应条件下,将单位点有机金属络合物与甲基铝氧烷反应。 测量来自反应的甲烷形成的程度和/或动力学,结果用于预测复合物和/或甲基铝氧烷在烯烃聚合中的适用性。