Patents by Inventor Ulf Schueller
Ulf Schueller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20190338108Abstract: 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) ?0.02 from 160,000 to 300,000 Pa·s; and 5) long-chain branching index, LCBI, equal to or greater than 0.75.Type: ApplicationFiled: October 30, 2017Publication date: November 7, 2019Applicant: BASELL POLYOLEFINE GMBHInventors: DIANA DOETSCH, BERND LOTHAR MARCZINKE, GERHARDUS MEIER, ULF SCHUELLER, RAINER SATTEL, PETER BISSON
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Patent number: 10457800Abstract: 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.Type: GrantFiled: June 6, 2016Date of Patent: October 29, 2019Assignee: Basell Polyolefine GmbHInventors: Iakovos Vittorias, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schüller, Andreas Maus, Diana Dötsch, Jens Wiesecke, Harilaos Mavridis
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Publication number: 20190322775Abstract: A process for preparing an ethylene polymer including the step of homopolymerizing ethylene or copolymerizing ethylene with one or more comonomers in a gas-phase polymerization reactor including a riser unit wherein growing polymer particles flow upwards under fluidization, fast fluidization or transport conditions and a downcomer wherein growing polymer particles flow downward in a densified form, wherein the hold-up of polymer particles in the downcomer is from 55 wt. % to 80 wt. % of the total hold-up of polymer particles in the gas-phase polymerization reactor.Type: ApplicationFiled: November 9, 2017Publication date: October 24, 2019Applicant: Basell Polyolefine GmbHInventors: Gerhardus Meier, Ulf Schueller, Gabriele Mei, Massimo Covezzi, Pietro Baita, Lorella Marturano
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Publication number: 20190309148Abstract: 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) ?0.02 from 35,000 to 55,000 Pa·s; 6) long-chain branching index, LCBI, equal to or greater than 0.55; and 7) ratio (?0.02/1000)/LCBI from 55 to 75.Type: ApplicationFiled: October 30, 2017Publication date: October 10, 2019Applicant: BASELL POLYOLEFINE GMBHInventors: DIANA DOETSCH, BERND LOTHAR MARCZINKE, GERHARDUS MEIER, ULF SCHUELLER, ELKE DAMM, CLAUDIO FIBLA
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Publication number: 20190309107Abstract: 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.Type: ApplicationFiled: November 9, 2017Publication date: October 10, 2019Applicant: Basell Polyolefine GmbHInventors: Gerhardus Meier, Ulf Schueller
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Publication number: 20190284378Abstract: 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) ?0.02 from 35,000 to 55,000 Pa·s; 6) long-chain branching index, LCBI, equal to or greater than 0.55; and 7) ratio (?0.02/1000)/LCBI from 55 to 75.Type: ApplicationFiled: October 30, 2017Publication date: September 19, 2019Applicant: BASELL POLYOLEFINE GMBHInventors: DIANA DOETSCH, BERND LOTHAR MARCZINKE, GERHARDUS MEIER, ULF SCHUELLER, ELKE DAMM, CLAUDIO FIBLA
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Publication number: 20190276649Abstract: 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) ?0.02 from 30,000 to 55,000 Pa·s; 5) long-chain branching index, LCBI, equal to or greater than 0.55; 6) ratio (?0.02/1000)/LCBI from 55 to 75.Type: ApplicationFiled: October 30, 2017Publication date: September 12, 2019Applicant: BASELL POLYOLEFINE GMBHInventors: DIANA DOETSCH, BERND LOTHAR MARCZINKE, GERHARDUS MEIER, ULF SCHUELLER, ELKE DAMM, CLAUDIO FIBLA
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Patent number: 10358509Abstract: The present disclosure relates to a continuous process for the preparation of ethylene homopolymers or ethylene copolymers comprising polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a chromium catalyst in a gas-phase polymerization reactor which is equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat-exchanger for cooling and feeding the reactor gas back to the reactor, wherein the polymerization is carried out at a temperature from 30° C. to 130° C. and a pressure of from 0.1 to 10 MPa and an aliphatic carboxylic acid ester having from 8 to 24 carbon atoms is added.Type: GrantFiled: March 23, 2016Date of Patent: July 23, 2019Assignee: Basell Polyolefine GmbHInventors: Volker Fraaije, Michael Lynch, Shahram Mihan, Gerhardus Meier, Ulf Schueller
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Patent number: 10259892Abstract: 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.Type: GrantFiled: June 17, 2015Date of Patent: April 16, 2019Assignee: Basell Polyolefine GmbHInventors: Gerhardus Meier, Ulf Schüller, Harilaos Mavridis, Bernd Lothar Marczinke, Diana Dötsch, Jens Wiesecke
