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公开(公告)号：US20140243475A1
公开(公告)日：2014-08-28
申请号：US14191090
申请日：2014-02-26
发明人： Harilaos Mavridis , Gerhardus Meier , Ulf Schueller , Diana Doetsch , Bernd Marczinke , Iakovos Vittorias
CPC分类号： C08L23/06 , C08L23/08 , C08L23/0815 , C08L2205/025 , C08L2308/00 , C08L2314/02 , Y02P20/52 , Y10S526/905 , C08F210/16 , C08F2/001 , C08F110/02 , C08F2500/12 , C08F2500/07 , C08F210/14 , C08F2500/05 , C08F2500/14 , C08F2500/17 , C08F2500/09 , C08F2/34 , C08F10/02 , C08F4/6543 , C08F4/6492
摘要： Embodiments of the present disclosure relate to a method of preparing polyethylene compositions comprising polymerizing ethylene in a first gas-phase reactor and polymerizing ethylene in a second gas-phase reactor in the presence of hydrogen; wherein at least one of the first or second gas-phase reactors comprises a first and second polymerization zone; wherein a hydrogen pressure of the first and second polymerization zones are different such that at least a portion of the second ethylene cycles through the first and second polymerization zones and a gas mixture of each polymerization zone is partially or totally prevented from entering the other zone.
摘要翻译： 本公开的实施方案涉及制备聚乙烯组合物的方法，其包括在第一气相反应器中聚合乙烯并在第二气相反应器中在氢的存在下聚合乙烯; 其中所述第一或第二气相反应器中的至少一个包括第一和第二聚合区; 其中第一和第二聚合区的氢气压力是不同的，使得至少一部分第二乙烯循环通过第一和第二聚合区以及每个聚合区的气体混合物被部分或完全防止进入另一个区。
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公开(公告)号：US11976183B1
公开(公告)日：2024-05-07
申请号：US18083686
申请日：2022-12-19
发明人： Timo Hees , Andreas Maus , Pascal Rebmann , Diana Doetsch , Katharina Elsas , Harilaos Mavridis , Gerhardus Meier
IPC分类号： C08L23/06
CPC分类号： C08L23/06 , C08L2205/025 , C08L2207/04 , C08L2207/066 , C08L2207/20
摘要： 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.
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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
发明人： Andreas Maus , Timo Hees , Pascal Rebmann , Diana Doetsch , Katharina Elsas , Harilaos Mavridis , Gerhardus Meier
IPC分类号： C08L23/06
CPC分类号： C08L23/06 , C08L2203/14 , C08L2203/16 , C08L2205/025 , C08L2207/066
摘要： 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
发明人： Diana Doetsch , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Rainer Sattel , Peter Bisson
摘要： 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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5.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
发明人： Diana Doetsch , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Elke Damm , Claudio Fibla
IPC分类号： C08F210/16 , C08L23/06 , C08L23/08
CPC分类号： C08F210/16 , C08L23/06 , C08L23/0815 , C08L2205/025 , C08L2314/02
摘要： 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：US10570277B2
公开(公告)日：2020-02-25
申请号：US16463790
申请日：2017-10-30
发明人： Diana Doetsch , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Elke Damm , Claudio Fibla
摘要： 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：US11485838B2
公开(公告)日：2022-11-01
申请号：US16954691
申请日：2018-12-12
发明人： Diana Doetsch , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Claudio Fibla , Rainer Sattel , Peter Bisson
IPC分类号： C08F210/16 , C08F2/00 , C08L23/06 , C08F4/02 , C08F4/52
摘要： 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 40; 3) Mz from 500,000 to 3,500,000 g/mol; 4) η0.02 from 80,000 to 300,000 Pa·s; 5) HMWcopo index from 1 to 15; and 6) Mz/Mw*LCBI lower than 6.4.
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公开(公告)号：US11236183B2
公开(公告)日：2022-02-01
申请号：US17053633
申请日：2019-05-14
IPC分类号： C08F10/02 , C08F110/02 , C08F2/00 , C08F210/16
摘要： A polyethylene composition for producing blow-molded hollow articles, having the following features:
1) a density from 0.945 to 0.958 g/cm3, determined according to ISO 1183 at 23° C.;
2) a ratio MIF/MI10 from 2 to 10;
3) a η0.02 from 200,000 to 800,000 Pa·s;
4) a LCBI equal to or lower than 0.80; and
5) a ratio (η0.02/1000)/LCBI equal to or greater than 350.-
公开(公告)号：US09023945B2
公开(公告)日：2015-05-05
申请号：US14191090
申请日：2014-02-26
发明人： Harilaos Mavridis , Gerhardus Meier , Ulf Schueller , Diana Doetsch , Bernd Marczinke , Iakovos Vittorias
CPC分类号： C08L23/06 , C08L23/08 , C08L23/0815 , C08L2205/025 , C08L2308/00 , C08L2314/02 , Y02P20/52 , Y10S526/905 , C08F210/16 , C08F2/001 , C08F110/02 , C08F2500/12 , C08F2500/07 , C08F210/14 , C08F2500/05 , C08F2500/14 , C08F2500/17 , C08F2500/09 , C08F2/34 , C08F10/02 , C08F4/6543 , C08F4/6492
摘要： Embodiments of the present disclosure relate to a method of preparing polyethylene compositions comprising polymerizing ethylene in a first gas-phase reactor and polymerizing ethylene in a second gas-phase reactor in the presence of hydrogen; wherein at least one of the first or second gas-phase reactors comprises a first and second polymerization zone; wherein a hydrogen pressure of the first and second polymerization zones are different such that at least a portion of the second ethylene cycles through the first and second polymerization zones and a gas mixture of each polymerization zone is partially or totally prevented from entering the other zone.
摘要翻译： 本公开的实施方案涉及制备聚乙烯组合物的方法，其包括在第一气相反应器中聚合乙烯并在第二气相反应器中在氢的存在下聚合乙烯; 其中所述第一或第二气相反应器中的至少一个包括第一和第二聚合区; 其中第一和第二聚合区的氢气压力是不同的，使得至少一部分第二乙烯循环通过第一和第二聚合区以及每个聚合区的气体混合物被部分或完全防止进入另一个区。
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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
发明人： Diana Doetsch , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schueller , Elke Damm , Claudio Fibla
IPC分类号： C08L23/06 , C08F2/00 , C08F4/646 , C08F110/02 , C08F210/02
摘要： 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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