Patents by Inventor Diana Dötsch

Diana Dötsch 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).

  • Polyethylene composition and finished products made thereof
    Patent number: 9090719
    Abstract: Novel polyethylenes having defined molecular weight distribution and LCB structure are devised, for films or moldings.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: July 28, 2015
    Assignee: Basell Polyolefine GmbH
    Inventors: Joachim Berthold, Bernd Lothar Marczinke, Diana Doetsch, Iakovos Vittorias, Dieter Lilge, Heinz Vogt, Johannes-Gerhard Müller
  • Polyethylene processes and compositions thereof
    Patent number: 9023945
    Abstract: Embodiments of the present disclosure relate to a method of preparing polyethylene compositions comprising polymerizing ethylene in a first gas-phase reactor and polymerizing ethylene in a second gas-phase reactor in the presence of hydrogen; wherein at least one of the first or second gas-phase reactors comprises a first and second polymerization zone; wherein a hydrogen pressure of the first and second polymerization zones are different such that at least a portion of the second ethylene cycles through the first and second polymerization zones and a gas mixture of each polymerization zone is partially or totally prevented from entering the other zone.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: May 5, 2015
    Assignee: Basell Polyolefine GmbH
    Inventors: Harilaos Mavridis, Gerhardus Meier, Ulf Schueller, Diana Doetsch, Bernd Marczinke, Iakovos Vittorias
  • POLYETHYLENE PROCESSES AND COMPOSITIONS THEREOF
    Publication number: 20140243475
    Abstract: Embodiments of the present disclosure relate to a method of preparing polyethylene compositions comprising polymerizing ethylene in a first gas-phase reactor and polymerizing ethylene in a second gas-phase reactor in the presence of hydrogen; wherein at least one of the first or second gas-phase reactors comprises a first and second polymerization zone; wherein a hydrogen pressure of the first and second polymerization zones are different such that at least a portion of the second ethylene cycles through the first and second polymerization zones and a gas mixture of each polymerization zone is partially or totally prevented from entering the other zone.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 28, 2014
    Applicants: Basell Polyolefine GmbH, Equistar Chemicals, LP
    Inventors: Harilaos Mavridis, Gerhardus Meier, Ulf Schueller, Diana Doetsch, Bernd Marczinke, Iakovos Vittorias
  • Polyethylene moulding composition
    Patent number: 8722802
    Abstract: A novel polyethylene composition is described. The composition is suitable for manufacturing especially stretched bands or tapes, also coined raffia in the art.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: May 13, 2014
    Assignee: Basell Polyolefine GmbH
    Inventors: Joachim Berthold, Bernd Lothar Marczinke, Diana Doetsch, Johannes-Gerhard Müller
  • NOVEL TRIMODAL POLYETHYLENE FOR USE IN BLOW MOULDING
    Publication number: 20130243990
    Abstract: A novel polyethylene formed by Ziegler catalyst is devised, for use in blow moulding.
    Type: Application
    Filed: November 21, 2011
    Publication date: September 19, 2013
    Applicant: Basell Polyolefine GmbH
    Inventors: Joachim Berthold, Bernd Lothar Marczinke, Diana Doetsch, Rainer Sattel, Iakovos Vittorias, Peter Bisson
  • Novel Trimodal Polyethylene for use in Blow Moulding
    Publication number: 20120214926
    Abstract: A novel polyethylene formed by Ziegler catalyst is devised, for use in blow moulding.
    Type: Application
    Filed: November 22, 2010
    Publication date: August 23, 2012
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: Joachim Berthold, Bernd Lothar Marczinke, Diana Dötsch, Rainer Sattel, Iakovos Vittorias, Peter Bisson
  • Polyethylene Moulding Composition
    Publication number: 20120108752
    Abstract: A novel polyethylene composition is described. The composition is suitable for manufacturing especially stretched bands or tapes, also coined raffia in the art.
    Type: Application
    Filed: June 24, 2010
    Publication date: May 3, 2012
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: Joachim Berthold, Bernd Lothar Marczinke, Diana Dötsch, Johannes-Gerhard Müller
  • Polyethylene Composition and Finished Products Made Thereof
    Publication number: 20120108766
    Abstract: Novel polyethylenes having defined molecular weight distribution and LCB structure are devised, for films or mouldings.
    Type: Application
    Filed: May 27, 2010
    Publication date: May 3, 2012
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: Joachim Berthold, Bernd Lothar Marczinke, Diana Doetsch, Iakovos Vittorias, Dieter Lilge, Heinz Vogt, Johannes-Gerhard Müller
  • PE MOULDING COMPOSITION FOR PRODUCING INJECTION-MOLDED SCREW CAP CLOSURES AND HIGH-STRENGHT SCREW CAP FOR CARBONATED BEVERAGES PRODUCES THEREWITH
    Publication number: 20110062108
    Abstract: The invention relates to a polyethylene moulding composition having a multimodal molecular mass distribution and comprising a first ethylene homopolymer fraction (I), a second ethylene copolymer fraction (II) and a third ethylene copolymer fraction (III). The moulding composition has a density at a temperature of 23° C. in the range from 0.945 to 0.953 g/cm3, an MFR (190° C./5 kg) in the range from 2 to 7 g/10 min and a viscosity number VN3 of the total mix of ethylene homopolymer fraction (I), copolymer fraction (II) and ethylene copolymer fraction (III), measured in accordance with ISO/R 1191 in decalin at a temperature of 135° C., in the range from 200 to 250 cm3/g. The invention further relates to the use of such a moulding composition for producing high-strength injection-molded screw cap closures for bottles comprising beverages, especially carbonated beverages.
    Type: Application
    Filed: December 13, 2008
    Publication date: March 17, 2011
    Inventors: Joachim Berthold, Diana Doetsch nee Boos, Gerhardus Meier, Albert Weber