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    PROCESS FOR THE PREPARATION OF MULTIMODAL HIGH DENSITY POLYETHYLENE
    1.
    发明申请
    PROCESS FOR THE PREPARATION OF MULTIMODAL HIGH DENSITY POLYETHYLENE 审中-公开

    公开(公告)号：WO2019229209A1

    公开(公告)日：2019-12-05

    申请号：PCT/EP2019/064134

    申请日：2019-05-30

    Applicant: BOREALIS AG

    Inventor： TRAN, Anh Tuan ,  ALBUNIA, Alexandra Romina ,  CHENG, Joy Jie ,  THORMAN, Joseph ,  JAMIESON, John ,  TUPE, Ravindra

    IPC: C08F110/02 ,  C08F2/00 ,  C08L23/08

    Abstract: The invention provides a process for the preparation of a multimodal high density polyethylene (HDPE) having a melt flow rate (MFR 2 ) of 0.1 to 4.0 g/1O 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 having a MFR 2 from 10 to 500 g/1O min; (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, said mixture having a MFR 2 from 50 to 1000 g/1O min; 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.

    JACKET WITH IMPROVED PROPERTIES
    2.
    发明申请
    JACKET WITH IMPROVED PROPERTIES 审中-公开
    具有改进性能的夹克

    公开(公告)号：WO2017207483A1

    公开(公告)日：2017-12-07

    申请号：PCT/EP2017/062883

    申请日：2017-05-29

    Applicant: BOREALIS AG

    Inventor： KONTRO, Anna ,  LIU, Yi ,  TUPE, Ravindra ,  SUMERIN, Victor

    IPC: C08F2/00 ,  C08F210/16 ,  C08L23/08

    Abstract: The present invention relates to a multimodal ethylene copolymer composition having a density of 920 to 949 kg/m 3 and a flexural modulus, wherein said flexural modulus is following the equation: Flexural modulus [MPa]

    Abstract translation: 本发明涉及密度为920至949kg / m 3和挠曲模量的多峰乙烯共聚物组合物，其中所述挠曲模量遵循以下方程： 挠曲模量[MPa] 21.35∙密度[kg / m3] - 19585 [1]。 根据本发明的多峰乙烯共聚物组合物可用于高度柔软的电缆护套，优选电力电缆护套。

    POLYMER COMPOSITION AND PROCESS FOR MAKING THE SAME
    3.
    发明申请
    POLYMER COMPOSITION AND PROCESS FOR MAKING THE SAME 审中-公开

    公开(公告)号：WO2020109556A1

    公开(公告)日：2020-06-04

    申请号：PCT/EP2019/083098

    申请日：2019-11-29

    Applicant: BOREALIS AG

    Inventor： RUEMER, Franz ,  TUPE, Ravindra ,  LESKINEN, Pauli ,  DOU, Qizheng ,  JAMIESON, John

    IPC: C08F210/16 ,  C08F2/00 ,  C08F4/6592 ,  C08F210/14 ,  C08F210/08 ,  C08L23/08

    Abstract: The present invention relates to a polymer composition, especially for pipe, and a process for making the composition. This process for making a polymer composition for pipe comprises polymerizing ethylene in at least two slurry reactors and at least one gas phase reactor connected in series, whereby the polyethylene composition comprises a) an ethylene copolymer as fraction (A), and b) an ethylene homo- or copolymer as fraction (B), with fraction (A) having a lower molecular weight than fraction (B), wherein a single-site catalyst (SSC) is used in the polymerisation of at least one of fractions (A) and/or (B), the composition having (i) a density of between 932 and 955 kg/m3, and (ii) a MFR5 (at 190°C / 5.00 kg) of between 0.5 and 3.5 g/10 min, wherein fraction (A) comprises two fractions (A1) and (A"), whereby fraction (A1) is produced in a first slurry loop reactor and fraction (A") is produced in a second loop reactor.

