Patents Assigned to Basell Polyolefine GmbH
  • Patent number: 9873783
    Abstract: The present disclosure relates to an ethylene polymer composition having an eta (0.01) equal to or higher than 35,000 Pa·s, comprising: A) 25-75% by weight of an ethylene polymer selected from ethylene homopolymers, copolymers of ethylene with 10% or less of one or more olefin comonomers, and mixtures of the homopolymers and copolymers; B) 25-75% by weight of a copolymer of ethylene and propylene comprising 45-70% by weight of ethylene; wherein eta (0.01) is the complex shear viscosity at an angular frequency of 0.01 rad/s, measured with dynamic oscillatory shear in a plate-plate rotational rheometer at a temperature of 200° C., and the amounts of A) and B) refer to the total weight of A)+B).
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: January 23, 2018
    Assignee: Basell Polyolefine GmbH
    Inventors: Claudio Cavalieri, Michele Grazzi, Roberto Pantaleoni
  • Patent number: 9873754
    Abstract: A process for the gas-phase polymerization of ethylene or a mixture of ethylene and one or more 1 olefins in the presence of a polymerization catalyst system comprising the steps a) feeding a solid catalyst component, which was obtained by contacting at least a magnesium compound and a titanium compound, to a continuously operated apparatus and contacting the solid catalyst component with an aluminum alkyl compound at a temperature of from 0° C. to 70° C. in a way that the mean residence time of the solid catalyst component in contact with the aluminum alkyl compound is from 5 to 300 minutes; b) transferring the catalyst component formed in step a) into another continuously operated apparatus and prepolymerizing it with ethylene or a mixture of ethylene and one or more 1 olefins in suspension at a temperature of from 10° C. to 80° forming polymer in an amount of from 0.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: January 23, 2018
    Assignee: Basell Polyolefine GmbH
    Inventors: Gabriele Mei, Pietro Baita, Lorella Marturano, Antonio Mazzucco, Roberta Pica, Gerhardus Meier, Ulf Schueller
  • Publication number: 20180009916
    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.
    Type: Application
    Filed: August 15, 2017
    Publication date: January 11, 2018
    Applicant: Basell Polyolefine GmbH
    Inventors: Shahram Mihan, Gerhardus Meier, Ulf Schueller, Michael Schiendorfer, Jens Wiesecke
  • Publication number: 20170355788
    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 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.
    Type: Application
    Filed: October 27, 2015
    Publication date: December 14, 2017
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: GERD MANNEBACH, BERND LOTHAR MARCZINKE, GERHARDUS MEIER, ULF SCHULLER, IAKOVOS VITTORIAS, HARILAOS MAVRIDIS
  • Publication number: 20170348658
    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.
    Type: Application
    Filed: November 12, 2015
    Publication date: December 7, 2017
    Applicant: Basell Polyolefine GmbH
    Inventors: Dieter Littmann, Georg Groos, Andre-Armand Finette, Michael Deuerling, Sven Wolfram, Juergen Mohrbutter, Danir Khayrullin, Claudio Fibla, Christoph Wolf
  • Publication number: 20170341266
    Abstract: A process for continuously preparing a polyolefin composition made from or containing a polyolefin and carbon black in an extruder device. The process includes the steps of supplying polyolefin in form of a polyolefin powder and carbon black to a mixing device; alternatively, (a) measuring the flow rate of the polyolefin powder supplied to the mixing device or (b) measuring the flow rate of the polyolefin pellets prepared in the extruder device; adjusting the flow rate of the carbon black to the mixing device in response to the measured flow rate of the polyolefin powder or adjusting the flow rate of the polyolefin powder to the mixing device in response to the measured flow rate of the polyolefin pellets; melting and homogenizing the mixture within the extruder device; and pelletizing the polyolefin composition into the polyolefin pellets.
    Type: Application
    Filed: December 3, 2015
    Publication date: November 30, 2017
    Applicant: Basell Polyolefine GmbH
    Inventors: Peter Kruempel, Harald Prang, Reinhard Kuehl, Elke Damm
  • Publication number: 20170335028
    Abstract: The present technology relates to a process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators, wherein the polymerization is carried out in a continuously operated tubular reactor at temperatures from 100° C. to 350° C. and pressures from 180 MPa to 340 MPa, with a specific reactor surface area Asp of 2 m2/(t/h) to 5.5 m2/(t/h), and the tubular reactor has a specific ratio RDsp of 0.0050 MPa?1 to 0.0069 MPa?1 and an inner surface which has a surface roughness Ra of 2 ?m or less.
