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公开(公告)号：US10208144B2
公开(公告)日：2019-02-19
申请号：US15677814
申请日：2017-08-15
Applicant: Basell Polyolefine GmbH
Inventor： Shahram Mihan , Gerhardus Meier , Ulf Schueller , Michael Schiendorfer , Jens Wiesecke
IPC: C08F2/00 , C08F10/00 , C08F110/02 , C08F10/02 , H01B1/12
Abstract: A process for the preparation of polyolefins by polymerizing olefins at temperatures of from 20 to 200° C. and pressures of from 0.1 to 20 MPa in the presence of a polymerization catalyst and an antistatically acting composition in a polymerization reactor, wherein the antistatically acting composition is a mixture comprising an oil-soluble surfactant and water and the use of an antistatically acting composition comprising an oil-soluble surfactant and water as antistatic agent for the polymerization of olefins at temperatures of from 20 to 200° C. and pressures of from 0.1 to 20 MPa in the presence of a polymerization catalyst.
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公开(公告)号：US10113017B2
公开(公告)日：2018-10-30
申请号：US15526977
申请日：2015-10-27
Applicant: BASELL POLYOLEFINE GMBH
Inventor： Gerd Mannebach , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schuller , Iakovos Vittorias , Harilaos Mavridis
Abstract: A polyethylene composition made from or containing a polyethylene, having the following features: 1) a density from about 0.930 to about 0.945 g/cm3, determined according to ISO 1183 at 23° C.; 2) a ratio of MIF/MIP from about 10 to less than about 30; 3) a MIF from about 3 to about 25 g/10 min.; 4) a Mz equal to or greater than about 1,500,000 g/mol; and 5) a long-chain branching index, LCBI, equal to or lower than about 0.55, wherein the LCBI is the ratio of the measured mean-square radius of gyration Rg, measured by GPC-MALLS, to the mean-square radius of gyration for a linear PE having the about same molecular weight of 1,000,000 g/mol.
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公开(公告)号：US09790303B2
公开(公告)日：2017-10-17
申请号：US15321637
申请日：2015-06-22
Applicant: Basell Polyolefine GmbH
Inventor： Reinhard Kuehl , Rodrigo Carvajal , Gerhardus Meier , Elke Damm , Phil Pyman
IPC: C08F210/06 , C08F2/14 , C08F210/16 , C08F4/642 , C08F4/68
CPC classification number: C08F210/16 , C08F2/14 , C08F2400/02 , C08F2/00 , C08F2/001 , C08F210/14 , C08F210/08
Abstract: A method for controlling a slurry polymerization for the preparation of polyethylene, where the polyethylene is formed in a polymerization reactor comprising a vapor section by contacting a Ziegler-type catalyst, ethylene, and either hydrogen or, as comonomer(s), one or more C3 to C10 alpha-olefins or hydrogen and one or more C3 to C10 alpha-olefins, wherein the ethylene partial pressure is maintained by adjusting the flow rate of the catalyst to the polymerization reactor and the hydrogen/ethylene and comonomer/ethylene partial pressure ratios are maintained by adjusting the flow rates of hydrogen and/or of the one or more comonomers to the polymerization reactor.
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公开(公告)号：US20170198069A1
公开(公告)日：2017-07-13
申请号：US15320701
申请日：2015-06-17
Applicant: Basell Polyolefine GmbH
Inventor： Gerhardus Meier , Ulf Schüller , Harilaos Mavridis , Bernd Lothar Marczinke , Diana Dötsch , Jens Wiesecke
CPC classification number: C08F10/02 , C08L23/06 , C08L23/0815 , C08L2205/02 , C08L2205/025 , C08F210/16 , C08F2/001 , C08F2/34 , C08F210/14 , C08F2500/12 , C08F2500/13 , C08F2500/07
Abstract: Polyethylene composition for injection molding with a beneficial balance of environmental stress cracking resistance and impact resistance in combination with low warpage and beneficial processing behavior, said composition having the following features: 1) density of 0.945 g/cm3 or higher; 2) MIE from 1 to 30 g/10 min.; 3) ratio MIF/MIE from 15 to 30; 4) ER values from 0.40 to 0.52.
