Patents by Inventor Markus Schopf

Markus Schopf 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).

  • Gas-phase process for the polymerization of alpha-olefins
    Patent number: 8084557
    Abstract: A continuous gas-phase process for the polymerization of alpha-olefins, in particular ethylene, comprising passing an alpha-olefin monomer stream through an oil filter in order to reduce the amount of oil to less than 8 ppm, and polymerizing the thus purified monomer feed in gas-phase reactor; the reduction of the amount of oil improves the operability of the plant over time.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: December 27, 2011
    Assignee: Basell Polyolefine GmbH
    Inventors: Manfred Hecker, Markus Schopf, Axel Hamann, Paulus-Petrus Maria de Lange
  • GAS-PHASE PROCESS FOR THE POLYMERIZATION OF ALPHA-OLEFINS
    Publication number: 20100331502
    Abstract: A continuous gas-phase process for the polymerization of alpha-olefins, in particular ethylene, comprising passing an alpha-olefin monomer stream through an oil filter in order to reduce the amount of oil to less than 8 ppm, and polymerizing the thus purified monomer feed in gas-phase reactor; the reduction of the amount of oil improves the operability of the plant over time.
    Type: Application
    Filed: December 18, 2008
    Publication date: December 30, 2010
    Applicant: Basell Polyolefine GmbH
    Inventors: Manfred Hecker, Markus Schopf, Axel Hamann, Paulus-Petrus Maria De Lange
  • Transition metal compound, ligand system, catalyst system and process for preparing polyolefins
    Patent number: 7723450
    Abstract: The present invention relates to organometallic transition metal compounds of the formula (I) Z1AnZ2MXm??(I) where Z1 is a coordinating group which comprises a six-?-electron central group which coordinates directly to M, A is a divalent bridge between the groups Z1 and Z2, Z2 is a coordinating group having the same meaning as Z1 or is a group comprising an open pentadienyl, a cyclopentadienyl-containing group or a heterocyclic, 5- or 6-membered group containing six ? electrons, n=zero or 1, M is an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements, the radicals X are identical or different and are each an organic or inorganic radical, m is 0, 1 or 2, and at least one of the three molecule fragments Z1, Z2 and A bears a monovalent organic radical.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: May 25, 2010
    Assignee: Basell Polyolefine GmbH
    Inventors: Robert L. Jones, Michael J. Elder, Jennifer Kipke, Alexander Koeppl, Markus Schopf, John Ewen
  • Transition Metal Compound, Ligand System, Catalyst System and Process for Preparing Polyolefins
    Publication number: 20070260023
    Abstract: The present invention relates to organometallic transition metal compounds of the formula (I) Z1AnZ2MXm??(I) where Z1 is a coordinating group which comprises a six-?-electron central group which coordinates directly to M, A is a divalent bridge between the groups Z1 and Z2, Z2 is a coordinating group having the same meaning as Z1 or is a group comprising an open pentadienyl, a cyclopentadienyl-containing group or a heterocyclic, 5- or 6-membered group containing six ? electrons, n=zero or 1, M is an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements, the radicals X are identical or different and are each an organic or inorganic radical, m is 0, 1 or 2, and at least one of the three molecule fragments Z1, Z2 and A bears a monovalent organic radical.
    Type: Application
    Filed: June 2, 2005
    Publication date: November 8, 2007
    Applicant: Basell Polyolefine GmbH
    Inventors: Robert Jones, Michael Elder, Jennifer Kipke, Alexander Koeppl, Markus Schopf, John Ewen
  • Catalytic solid supported on calcined hydrotalcite for olefinic polymerisation
    Patent number: 7094724
    Abstract: Catalyst solid for olefin polymerization comprising A) at least one calcined hydrotalcite and B) at least one organic transition metal compound, and also a catalyst system comprising the catalyst solid, the use of the catalyst solid for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst solid.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: August 22, 2006
    Assignee: Bassell Polyelefine GmbH
    Inventors: Volker Fraaije, Markus Oberhoff, Nicola (Hüsgen) Paczkowski, Markus Schopf, Wolfgang Bidell, Joachim Wulff-Döring, Shahram Mihan
  • Imidochromium compounds in catalyst systems for olefin polymerization
    Patent number: 7045644
    Abstract: The present invention relates to catalyst system containing at least one imidochrome compound and at least one activation compound. This invention also relates to imidochrome compounds, to a method for olefin polymerization and to methods for producing said imidochrome compounds.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: May 16, 2006
    Assignee: Basell Polyolefine GmbH
    Inventors: Markus Schopf, Joerg Sundermeyer, Jennifer Kiepke, Konstantin A. Rufanov, Walter Heitz, Uwe Peucker
  • Catalyst system for carrying out olefin polymerization comprising a calcined hydro-talcite serving as a supporting material
    Patent number: 6924248
    Abstract: Catalyst system for olefin polymerization comprising A) at least one calcined hydrotalcite, B) at least one organic transition metal compound, C) optionally one or more cation-forming compounds and D) at least one organic magnesium compound.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: August 2, 2005
    Assignee: Basell Polyolefine GmbH
    Inventors: Shahram Mihan, Markus Schopf, Joachim Wulff-Döring, Wolfgang Bidell, Volker Fraaije, Nicola Paczkowski, Markus Oberhoff
  • Imidochromium compounds in catalyst systems for olefin polymerization
    Publication number: 20040214970
    Abstract: The present invention relates to catalyst system containing at least one imidochrome compound and at least one activation compound. This invention also relates to imidochrome compounds, to a method for olefin polymerization and to methods for producing said imidochrome compounds.
    Type: Application
    Filed: April 22, 2004
    Publication date: October 28, 2004
    Inventors: Markus Schopf, Joerg Sundermeyer, Jennifer Kipke, Konstantin A. Rufanov, Walter Heitz, Uwe Peucker
  • Imidochromium compounds contained in catalyst systems for olefin polymerization
    Patent number: 6784261
    Abstract: The present invention relates to catalyst system containing at least one imidochrome compound and at least one activation compound. This invention also relates to imidochrome compounds, to a method for olefin polymerization and to methods for producing said imidochrome compounds.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: August 31, 2004
    Assignee: Basell Polyolefine GmbH
    Inventors: Markus Schopf, Joerg Sundermeyer, Jennifer Kiepke, Konstantin A. Rufanov, Walter Heitz, Uwe Peucker
  • Catalyst system for carrying out olefin polymerization comprising a calcined hydro-talcite serving as a supporting material
    Publication number: 20040033890
    Abstract: Catalyst system for olefin polymerization comprising
    Type: Application
    Filed: June 6, 2003
    Publication date: February 19, 2004
    Inventors: Shahram Mihan, Markus Schopf, Jiachim Wulff-Doring, Wolfgang Bidell, Volker Fraaije, Nicola Paczkowski, Markus Oberhoff
  • Catalytic solid supported on calcined hydrotalcite for olefinic polymerisation
    Publication number: 20030176275
    Abstract: Catalyst solid for olefin polymerization comprising
    Type: Application
    Filed: December 12, 2002
    Publication date: September 18, 2003
    Inventors: Volker Fraaije, Markus Oberhoff, Nicola (Hugsen) Paczkowski, Markus Schopf, Wolfgang Bidell, Joachim Wulff-Doring, Shahram Mihan