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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
Applicant: Basell Polyolefine GmbH
Inventor： Iakovos Vittorias , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schüller , Andreas Maus , Diana Dötsch , Jens Wiesecke , Harilaos Mavridis
Abstract: 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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62.发明申请公开(公告)号：US20190309107A1
公开(公告)日：2019-10-10
申请号：US16348612
申请日：2017-11-09
Applicant: Basell Polyolefine GmbH
Inventor： Gerhardus Meier , Ulf Schueller
IPC: C08F110/02
Abstract: Process for preparing an olefin polymer including the step of polymerizing an olefin in the presence of a polymerization catalyst and hydrogen as molecular weight regulator in a gas-phase polymerization reactor to yield growing polymer particles, the reactor including three or more polymerization zones and at least two thereof are sub-zones of a polymerization unit wherein the growing polymer particles flow downward in a densified form and at least one polymerization zone has a ratio of hydrogen to the sum of olefins which is a factor of at least 1.5 lower than the ratio of hydrogen to the sum of olefins in the polymerization zone having the highest ratio of hydrogen to the sum of olefins and a factor of at least 1.5 higher than the ratio of hydrogen to the sum of olefins in the polymerization zone having the lowest ratio of hydrogen to the sum of olefins.
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63.发明申请公开(公告)号：US20190284378A1
公开(公告)日：2019-09-19
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 , C08F2/34 , C08F2/00 , 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：US10259892B2
公开(公告)日：2019-04-16
申请号：US15320701
申请日：2015-06-17
Applicant: Basell Polyolefine GmbH
Inventor： Gerhardus Meier , Ulf Schüller , Harilaos Mavridis , Bernd Lothar Marczinke , Diana Dötsch , Jens Wiesecke
Abstract: 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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公开(公告)号：US10208144B2
公开(公告)日：2019-02-19
申请号：US15677814
申请日：2017-08-15
Applicant: Basell Polyolefine GmbH
Inventor： Shahram Mihan , Gerhardus Meier , Ulf Schueller , Michael Schiendorfer , Jens Wiesecke
IPC: C08F2/00 , C08F10/00 , C08F110/02 , C08F10/02 , H01B1/12
Abstract: A process for the preparation of polyolefins by polymerizing olefins at temperatures of from 20 to 200° C. and pressures of from 0.1 to 20 MPa in the presence of a polymerization catalyst and an antistatically acting composition in a polymerization reactor, wherein the antistatically acting composition is a mixture comprising an oil-soluble surfactant and water and the use of an antistatically acting composition comprising an oil-soluble surfactant and water as antistatic agent for the polymerization of olefins at temperatures of from 20 to 200° C. and pressures of from 0.1 to 20 MPa in the presence of a polymerization catalyst.
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Patent Agency Ranking
公开(公告)号：US20180334557A1
公开(公告)日：2018-11-22
申请号：US15778974
申请日：2016-11-08
Applicant: BASELL POLYOLEFINE GmbH
Inventor： CLAUDIO CAVALIERI , MICHELE GRAZZI
CPC classification number: C08L23/0815 , B29C47/0021 , B29C47/0026 , B29C47/02 , B29C47/14 , B29C47/20 , B29C47/92 , B29C2947/92647 , C08F2/001 , C08J5/18 , C08J2323/08 , C08J2423/08 , C08L2205/02 , C08L2205/025 , C08L2205/03 , C08L2308/00 , C08L2314/02 , C08L23/16
Abstract: A polyolefin composition made from or containing: A) from 55 to 75 wt % of a polyethylene having a density of 0.920 to 0.940 g/cm3 and a fraction soluble in xylene (XSA) of less than 10%, based upon the weight of the polyethylene; B) from 25 to 45 wt. % of a copolymer of ethylene with one or more comonomers selected from α-olefins having formula HC2═CHRI, where RI is an alkyl radical, linear or branched, having from 1 to 8 carbon atoms, made from or containing from 50 to 70 wt. %, based upon the weight of the copolymer of ethylene, of ethylene and having a fraction soluble in xylene (XSB) of at least about 50 wt. %, based upon the weight of the copolymer of ethylene; the polyolefin composition having a flexural modulus of less than 260 MPa as measured according to ISO 178. The polyolefin composition is useful for producing geomembranes.