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公开(公告)号：US09353206B2
公开(公告)日：2016-05-31
申请号：US14437456
申请日：2013-10-22
Applicant: Basell Polyolefine GmbH
Inventor： Iakovos Vittorias , Jens Wiesecke , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schüller , Volker Dolle , Johannes-Friedrich Enderle , Dieter Lilge , Barbara Gall
CPC classification number: C08L23/06 , B29C49/00 , C08F210/16 , C08J5/00 , C08J2323/06 , C08J2323/08 , C08J2423/06 , C08J2423/08 , C08L23/0815 , C08L2205/025 , C08L2308/00 , C08L2314/02
Abstract: Polyethylene composition with improved swell ratio and mechanical properties, particularly suited for preparing blow-moulded articles, said composition having the following features: 1) density from 0.952 to 0.960 g/cm3; 2) ratio MIF/MIP from 17 to 30; 3) Shear-Induced Crystallization Index SIC from 2.5 to 5.0.
Abstract translation: 所述组合物具有以下特征：1）密度为0.952至0.960g / cm3;具有改进的膨胀比和机械性能的聚乙烯组合物，特别适用于制备吹塑制品。 2）比例MIF / MIP从17到30; 3）剪切诱导结晶指数SIC为2.5〜5.0。
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Patent Agency Ranking
26.发明申请公开(公告)号：US20160108148A1
公开(公告)日：2016-04-21
申请号：US14891506
申请日：2014-05-13
Applicant: BASELL POLYOLEFINE GMBH
Inventor： Gabriele Mei , Pietro Baita , Lorella Marturano , Antonio Mazzucco , Roberta Pica , Gerhardus Meier , Ulf Schueller
IPC: C08F110/02
CPC classification number: C08F110/02 , C08F2/001 , C08F2/002 , C08F4/654 , C08F4/6543 , C08F4/6548 , C08F4/655 , C08F4/6565 , C08F10/02 , C08F2/34 , C08F2500/18 , C08F2500/24 , C08F4/6492 , C08F4/6425
Abstract: A process for the gas-phase polymerization of ethylene or a mixture of ethylene and one or more 1 olefins in the presence of a polymerization catalyst system comprising the steps a) feeding a solid catalyst component, which was obtained by contacting at least a magnesium compound and a titanium compound, to a continuously operated apparatus and contacting the solid catalyst component with an aluminum alkyl compound at a temperature of from 0° C. to 70° C. in a way that the mean residence time of the solid catalyst component in contact with the aluminum alkyl compound is from 5 to 300 minutes; b) transferring the catalyst component formed in step a) into another continuously operated apparatus and prepolymerizing it with ethylene or a mixture of ethylene and one or more 1 olefins in suspension at a temperature of from 10° C. to 80° forming polymer in an amount of from 0.2 to 25 g polymer/g of solid catalyst component in a way that the mean residence time of the solid catalyst component in the apparatus is from 5 minutes to 3 hours; and c) transferring the prepolymerized catalyst component formed in step b) into a gas-phase polymerization reactor and polymerizing ethylene or a mixture of ethylene and one or more 1 olefins in the presence of the prepolymerized catalyst component at temperatures of from 40° C. to 120° C. and pressures of from 0.1 to 10 MPa.
