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14 条记录 (耗时 0.014 秒)

    CATALYST AND PREPARATION THEREOF
    1.
    发明申请
    CATALYST AND PREPARATION THEREOF 有权

    公开(公告)号：US20210079128A1

    公开(公告)日：2021-03-18

    申请号：US16771306

    申请日：2018-12-20

    申请人： BOREALIS AG

    发明人： Alexander REZNICHENKO ,  Jari-Jussi RUSKEENIEMI ,  Joseph THORMAN ,  Xiao Dong CHEN ,  Victor SUMERIN

    IPC分类号： C08F4/651 ,  C08F210/16 ,  B01J4/00 ,  C08F4/654

    摘要： The present invention relates to a process for producing of solid particulate olefin polymerisation catalyst or catalyst carrier comprising forming a solution of the catalyst or a catalyst carrier in a solvent, subjecting the solution into an atomization by spraying the solution via a capillary vibrating spray nozzle with a capillary orifice having a diameter of 5 to 100 μm generating a laminar jet of liquid, which disintegrates into liquid droplets entering into the spray-dryer, transforming the droplets with aid of a gas to solid particulate catalyst or carrier in the spray-dryer and recovering the solid particulate olefin polymerisation catalyst or carrier having particle size distribution defined by a volumetric SPAN of 0.7 or less. The invention further relates to the catalyst produced by the methods, and use thereof in olefin polymerisation process.

    PROCESS
    2.
    发明公开
    PROCESS 审中-公开

    公开(公告)号：US20230416428A1

    公开(公告)日：2023-12-28

    申请号：US18039082

    申请日：2021-11-26

    申请人： BOREALIS AG

    发明人： Tuan Anh TRAN ,  Alexandra Romina ALBUNIA ,  Qizheng DOU ,  Victor SUMERIN ,  Markku VAHTERI ,  Jarmo KELA

    IPC分类号： C08F210/16 ,  C08J5/18

    CPC分类号： C08F210/16 ,  C08J5/18 ,  C08J2323/08 ,  C08J2423/08

    摘要： The invention provides a process for the preparation of a multimodal high density polyethylene (HDPE) having a density of greater than 950 kg/m, a Mz of at least 1000 kDa and a melt flow rate (MFR5) of 0.01 to 4.0 g/10 min, said process comprising: (i) polymerising ethylene in a first polymerisation stage in the presence of a Ziegler-Natta catalyst to prepare a first ethylene homopolymer; (ii) polymerising ethylene in a second polymerisation stage in the presence of said catalyst and said first ethylene homopolymer to prepare an ethylene homopolymer mixture comprising said first ethylene homopolymer and a second ethylene homopolymer; and (iii) polymerising ethylene and at least one alpha-olefin comonomer in a third polymerisation stage in the presence of said catalyst and said ethylene homopolymer mixture to prepare said multimodal HDPE; wherein the split for the third polymerisation stage is at least 50%.

    PROCESS FOR PRODUCING POLYETHYLENE
    3.
    发明申请
    PROCESS FOR PRODUCING POLYETHYLENE 审中-公开

    公开(公告)号：US20190292284A1

    公开(公告)日：2019-09-26

    申请号：US16438690

    申请日：2019-06-12

    申请人： BOREALIS AG

    发明人： Victor SUMERIN ,  Joseph THORMAN ,  Jani AHO ,  Markku VAHTERI ,  Ravindra TUPE ,  Jarmo KELA

    IPC分类号： C08F210/16 ,  C08L23/16

    摘要： The present invention relates to a process for producing ethylene copolymers in a multistage process comprising at least one slurry phase polymerization stage and at least one gas phase polymerization stage in the presence of Ziegler Natta catalyst comprising a solid catalyst component, a cocatalyst of a compound of group 13 metal and an external additive selected from alkoxysilanes of formula (1) R1nSi(OR2)4-n, (I) where n is an integer 0 to 3, each R1 are equal or different and are selected among H, halogen, alkyl groups of 1 to 6 10 carbon atoms optionally substituted with one or more halogen atoms, alkenyl groups of 2 to 6 carbon atoms optionally substituted with one or more halogen atoms, and aryl groups of 6 to 12 carbon atoms optionally substituted with one or more halogen atoms, or the R1 groups can form with the Si atom they are linked to a ring of 3 to 8 ring atoms, provided that all R1 are not hydrogen, R2 are equal or different and are selected among alkyl groups of 1 to 6 carbon atoms optionally substituted with one or more halogen atoms, alkenyl groups of 2 to 6 carbon atoms optionally substituted with one or more halogen atoms, and aryl groups of 6 to 12 carbon atoms optionally substituted with one or more halogen atoms, or the OR2 groups can form with the Si atom they are linked to a ring of 3 to 8 ring atoms, halogen is Br, Cl or F. The invention further relates to the catalysts and use thereof in said multistage process r for producing ethylene copolymers having melt flow rate ratio FRR21/5 at least 40 and/or polydispersity index PDI of at least 27.