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Publication number: 20190055328Abstract: A process for the preparation of an ethylene polymer including the step of polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a Phillips-type chromium catalyst in a gas-phase polymerization reactor containing a reactor bed of particulate polymer, wherein the gas-phase polymerization reactor is equipped with a cycle gas line, wherein the reactor gas returned to the polymerization reactor through the cycle gas line has been condensed in part and the amount of liquid in the returned reactor gas is from 0.5 wt. % to 10 wt. % based upon the total weight of the reactor gas/liquid composition, the polymerization is carried out at from 108° C. to 125° C., and an aluminum alkyl is fed into the polymerization reactor in an amount in the range of from 0.0025 mole to 0.1 mole per ton of dosed ethylene.Type: ApplicationFiled: February 23, 2017Publication date: February 21, 2019Applicant: Basell Polyolefine GmbHInventors: Gerhardus Meier, Ulf Schueller, Claudio Fibla, Shahram Mihan
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Patent number: 10208144Abstract: 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.Type: GrantFiled: August 15, 2017Date of Patent: February 19, 2019Assignee: Basell Polyolefine GmbHInventors: Shahram Mihan, Gerhardus Meier, Ulf Schueller, Michael Schiendorfer, Jens Wiesecke
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Patent number: 10202472Abstract: A process for the preparation of an ethylene polymer including the step of polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a Phillips-type chromium catalyst in a gas-phase polymerization reactor containing a reactor bed of particulate polymer, wherein the gas-phase polymerization reactor is equipped with a cycle gas line, wherein the reactor gas returned to the polymerization reactor through the cycle gas line has been condensed in part and the amount of liquid in the returned reactor gas is from 0.5 wt. % to 10 wt. % based upon the total weight of the reactor gas/liquid composition, the polymerization is carried out at from 108° C. to 125° C., and an aluminum alkyl is fed into the polymerization reactor in an amount in the range of from 0.0025 mole to 0.1 mole per ton of dosed ethylene.Type: GrantFiled: February 23, 2017Date of Patent: February 12, 2019Assignee: Basell Polyolefine GmbHInventors: Gerhardus Meier, Ulf Schueller, Claudio Fibla, Shahram Mihan
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Publication number: 20180362743Abstract: 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.Type: ApplicationFiled: June 6, 2016Publication date: December 20, 2018Applicant: Basell Polyolefine GmbHInventors: Iakovos Vittorias, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schüller, Andreas Maus, Harrilaos Mavridis, Diana Dötsch
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Patent number: 10077322Abstract: The present disclosure provides a gas-phase polymerization process for preparing polyethylene, wherein halogenated alcohols in combination with a Ti based catalyst component and aluminum alkyls as co-catalyst suppress ethane formation or increase polymerization activity.Type: GrantFiled: December 1, 2015Date of Patent: September 18, 2018Assignee: Basell Poliolefine Italia S.r.l.Inventors: Pietro Baita, Tiziano Dall'Occo, Maria Di Diego, Dario Liguori, Lorella Marturano, Andreas Maus, Gabriele Mei, Gerhardus Meier, Giampiero Morini, Roberta Pica, Ulf Schueller
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Publication number: 20180237621Abstract: 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.Type: ApplicationFiled: June 6, 2016Publication date: August 23, 2018Applicant: Basell Polyolefine GmbHInventors: Iakovos Vittorias, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schüller, Andreas Maus, Diana Dötsch, Jens Wiesecke, Harrilaos Mavridis
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Publication number: 20180179367Abstract: A polyethylene composition having the following features: 1) density from about 0.945 to about 0.958 g/cm3, determined according to ISO 1183 at 23° C.; 2) ratio MIF/MIP from about 20 to about 43; 3) MIF from about 4.0 to less than about 8.5 g/10 min.; 4) HMWcopo index from about 3.5 to about 20; and 5) long-chain branching index, LCBI, equal to or lower than about 0.82. The polyethylene composition can be used to produce blown films.Type: ApplicationFiled: June 6, 2016Publication date: June 28, 2018Applicant: Basell Polyolefine GmbHInventors: Iakovos Vittorias, Gerhardus Meier, Ulf Schüller, Andreas Maus, Jens Wiesecke, Harrilaos Mavridis
