Patents Assigned to Basell Polyolefine GmbH
  • Publication number: 20190201865
    Abstract: The present disclosure relates to a manufacturing plant for high-pressure polymerization having a layered tubular reactor and a method for an emergency shutdown in said manufacturing plant. The present disclosure also relates to a process for manufacturing LDPE using said layered tubular reactor.
    Type: Application
    Filed: September 27, 2018
    Publication date: July 4, 2019
    Applicant: Basell Polyolefine GmbH
    Inventors: Dieter Littmann, Andre-Armand Finette, Christoph Wolf, Michael Deuerling, Juergen Peter Mohrbutter, Danir Khayrullin
  • Publication number: 20190177447
    Abstract: A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor, wherein at least one of a pre-heater or pre-cooler, a polymerization reactor or a post reactor cooler is composed of tubes of a length from 5 m to 25 m which are flanged together, either directly or via bends, and the flanges are covered by a chimney construction, and wherein air is conveyed through the chimney construction and the air exiting the chimney construction is monitored with respect to the hydrocarbons concentration.
    Type: Application
    Filed: May 9, 2017
    Publication date: June 13, 2019
    Applicant: Basell Polyolefine GmbH
    Inventors: Andrei Gonioukh, Thomas Herrmann, Dieter Littmann, Andre-Armand Finette, Sven Wolfram
  • Publication number: 20190177446
    Abstract: A process for the preparation of pre-activated or pre-polymerized catalysts made from or containing a solid catalyst component made from or containing Ti, Mg, and halogen is disclosed. The resulting catalyst is protected from the release of flammable gases in contact with water. The process includes the steps of (a) a reaction step for yielding a catalyst precursor; (b) a reaction step in which the catalyst precursor is reacted with an organoaluminum compound for yielding a modified-catalyst precursor; (c) a treatment step in which the modified-catalyst precursor is treated with a mono or polychlorinated compound, thereby yielding the solid catalyst component; and (d) isolating and recovering the solid catalyst component.
    Type: Application
    Filed: February 10, 2017
    Publication date: June 13, 2019
    Applicant: BASELL POLYOLEFINE GMBH
    Inventor: MARTIN SCHNEIDER
  • Publication number: 20190169318
    Abstract: A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor which is installed within a protective enclosure, wherein the production line is monitored with respect to an occurrence of a leakage of monomers or of reaction mixture and a water based deluge system, which provides droplets of a diameter in a range from 25 ?m to 20 mm to the enclosed area, is automatically started with a minimum flow rate of 10 L/min per m2 of enclosed area when a leakage of monomers or of reaction mixture is detected.
    Type: Application
    Filed: May 9, 2017
    Publication date: June 6, 2019
    Applicant: Basell Polyolefine GmbH
    Inventors: Andrei Gonioukh, Thomas Herrmann, Dieter Littmann, Andre-Armand Finette, Siegfried Mischok
  • Patent number: 10308738
    Abstract: The present disclosure relates to a plant for performing polymerization, such as the polymerization of ethylene, having a recycle connection with two or more cooling channels arranged in parallel, a process for polymerization and downstream processes, and a plant for polymerization, comprising the following plant components in fluid communication: a) A reactor with an inlet side and an outlet side; b) A recycle connection positioned in fluid communication between the outlet side of the reactor and the inlet side of the reactor; wherein the recycle connection comprises two or more cooling channels arranged in parallel.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: June 4, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Christoph Wolf, Andre-Armand Finette, Andrei Gonioukh, Dieter Littmann, Thomas Herrmann, Georg Groos
  • Patent number: 10308731
    Abstract: A method for feeding an antistatic compound to a polymerization reactor comprising the steps of: a) dispersing, under mixing conditions, a catalyst powder and an antistatic compound in an oil, so as to form a suspension of catalyst powder and antistatic compound in said oil; b) successively adding, under mixing conditions, a molten thickening agent to said suspension from step a), while maintaining said suspension at a temperature such that said thickening agent solidifies on contact with said suspension; c) transferring the product obtained from b) to a polymerization reactor.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: June 4, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Pietro Baita, Paolo Ferrari, Ines Mingozzi, Lorella Pedriali, Maria Di Diego, Roberta Pica
  • Publication number: 20190135950
    Abstract: A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor, wherein the process comprises monitoring the surrounding of the production line with respect to an occurrence of a leakage of monomers or of reaction mixture by an IR point detector arrangement of at least three groups of IR point detectors which are capable of detecting hydrocarbons and the groups of IR point detectors are operating according to a voting logic and starting automatically an emergency pressure release program when a group of IR point detectors of the IR point detector arrangement detects the presence of hydrocarbons.