Abstract translation: 一种在聚合催化剂体系存在下乙烯或乙烯与一种或多种烯烃的混合物进行气相聚合的方法，包括步骤a）进料固体催化剂组分，该固体催化剂组分是通过使至少一种镁化合物 和钛化合物连接到连续操作的装置上，并使固体催化剂组分与烷基铝化合物在0℃至70℃的温度下接触，使得固体催化剂组分的平均停留时间接触 烷基铝化合物为5至300分钟; b）将步骤a）中形成的催化剂组分转移到另一个连续操作的装置中，并将其与乙烯或乙烯和一种或多种1种烯烃在悬浮液中的混合物在10℃至80℃的温度下预聚合形成聚合物 以固体催化剂组分在设备中的平均停留时间为5分钟至3小时的方式，其量为0.2至25g聚合物/ g固体催化剂组分; 和c）将步骤b）中形成的预聚合的催化剂组分转移到气相聚合反应器中，并在预聚合的催化剂组分存在下在40℃的温度下聚合乙烯或乙烯和一种或多种烯烃的混合物 至120℃，压力为0.1至10MPa。
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公开(公告)号：US11976184B1
公开(公告)日：2024-05-07
申请号：US18083690
申请日：2022-12-19
Applicant: Basell Polyolefine GmbH
Inventor： Andreas Maus , Timo Hees , Pascal Rebmann , Diana Doetsch , Katharina Elsas , Harilaos Mavridis , Gerhardus Meier
IPC: C08L23/06
CPC classification number: C08L23/06 , C08L2203/14 , C08L2203/16 , C08L2205/025 , C08L2207/066
Abstract: A process for producing a low density polyethylene with modified melt flow index, comprising subjecting to thermal visbreaking a precursor polyethylene (I) comprising 35% by weight or more of LDPE and blending the so obtained intermediate polyethylene product (II) with an additional polyethylene (III).
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公开(公告)号：US11479660B2
公开(公告)日：2022-10-25
申请号：US16461862
申请日：2017-10-30
Applicant: BASELL POLYOLEFINE GMBH
Inventor： Diana Doetsch , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Rainer Sattel , Peter Bisson
Abstract: A polyethylene composition for producing blow-molded hollow articles, having the following features: 1) density from 0.940 to 0.955 g/cm3 determined according to ISO 1183 at 23° C.; 2) ratio MIF/MIP from 12 to 30; 3) Mz from 2,000,000 to 4,500,000 g/mol; 4) η0.02 from 160,000 to 300,000 Pa·s; and 5) long-chain branching index, LCBI, equal to or greater than 0.75.
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公开(公告)号：US11078307B1
公开(公告)日：2021-08-03
申请号：US16967387
申请日：2019-02-04
Applicant: Basell Polyolefine GmbH
Inventor： Pietro Baita , Maurizio Dorini , Giulia Mei , Gerhardus Meier , Giuseppe Penzo , Riccardo Rinaldi
Abstract: A gas-phase polymerization reactor for the gas-phase polymerization of olefins including a polymerization zone having a recycle line for (a) withdrawing reaction gas from the reactor, (b) leading the reaction gas through a heat-exchanger for cooling, and (c) feeding the reaction gas back to the reactor, wherein the recycle line has the heat-exchanger, a centrifugal compressor having variable guide vanes, and a butterfly valve, and a related process for preparing an olefin polymer in the gas-phase polymerization reactor.
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30.发明授权公开(公告)号：US10968291B2
公开(公告)日：2021-04-06
申请号：US16348636
申请日：2017-11-09
Applicant: Basell Polyolefine GmbH
Inventor： Gerhardus Meier , Ulf Schueller , Gabriele Mei , Massimo Covezzi , Pietro Baita , Lorella Marturano
Abstract: A process for preparing an ethylene polymer including the step of homopolymerizing ethylene or copolymerizing ethylene with one or more comonomers in a gas-phase polymerization reactor including a riser unit wherein growing polymer particles flow upwards under fluidization, fast fluidization or transport conditions and a downcomer wherein growing polymer particles flow downward in a densified form, wherein the hold-up of polymer particles in the downcomer is from 55 wt. % to 80 wt. % of the total hold-up of polymer particles in the gas-phase polymerization reactor.
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