Process for preparing carbazoles
    33.
    发明授权

    公开(公告)号:US10246415B2

    公开(公告)日:2019-04-02

    申请号:US15574051

    申请日:2016-05-27

    Abstract: A process for preparing one or more carbazoles comprising (a) contacting one or more compounds represented by formula (1) below with diboron reagents in the presence of PdCl2(dppf) to form one or more 2,2′-dichlorobiaryl represented by formula (2) below; and (b) contacting the one or more 2,2′-dichlorobiaryls with one or more H2N—Y compounds, in the presence of one or more palladium containing catalytic components; thereby forming one or more carbazoles represented by formula (3) below is provided.

    HYPERBRANCHED ETHYLENE-BASED OILS AND GREASES
    38.
    发明申请
    HYPERBRANCHED ETHYLENE-BASED OILS AND GREASES 有权
    超乙烯基乙烯和油脂

    公开(公告)号:US20160122259A1

    公开(公告)日:2016-05-05

    申请号:US14893732

    申请日:2014-06-24

    Abstract: A process to prepare a relatively inexpensive utility fluid comprises contacting together ethylene and a coordination-insertion catalyst and, optionally, an alpha-olefin, in a continuously-fed backmixed reactor zone under conditions such that a mixture of a hyperbranched oligomer and a branched oligomer is formed. The hyperbranched oligomer has an average of at least 1.5 methine carbons per oligomer molecule, and at least 40 methine carbons per one-thousand total carbons, and at least 40 percent of the methine carbons is derived from the ethylene, and the average number of carbons per molecule is from 25 to 100, and at least 25 percent of the hyperbranched oligomer molecules has a vinyl group and can be separated from the branched oligomer, which has an average number of carbons per molecule of up to 20. The coordination-insertion catalyst is characterized as having an ethylene/octene reactivity ratio up to 20 and a kinetic chain length up to 20 monomer units.

    Abstract translation: 制备相对便宜的实用流体的方法包括在连续供给的反混合反应器区域中将乙烯和配位插入催化剂和任选的α-烯烃在一起使得超支化低聚物和支链低聚物的混合物 形成了。 超支化低聚物每个低聚物分子平均具有至少1.5个次甲基碳,每千个总碳中至少有40个次甲基碳,至少40%的次甲基碳源自乙烯,平均碳数 每个分子为25至100,并且至少25%的超支化低聚物分子具有乙烯基并且可以与支化低聚物分离,其具有每分子平均碳数高达20个。配位插入催化剂 其特征在于具有高达20的乙烯/辛烯反应性比和至多20个单体单元的动力链长度。

    An Ethylene Based Polymer
    39.
    发明申请
    An Ethylene Based Polymer 审中-公开
    乙烯基聚合物

    公开(公告)号:US20150344601A1

    公开(公告)日:2015-12-03

    申请号:US14654868

    申请日:2013-12-10

    CPC classification number: C08F210/16 Y02P20/582 C08F4/64193

    Abstract: The instant invention provides an ethylene based polymer.In one embodiment, the instant invention provides an ethylene based polymer comprising the polymerization reaction product of ethylene with optionally one or more α-olefins in the presence of one or more first catalyst systems and optionally one or more second catalyst systems in a dual reactor system or a multiple reactor system, wherein first catalyst system comprises; (a) one ore more procatalysts comprising a metal-ligand complex of formula (I):

    Abstract translation: 本发明提供一种基于乙烯的聚合物。 在一个实施方案中,本发明提供一种乙烯基聚合物,其包含乙烯与任选的一种或多种α-烯烃在一种或多种第一催化剂体系存在下的聚合反应产物和任选的一种或多种第二催化剂体系的双重反应器体系 或多反应器系统,其中第一催化剂体系包括: (a)一种或多种前催化剂,其包含式(I)的金属 - 配体络合物:

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