Patents by Inventor Gerhardus Meier

Gerhardus Meier 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).

  • Patent number: 11485838
    Abstract: 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) ?0.02 from 80,000 to 300,000 Pa·s; 5) HMWcopo index from 1 to 15; and 6) Mz/Mw*LCBI lower than 6.4.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: November 1, 2022
    Assignee: Basell Polyolefine GmbH
    Inventors: Diana Doetsch, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schueller, Claudio Fibla, Rainer Sattel, Peter Bisson
  • Patent number: 11479660
    Abstract: 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: Grant
    Filed: October 30, 2017
    Date of Patent: October 25, 2022
    Assignee: Basell Polyolefine GmbH
    Inventors: Diana Doetsch, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schueller, Rainer Sattel, Peter Bisson
  • Patent number: 11236183
    Abstract: 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 ?0.02 from 200,000 to 800,000 Pa·s; 4) a LCBI equal to or lower than 0.80; and 5) a ratio (?0.02/1000)/LCBI equal to or greater than 350.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: February 1, 2022
    Assignee: Basell Polyolefine GmbH
    Inventors: Diana Doetsch, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schueller, Claudio Fibla
  • Publication number: 20210332167
    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.
    Type: Application
    Filed: December 16, 2019
    Publication date: October 28, 2021
    Applicant: Basell Polyolefine GmbH
    Inventors: Giuseppe Penzo, Gerhardus Meier, Ulf Schueller, Pietro Baita, Giulia Mei, Elke Damm
  • Publication number: 20210284828
    Abstract: 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) ?0.02 of equal to or less than 150000.
    Type: Application
    Filed: September 4, 2019
    Publication date: September 16, 2021
    Inventors: Gerhardus MEIER, Ulf SCHUELLER, Andreas MAUS, Harilaos MAVRIDIS
  • Publication number: 20210238320
    Abstract: 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 ?0.02 from 200,000 to 800,000 Pa·s; 4) a LCBI equal to or lower than 0.80; and 5) a ratio (?0.02/1000)/LCBI equal to or greater than 350.
    Type: Application
    Filed: May 14, 2019
    Publication date: August 5, 2021
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: DIANA DOETSCH, BERND LOTHAR MARCZINKE, GERHARDUS MEIER, ULF SCHUELLER, CLAUDIO FIBLA
  • Patent number: 11078307
    Abstract: A gas-phase polymerization reactor for the gas-phase polymerization of olefins including a polymerization zone having a recycle line for (a) withdrawing reaction gas from the reactor, (b) leading the reaction gas through a heat-exchanger for cooling, and (c) feeding the reaction gas back to the reactor, wherein the recycle line has the heat-exchanger, a centrifugal compressor having variable guide vanes, and a butterfly valve, and a related process for preparing an olefin polymer in the gas-phase polymerization reactor.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: August 3, 2021
    Assignee: Basell Polyolefine GmbH
    Inventors: Pietro Baita, Maurizio Dorini, Giulia Mei, Gerhardus Meier, Giuseppe Penzo, Riccardo Rinaldi
  • Publication number: 20210214472
    Abstract: A gas-phase polymerization reactor for the gas-phase polymerization of olefins including a polymerization zone having a recycle line for (a) withdrawing reaction gas from the reactor, (b) leading the reaction gas through a heat-exchanger for cooling, and (c) feeding the reaction gas back to the reactor, wherein the recycle line has the heat-exchanger, a centrifugal compressor having variable guide vanes, and a butterfly valve, and a related process for preparing an olefin polymer in the gas-phase polymerization reactor.