    Type: Application
    Filed: August 10, 2017
    Publication date: November 23, 2017
    Applicant: Basell Polyolefine GmbH
    Inventors: Dieter Littmann, Jürgen Peter Mohrbutter, Giulia Mei, Andre-Armand Finette, Sven Georg Wolfram, Michael Deuerling, Danir Khayrullin, Georg Groos, Christoph Wolf
  • Publication number: 20170335025
    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.
    Type: Application
    Filed: October 27, 2015
    Publication date: November 23, 2017
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: GERD MANNEBACH, BERND LOTHAR MARCZINKE, GERHARDUS MEIER, ULF SCHULLER, IAKOVOS VITTORIAS, HARILAOS MAVRIDIS
  • Publication number: 20170321076
    Abstract: Polyethylene composition with improved balance of impact resistance at low temperatures and Environmental Stress Cracking Resistance (ESCR), particularly suited for producing protective coatings on metal pipes, said composition having the following features: 1) density from 0.938 to 0.948 g/cm3; 2) ratio MIF/MIP from 15 to 25; 3) MIF from 30 to 45 g/10 min.; 4) Mz equal to or greater than 1000000 g/mol; 5) LCBI equal to or greater than 0.55.
    Type: Application
    Filed: July 26, 2017
    Publication date: November 9, 2017
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: GERHARDUS MEIER, ULF SCHULLER, DIANA DOTSCH, BERND LOTHAR MARCZINKE, HEINZ VOGT
  • Patent number: 9809659
    Abstract: A process for the preparation of polyethylene by polymerizing in a slurry ethylene and optionally one or more C3 to C10 alpha-olefins in a reactor system comprising a polymerization reactor and one or more first heat exchangers located outside the polymerization reactor where the slurry in the polymerization reactor is cooled by withdrawing slurry from the polymerization reactor, cooling the slurry in the one or more first heat exchangers and returning the cooled slurry to the polymerization reactor, wherein the one or more first heat exchangers are cooled by a first coolant having a temperature of 29° C. or higher.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: November 7, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Giuseppe Penzo, Rodrigo Carvajal, Reinhard Kuehl, Elke Damm
  • Patent number: 9790303
    Abstract: A method for controlling a slurry polymerization for the preparation of polyethylene, where the polyethylene is formed in a polymerization reactor comprising a vapor section by contacting a Ziegler-type catalyst, ethylene, and either hydrogen or, as comonomer(s), one or more C3 to C10 alpha-olefins or hydrogen and one or more C3 to C10 alpha-olefins, wherein the ethylene partial pressure is maintained by adjusting the flow rate of the catalyst to the polymerization reactor and the hydrogen/ethylene and comonomer/ethylene partial pressure ratios are maintained by adjusting the flow rates of hydrogen and/or of the one or more comonomers to the polymerization reactor.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: October 17, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Reinhard Kuehl, Rodrigo Carvajal, Gerhardus Meier, Elke Damm, Phil Pyman
  • Patent number: 9771439
    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.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: September 26, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Shahram Mihan, Gerhardus Meier, Ulf Schueller, Michael Schiendorfer, Jens Wiesecke
  • Publication number: 20170259458
    Abstract: A process for continuously preparing a polyolefin composition made from or containing a bimodal or multimodal polyolefin and one or more additives in an extruder device equipped with at least one hopper. The process includes the steps of supplying a bimodal or multimodal polyolefin in form of a polyolefin powder to the hopper; (a) measuring the flow rate of the polyolefin powder or (b) measuring the flow rate of the prepared polyolefin pellets; supplying one or more additives to the hopper; adjusting the flow rates of the additives supplied to the hopper in response to the measured flow rate of the polyolefin powder or adjusting the flow rate of the polyolefin powder in response to the measured flow rate of the polyolefin pellets; melting and homogenizing the polyolefin powder and additives within the extruder device; and pelletizing the molten polyolefin composition into the polyolefin pellets.
