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公开(公告)号：US10899041B2
公开(公告)日：2021-01-26
申请号：US16507987
申请日：2019-07-10
Applicant: Basell Polyolefine GmbH
Inventor： Peter Kruempel , Elke Damm , Reinhard Kuehl , Phil Pyman
IPC: B29B7/72 , B29B7/00 , B29B9/06 , B29B7/90 , B29B7/88 , B29B7/48 , B29C48/285 , G05D11/13 , B29B7/42 , B29B7/60 , B29C48/04 , B29C48/00 , B29C48/92 , C08J3/20 , C08J3/22 , C08K3/04 , B29B9/12 , B29C48/03 , B29B7/38 , B29K23/00 , B29K105/16 , B29K507/04
Abstract: A process for continuously preparing a polyolefin composition made from or containing a bimodal or multimodal polyolefin and one or more additives in an extruder device equipped with at least one hopper. The process includes the steps of supplying a bimodal or multimodal polyolefin in form of a polyolefin powder to the hopper; (a) measuring the flow rate of the polyolefin powder or (b) measuring the flow rate of the prepared polyolefin pellets; supplying one or more additives to the hopper; adjusting the flow rates of the additives supplied to the hopper in response to the measured flow rate of the polyolefin powder or adjusting the flow rate of the polyolefin powder in response to the measured flow rate of the polyolefin pellets; melting and homogenizing the polyolefin powder and additives within the extruder device; and pelletizing the molten polyolefin composition into the polyolefin pellets.
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公开(公告)号：US20190337190A1
公开(公告)日：2019-11-07
申请号：US16423829
申请日：2019-05-28
Applicant: Basell Polyolefine GmbH
Inventor： Peter Kruempel , Harald Prang , Reinhard Kuehl , Elke Damm
IPC: B29B7/72 , B29B7/00 , B29B9/06 , B29B7/90 , B29B7/88 , B29B7/48 , B29C48/285 , G05D11/13 , B29B7/42 , B29B7/60 , B29C48/04 , C08J3/22 , C08K3/04 , B29C48/92 , C08J3/20 , B29C48/00 , B29B9/12
Abstract: A process for continuously preparing a polyolefin composition made from or containing a polyolefin and carbon black in an extruder device. The process includes the steps of supplying polyolefin in form of a polyolefin powder and carbon black to a mixing device; alternatively, (a) measuring the flow rate of the polyolefin powder supplied to the mixing device or (b) measuring the flow rate of the polyolefin pellets prepared in the extruder device; adjusting the flow rate of the carbon black to the mixing device in response to the measured flow rate of the polyolefin powder or adjusting the flow rate of the polyolefin powder to the mixing device in response to the measured flow rate of the polyolefin pellets; melting and homogenizing the mixture within the extruder device; and pelletizing the polyolefin composition into the polyolefin pellets.
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公开(公告)号：US20180022842A1
公开(公告)日：2018-01-25
申请号：US15503299
申请日：2015-08-13
Applicant: Basell Polyolefine GmbH
Inventor： Gerhardus Meier , Elke Damm , Reinhard Kuehl , Rodrigo Carvajal , Phil Pyman
IPC: C08F110/02
CPC classification number: C08F110/02 , C08F10/02 , C08F2500/05 , C08F2/001 , C08F2/18 , C08F2500/26
Abstract: A slurry polymerization process for the preparation of polyethylene in a reactor cascade of two or more polymerization reactors including the steps of feeding to a polymerization reactor amounts of ethylene, of a Ziegler catalyst, of fresh aluminum alkyl and of a diluent; feeding the slurry product withdrawn from the polymerization reactor to a second polymerization reactor; and feeding additional amounts of ethylene and of diluent wherein the ethylene is first passed through an ethylene purification unit, which reduces at least the concentration of carbon monoxide, carbon dioxide, oxygen, acetylene and water contained in the ethylene, before it is fed to the two or more polymerization reactors of the reactor cascade.
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公开(公告)号：US20190329451A1
公开(公告)日：2019-10-31
申请号：US16507987
申请日：2019-07-10
Applicant: Basell Polyolefine GmbH
Inventor： Peter Kruempel , Elke Damm , Reinhard Kuehl , Phil Pyman
IPC: B29B7/72 , B29B7/00 , B29B9/06 , B29B7/90 , B29B7/88 , B29B7/48 , B29C48/285 , G05D11/13 , B29B7/42 , B29B7/60 , B29C48/04 , C08J3/22 , C08K3/04 , B29C48/92 , C08J3/20 , B29C48/00 , B29B9/12
Abstract: A process for continuously preparing a polyolefin composition made from or containing a bimodal or multimodal polyolefin and one or more additives in an extruder device equipped with at least one hopper. The process includes the steps of supplying a bimodal or multimodal polyolefin in form of a polyolefin powder to the hopper; (a) measuring the flow rate of the polyolefin powder or (b) measuring the flow rate of the prepared polyolefin pellets; supplying one or more additives to the hopper; adjusting the flow rates of the additives supplied to the hopper in response to the measured flow rate of the polyolefin powder or adjusting the flow rate of the polyolefin powder in response to the measured flow rate of the polyolefin pellets; melting and homogenizing the polyolefin powder and additives within the extruder device; and pelletizing the molten polyolefin composition into the polyolefin pellets.
