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公开(公告)号：US10570277B2
公开(公告)日：2020-02-25
申请号：US16463790
申请日：2017-10-30
Applicant: BASELL POLYOLEFINE GMBH
Inventor： Diana Doetsch , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Elke Damm , Claudio Fibla
Abstract: A polyethylene composition for producing blow-molded hollow articles, having the following features: 1) density from greater than 0.952 to 0.957 g/cm3, determined according to ISO 1183-1 at 23° C.; 2) ratio MIF/MIP from 12 to 25; 3) MIF from 18 to 40 g/10 min.; 4) η0.02 from 30,000 to 55,000 Pa·s; 5) long-chain branching index, LCBI, equal to or greater than 0.55; 6) ratio (η0.02/1000)/LCBI from 55 to 75.
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12.发明申请公开(公告)号：US20190322775A1
公开(公告)日：2019-10-24
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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公开(公告)号：US20160108147A1
公开(公告)日：2016-04-21
申请号：US14889794
申请日：2014-05-13
Applicant: Basell Polyolefine GmbH
Inventor： Giuseppe Penzo , Gabriele Mei , Gerhardus Meier , Ulf Schueller , Antonio Ciarrocchi
IPC: C08F110/02 , B01J19/24
CPC classification number: C08F110/02 , B01J8/0025 , B01J8/1863 , B01J8/1872 , B01J8/26 , B01J19/245 , B01J2208/00274 , B01J2208/00292 , B01J2208/00557 , B01J2208/00752 , B01J2208/00761 , B01J2208/00769 , B01J2208/00991 , B01J2219/24 , C08F10/00 , C08F2/001 , C08F2/34 , C08F2/01 , C08F2500/12 , C08F2500/07 , C08F2500/24 , C08F2500/18
Abstract: A process for polymerizing olefins in at least two serially connected gas-phase polymerization reactors, the process for transferring polyolefin particles from a first gas-phase polymerization reactor to a second gas-phase polymerization reactor comprising the steps of: a) discharging polyolefin particles into a separation chamber being at a lower pressure than the pressure in the first reactor; b) transferring the polyolefin particles within the separation chamber into a lower part which contains a bed of polyolefin particles which moves from top to bottom of this part of the separation chamber and into which a fluid is introduced so that an upward fluid stream is induced, c) withdrawing polyolefin particles from the lower end and transferring them to one of at least two lock hoppers working intermittently in parallel; and d) simultaneously pressurizing another of the at least two lock hoppers working intermittently by means of a gas comprising reaction gas coming from the second reactor.
Abstract translation: 一种在至少两个串联连接的气相聚合反应器中聚合烯烃的方法，将聚烯烃颗粒从第一气相聚合反应器转移到第二气相聚合反应器的方法，包括以下步骤：a）将聚烯烃颗粒排入 分离室的压力低于第一反应器中的压力; b）将分离室内的聚烯烃颗粒转移到下部，该下部包含聚烯烃颗粒床，该聚烯烃颗粒床从分离室的该部分的顶部移动到底部，并且引入流体以使得向上的流体流被引入， c）从下端取出聚烯烃颗粒并将它们转移到平行间歇工作的至少两个锁定料斗之一; 以及d）通过包含来自所述第二反应器的反应气体的气体同时对所述至少两个所述至少两个锁定料斗中的另一个进行加压。
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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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15.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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Patent Agency Ranking
公开(公告)号：US10358509B2
公开(公告)日：2019-07-23
申请号：US15559792
申请日：2016-03-23
Applicant: Basell Polyolefine GmbH
Inventor： Volker Fraaije , Michael Lynch , Shahram Mihan , Gerhardus Meier , Ulf Schueller
IPC: C08F10/02
Abstract: The present disclosure relates to a continuous process for the preparation of ethylene homopolymers or ethylene copolymers comprising polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a chromium catalyst in a gas-phase polymerization reactor which is equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat-exchanger for cooling and feeding the reactor gas back to the reactor, wherein the polymerization is carried out at a temperature from 30° C. to 130° C. and a pressure of from 0.1 to 10 MPa and an aliphatic carboxylic acid ester having from 8 to 24 carbon atoms is added.