    POLYMER COMPOSITION AND A PROCESS FOR PRODUCTION OF THE POLYMER COMPOSITION
    4.
    发明申请
    POLYMER COMPOSITION AND A PROCESS FOR PRODUCTION OF THE POLYMER COMPOSITION 审中-公开

    公开(公告)号：US20190292283A1

    公开(公告)日：2019-09-26

    申请号：US16306296

    申请日：2017-05-29

    申请人： BOREALIS AG

    发明人： Yi LIU ,  Victor SUMERIN ,  Ravindra TUPE

    IPC分类号： C08F210/16 ,  C08F4/655 ,  C08F4/649 ,  C08F4/659 ,  C08L23/08

    摘要： A polyethylene composition comprising a base resin is disclosed herein. The base resin includes an ethylene homo- or copolymer fraction (A1), and an ethylene homo- or copolymer fraction (A2). Fraction (A1) has a lower weight average molecular weight than fraction (A2). The base resin has a melt flow rate MFR21 of equal to or less than 8.0 g/10 min and a density of 930 to 950 kg/m3. The polyethylene composition has a melt flow rate MFR5 of 0.01 to 0.3 g/10 min, a flow rate ratio FRR21/5 of equal to or more than 20 and a ratio of the weight average molecular weight and the number average molecular weight (Mw/Mn) of equal to or less than 30. Also the polyethylene composition has a tensile modulus of less than 1000 MPa. Also a process for the production of a polyethylene composition comprising polyethylene base resin is disclosed herein.

    ZIEGLER-NATTA CATALYST AND PREPARATION THEREOF
    5.
    发明申请
    ZIEGLER-NATTA CATALYST AND PREPARATION THEREOF 有权

    公开(公告)号：US20210002390A1

    公开(公告)日：2021-01-07

    申请号：US16771305

    申请日：2018-12-27

    申请人： BOREALIS AG

    发明人： Victor SUMERIN ,  Georgy KIPIANI

    IPC分类号： C08F4/02 ,  C08F210/02 ,  C08F2/34 ,  C08F2/06 ,  C08F210/08 ,  C08F210/16

    摘要： This invention relates to a solid MgCb-based Natta catalyst component comprising a C2 to C6 alkyl tetrahydrofurfuryl ether as internal electron donor for producing olefin polymers and preparation of said catalyst component. Further, the invention relates to a Ziegler-Natta catalyst comprising said solid catalyst component, Group 13 metal compound as co-catalyst and optionally external additives. The invention further relates to the use of said catalyst component in producing olefin polymers, especially ethylene copolymers.

    PROCESS FOR PRODUCING POLYETHYLENE
    6.
    发明申请
    PROCESS FOR PRODUCING POLYETHYLENE 审中-公开

    公开(公告)号：US20180030179A1

    公开(公告)日：2018-02-01

    申请号：US15548882

    申请日：2016-02-04

    申请人： BOREALIS AG

    发明人： Victor SUMERIN ,  Joseph THORMAN ,  Jani AHO ,  Markku VAHTERI ,  Ravindra TUPE ,  Jarmo KELA

    IPC分类号： C08F210/16

    CPC分类号： C08F210/16 ,  C08L23/16 ,  C08F4/6465 ,  C08F2/001 ,  C08F210/14 ,  C08F2500/04 ,  C08F2500/12 ,  C08F2500/07 ,  C08F4/6492 ,  C08F4/6555