    Type: Application
    Filed: May 9, 2017
    Publication date: May 9, 2019
    Applicant: Basell Polyolefine GmbH
    Inventors: Andrei Gonioukh, Thomas Herrmann, Dieter Littmann, Andre-Armand Finette, Sven Wolfram
  • Patent number: 10259892
    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.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 16, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Gerhardus Meier, Ulf Schüller, Harilaos Mavridis, Bernd Lothar Marczinke, Diana Dötsch, Jens Wiesecke
  • Patent number: 10253113
    Abstract: Method for activation of chromium containing catalyst precursor for polymerization and improved polymerization catalyst resulting The instant invention relates to an activation of a polymerization catalyst precursor by heat treatment comprising a support material and a catalyst precursor deposited thereon in a fluidized bed activator and to the use of the activated polymerization catalyst in the manufacture of polyolefins. The Method is performed in a cylindrical activator (1) arranged vertically comprising tubular activator walls, a fluidization gas inlet (2) near the bottom, a fluidization gas outlet (3) near the top and a heat exchange jacket (4) outside the tubular activator walls, wherein the heating jacket covers the complete outer surface of the walls of the activator. The catalyst prepared by that method is improved with respect to its minor content of impurities and causes less interruptions during gas-phase polymerization or slurry polymerization either in stirred vessel or loop.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: April 9, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Paulus De Lange, Manfred Hecker
  • Publication number: 20190055328
    Abstract: 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: Application
    Filed: February 23, 2017
    Publication date: February 21, 2019
    Applicant: Basell Polyolefine GmbH
    Inventors: Gerhardus Meier, Ulf Schueller, Claudio Fibla, Shahram Mihan
  • Patent number: 10208144
    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: August 15, 2017
    Date of Patent: February 19, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Shahram Mihan, Gerhardus Meier, Ulf Schueller, Michael Schiendorfer, Jens Wiesecke
  • Patent number: 10202472
    Abstract: 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: Grant
    Filed: February 23, 2017
    Date of Patent: February 12, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Gerhardus Meier, Ulf Schueller, Claudio Fibla, Shahram Mihan
  • Patent number: 10174186
    Abstract: The invention relates to a polyethylene molding composition having a multimodal molar mass distribution particularly suitable for blow molding films having a thickness in the range from 8 to 200 ?m. The molding composition has a density at a temperature of 23° C. in the range from 0.953 to 0.960 g/cm3 and an MFR190/5 of the final product after extrusion in the range from 0.10 to 0.50 dg/min. The composition comprises from 30 to 60% by weight of a first ethylene polymer fraction made of a homopolymer A having a first molecular weight, from 22 to 40% by weight of a second ethylene polymer fraction made of a further homopolymer or first copolymer B of ethylene and at least one first comonomer from the group of olefins having from 4 to 8 carbon atoms, the first copolymer B having a second molecular weight higher than the first molecular weight, and from 10 to 30% by weight of a third ethylene polymer fraction made of a second copolymer C having a third molecular weight higher than the second molecular weight.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: January 8, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Joachim Berthold, Lutz-Gerd Heinicke, Gerhardus Meier
  • Publication number: 20180371219
    Abstract: A blown film made from or containing a polyolefin composition (I) made from or containing: A) from about 40 to about 75 wt. %, based upon the total weight of the polyolefin composition, of a polyethylene having a density of about 0.920 to about 0.940 g/cm3 and a fraction soluble in xylene (XSA) of less than about 10% wt. %; and B) from about 25 to about 60 wt. %, based upon the total weight of the polyolefin composition, of a copolymer of ethylene with one or more comonomers selected from ?-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 about 50 to about 70 wt. % of ethylene and having a fraction soluble in xylene (XSB) of at least 50 wt. %.