    POLYMER COMPOSITION AND A PROCESS FOR PRODUCTION OF THE POLYMER COMPOSITION
    5.
    发明申请
    POLYMER COMPOSITION AND A PROCESS FOR PRODUCTION OF THE POLYMER COMPOSITION 审中-公开
    聚合物组合物和生产聚合物组合物的方法

    公开(公告)号：WO2017207493A1

    公开(公告)日：2017-12-07

    申请号：PCT/EP2017/062902

    申请日：2017-05-29

    Applicant: BOREALIS AG

    Inventor： LIU, Yi ,  SUMERIN, Victor ,  TUPE, Ravindra

    IPC: C08L23/08

    Abstract: 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 MFR 21 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 MFR 5 of 0.01 to 0.3 g/10 min, a flow rate ratio FRR 21/5 of equal to or more than 20 and a ratio of the weight average molecular weight and the number average molecular weight (M w /M n ) 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.

    Abstract translation: 本文公开了包含基础树脂的聚乙烯组合物。 基础树脂包括乙烯均聚物或共聚物部分（A1）和乙烯均聚物或共聚物部分（A2）。 级分（A1）具有比级分（A2）更低的重均分子量。 基础树脂具有等于或小于8.0g / 10min的熔体流动速率MFR 21和930至950kg / m 3的密度。 所述聚乙烯组合物具有0.01至0.3g / 10min的熔体流动速率MFR 5 5，等于或大于20的流率比FRR 21/5和 重均分子量与数均分子量（M w / M n）之比等于或小于30.此外，聚乙烯组合物的拉伸模量 小于1000MPa。 本文还公开了生产包含聚乙烯基础树脂的聚乙烯组合物的方法。

    PROCESS FOR PRODUCING POLYETHYLENE
    6.
    发明申请
    PROCESS FOR PRODUCING POLYETHYLENE 审中-公开
    生产聚乙烯的方法

    公开(公告)号：WO2016124676A1

    公开(公告)日：2016-08-11

    申请号：PCT/EP2016/052354

    申请日：2016-02-04

    Applicant: BOREALIS AG

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

    IPC: C08F210/16 ,  C08F4/646 ,  C08F2/34 ,  C08L23/08

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

    Abstract: 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) R 1 n Si(OR 2 ) 4-n , (I) where n is an integer 0 to 3, each R 1 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 R 1 groups can form with the Si atom they are linked to a ring of 3 to 8 ring atoms, provided that all R 1 are not hydrogen, R 2 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 OR 2 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 FRR 21/5 at least 40 and/or polydispersity index PDI of at least 27.

    Abstract translation: 本发明涉及在多级方法中生产乙烯共聚物的方法，该方法包括在齐格勒纳塔催化剂存在下的至少一个淤浆相聚合阶段和至少一个气相聚合阶段，该催化剂包含固体催化剂组分，化合物的助催化剂 第13族金属和选自式（I）的烷氧基​​硅烷的外加剂R 1 n Si（OR 2）4-n，（I）其中n为0至3的整数，每个R 1相同或不同，选自H，卤素， 任选被一个或多个卤素原子取代的1至6个10个碳原子的烷基，任选被一个或多个卤素原子取代的2至6个碳原子的烯基，以及6至12个碳原子的芳基，任选被一个或多个 卤素原子，或者R1基团可以与它们连接到3至8个环原子的环上的Si原子一起形成，条件是所有R 1不是氢，R 2相同或不同，并且选自1至6个碳原子的烷基 任选被一个或多个卤素原子取代的碳原子，任选被一个或多个卤素原子取代的2至6个碳原子的烯基和任选被一个或多个卤素原子取代的6至12个碳原子的芳基或OR 2基团 可以与它们连接到3至8个环原子的环上的Si原子形成，卤素是Br，Cl或F.本发明进一步涉及催化剂及其用于生产具有熔体流动速率的乙烯共聚物的多级方法 比FRR21 / 5至少40和/或多分散指数PDI至少27。

    PROCESS FOR POLYMERISING ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE
    8.
    发明申请
    PROCESS FOR POLYMERISING ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE 审中-公开
    聚合超高分子量聚乙烯的方法