    摘要： The present invention relates to a process for producing ethylene copolymers in a multistage process comprising at least one slurry phase polymerization stage and at least one gas phase polymerization stage in the presence of Ziegler Natta catalyst comprising a solid catalyst component, a cocatalyst of a compound of group 13 metal and an external additive selected from alkoxysilanes of formula (I) R1nSi(OR2)4-n, (I) where n is an integer 0 to 3, each R1 are equal or different and are selected among H, halogen, alkyl groups of 1 to 6 10 carbon atoms optionally substituted with one or more halogen atoms, alkenyl groups of 2 to 6 carbon atoms optionally substituted with one or more halogen atoms, and aryl groups of 6 to 12 carbon atoms optionally substituted with one or more halogen atoms, or the R1 groups can form with the Si atom they are linked to a ring of 3 to 8 ring atoms, provided that all R1 are not hydrogen, R2 are equal or different and are selected among alkyl groups of 1 to 6 carbon atoms optionally substituted with one or more halogen atoms, alkenyl groups of 2 to 6 carbon atoms optionally substituted with one or more halogen atoms, and aryl groups of 6 to 12 carbon atoms optionally substituted with one or more halogen atoms, or the OR2 groups can form with the Si atom they are linked to a ring of 3 to 8 ring atoms, halogen is Br, Cl or F. The invention further relates to the catalysts and use thereof in said multistage process r for producing ethylene copolymers having melt flow rate ratio FRR21/5 at least 40 and/or polydispersity index PDI of at least 27.

    Ziegler-Natta Catalyst and Preparation Thereof
    7.
    发明申请
    Ziegler-Natta Catalyst and Preparation Thereof 审中-公开

    公开(公告)号：US20170349683A1

    公开(公告)日：2017-12-07

    申请号：US15536919

    申请日：2015-12-17

    申请人： Borealis AG

    发明人： Victor SUMERIN ,  Joseph THORMAN

    IPC分类号： C08F210/16

    CPC分类号： C08F210/16 ,  C08F210/08 ,  C08F2500/03 ,  C08F4/651

    摘要： This invention relates to a solid MgCl2 based Natta catalyst component for producing olefin polymers and preparation of said catalyst component. Further the invention relates to a Ziegler Natta catalyst comprising said solid catalyst component, Group 13 metal compound as cocatalyst and optionally external additives. The invention further relates to the use of said catalyst component in producing olefin polymers, especially ethylene polymers with desired properties.

    IMPROVING CATALYST PERFORMANCE IN MULTI-STAGE POLYOLEFIN PRODUCTION
    8.
    发明公开
    IMPROVING CATALYST PERFORMANCE IN MULTI-STAGE POLYOLEFIN PRODUCTION 审中-公开

    公开(公告)号：US20240294681A1

    公开(公告)日：2024-09-05

    申请号：US18572405

    申请日：2022-06-23

    申请人： BOREALIS AG

    发明人： Vasileios KANELLOPOULOS ,  Joana Elvira KETTNER ,  Matthias HOFF ,  Apostolos KRALLIS ,  Victor SUMERIN ,  Jani AHO ,  Kalle KALLIO ,  Irfan SAEED ,  Erno ELOVAINIO

    IPC分类号： C08F210/16 ,  C08F2/00 ,  C08F2/01 ,  C08F2/34 ,  C08F2/38 ,  C08F4/6592

    CPC分类号： C08F210/16 ,  C08F2/001 ,  C08F2/01 ,  C08F2/34 ,  C08F2/38 ,  C08F4/6592

    摘要： The disclosure relates to a process for polymerising olefins in multi stage polymerisation process configuration, the process comprising a) polymerising in a first polymerisation step first olefin monomer, optionally in the presence of at least one other alpha olefin comonomer, in the presence of a metallocene polymerisation catalyst so as to form a first polymer component (A); and b) transferring the first polymer component (A) into a separation unit to remove low molecule penetrants and to obtain separated solid polyolefin particles of the first polymer component (A*) and c) polymerising in in gas phase in a second polymerisation step second olefin monomer, optionally in the presence of at least one other alpha olefin comonomer in the presence of the separated solid polyolefin particles (A*) of step b), so as to form a second polymer component (B). The disclosure further relates to a method for improving performance of a metallocene polymerisation catalyst in a multi-stage olefin polymerisation, wherein a first polymer component (A) produced in a first polymerisation step is transferred into a separation unit to remove low molecule penetrants and to obtain separated solid polyolefin particles of the first polymer component (A*) prior to transferring the obtained separated solid polyolefin particles of the first polymer component (A*) to a further polymerisation step.