Patents by Inventor Michael Woelk-Fährmann

Michael Woelk-Fährmann 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).

  • Publication number: 20240110039
    Abstract: Tetraisopentyl esters of butanetetracarboxylic acid are useful as plasticizers or as part of a plasticizer composition for polymers, A process for the production thereof, plasticizer compositions containing the tetraisopentyl esters of butanetetracarboxylic acid, and plastics compositions containing the tetraisopentyl esters of butanetetracarboxylic acid are also provided,
    Type: Application
    Filed: September 28, 2023
    Publication date: April 4, 2024
    Applicant: Evonik Operations GmbH
    Inventors: Imke Schulz, Michael Woelk-Fährmann, Michael Grass, Stephan Becker, Michael van Eickels, Johannes Kraft
  • Patent number: 9505909
    Abstract: An ester mixture of dianhydrohexitol, a composition comprising the ester mixture and a polymer composition comprising the ester mixture or the composition, the use thereof, and a process by which the ester mixture can be prepared, where the ester mixture has a mean chain length of (8.3) to (9.2).
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: November 29, 2016
    Assignee: Roquette Frères
    Inventors: Michael Grass, Andreas Gevers, Benjamin Woldt, Michael Woelk-Faehrmann
  • Patent number: 9493632
    Abstract: An ester mixture of dianhydrohexitol, a composition comprising the ester mixture and a polymer composition comprising the ester mixture or the composition, the use thereof, and a process by which the ester mixture can be prepared, where the proportion of C8 based on the sum of C8 and C10 in the overall ester mixture is 45 mol % to 85 mol %.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: November 15, 2016
    Assignee: Evonik Degussa GmbH
    Inventors: Michael Grass, Andreas Gevers, Benjamin Woldt, Michael Woelk-Faehrmann
  • Patent number: 9346965
    Abstract: The invention relates to the use of heptyl esters of furan dicarboxylic acid as softeners.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: May 24, 2016
    Assignee: Evonik Degussa GmbH
    Inventors: Hinnerk Gordon Becker, Michael Grass, Andre Huber, Michael Woelk-Faehrmann
  • Publication number: 20160017259
    Abstract: The invention concerns an isononyl ester mixture of an epoxidized fatty acid mixture, the fatty acid mixture having been obtained from a vegetable oil, the fraction of saturated fatty acids in the isononyl ester mixture being below the fraction of saturated fatty acids in the vegetable oil from which the fatty acids have been obtained.
    Type: Application
    Filed: February 18, 2014
    Publication date: January 21, 2016
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Benjamin WOLDT, Michael GRASS, Michael WOELK-FAEHRMANN, Charlotte SCHNEIDER
  • Publication number: 20150291770
    Abstract: An ester mixture of dianhydrohexitol, a composition comprising the ester mixture and a polymer composition comprising the ester mixture or the composition, the use thereof, and a process by which the ester mixture can be prepared, where the ester mixture has a mean chain length of (8.3) to (9.2).
    Type: Application
    Filed: December 19, 2012
    Publication date: October 15, 2015
    Applicant: Evonik Industries AG
    Inventors: Michael Grass, Andreas Gevers, Benjamin Woldt, Michael Woelk-Faehrmann
  • Publication number: 20150152245
    Abstract: An ester mixture of dianhydrohexitol, a composition comprising the ester mixture and a polymer composition comprising the ester mixture or the composition, the use thereof, and a process by which the ester mixture can be prepared, where the proportion of C8 based on the sum of C8 and C10 in the overall ester mixture is 45 mol % to 85 mol %.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 4, 2015
    Applicant: Evonik Industries AG
    Inventors: Michael Grass, Andreas Gevers, Benjamin Woldt, Michael Woelk-Faehrmann
  • Publication number: 20140024754
    Abstract: The invention relates to the use of heptyl esters of furan dicarboxylic acid as softeners.
    Type: Application
    Filed: January 27, 2012
    Publication date: January 23, 2014
    Applicant: Evonik Oxeno GmbH
    Inventors: Hinnerk Gordon Becker, Michael Grass, Andre Huber, Michael Woelk-Faehrmann
  • Patent number: 8022244
    Abstract: A process for preparing benzoic esters whose alkoxy groups have from 7 to 13 carbon atoms by reacting benzoic acid with at least one alcohol having from 7 to 13 carbon atoms, the water of reaction formed being removed during the esterification reaction by distillation, and the alcohol not converted in the esterification reaction being removed after the esterification reaction, in which the reaction takes place in the presence of a tin(II) compound as catalyst and, without treatment with a base, the catalyst and/or its derivatives is/are separated off by filtering or by centrifuging from the reaction mixture which remains after the unconverted alcohol has been separated off.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: September 20, 2011
    Assignee: EVONIK OXENO GmbH
    Inventors: Michael Grass, Dietmar Gubisch, Michael Woelk-Faehrmann
  • Patent number: 7595421
    Abstract: A tripentyl citrate having an optionally acylated, preferably acetylated, OH group, a process for making the tripentyl citrate, and the use of the tripentyl citrate as a plasticizer for plastics.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: September 29, 2009
    Assignee: OXENO Olefinchemie GmbH
    Inventors: Michael Grass, Michael Woelk-Faehrmann
  • Publication number: 20070287781
    Abstract: A tripentyl citrate having an optionally acylated, preferably acetylated, OH group, a process for making the tripentyl citrate, and the use of the tripentyl citrate as a plasticizer for plastics.
    Type: Application
    Filed: April 24, 2007
    Publication date: December 13, 2007
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Michael Grass, Michael Woelk-Faehrmann