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    Non-cyclopentadienyl-based chromium catalysts for olefin polymerization
    26.
    发明授权
    Non-cyclopentadienyl-based chromium catalysts for olefin polymerization 有权
    用于烯烃聚合的非环戊二烯基铬催化剂

    公开(公告)号：US09422375B2

    公开(公告)日：2016-08-23

    申请号：US14931258

    申请日：2015-11-03

    Applicant: Dow Global Technologies LLC

    Inventor： Matthew D. Christianson ,  Timothy S. De Vries ,  Robert D J Froese ,  Matthias S. Ober ,  Jasson T. Patton ,  Duane R. Romer ,  Gordon R. Roof ,  Lixin Sun ,  Endre Szuromi ,  Curt N. Theriault ,  Dean M. Welsh ,  Timothy T. Wenzel ,  Paul H. Moran

    IPC: C07F11/00 ,  C08F4/78 ,  C08F10/00 ,  C08F210/06 ,  C08F110/06 ,  C08F110/02

    CPC classification number: C08F4/78 ,  C07F11/00 ,  C08F10/00 ,  C08F110/02 ,  C08F110/06 ,  C08F210/06 ,  C08F4/69112 ,  C08F210/16 ,  C08F2500/15

    Abstract: Provided is a non-cyclopentadienyl-based chromium-ligand complex, preferably a chromium-ligand complex of formula (J): LCr(RA)m(D)k (J), wherein L is a non-Cp monoanionic ligand; Cr (chromium) is in a formal oxidation state of +3 or +2; when Cr formally is Cr+3, either m is 1 and RA is hydrocarbylene (a hydrocarbylene chromium-ligand complex of formula (J)) or m is 2 and each RA independently is hydrocarbyl (a dihydrocarbyl chromium-ligand complex of formula (J)), wherein each hydrocarbyl or hydrocarbylene of RA independently is unsubstituted or substituted by from 1 to 5 RAS; each RAS independently is a neutral aprotic heteroalkyl, neutral aprotic heterocycloalkyl, neutral aprotic heteroaryl, or neutral aprotic aryl; when Cr formally is Cr+2, m is 1 and RA is hydrocarbyl (a hydrocarbyl chromium-ligand complex of formula (J)); k is an integer of 0 or 1; D is absent when k is 0 or D is a neutral ligand when k is 1; wherein the chromium-ligand complex of formula (J) is overall neutral and lacks a cyclopentadienyl-based (Cp-based) moiety. Also provided is a chromium catalyst comprising or prepared from the complex. Also provided is a process of making the catalyst and a process employing the chromium catalyst for polymerizing the olefin monomer, especially a straight chain 1-alkene, to prepare the polyolefin, especially a partially chain-straightened poly(1-alkene) or olefin block copolymer. Further provided is the partially chain-straightened poly(1-alkene) or olefin block copolymer prepared thereby. Also provided is a high throughput workflow.

    Abstract translation: 提供非环戊二烯基铬配体络合物，优选式（J）的铬配体络合物：LCr（RA）m（D）k（J），其中L是非Cp单阴离子配体; Cr（铬）处于+3或+2的正式氧化态; 当Cr正式为Cr + 3时，m为1，RA为亚烃基（式（J））的亚烃基铬 - 配体配合物）或m为2，各RA独立地为烃基（式（J）的二烃基铬 - 配体络合物 ）），其中RA的各个烃基或亚烃基独立地未被取代或被1至5个RAS取代; 每个RAS独立地是中性非质子杂烷基，中性非质子杂环烷基，中性非质子杂芳基或中性非质子性芳基; 当Cr正式为Cr + 2时，m为1，RA为烃基（式（J））的烃基铬 - 配体络合物）; k是0或1的整数; 当k为0时，D不存在，或当k为1时D为中性配体; 其中式（J）的铬配体络合物是总体中性的，并且缺少基于环戊二烯基的（Cp-基）部分。 还提供了包含或由络合物制备的铬催化剂。 还提供了制备催化剂的方法和使用铬催化剂聚合烯烃单体，特别是直链1-烯烃的方法，以制备聚烯烃，特别是部分链改性的聚（1-烯烃）或烯烃嵌段 共聚物。 进一步提供由其制备的部分链直链化的聚（1-烯烃）或烯烃嵌段共聚物。 还提供了高吞吐量的工作流程。

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