NON-CYCLOPENTADIENYL-BASED CHROMIUM CATALYSTS FOR OLEFIN POLYMERIZATION
    1.
    发明申请
    NON-CYCLOPENTADIENYL-BASED CHROMIUM CATALYSTS FOR OLEFIN POLYMERIZATION 有权
    用于烯烃聚合的非环丙烯二酸的铬催化剂

    公开(公告)号:US20150148502A1

    公开(公告)日:2015-05-28

    申请号:US14116788

    申请日:2012-05-11

    摘要: 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.

    摘要翻译: 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-C 1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,中性非质子性杂环烷基,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。