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公开(公告)号:US10144791B2
公开(公告)日:2018-12-04
申请号:US15433198
申请日:2017-02-15
发明人: Jerzy Klosin , Ruth Figueroa , Robert D J Froese
IPC分类号: C08F4/76 , C08F4/64 , C08F210/16 , C08F4/659
摘要: A process for preparing an olefin homopolymer or copolymer comprises contacting ethylene, an alpha-olefin, or a combination, and a catalytic amount of a metal-ligand complex catalyst of a particular formula that requires at least one halogen atom that is ortho to a bridging moiety. The strategic location of the halogen atom(s) ensures a product having a molecular weight that is predictably and significantly reduced in comparison with that of copolymers produced using otherwise identical metal-ligand complex catalysts that lack halogen atoms at the specified sites.
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公开(公告)号:US09605098B2
公开(公告)日:2017-03-28
申请号:US14781419
申请日:2014-06-26
发明人: Jerzy Klosin , Ruth Figueroa , Robert D J Froese
IPC分类号: C08F4/64 , C08F4/76 , C08F210/16 , C08F4/659
CPC分类号: C08F210/16 , C08F4/659 , C08F4/65908 , C08F4/65912 , C08F10/02 , C08F4/64193 , C08F210/14 , C08F2500/03
摘要: A process for preparing an olefin homopolymer or copolymer comprises contacting ethylene, an alpha-olefin, or a combination, and a catalytic amount of a metal-ligand complex catalyst of a particular formula that requires at least one halogen atom that is ortho to a bridging moiety. The strategic location of the halogen atom(s) ensures a product having a molecular weight that is predictably and significantly reduced in comparison with that of copolymers produced using otherwise identical metal-ligand complex catalysts that lack halogen atoms at the specified sites.
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公开(公告)号:US09951256B2
公开(公告)日:2018-04-24
申请号:US14636508
申请日:2015-03-03
发明人: Ming Ming , Shaoguang Feng , Yan Fei Liu , Robert D J Froese , Andreas Lutz , Glenn G. Eagle , Gary L. Jialanella , Eric E. Cole , Michael R. Golden
IPC分类号: C08G8/28 , C09J163/00 , C08G59/62 , C08G59/68 , C09J163/04
CPC分类号: C09J163/00 , C08G59/621 , C08G59/686 , C08L61/06 , C09J163/04
摘要: Epoxy adhesive compositions contain a heat-activatable catalyst. The heat-activatable catalyst includes a tertiary amine catalyst and a novolac resin that has a weight average molecular weight of at least 3000. One-component epoxy adhesive formulations that contain the heat-activatable catalyst have unexpectedly good storage stability.
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公开(公告)号:US09422375B2
公开(公告)日:2016-08-23
申请号:US14931258
申请日:2015-11-03
发明人: 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分类号: C07F11/00 , C08F4/78 , C08F10/00 , C08F210/06 , C08F110/06 , C08F110/02
CPC分类号: C08F4/78 , C07F11/00 , C08F10/00 , C08F110/02 , C08F110/06 , C08F210/06 , C08F4/69112 , C08F210/16 , C08F2500/15
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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公开(公告)号:US11214632B2
公开(公告)日:2022-01-04
申请号:US16338209
申请日:2017-09-29
发明人: Andrew M. Camelio , Arkady L. Krasovskiy , Matthew D. Christianson , Amaruka Hazari , Heather Spinney , Robert D J Froese
摘要: Embodiments are directed to monophosphaguanidine ligands and the bis ligated metal-complexes formed therefrom, wherein the metal-ligand complexes are polymerization catalysts comprising the following structure (I).
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公开(公告)号:US11028190B2
公开(公告)日:2021-06-08
申请号:US16337602
申请日:2017-09-28
IPC分类号: C07F9/02 , C07F9/28 , C08F4/64 , C08F210/16
摘要: Embodiments are directed to bis- and poly-phosphaguanidine compounds, and the metal-ligand complexes formed therefrom, wherein the metal complexes can be used as procatalysts in polyolefin polymerization. Formulas (I) (II) and (III).
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