Patents by Inventor Lenka Richter-Lukesova

Lenka Richter-Lukesova 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).

  • Process for controlling the polymer composition of an ethylene copolymer obtained by a catalyst system comprising a transition metal catalyst component and a Ziegler catalyst component
    Patent number: 10392455
    Abstract: A method of controlling the polymer composition of an ethylene copolymer in a process for preparing ethylene copolymers by copolymerizing ethylene and at least one other olefin in the presence of a polymerization catalyst system comprising at least one late transition metal catalyst component (A), at least one Ziegler catalyst component (B), and at least one activating compound (C) by adding an alkyl alkoxy silane or a dialkyl ether for increasing the relative portion of the ethylene copolymer component obtained from polymerization by late transition metal catalyst component (A), or by adding a saturated halogenated hydrocarbon for increasing the relative portion of the ethylene copolymer component obtained from polymerization by Ziegler catalyst component (B), processes for copolymerizing ethylene and at least one other olefin in the presence of such a polymerization catalyst system comprising utilizing the controlling method, a method for altering the polymer composition of an ethylene copolymer obtai
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: August 27, 2019
    Assignee: Basell Polyolefine GmbH
    Inventors: Marc Oliver Kristen, Lenka Richter-Lukesova
  • Polyethylene of raised temperature resistance
    Patent number: 9671047
    Abstract: The present disclosure relates to a polyethylene composition of Raised Temperature Resistance, having the following features: 1) a density from 0.935 to 0.945 g/cm3; 2) a melt flow index MIF from 10 to 18 g/10 min; 3) a melt flow index MIP from 1 to 2.5 g/10 min; and 4) a MIF/MIP ratio from 5 to 10.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: June 6, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Heinz Vogt, Shahram Mihan, Gerd Mannebach, Lenka Richter-Lukesova, Markus Meierhöfer, Holger Brüning
  • POLYETHYLENE OF RAISED TEMPERATURE RESISTANCE
    Publication number: 20160298795
    Abstract: The present disclosure relates to a polyethylene composition of Raised Temperature Resistance, having the following features: 1) a density from 0.935 to 0.945 g/cm3; 2) a melt flow index MIF from 10 to 18 g/10 min; 3) a melt flow index MIP from 1 to 2.5 g/10 min; and 4) a MIF/MIP ratio from 5 to 10.
    Type: Application
    Filed: September 24, 2014
    Publication date: October 13, 2016
    Applicant: Basell Polyolefine GmbH
    Inventors: Heinz Vogt, Shahram Mihan, Gerd Mannebach, Lenka Richter-Lukesova, Markus Meierhõfer, Holger Brüning
  • Catalyst system for the preparation of polyolefins
    Patent number: 9458271
    Abstract: A catalyst system obtainable by contacting: A) a metal complex of formula (I) B) an iron complex of the general formula (II) C) an alumoxane or a compound capable of forming an alkyl cation with complexes of formula (I) and (II); Wherein the variables are described in the description.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: October 4, 2016
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Lenka Richter-Lukesova, Shahram Mihan, Sandor Nagy
  • CATALYST SYSTEM FOR THE PREPARATION OF POLYOLEFINS
    Publication number: 20150329657
    Abstract: A catalyst system obtainable by contacting: A) a metal complex of formula (I) B) an iron complex of the general formula (II) C) an alumoxane or a compound capable of forming an alkyl cation with complexes of formula (I) and (II); Wherein the variables are described in the description
    Type: Application
    Filed: November 25, 2013
    Publication date: November 19, 2015
    Inventors: Lenka Richter-Lukesova, Shahram Mihan, Sandor Nagy
  • PROCESS FOR CONTROLLING THE POLYMER COMPOSITION OF AN ETHYLENE COPOLYMER OBTAINED BY A CATALYST SYSTEM COMPRISING A TRANSITION METAL CATALYST COMPONENT AND A ZIEGLER CATALYST COMPONENT
    Publication number: 20140329978
    Abstract: A method of controlling the polymer composition of an ethylene copolymer in a process for preparing ethylene copolymers by copolymerizing ethylene and at least one other olefin in the presence of a polymerization catalyst system comprising at least one late transition metal catalyst component (A), at least one Ziegler catalyst component (B), and at least one activating compound (C) by adding an alkyl alkoxy silane or a dialkyl ether for increasing the relative portion of the ethylene copolymer component obtained from polymerization by late transition metal catalyst component (A), or by adding a saturated halogenated hydrocarbon for increasing the relative portion of the ethylene copolymer component obtained from polymerization by Ziegler catalyst component (B), processes for copolymerizing ethylene and at least one other olefin in the presence of such a polymerization catalyst system comprising utilizing the controlling method, a method for altering the polymer composition of an ethylene copolymer obtai
    Type: Application
    Filed: December 17, 2012
    Publication date: November 6, 2014
    Applicant: Basell Polyolefine GmbH
    Inventors: Marc Oliver Kristen, Lenka Richter-Lukesova
  • PROCESS FOR THE MANUFACTURE OF A MIXED CATALYST SYSTEM FOR THE COPOLYMERIZATION OF ETHYLENE WITH C1-C12 ALPHA-OLEFINS
    Publication number: 20140088275
    Abstract: A novel process for the manufacture of a mixed catalyst system by combining a Ziegler catalyst and a tridentate iron complex is described, which is characterized in that the reaction of a tridentate ligand with an iron compound is performed in an organic solvent containing less than 10 percent by weight, based on the total amount of the organic solvent, of electron donor compounds selected from the group consisting of ethers, aliphatic esters, aromatic esters, tertiary amines, amides, silanes, silazanes or orthoesters.
    Type: Application
    Filed: May 10, 2012
    Publication date: March 27, 2014
    Applicant: Basell Polyolefine GmbH
    Inventors: Lenka Richter-Lukesova, Barbara Gall, Shahram Mihan, Michael Schiendorfer
  • PROCESS FOR CONTROLLING THE RELATIVE ACTIVITY OF ACTIVE CENTERS OF CATALYST SYSTEMS COMPRISING AT LEAST ONE LATE TRANSITION METAL CATALYST COMPONENT AND AT LEAST ONE ZIEGLER CATALYST COMPONENT
    Publication number: 20130274427
    Abstract: A method of controlling the polymer composition of an ethylene copolymer in a process for preparing ethylene copolymers by copolymerizing ethylene and at least one other olefin in the presence of a polymerization catalyst system comprising at least one late transition metal catalyst component (A) having a tridentate ligand which bears at least two ortho, ortho?-disubstituted aryl radicals, at least one Ziegler catalyst component (B), and at least one activating compound (C) by varying the polymerization temperature, a process for copolymerizing ethylene and at least one other olefin in the presence of such a polymerization catalyst system comprising utilizing the controlling method, a method for altering the polymer composition of an ethylene copolymer obtained by copolymerizing ethylene and at least one other olefin in the presence of such a polymerization catalyst system by varying the polymerization temperature and a method for transitioning from one ethylene copolymer grade to another by using the method
    Type: Application
    Filed: December 19, 2011
    Publication date: October 17, 2013
    Applicant: BASELL POLOYOLEFINE GmbH
    Inventors: Lenka Richter-Lukesova, Harald Schmitz, Shahram Mihan, Maclovio Herrera Salinas, Gerhardus Meier