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公开(公告)号：US10113017B2
公开(公告)日：2018-10-30
申请号：US15526977
申请日：2015-10-27
Applicant: BASELL POLYOLEFINE GMBH
Inventor： Gerd Mannebach , Bernd Lothar Marczinke , Gerhardus Meier , Ulf Schuller , Iakovos Vittorias , Harilaos Mavridis
Abstract: 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 10 to less than about 30; 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 the about same molecular weight of 1,000,000 g/mol.
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公开(公告)号：US09908950B2
公开(公告)日：2018-03-06
申请号：US15550256
申请日：2016-02-22
Applicant: Basell Polyolefine GmbH
Inventor： Sven Wolfram , Andre-Armand Finette , Udo Backes , Andrei Gonioukh , Hicran Cabuk
CPC classification number: C08F2/01 , B01J19/0006 , B01J19/2415 , B01J2219/00051 , B01J2219/00065 , B01J2219/00211 , B01J2219/00337 , C08F210/02 , G01L19/0092
Abstract: A process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators, wherein the polymerization is carried out at temperatures from 100° C. to 350° C. and pressures in the range of from 110 MPa to 500 MPa in a continuously operated polymerization reactor which is controlled by a pressure control valve at the outlet of the polymerization reactor, the process comprising continuously monitoring the pressure within the polymerization reactor, feeding a pressure signal to a controller for controlling the control valve and having the controller altering the opening of the pressure control valve to control the pressure within the polymerization reactor, wherein the controller starts an emergency shutdown program when the pressure control valve closes more than a preset threshold value and the pressure within the polymerization reactor decreases below a preset pressure threshold.
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公开(公告)号：US20180030160A1
公开(公告)日：2018-02-01
申请号：US15550256
申请日：2016-02-22
Applicant: Basell Polyolefine GmbH
Inventor： Sven Wolfram , Andre-Armand Finette , Udo Backes , Andrei Gonioukh , Hicran Cabuk
IPC: C08F2/01 , G01L19/00 , B01J19/00 , C08F210/02 , B01J19/24
CPC classification number: C08F2/01 , B01J19/0006 , B01J19/2415 , B01J2219/00051 , B01J2219/00065 , B01J2219/00211 , B01J2219/00337 , C08F210/02 , G01L19/0092
Abstract: A process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators, wherein the polymerization is carried out at temperatures from 100° C. to 350° C. and pressures in the range of from 110 MPa to 500 MPa in a continuously operated polymerization reactor which is controlled by a pressure control valve at the outlet of the polymerization reactor, the process comprising continuously monitoring the pressure within the polymerization reactor, feeding a pressure signal to a controller for controlling the control valve and having the controller altering the opening of the pressure control valve to control the pressure within the polymerization reactor, wherein the controller starts an emergency shutdown program when the pressure control valve closes more than a preset threshold value and the pressure within the polymerization reactor decreases below a preset pressure threshold.
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公开(公告)号：US20170348658A1
公开(公告)日：2017-12-07
申请号：US15523909
申请日：2015-11-12
Applicant: Basell Polyolefine GmbH
Inventor： Dieter Littmann , Georg Groos , Andre-Armand Finette , Michael Deuerling , Sven Wolfram , Juergen Mohrbutter , Danir Khayrullin , Claudio Fibla , Christoph Wolf
CPC classification number: B01J4/002 , B01J2219/185 , B01J2219/1943 , B01J2219/1946 , C08F2/004 , C08F2/01 , C08F6/001 , C08J11/02 , Y02P20/582
Abstract: A process for separating polymeric and gaseous components of a polymer-monomer mixture at a pressure of from 0.12 MPa to 0.6 MPa and a temperature of from 120° C. to 300° C. in a separation vessel is provided. The separation vessel has a vertically arranged cylindrical shape with a ratio of length to diameter L/D of from 0.6 to 10 and an inlet pipe capable of introducing the polymer-monomer mixture into the separation vessel which the inlet pipe extends vertically from the top of the separation vessel into the separation vessel. Further a process for preparing ethylene homopolymers or copolymers from ethylenically unsaturated monomers in the presence of free-radical polymerization initiators at temperatures from 100° C. to 350° C. and pressures in the range of from 110 MPa to 500 MPa comprising such a process for separating a polymer-monomer mixture is provided.
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