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11.发明申请公开(公告)号：US20220227903A1
公开(公告)日：2022-07-21
申请号：US17614684
申请日：2020-05-28
Applicant: Basell Polyolefine GmbH
Inventor： Peter Rohrbach , Jürgen Perzlmeier , Mudit Ashtana , Harald Prang , Elke Damm
IPC: C08F210/16 , C08F2/01 , C08F2/18 , C08F210/08
Abstract: A process for preparing an ethylene polymer in a suspension polymerization including the steps of separating the formed suspension of ethylene polymer particles in a solid-liquid separator into wet ethylene polymer particles and mother liquor, drying the wet ethylene polymer particles by a gas stream and forming a gas stream carrying a hydrocarbon load, and thereafter separating the hydrocarbon load from the gas stream and thereby forming a liquid hydrocarbon recover stream, transferring a part of the mother liquor into a work-up section including an evaporator for producing a wax-depleted portion of the mother liquor and a diluent distillation unit for producing isolated diluent from the wax-depleted portion of the mother liquor, wherein a first part of the hydrocarbon recover stream is transferred to the diluent distillation unit without passing the evaporator for producing the wax-depleted portion of the mother liquor.
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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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公开(公告)号：US09896520B2
公开(公告)日：2018-02-20
申请号：US15305047
申请日：2015-04-28
Applicant: Basell Polyolefine GmbH
Inventor： Reinhard Kuehl , Rodrigo Carvajal , Gerhardus Meier , Elke Damm , Phil Pyman
CPC classification number: C08F10/02 , C08F2400/02 , Y02P20/584 , C08F2/14 , C08F2/001
Abstract: The present disclosure generally relates to a slurry polymerization process for the preparation of polyethylene in the presence of a Ziegler catalyst and aluminum alkyl co-catalyst in at least one polymerization reactor, in which process suspension medium comprising a concentration of aluminum alkyl co-catalyst is recycled to the polymerization, the concentration of aluminum alkyl co-catalyst in the recycled suspension medium is determined; and the amount of fresh aluminum alkyl co-catalyst fed to the polymerization is adjusted to maintain a targeted aluminum alkyl co-catalyst concentration in the recycled suspension medium.
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14.发明授权公开(公告)号：US12221500B2
公开(公告)日：2025-02-11
申请号：US17614684
申请日：2020-05-28
Applicant: Basell Polyolefine GmbH
Inventor： Peter Rohrbach , Jürgen Perzlmeier , Mudit Ashtana , Harald Prang , Elke Damm
IPC: C08F210/16 , C08F2/01 , C08F2/18 , C08F210/08
Abstract: A process for preparing an ethylene polymer in a suspension polymerization including the steps of separating the formed suspension of ethylene polymer particles in a solid-liquid separator into wet ethylene polymer particles and mother liquor, drying the wet ethylene polymer particles by a gas stream and forming a gas stream carrying a hydrocarbon load, and thereafter separating the hydrocarbon load from the gas stream and thereby forming a liquid hydrocarbon recover stream, transferring a part of the mother liquor into a work-up section including an evaporator for producing a wax-depleted portion of the mother liquor and a diluent distillation unit for producing isolated diluent from the wax-depleted portion of the mother liquor, wherein a first part of the hydrocarbon recover stream is transferred to the diluent distillation unit without passing the evaporator for producing the wax-depleted portion of the mother liquor.
