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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：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：US20240093010A1
公开(公告)日：2024-03-21
申请号：US17945336
申请日：2022-09-15
发明人： Ulf Schueller , Sebastian Wilhelm , Harald Schmitz , Andreas Maus , Bernd Lothar Marczinke , Elke Damm , Gerhardus Meier , Eric D. Day , Sameer D. Mehta , Harilaos Mavridis
IPC分类号： C08L23/08
CPC分类号： C08L23/0815
摘要： 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
发明人： Ulf Schueller , Sebastian Wilhelm , Harald Schmitz , Andreas Maus , Bernd Lothar Marczinke , Elke Damm , Gerhardus Meier , Eric D. Day , Sameer D. Mehta , Harilaos Mavridis
IPC分类号： C08L23/06 , C08F110/02 , C08K5/14
CPC分类号： C08L23/06 , C08F110/02 , C08K5/14 , C08F2800/10 , C08L2207/062
摘要： 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.-
公开(公告)号：US11845854B2
公开(公告)日：2023-12-19
申请号：US17275874
申请日：2019-09-04
IPC分类号： C08F210/16 , C08F2/00 , C08L23/06 , C08J5/18 , C08L23/08
CPC分类号： C08L23/06 , C08F210/16 , C08J5/18 , C08L23/0815 , C08F2/001 , C08J2323/06 , C08J2323/08 , C08J2423/06 , C08J2423/08
摘要： A polyethylene composition for producing blown films, made from or containing an ethylene homopolymer or copolymer A) and an ethylene copolymer B) having a MIE value lower than the MIE value of A), the composition having the following features:
1) density from 0.948 to 0.960 g/cm3;
2) ratio MIF/MIP from 20 to 40;
3) MIF from 6 to less than 15 g/10 min.;
4) HMWcopo index from 0.5 to 3.5;
5) long-chain branching index, LCBI, equal to or lower than 0.82;
6) η0.02 of equal to or less than 150000.-
公开(公告)号：US09879099B2
公开(公告)日：2018-01-30
申请号：US15527158
申请日：2015-10-27
发明人： Gerd Mannebach , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schuller , Iakovos Vittorias , Harilaos Mavridis
CPC分类号： C08F10/02 , B01D71/26 , C08L23/0815 , C08L2205/025 , C08L2308/00 , C08L2314/02 , C08F210/16 , C08F210/14 , C08F2500/12 , C08F2500/13 , C08F2500/09 , C08F2500/04 , C08F4/6492 , C08F4/6543 , C08F2/001
摘要： 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 30 to about 55; 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 about the same molecular weight of 1,000,000 g/mol.
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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：US10577490B2
公开(公告)日：2020-03-03
申请号：US15739893
申请日：2016-06-06
发明人： Iakovos Vittorias , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schüller , Andreas Maus , Harilaos Mavridis , Diana Dötsch
IPC分类号： C08L23/06 , C08F210/02 , C08F210/14 , C08F10/02 , C08F2/34 , C08F4/654 , C08F4/659 , B32B27/32 , B32B27/08 , F16L9/12
摘要： A polyethylene composition having the following features: 1) density from about 0.945 to about 0.955 g/cm3, determined according to ISO 1183 at 23° C.; 2) ratio MIF/MIP from about 23 to about 40; 3) MIF from about 8.5 to about 18 g/10 min.; 4) HMWcopo index from about 3.5 to about 20; and 5) long-chain branching index, LCBI, equal to or greater than about 0.45. The polyethylene composition can be used to produce pipes and films.
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公开(公告)号：US10457800B2
公开(公告)日：2019-10-29
申请号：US15739826
申请日：2016-06-06
发明人： Iakovos Vittorias , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schüller , Andreas Maus , Diana Dötsch , Jens Wiesecke , Harilaos Mavridis
摘要： A polyethylene composition having the following features: 1) density from about 0.945 to about 0.951 g/cm3, determined according to ISO 1183 at 23° C.; 2) ratio MIF/MIP from about 25 to about 43; 3) MIF from about 3.5 to less than about 8.5 g/10 min.; 4) HMWcopo index from about 1 to about 40; and 5) long-chain branching index, LCBI, equal to or greater than about 0.83. The polyethylene composition can be used to produce pipes.
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公开(公告)号：US10259892B2
公开(公告)日：2019-04-16
申请号：US15320701
申请日：2015-06-17
发明人： Gerhardus Meier , Ulf Schüller , Harilaos Mavridis , Bernd Lothar Marczinke , Diana Dötsch , Jens Wiesecke
摘要： 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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