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Publication number: 20180178180Abstract: A process for starting a multizone circulating reactor containing no polyolefin particles, comprising the steps of conveying gas through the reactor and the gas recycle line, feeding a particulate material comprising a polymerization catalyst and optionally polyolefin into the reactor, controlling the gas flow in a vertical reactor zone equipped with a throttling valve at the bottom so that the upwards gas velocity in the bottom part of this reaction zone is lower than the terminal free-fall velocity of the particulate material fed into the reactor, and, after the weight of the particulate polyolefin in this reactor zone is higher than the drag force of the upward moving gas, controlling the circulation rate of the polymer particles within the multizone circulating reactor by adjusting the opening of the throttling valve and adjusting the flow rate of a dosing gas.Type: ApplicationFiled: December 22, 2017Publication date: June 28, 2018Applicant: Basell Polyolefine GmbHInventors: Gabriele Mei, Massimo Covezzi, Gerhardus Meier, Antonio Mazzucco, Pietro Baita, Ulf Schueller, Lorella Marturano, Enrico Balestra
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Patent number: 9932465Abstract: A process for preparing a polyolefin, including polymerizing olefins in the presence of an antistatic agent made from or containing an alkylene oxide derived polymer made from or containing in average from about 10 to about 200 repeating units —(CH2—CHR—O)— with R being hydrogen or an alkyl group having from 1 to 6 carbon atoms, wherein the alkylene oxide derived polymer is a random copolymer of ethylene oxide and other alkylene oxides and a ratio of n:m is in the range of from 6:1 to 1:1, wherein (n) is the average number of repeating units —(CH2—CH2—O)— derived from ethylene oxide and (m) is the average number of repeating units —(CH2—CHR?—O)— derived from the other alkylene oxides with R? being an alkyl group having from 1 to 6 carbon atoms, and the end groups of the alkylene oxide derived polymer are —OH groups.Type: GrantFiled: March 23, 2016Date of Patent: April 3, 2018Assignee: Basell Polyolefine GmbHInventors: Gerd Mannebach, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schueller, Shahram Mihan, Andreas Maus, Pietro Baita, Maria Di Diego, Lorella Marturano
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Publication number: 20180079842Abstract: The present disclosure relates to a continuous process for the preparation of ethylene homopolymers or ethylene copolymers comprising polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a chromium catalyst in a gas-phase polymerization reactor which is equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat-exchanger for cooling and feeding the reactor gas back to the reactor, wherein the polymerization is carried out at a temperature from 30° C. to 130° C. and a pressure of from 0.1 to 10 MPa and an aliphatic carboxylic acid ester having from 8 to 24 carbon atoms is added.Type: ApplicationFiled: March 23, 2016Publication date: March 22, 2018Applicant: Basell Polyolefine GmbHInventors: Volker Fraaije, Michael Lynch, Shahram Mihan, Gerhardus Meier, Ulf Schueller
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Publication number: 20180072876Abstract: A process for preparing a polyolefin, including polymerizing olefins in the presence of an antistatic agent made from or containing an alkylene oxide derived polymer made from or containing in average from about 10 to about 200 repeating units —(CH2—CHR—O)— with R being hydrogen or an alkyl group having from 1 to 6 carbon atoms, wherein the alkylene oxide derived polymer is a random copolymer of ethylene oxide and other alkylene oxides and a ratio of n:m is in the range of from 6:1 to 1:1, wherein (n) is the average number of repeating units —(CH2—CH2—O)— derived from ethylene oxide and (m) is the average number of repeating units —(CH2—CHR?—O)— derived from the other alkylene oxides with R? being an alkyl group having from 1 to 6 carbon atoms, and the end groups of the alkylene oxide derived polymer are —OH groups.Type: ApplicationFiled: March 23, 2016Publication date: March 15, 2018Applicant: Basell Polyolefine GmbHInventors: Gerd Mannebach, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schueller, Shahram Mihan, Andreas Maus, Pietro Baita, Maria Di Diego, Lorella Marturano