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    Metallocene catalysts and their use in polymerization processes
    25.
    发明授权
    Metallocene catalysts and their use in polymerization processes 有权
    茂金属催化剂及其在聚合工艺中的应用

    公开(公告)号：US08598287B2

    公开(公告)日：2013-12-03

    申请号：US12739308

    申请日：2008-10-09

    申请人： Chi-I Kuo ,  Dongming Li ,  Ching-Tai Lue ,  Francis C. Rix ,  Mark G Goode ,  Daniel P. Zilker, Jr. ,  Tae Hoon Kwalk

    发明人： Chi-I Kuo ,  Dongming Li ,  Ching-Tai Lue ,  Francis C. Rix ,  Mark G Goode ,  Daniel P. Zilker, Jr. ,  Tae Hoon Kwalk

    IPC分类号： C08F4/6592 ,  C08F4/643 ,  C08L23/14

    CPC分类号： B01J31/2295 ,  B01J2531/48 ,  B01J2531/49 ,  C08F4/65912 ,  C08F4/65916 ,  C08F210/16 ,  C08F4/65925 ,  C08F4/65927

    摘要： A process for polymerizing olefin(s) utilizing a cyclic bridged metallocene catalyst system to produce polymers with improved properties is provided. The catalyst system may include a cyclic bridged metallocene, LA(R′SiR′)LBZrQ2, activated by an activator, the activator comprising aluminoxane, a modified aluminoxane, or a mixture thereof, and supported by a support, where: LA and LB are independently an unsubstituted or a substituted cyclopentadienyl ligand bonded to Zr and defined by the formula (C5H4-dRd), where R is hydrogen, a hydrocarbyl substituent, a substituted hydrocarbyl substituent, or a heteroatom substituent, and where d is 0, 1, 2, 3 or 4; LA and LB are connected to one another with a cyclic silicon bridge, R′SiR′, where R′ are independently hydrocarbyl or substituted hydrocarbyl substituents that are connected with each other to form a silacycle ring; and each Q is a labile hydrocarbyl or a substituted hydrocarbyl ligand.

    摘要翻译： 提供了利用环状桥连金属茂催化剂体系聚合烯烃以制备具有改进性能的聚合物的方法。 催化剂体系可以包括由活化剂活化的环状桥连金属茂LA（R'SiR'）LBZrQ2，活化剂包括铝氧烷，改性铝氧烷或其混合物，并由载体支持，其中：LA和LB是 独立地是未取代的或取代的环戊二烯基配体，其与Zr键合并由式（C5H4-dRd）定义，其中R是氢，烃基取代基，取代的烃基取代基或杂原子取代基，其中d是0,1,2 ，3或4; LA和LB通过环硅桥R'SiR'彼此连接，其中R'独立地是彼此连接形成硅环的烃基或取代的烃基取代基; 并且每个Q是不稳定的烃基或取代的烃基配体。

    AC WHITE LED DEVICE
    26.
    发明申请
    AC WHITE LED DEVICE 有权
    交流白光LED装置

    公开(公告)号：US20130221870A1

    公开(公告)日：2013-08-29

    申请号：US13883832

    申请日：2011-03-01

    申请人： Hongjie Zhang ,  Ming Zhang ,  Chengyu Li ,  Kun Zhao ,  Dongming Li ,  Li Zhang

    发明人： Hongjie Zhang ,  Ming Zhang ,  Chengyu Li ,  Kun Zhao ,  Dongming Li ,  Li Zhang

    IPC分类号： H05B33/08

    CPC分类号： H05B33/0845 ,  H01L27/15 ,  H01L33/502 ,  H05B33/0809 ,  H05B33/0821

    摘要： An Alternate Current (AC) white Light-Emitting Diode (LED) device is provided, which belongs to the technical field of white LED manufacturing. The problem to be solved by the present invention is to low-costly overcome a series of deficiencies such as the stroboflash of an AC driven LED, and the heat dissipation difficulty caused by an integrated packaging of multiple LEDs. A white LED unit includes an LED chip and a light emitting material that can emit light when being excited by the LED chip. The luminous lifetime of the light emitting material is 1-100 ms. The LED chip only comprises one PN junction. The light emitted by the LED chip is mixed with the light emitted by the light emitting material to form white light. The white LED unit is driven by AC with a frequency not more than 100 Hz. The white LED device of prevent invention uses the single PN junction chip, rather than the prior integrated packaged AC multi-LED chip.

    摘要翻译： 提供交流（AC）白光发光二极管（LED）装置，属于白光LED制造技术领域。 本发明要解决的问题是低成本地克服了诸如AC驱动LED的闪光灯等一系列缺陷以及由多个LED的集成封装引起的散热困难。 白色LED单元包括LED芯片和当被LED芯片激发时可以发光的发光材料。 发光材料的发光寿命为1-100ms。 LED芯片仅包括一个PN结。 由LED芯片发出的光与由发光材料发射的光混合，形成白光。 白色LED单元由AC不超过100 Hz的频率驱动。 防止发明的白色LED装置使用单个PN结芯片，而不是现有的集成封装的交流多LED芯片。