    Type: Application
    Filed: November 8, 2016
    Publication date: December 27, 2018
    Applicant: BASELL POLYOLEFINE GmbH
    Inventors: MICHELE GRAZZI, CLAUDIO CAVALIERI
  • Patent number: 10160848
    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 ?-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.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: December 25, 2018
    Assignee: Basell Polyolefine GmbH
    Inventors: Claudio Cavalieri, Michele Grazzi
  • Publication number: 20180362743
    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: Application
    Filed: June 6, 2016
    Publication date: December 20, 2018
    Applicant: Basell Polyolefine GmbH
    Inventors: Iakovos Vittorias, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schüller, Andreas Maus, Harrilaos Mavridis, Diana Dötsch
  • Publication number: 20180334557
    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 ?-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.
    Type: Application
    Filed: November 8, 2016
    Publication date: November 22, 2018
    Applicant: BASELL POLYOLEFINE GmbH
    Inventors: CLAUDIO CAVALIERI, MICHELE GRAZZI
  • Patent number: 10131719
    Abstract: Process for preparing a polyolefin polymer comprising the steps of a) forming a particulate polyolefin polymer by polymerizing one or more olefins in the presence of a polymerization catalyst system in a polymerization reactor; b) discharging the formed polyolefin particles from the polymerization reactor; c) degassing the polyolefin particles by a process comprising at least a final step of contacting the polyolefin particles with a nitrogen stream in a degassing vessel; and d) transferring the polyolefin particles from the vessel, in which the contacting of the polyolefin particles with the nitrogen stream is carried out, to a melt mixing device, in which the polyolefin particles are melted, mixed and thereafter pelletized, without passing the particles through a buffering device, wherein the degassing vessel is only partly filled with polyolefin particles and the empty volume within the degassing vessel is sufficient to take up additional polyolefin particles for at least 3 hours if the transfer of pol
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: November 20, 2018
    Assignee: Basell Polyolefine GmbH
    Inventors: Giuseppe Penzo, Giulia Mei, Gabriele Mei, Antonio De Lucia, Pietro Baita
  • Patent number: 10113017
    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: Grant
    Filed: October 27, 2015
    Date of Patent: October 30, 2018
    Assignee: Basell Polyolefine GmbH
    Inventors: Gerd Mannebach, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schuller, Iakovos Vittorias, Harilaos Mavridis
  • Patent number: 10087317
    Abstract: Ethylene polymer composition having a fusion enthalpy ?Hfus, measured by Differential Scanning Calorimetry with a heating rate of 20° C. per minute, of 60 J/g or more, comprising, all percent amounts being by weight: A) 25-55% of an ethylene polymer containing 10% or less, referred to the weight of A), of a fraction XSA soluble in xylene at 25° C.; B) 45-75% of a copolymer of ethylene and propylene containing from 45% to 70%, of ethylene and 60% or more of a fraction XSB soluble in xylene at 25° C., both the ethylene of the copolymer and XSB amounts being referred to the weight of B); wherein the amounts of A) and B) are referred to the total weight of A)+B).
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: October 2, 2018
    Assignee: Basell Polyolefine GmbH
    Inventors: Claudio Cavalieri, Michele Grazzi, Roberto Pantaleoni