    公开(公告)号：WO2016050774A1

    公开(公告)日：2016-04-07

    申请号：PCT/EP2015/072437

    申请日：2015-09-29

    Applicant: BOREALIS AG

    Inventor： TUPE, Ravindra ,  FAGERSTOLT, Pernilla

    IPC: C08F110/02 ,  C08F4/655 ,  C08F2/14

    CPC classification number: C08F110/02 ,  C08F4/6555 ,  C08F2/14 ,  C08F110/06 ,  C08F4/6492 ,  C08F4/651 ,  C08F2500/01 ,  C08F2500/18 ,  C08F2500/17 ,  C08F2500/24 ,  C08F4/6465

    Abstract: The present invention deals with a process for polymerising ethylene in the presence of an olefin polymerisation catalyst comprising titanium, magnesium and halogen in at least one polymerisation stage where ethylene is polymerised in slurry, the process comprising treating the polymerisation catalyst in a pre-treatment step by polymerising an olefin on the polymerisation catalyst so that the ratio of the weight of the olefin polymer to the weight of the original solid catalyst component is from 0.1 to 10 g/g and using the pre-treated catalyst in the production of ultra-high molecular weight polyethylene.

    Abstract translation: 本发明涉及在至少一个聚合阶段的烯烃聚合催化剂存在下在乙烯聚合催化剂存在下聚合乙烯的方法，其中乙烯在浆料中聚合，该方法包括在预处理步骤中处理聚合催化剂 通过在聚合催化剂上聚合烯烃，使得烯烃聚合物的重量与原始固体催化剂组分的重量比为0.1-10g / g，并且使用预处理的催化剂生产超高分子量 分子量聚乙烯。

    GAS PHASE POLYMERIZATION PROCESS
    9.
    发明申请
    GAS PHASE POLYMERIZATION PROCESS 审中-公开
    气相聚合方法

    公开(公告)号：WO2015128469A1

    公开(公告)日：2015-09-03

    申请号：PCT/EP2015/054149

    申请日：2015-02-27

    Applicant: BOREALIS AG

    Inventor： KANELLOPOULOS, Vasileios ,  KRALLIS, Apostolos ,  AL-HAJ ALI, Mohammad ,  TUPE, Ravindra

    IPC: C08F2/01 ,  C08F2/34

    CPC classification number: C08F2/34 ,  C08F2/01 ,  C08F110/02

    Abstract: An olefin polymerization process comprising polymerizing olefins in gas phase in a fluidized bed in the presence of an olefin polymerization catalyst in a polymerization reactor having a vertical body; a generally conical downwards tapering bottom zone; a generally cylindrical middle zone having a height to diameter ratio L/D of at least 4, above and connected to said bottom zone; and a generally conical upwards tapering top zone above and connected to said middle zone wherein (i) fluidization gas is introduced to the bottom zone of the reactor from where it passes upwards through the reactor; (ii) the fluidization gas is withdrawn from the top zone of the reactor, filtered, compressed, cooled and returned into the bottom zone of the reactor; (iii) a fluidized bed is formed within the reactor where the growing polymer particles are suspended in the upwards rising gas stream; and (iv) there is no fluidization grid in the reactor; characterized in that the gas velocity is maintained in the reactor such that N Br is within the range of from 2.5 to 7.

    Abstract translation: 一种烯烃聚合方法，包括在具有垂直体的聚合反应器中，在烯烃聚合催化剂存在下，在流化床中气相聚合烯烃; 大致圆锥形的向下锥形底部区域; 大致圆柱形的中间区域，其高度与直径之比L / D至少为4，高于并连接到所述底部区域; 以及在所述中间区域上方并连接到所述中间区域的大致锥形的向上锥形顶部区域，其中（i）流化气体被引导到反应器的底部区域，从该区域向上通过反应器; （ii）流化气体从反应器的顶部区域排出，过滤，压缩，冷却并返回到反应器的底部区域; （iii）在反应器内形成流化床，其中生长的聚合物颗粒悬浮在向上升的气流中; 和（iv）反应器中不存在流化栅; 其特征在于，气体速度保持在反应器中，使得NBr在2.5至7的范围内。

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