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公开(公告)号：US11834531B2
公开(公告)日：2023-12-05
申请号：US17252190
申请日：2019-06-19
Applicant: Basell Polyolefine GmbH
Inventor： Elke Damm , Reinhard Kuehl , Rodrigo Carvajal
IPC: C08F2/01 , C08F2/14 , C08F2/18 , C08F6/24 , C08F210/02 , C08F210/14 , C08F210/16 , C08F2/00 , B01J19/18
CPC classification number: C08F2/01 , C08F2/001 , C08F2/14 , C08F2/18 , C08F6/24 , C08F210/02 , C08F210/14 , C08F210/16 , C08F2500/05
Abstract: A process for preparing a multimodal ethylene copolymer in suspension in a reactor cascade including a first polymerization reactor and subsequent polymerization reactor(s) including polymerizing ethylene and C3-C12-1-alkenes and forming a suspension of multimodal ethylene copolymer particles in a suspension medium made from or containing a diluent, transferring the suspension into a separator, wherein the suspension is separated into multimodal ethylene copolymer particles and recovered suspension medium, purifying part of the recovered suspension medium for producing purified components of the recovered suspension medium, and recycling part of the purified components of the recovered suspension medium to the first polymerization reactor of the reactor cascade, wherein the purified components of the recovered suspension medium recycled to the first polymerization reactor and made from or containing the diluent, undergo catalytic hydrogenation before being introduced into the first polymerization reactor.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20220220233A1
公开(公告)日：2022-07-14
申请号：US17614708
申请日：2020-05-28
Applicant: Basell Polyolefine GmbH
Inventor： Peter Rohrbach , Jürgen Perzlmeier , Elke Damm , Harald Prang
Abstract: A process for preparing an ethylene polymer in a suspension polymerization including the steps of separating the formed suspension of ethylene polymer particles in a solid-liquid separator into wet ethylene polymer particles and mother liquor, transferring a part of the mother liquor into a work-up section including an evaporator for producing a wax-depleted portion of the mother liquor, a diluent distillation unit for producing isolated diluent from the wax-depleted portion of the mother liquor, and a wax removal unit operated by direct steam distillation for producing a gaseous hydrocarbon/steam mixture which is condensed and then separated into an aqueous phase and a hydrocarbon phase, wherein a first part of the hydrocarbon phase is transferred to the diluent distillation unit without passing the evaporator for producing the wax-depleted portion of the mother liquor.
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公开(公告)号：US20210332167A1
公开(公告)日：2021-10-28
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
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：US10920050B2
公开(公告)日：2021-02-16
申请号：US16463288
申请日：2017-10-30
Applicant: BASELL POLYOLEFINE GMBH
Inventor： Diana Doetsch , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Elke Damm , Claudio Fibla
IPC: C08L23/06 , C08F2/00 , C08F4/646 , C08F110/02 , C08F210/02
Abstract: A polyethylene composition for producing blow-molded hollow articles, having the following features: 1) density from 0.948 to 0.952 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) Mz equal to or greater than 1,200,000 g/mol; 5) η0.02 from 35,000 to 55,000 Pa·s; 6) long-chain branching index, LCBI, equal to or greater than 0.55; and 7) ratio (η0.02/1000)/LCBI from 55 to 75.
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公开(公告)号：US10570278B2
公开(公告)日：2020-02-25
申请号：US16463801
申请日：2017-10-30
Applicant: BASELL POLYOLEFINE GMBH
Inventor： Diana Doetsch , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Elke Damm , Claudio Fibla
IPC: C08L23/06 , C08F2/00 , C08F2/34 , C08F4/02 , C08F210/02
Abstract: A polyethylene composition for producing blow-molded hollow articles, having the following features: 1) density from greater than 0.957 to 0.965 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) Mw equal to or greater than 230,000 g/mol; 5) η0.02 from 35,000 to 55,000 Pa·s; 6) long-chain branching index, LCBI, equal to or greater than 0.55; and 7) ratio (η0.02/1000)/LCBI from 55 to 75.
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公开(公告)号：US20170259458A1
公开(公告)日：2017-09-14
申请号：US15532016
申请日：2015-12-03
Applicant: Basell Polyolefine GmbH
Inventor： Peter Kruempel , Elke Damm , Reinhard Kuehl , Phil Pyman
IPC: B29B7/60 , B29B7/48 , B29B7/72 , C08K3/04 , B29C47/10 , B29B7/88 , B29C47/92 , C08J3/22 , B29B7/00 , B29C47/00
CPC classification number: B29B7/728 , B29B7/005 , B29B7/007 , B29B7/38 , B29B7/42 , B29B7/48 , B29B7/603 , B29B7/88 , B29B7/90 , B29B9/06 , B29B9/065 , B29B9/12 , B29C48/022 , B29C48/03 , B29C48/04 , B29C48/286 , B29C48/288 , B29C48/298 , B29C48/92 , B29C2948/92104 , B29C2948/926 , B29C2948/92828 , B29K2023/06 , B29K2023/065 , B29K2105/16 , B29K2507/04 , C08J3/203 , C08J3/22 , C08J2323/06 , C08J2323/08 , C08K3/04 , G05D11/132
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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