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    SUBSTITUTED SILANES AS CHAIN TRANSFER AGENTS FOR POLYOLEFIN PRODUCTION
    2.
    发明申请
    SUBSTITUTED SILANES AS CHAIN TRANSFER AGENTS FOR POLYOLEFIN PRODUCTION 审中-公开

    公开(公告)号：WO2021202349A1

    公开(公告)日：2021-10-07

    申请号：PCT/US2021/024602

    申请日：2021-03-29

    申请人： DOW GLOBAL TECHNOLOGIES LLC

    发明人： KRASOVSKIY, Arkady, L. ,  KONSTANTINOV, Ivan, A. ,  BROWN, Hayley, A. ,  DEMIRORS, Mehmet

    IPC分类号： C08F2/38 ,  C08F110/02 ,  C08F118/08 ,  C08F4/34

    摘要： Embodiments are directed to a method of making an olefin-based polymer by free-radical polymerization in a reactor system. The method includes initiating a free-radical polymerization of an olefin-based monomer, propagating growth of the olefin-based polymer during continued free-radical polymerization of the olefin-based monomer, and adding to the reactor system a chain transfer agent that terminates the growth of the olefin-based polymer. The chain transfer agent includes a silane. Examples of suitable silanes are: triethylsilane, diethylmethylsilane, tris(trimethylsilyl)silane, n-butylsilane, dimethylphenylsilane, phenylsilane, chlorodimethylsilane, diisopropylaminosilane, 1,2-bis(dimethylsilyl) benzene, 1,3-bis(dimethylsilyl) benzene, 1,4-bis(dimethylsilyl)benzene, 1,1, 3,3-tetramethyldisiloxane, trimethylsilane, (trimethylsilyl)dimethylsilane, and bis(trimethylsilyl)methylsilane.

    THIOUREA GROUP IV TRANSITION METAL CATALYSTS AND POLYMERIZATION SYSTEMS
    5.
    发明申请
    THIOUREA GROUP IV TRANSITION METAL CATALYSTS AND POLYMERIZATION SYSTEMS 审中-公开
    硫脲脲IV族过渡金属催化剂和聚合体系

    公开(公告)号：WO2018063799A1

    公开(公告)日：2018-04-05

    申请号：PCT/US2017/051292

    申请日：2017-09-13

    申请人： DOW GLOBAL TECHNOLOGIES LLC

    发明人： KRASOVSKIY, Arkady, L. ,  SZUROMI, Endre

    IPC分类号： C08F210/16 ,  C08F4/64

    摘要： Catalyst compositions and polymerization systems include at least one thiourea complex according to Formula (I): MQ a X 4-a (I) in which M is Ti, Zr, or Hf; a is 1 or 2; each group Q of the thiourea complex is a bidentate thiourea ligand bound to the metal center and having Formula (Ia), Formula (Ib), or Formula (Ic): (Formulas should be inserted here). In Formulas (Ia), (Ib), and (Ic), each group R 1 , R 2 , and R 3 is independently chosen from alkyl groups or aryl groups; each group Z 1 or Z 2 is independently chosen from alkylene groups. If a = 2, groups R 1 of the two groups Q are optionally linked, or groups R 3 of the two groups Q are optionally linked. Each X is covalently bonded or coordinated to the metal center and is independently chosen from alkyl groups or halides. The polymerization systems may be configured to copolymerize ethylene and α-olefins.

    摘要翻译： 催化剂组合物和聚合体系包含至少一种根据式（I）的硫脲络合物：其中在式（I）中的MQa-X 4-a（I） 其中M是Ti，Zr或Hf; a是1或2; 硫脲络合物的每个基团Q是键合到金属中心并且具有式（Ia），式（Ib）或式（Ic）的二齿硫脲配体：（在此插入式）。 在式（Ia），（Ib）和（Ic）中，独立地选择基团R 1，R 2和R 3各自 来自烷基或芳基; 每个基团Z 1或Z 2独立地选自亚烷基。 如果a = 2，则两个基团Q的基团R 1任选地连接，或者两个基团Q的基团R 3任选地连接。 每个X与金属中心共价键合或配位，并独立地选自烷基或卤化物。 聚合体系可以配置为共聚乙烯和α-烯烃。

    NONIONIC SURFACTANT COMPOSITIONS
    6.
    发明申请
    NONIONIC SURFACTANT COMPOSITIONS 审中-公开
    非离子表面活性剂组合物

    公开(公告)号：WO2013123153A1

    公开(公告)日：2013-08-22

    申请号：PCT/US2013/026088

    申请日：2013-02-14

    申请人： DOW GLOBAL TECHNOLOGIES LLC ,  ELOWE, Paul, R. ,  KRASOVSKIY, Arkady, L. ,  GRAF, Irina, V. ,  WANG, Lin ,  KRISTINE-LIGMAN FEIST, Rebekah ,  BOSCO, Jeffrey, P.

    发明人： ELOWE, Paul, R. ,  KRASOVSKIY, Arkady, L. ,  GRAF, Irina, V. ,  WANG, Lin ,  KRISTINE-LIGMAN FEIST, Rebekah ,  BOSCO, Jeffrey, P.

    IPC分类号： C07C215/08 ,  C07C215/10 ,  C07C215/14 ,  C07C215/20 ,  C07C215/38 ,  C07C213/08 ,  B01F17/00

    CPC分类号： C07C217/08 ,  C07C209/28 ,  C07C213/08 ,  C07C2601/14

    摘要： The present invention provides nonionic surfactants, compositions incorporating these surfactants, and related methods of making and using such surfactants and compositions. The nonionic surfactants demonstrate excellent equilibrium and dynamic surface tension properties as well as excellent wetting properties. Further, representative embodiments of the surfactants have shown low foaming characteristics, indicating that the surfactants would be suitable in applications where resistance to foaming is desired. The surfactants can be used singly or in combination with other nonionic and/or ionic surfactants as desired. As an overview, the nonionic surfactants of the present invention have a structure in which the surfactant backbone includes one or more amine moieties. At least one, preferably two or more branched, cyclic, fused cyclic, and/or spyro hydrophobic moieties are pendant from at least one of the amine moieties. Additionally, at least one, preferably two or more hydrophilic moieties, preferably alkylene oxide (i.e., polyether) chains also are pendant from at least one of the amine moieties.

    摘要翻译： 本发明提供非离子表面活性剂，掺入这些表面活性剂的组合物，以及制备和使用这些表面活性剂和组合物的相关方法。 非离子表面活性剂表现出优异的平衡和动态表面张力性能以及优异的润湿性能。 此外，表面活性剂的代表性实施方案已经显示出低发泡特性，表明表面活性剂将适用于需要耐发泡性的应用。 表面活性剂可以根据需要单独使用或与其它非离子和/或离子表面活性剂组合使用。 作为概述，本发明的非离子表面活性剂具有其中表面活性剂主链包括一个或多个胺部分的结构。 至少一个，优选两个或更多个支链，环状稠合环状和/或间苯二酚疏水部分从至少一个胺部分侧挂。 此外，至少一个，优选两个或更多个亲水部分，优选环氧烷（即聚醚）链也是至少一个胺部分的侧挂。