Patents by Inventor Jochen Kroll

Jochen Kroll 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).

  • SEALING COMPOUNDS
    Publication number: 20190382517
    Abstract: A polymer based sealing compound applied to vehicle tyres for the reduction of tyre noise, a process for producing such sealing compounds, and the use thereof in tyres for noise reduction.
    Type: Application
    Filed: January 25, 2018
    Publication date: December 19, 2019
    Applicant: ARLANXEO DEUTSCHLAND GMBH
    Inventors: Jiawen ZHOU, Christopher KOHL, Udo SCHMIDT, Jochen KROLL, Alex LUCASSEN, Thomas FRÜH
  • Method for Producing Moulded Parts Containing Polybutadiene
    Publication number: 20110288193
    Abstract: The present invention relates to a novel process for the production of polybutadiene-containing mouldings.
    Type: Application
    Filed: October 23, 2009
    Publication date: November 24, 2011
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Heike Kloppenburg, Alex Lucassen, David Hardy, Jochen Kroll, Alexander Lissy, Dino Tebling
  • Process for determining a molecular weight distribution in a polymer
    Patent number: 7917308
    Abstract: The invention relates to a process for determining a molecular weight distribution in a polymer. When a polymer is prepared, chains of different length are formed. Correspondingly, a distribution of the molecular weights of the chains of a polymer arises. It is an object of the invention to be able to determine the molecular weight distribution in an improved manner compared to the prior art. The object of the invention is achieved by describing starting data G*(?) available in numerical form, i.e. the complex shear modulus measured as a function of frequency or the mastercurve constructed therefrom, are described by an analytical function. In this way, exact knowledge of the relaxation behaviour is available in improved form, in particular also in the case of prolonged relaxation times. This enables a valid determination of the relaxation time spectrum and hence a fundamentally more valid calculation of the molecular weight distribution.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: March 29, 2011
    Assignee: LANXESS Deutschland GmbH
    Inventors: Claus Wrana, Jochen Kroll
  • Process for determining a molecular weight distribution in a polymer
    Publication number: 20080162055
    Abstract: The invention relates to a process for determining a molecular weight distribution in a polymer. When a polymer is prepared, chains of different length are formed. Correspondingly, a distribution of the molecular weights of the chains of a polymer arises. It is an object of the invention to be able to determine the molecular weight distribution in an improved manner compared to the prior art. The object of the invention is achieved by describing starting data G*(?) available in numerical form, i.e. the complex shear modulus measured as a function of frequency or the mastercurve constructed therefrom, are described by an analytical function. In this way, exact knowledge of the relaxation behaviour is available in improved form, in particular also in the case of prolonged relaxation times. This enables a valid determination of the relaxation time spectrum and hence a fundamentally more valid calculation of the molecular weight distribution.
    Type: Application
    Filed: November 6, 2007
    Publication date: July 3, 2008
    Inventors: Claus Wrana, Jochen Kroll