    Type: Application
    Filed: December 3, 2015
    Publication date: September 14, 2017
    Applicant: Basell Polyolefine GmbH
    Inventors: Peter Kruempel, Elke Damm, Reinhard Kuehl, Phil Pyman
  • Patent number: 9758603
    Abstract: The present technology relates to a process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators, wherein the polymerization is carried out in a continuously operated tubular reactor at temperatures from 100° C. to 350° C. and pressures from 180 MPa to 340 MPa, with a specific reactor surface area Asp of 2 m2/(t/h) to 5.5 m2/(t/h), and the tubular reactor has a specific ratio RDsp of 0.0050 MPa?1 to 0.0069 MPa?1 and an inner surface which has a surface roughness Ra of 2 ?m or less.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: September 12, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Dieter Littmann, Jürgen Peter Mohrbutter, Giulia Mei, Andre-Armand Finette, Sven Georg Wolfram, Michael Deuerling, Danir Khayrullin, Georg Groos, Christoph Wolf
  • Patent number: 9738777
    Abstract: The present disclosure relates to a polyethylene composition with improved swell ratio and mechanical properties for use in preparing blow-molded articles and having the following features: 1) a density from 0.945 to less than 0.952 g/cm3; 2) an MIF/MIP ratio from 15 to 30; 3) a Shear-Induced Crystallization Index (SIC) from 2.5 to 5.5.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: August 22, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Iakovos Vittorias, Jens Wiesecke, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schüller, Volker Dolle, Johannes-Friedrich Enderle, Dieter Lilge, Barbara Gall
  • Patent number: 9738778
    Abstract: A two steps polymerization process for obtaining a polyolefin composition comprising: a) from 25 wt % to 70 wt % of a propylene homopolymer or a propylene-ethylene copolymer containing from 0.1 wt % to 10 wt % of ethylene derived units; b) from 27 wt % to 70 wt % of a copolymer of ethylene and at least one C3-C20 alpha olefins, wherein the ethylene derived units content ranges from 15 wt % to 70 wt %; c) from 3 wt % to 20 wt % of polyethylene homopolymer or an ethylene and at least one C3-C20 alpha olefins copolymer; the sum a)+b)+c) being 100, wherein said process comprises: step a) contacting under polymerization conditions propylene, optionally ethylene and the catalyst system in order to obtain component a), step b) contacting under polymerization conditions ethylene and at least one C3-C20 alpha-olefins and the catalyst system in order to obtain components b) and c); wherein the catalyst system comprises a metallocene compound and an iron complex.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: August 22, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Fabiana Fantinel, Bodo Richter, Shahram Mihan, Massimo Covezzi, Claudio Cavalieri, Michele Grazzi
  • Patent number: 9738735
    Abstract: The present disclosure relates to a process for the preparation of polyethylene by polymerizing in a slurry ethylene and optionally one or more C3 to C10 alpha-olefins. In some embodiments, the polymerization is carried out in a cylindrical polymerization reactor equipped with an agitator for mixing the contents of the reactor and inducing a flow of the slurry, the ethylene is fed into the reactor by an ethylene injection system comprising one or more injection nozzles which project through the bottom reactor head or through the reactor wall and extend from 0.02-0.5 times the inner diameter D into the reactor, and the ethylene exits the injection nozzle with an exit velocity from 10-200 m/s.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: August 22, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Reinhard Kuehl, Harald Prang, Rodrigo Carvajal, Elke Damm, Phil Pyman
  • Publication number: 20170233505
    Abstract: The present disclosure relates to a process for the preparation of polyethylene by polymerizing in a slurry ethylene and optionally one or more C3 to C10 alpha-olefins. In some embodiments, the polymerization is carried out in a cylindrical polymerization reactor equipped with an agitator for mixing the contents of the reactor and inducing a flow of the slurry, the ethylene is fed into the reactor by an ethylene injection system comprising one or more injection nozzles which project through the bottom reactor head or through the reactor wall and extend from 0.02-0.5 times the inner diameter D into the reactor, and the ethylene exits the injection nozzle with an exit velocity from 10-200 m/s.
    Type: Application
    Filed: August 6, 2015
    Publication date: August 17, 2017
    Applicant: Basell Polyolefine GmbH
    Inventors: Reinhard KUEHL, Harald PRANG, Rodrigo CARVAJAL, Elke DAMM, Phil PYMAN
  • Patent number: 9732248
    Abstract: Polyethylene composition with improved balance of impact resistance at low temperatures and Environmental Stress Cracking Resistance (ESCR), particularly suited for producing protective coatings on metal pipes, said composition having the following features: 1) density from 0.938 to 0.948 g/cm3; 2) ratio MIF/MIP from 15 to 25; 3) MIF from 30 to 45 g/10 min.; 4) Mz equal to or greater than 1000000 g/mol; 5) LCBI equal to or greater than 0.55.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: August 15, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Gerhardus Meier, Ulf Schueller, Diana Dotsch, Bernd Lothar Marczinke, Heinz Vogt
  • Patent number: 9725541
    Abstract: The present technology relates to a polyethylene composition suitable for producing small articles such as flexible and collapsible tubes by blow molding comprising: 1) a density from 0.948 to 0.955 g/cm3; 2) a MIF/MIP ratio from 12 to 25; 3) a MIF from 25 to 40 g/10 min; 4) a Mz from 1000000 to 2000000 g/mol; and 5) a long-chain branching index, LCBI, equal to or greater than 0.55.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: August 8, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Gerhardus Meier, Ulf Schuller, Diana Dotsch, Bernd Lothar Marczinke, Jens Wiesecke