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公开(公告)号：US09809659B2
公开(公告)日：2017-11-07
申请号：US15321152
申请日：2015-06-22
Applicant: Basell Polyolefine GmbH
Inventor： Giuseppe Penzo , Rodrigo Carvajal , Reinhard Kuehl , Elke Damm
Abstract: A process for the preparation of polyethylene by polymerizing in a slurry ethylene and optionally one or more C3 to C10 alpha-olefins in a reactor system comprising a polymerization reactor and one or more first heat exchangers located outside the polymerization reactor where the slurry in the polymerization reactor is cooled by withdrawing slurry from the polymerization reactor, cooling the slurry in the one or more first heat exchangers and returning the cooled slurry to the polymerization reactor, wherein the one or more first heat exchangers are cooled by a first coolant having a temperature of 29° C. or higher.
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Patent Agency Ranking
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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7.发明公开公开(公告)号：US20240343847A1
公开(公告)日：2024-10-17
申请号：US18580415
申请日：2022-07-05
Applicant: Basell Polyolefine GmbH
Inventor： Diana Doetsch , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Elke Damm , Claudio Fibla
IPC: C08F210/16 , C08L23/06 , C08L23/08
CPC classification number: C08F210/16 , C08L23/06 , C08L23/0815 , C08L2205/025 , C08L2314/02
Abstract: A polyethylene composition having the following features:
1) a density from 0.957 to 0.968 g/cm3;
2) a ratio MIF/MIP from 12 to 30;
3) a MIF from 41 to 60 g/10 min.;
4) a long-chain branching index, LCBI, equal to or greater than 0.45; and
5) a ratio (η0.02/1000)/LCBI from 45 to 75.-
公开(公告)号：US12103988B2
公开(公告)日：2024-10-01
申请号：US17312822
申请日：2019-12-16
Applicant: Basell Polyolefine GmbH
Inventor： Giuseppe Penzo , Gerhardus Meier , Ulf Schueller , Pietro Baita , Giulia Mei , Elke Damm
IPC: C08F210/16 , B01J8/00 , B01J8/18 , B01J8/26 , B01J21/04 , B01J23/42 , B01J23/44 , B01J23/72 , C08F2/01 , C08F2/34 , C08F110/02
CPC classification number: C08F110/02 , B01J8/0055 , B01J8/1827 , B01J8/1863 , B01J8/1881 , B01J8/26 , B01J21/04 , B01J23/42 , B01J23/44 , B01J23/72 , C08F210/16 , C08F2/01 , C08F2/34
Abstract: A process for preparation of an ethylene polymer in a gas-phase polymerization unit comprising a gas-phase polymerization reactor by homopolymerizing ethylene or copolymerizing ethylene and one or more C4-C12-1-alkenes in a reaction gas made from or containing propane as polymerization diluent in the presence of a pre-activated polymerization catalyst, wherein a purified propane feed stream made from or containing at least 99 mol % propane and from 0.1 to 100 ppm mol propylene is fed to the gas-phase polymerization unit.
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公开(公告)号：US20240093010A1
公开(公告)日：2024-03-21
申请号：US17945336
申请日：2022-09-15
Applicant: Basell Polyolefine GmbH
Inventor： Ulf Schueller , Sebastian Wilhelm , Harald Schmitz , Andreas Maus , Bernd Lothar Marczinke , Elke Damm , Gerhardus Meier , Eric D. Day , Sameer D. Mehta , Harilaos Mavridis
IPC: C08L23/08
CPC classification number: C08L23/0815
Abstract: A polyethylene composition particularly suited for producing blow-molded hollow articles, having the following features:
1) density from 0.948 to 0.955 g/cm3;
2) ratio MIF/MIE from 60 to 120;
3) MIF from 15 to 45 g/10 min.;
4) ER values from 2 to 5.0;
said composition being obtainable by contacting a precursor polyethylene composition with a radical initiator.-
公开(公告)号：US20240093009A1
公开(公告)日：2024-03-21
申请号：US17945329
申请日：2022-09-15
Applicant: Basell Polyolefine GmbH
Inventor： Ulf Schueller , Sebastian Wilhelm , Harald Schmitz , Andreas Maus , Bernd Lothar Marczinke , Elke Damm , Gerhardus Meier , Eric D. Day , Sameer D. Mehta , Harilaos Mavridis
IPC: C08L23/06 , C08F110/02 , C08K5/14
CPC classification number: C08L23/06 , C08F110/02 , C08K5/14 , C08F2800/10 , C08L2207/062
Abstract: A polyethylene composition particularly suited for producing blow-molded hollow articles, having the following features:
1) density from more than 0.955 to 0.965 g/cm3;
2) ratio MIF/MIE from 60 to 125;
3) MIF from 15 to 40 g/10 min.;
4) ER values from 3.0 to 5.5;
5) 110.02 equal to or lower than 150,000 Pa·s.
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