    Type: Application
    Filed: February 4, 2019
    Publication date: July 15, 2021
    Applicant: Basell Polyolefine GmbH
    Inventors: Pietro Baita, Maurizio Dorini, Giulia Mei, Gerhardus Meier, Giuseppe Penzo, Riccardo Rinaldi
  • Patent number: 10968293
    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.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: April 6, 2021
    Assignee: Basell Polyolefine GmbH
    Inventors: Gerhardus Meier, Ulf Schueller
  • Patent number: 10968291
    Abstract: 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: Grant
    Filed: November 9, 2017
    Date of Patent: April 6, 2021
    Assignee: Basell Polyolefine GmbH
    Inventors: Gerhardus Meier, Ulf Schueller, Gabriele Mei, Massimo Covezzi, Pietro Baita, Lorella Marturano
  • Patent number: 10920050
    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) ?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: Grant
    Filed: October 30, 2017
    Date of Patent: February 16, 2021
    Assignee: Basell Polyolefine GmbH
    Inventors: Diana Doetsch, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schueller, Elke Damm, Claudio Fibla
  • Publication number: 20200354552
    Abstract: 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) ?0.02 from 80,000 to 300,000 Pa·s; 5) HMWcopo index from 1 to 15; and 6) Mz/Mw*LCBI lower than 6.4.
    Type: Application
    Filed: December 12, 2018
    Publication date: November 12, 2020
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: DIANA DOETSCH, BERND LOTHAR MARCZINKE, GERHARDUS MEIER, ULF SCHUELLER, CLAUDIO FIBLA, RAINER SATTEL, PETER BISSON
  • Publication number: 20200190267
    Abstract: A process for preparing a polyolefin composition including the steps of supplying a bimodal or multimodal polyolefin in form of a polyolefin powder having an mass-median-diameter D50 in the range from 300 ?m to 2500 ?m and one or more additives to a mixing device, mixing the polyolefin powder and the additives at a temperature from 10° C. to 120° C., transferring the mixture into a extruder device, melting and homogenizing the mixture within the extruder device to form a molten polyolefin composition, and pelletizing the molten polyolefin composition.
    Type: Application
    Filed: August 30, 2018
    Publication date: June 18, 2020
    Applicant: Basell Polyolefine GmbH
    Inventors: Decio Malucelli, Marco Consalvi, Gerhardus Meier, Ulf Schueller
  • Patent number: 10619035
    Abstract: A polyethylene composition having the following features: 1) density from 0.945 to 0.958 g/cm3, determined according to ISO 1183 at 23° C.; 2) ratio MIF/MIP from 20 to 43; 3) MIF from 4.0 to less than 8.5 g/10 min.; 4) HMWcopo index from 3.5 to 20; and 5) long-chain branching index, LCBI, equal to or lower than 0.82. The polyethylene composition can be used to produce blown films.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: April 14, 2020
    Assignee: Basell Polyolefine GmbH
    Inventors: Iakovos Vittorias, Gerhardus Meier, Ulf Schüller, Andreas Maus, Jens Wiesecke, Harilaos Mavridis
  • Patent number: 10577490
    Abstract: 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: Grant
    Filed: June 6, 2016
    Date of Patent: March 3, 2020
    Assignee: Basell Polyolefine GmbH
    Inventors: Iakovos Vittorias, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schüller, Andreas Maus, Harilaos Mavridis, Diana Dötsch
  • Patent number: 10570278
    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) ?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: Grant
    Filed: October 30, 2017
    Date of Patent: February 25, 2020
    Assignee: Basell Polyolefine GmbH
    Inventors: Diana Doetsch, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schueller, Elke Damm, Claudio Fibla
  • Patent number: 10570277
    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) ?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: Grant
    Filed: October 30, 2017
    Date of Patent: February 25, 2020
    Assignee: Basell Polyolefine GmbH
    Inventors: Diana Doetsch, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schueller, Elke Damm, Claudio Fibla
  • Patent number: 10471407
    Abstract: 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: Grant
    Filed: December 22, 2017
    Date of Patent: November 12, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Gabriele Mei, Massimo Covezzi, Gerhardus Meier, Antonio Mazzucco, Pietro Baita, Ulf Schueller, Lorella Marturano, Enrico Balestra
  • Publication number: 20190338108
    Abstract: 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: Application
    Filed: October 30, 2017
    Publication date: November 7, 2019
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: DIANA DOETSCH, BERND LOTHAR MARCZINKE, GERHARDUS MEIER, ULF SCHUELLER, RAINER SATTEL, PETER BISSON
  • Patent number: 10457800
    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.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: October 29, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Iakovos Vittorias, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schüller, Andreas Maus, Diana Dötsch, Jens Wiesecke, Harilaos Mavridis