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公开(公告)号：US20190055328A1
公开(公告)日：2019-02-21
申请号：US16079229
申请日：2017-02-23
Applicant: Basell Polyolefine GmbH
Inventor： Gerhardus Meier , Ulf Schueller , Claudio Fibla , Shahram Mihan
IPC: C08F10/02
Abstract: A process for the preparation of an ethylene polymer including the step of polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a Phillips-type chromium catalyst in a gas-phase polymerization reactor containing a reactor bed of particulate polymer, wherein the gas-phase polymerization reactor is equipped with a cycle gas line, wherein the reactor gas returned to the polymerization reactor through the cycle gas line has been condensed in part and the amount of liquid in the returned reactor gas is from 0.5 wt. % to 10 wt. % based upon the total weight of the reactor gas/liquid composition, the polymerization is carried out at from 108° C. to 125° C., and an aluminum alkyl is fed into the polymerization reactor in an amount in the range of from 0.0025 mole to 0.1 mole per ton of dosed ethylene.
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公开(公告)号：US20180079842A1
公开(公告)日：2018-03-22
申请号：US15559792
申请日：2016-03-23
Applicant: Basell Polyolefine GmbH
Inventor： Volker Fraaije , Michael Lynch , Shahram Mihan , Gerhardus Meier , Ulf Schueller
IPC: C08F10/02
CPC classification number: C08F10/02 , C08F2500/07 , C08F210/16 , C08F2/005 , C08F2/007 , C08F210/14 , C08F2500/12 , C08F2500/13 , C08F2500/14 , C08F2500/26 , C08F4/24
Abstract: The present disclosure relates to a continuous process for the preparation of ethylene homopolymers or ethylene copolymers comprising polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a chromium catalyst in a gas-phase polymerization reactor which is equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat-exchanger for cooling and feeding the reactor gas back to the reactor, wherein the polymerization is carried out at a temperature from 30° C. to 130° C. and a pressure of from 0.1 to 10 MPa and an aliphatic carboxylic acid ester having from 8 to 24 carbon atoms is added.
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公开(公告)号：US20180072876A1
公开(公告)日：2018-03-15
申请号：US15560424
申请日：2016-03-23
Applicant: Basell Polyolefine GmbH
Inventor： Gerd Mannebach , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Shahram Mihan , Andreas Maus , Pietro Baita , Maria Di Diego , Lorella Marturano
CPC classification number: C08L23/06 , B01J8/224 , B01J8/24 , C08F2/34 , C08F2/44 , C08F10/00 , C08F10/02 , C08F210/16 , C08F2500/04 , C08F2500/07 , C08F2500/12 , C08K5/0075 , C08L71/02 , C08F2/005 , C08F110/02 , C08F2/001
Abstract: A process for preparing a polyolefin, including polymerizing olefins in the presence of an antistatic agent made from or containing an alkylene oxide derived polymer made from or containing in average from about 10 to about 200 repeating units —(CH2—CHR—O)— with R being hydrogen or an alkyl group having from 1 to 6 carbon atoms, wherein the alkylene oxide derived polymer is a random copolymer of ethylene oxide and other alkylene oxides and a ratio of n:m is in the range of from 6:1 to 1:1, wherein (n) is the average number of repeating units —(CH2—CH2—O)— derived from ethylene oxide and (m) is the average number of repeating units —(CH2—CHR′—O)— derived from the other alkylene oxides with R′ being an alkyl group having from 1 to 6 carbon atoms, and the end groups of the alkylene oxide derived polymer are —OH groups.
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公开(公告)号：US09873754B2
公开(公告)日：2018-01-23
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
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.
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