Patents by Inventor Benjamin Woldt

Benjamin Woldt 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).

  • Patent number: 11932749
    Abstract: A plasticizer composition contains a compound according to the following formula (I) wherein the radicals R1, R2 and R3 are each independently selected from n-pentyl, 2-methylbutyl and 3-methylbutyl. The plasticizer composition can be used as plasticizer for polymers and a corresponding plastic composition contains the plasticizer composition.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: March 19, 2024
    Assignee: Evonik Oxeno GmbH & Co. KG
    Inventors: Michael Grass, Florian Boeck, Benjamin Woldt
  • Publication number: 20220411604
    Abstract: A plasticizer composition contains a compound according to the following formula (I) wherein the radicals R1, R2 and R3 are each independently selected from n-pentyl, 2-methylbutyl and 3-methylbutyl. The plasticizer composition can be used as plasticizer for polymers and a corresponding plastic composition contains the plasticizer composition.
    Type: Application
    Filed: June 14, 2022
    Publication date: December 29, 2022
    Applicant: Evonik Operations GmbH
    Inventors: Michael Grass, Florian Boeck, Benjamin Woldt
  • Patent number: 10875981
    Abstract: An ester mixture of trialkyl esters of cyclohexane-1,2,4-tricarboxylates having isomeric pentyl radicals in which more than 5 mol % of the isomeric pentyl radicals are branched.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: December 29, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Benjamin Woldt, Michael Grass, Florian Boeck
  • Patent number: 10787414
    Abstract: A mixture of isomeric dipentyl terephthalates, pentyl radicals of which are n-pentyl radicals to an extent of less than 60 mol %, characterized by a low viscosity which does not increase significantly even at temperatures below 40° C. Plastisols comprising these mixtures have a low plastisol viscosity which moreover increases only to a minor degree with time.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: September 29, 2020
    Assignee: Evonik Operations GmbH
    Inventors: Florian Boeck, Michael Grass, Benjamin Woldt, André Huber, Christine Blex, Ulrike Blumenthal
  • Patent number: 10577479
    Abstract: Tripentyl esters of trimellitic acid, especially mixtures of triisopentyl esters of trimellitic acid comprising isomeric pentyl radicals in which more than 5 mol % of the isomeric pentyl radicals incorporated in the ester mixture are branched, have good compatibility with PVC and PVC-containing polymers and simultaneously exhibit a lesser tendency to migrate.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: March 3, 2020
    Assignee: Evonik Degussa GmbH
    Inventors: Benjamin Woldt, Michael Grass, Florian Boeck
  • Patent number: 10544279
    Abstract: Ester mixtures comprising the esters A(COOR1)(COOR1)x, A(COOR1)(COOR2)x, A(COOR2)(COOR1)x and A(COOR2)(COOR2)x, can be produced in a targeted way by processes in which acids A(COOH)x+1 or derivatives thereof are reacted with an amount (m1+s1) of R1OH and an amount m2 of R2OH, the reaction mixture being heated at boiling, the alcohol R1OH having a lower boiling point than the alcohol R2OH, A being an aromatic, alicyclic or aliphatic radical, x being 1 or 2, and R1 and R2 independently of one another being substituted or unsubstituted aryl radicals or linear or branched, substituted or unsubstituted alkyl radicals having 3 to 20 carbon atoms, m1 and m2 corresponding to the mole equivalents of the alcohol radicals OR1 and OR2 to be introduced into A(COOH)x+1 or derivatives thereof, and s1 being greater than 0.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: January 28, 2020
    Assignee: Evonik Degussa GmbH
    Inventors: Florian Boeck, Carsten Gehlen, Michael Grass, Benjamin Woldt
  • Patent number: 10421850
    Abstract: Mixtures containing dipentyl terephthalate, dinonyl terephthalate and pentyl nonyl terephthalate can be prepared with a predetermined distribution of the individual esters in the mixture, and used as plasticizers.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: September 24, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Benjamin Woldt, Florian Sebastian Boeck, Michael Grass, Harald Haeger
  • Publication number: 20180319954
    Abstract: Tripentyl esters of trimellitic acid, especially mixtures of triisopentyl esters of trimellitic acid comprising isomeric pentyl radicals in which more than 5 mol % of the isomeric pentyl radicals incorporated in the ester mixture are branched, have good compatibility with PVC and PVC-containing polymers and simultaneously exhibit a lesser tendency to migrate.
    Type: Application
    Filed: July 6, 2018
    Publication date: November 8, 2018
    Applicant: Evonik Degussa GmbH
    Inventors: Benjamin WOLDT, Michael Grass, Florian Boeck
  • Publication number: 20180208541
    Abstract: A mixture of isomeric dipentyl terephthalates, pentyl radicals of which are n-pentyl radicals to an extent of less than 60 mol %, characterized by a low viscosity which does not increase significantly even at temperatures below 40° C. Plastisols comprising these mixtures have a low plastisol viscosity which moreover increases only to a minor degree with time.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 26, 2018
    Inventors: Florian Boeck, Michael Grass, Benjamin Woldt, André Huber, Christine Blex, Ulrike Blumenthal
  • Publication number: 20170088691
    Abstract: Tripentyl esters of trimellitic acid, especially mixtures of triisopentyl esters of trimellitic acid comprising isomeric pentyl radicals in which more than 5 mol % of the isomeric pentyl radicals incorporated in the ester mixture are branched, have good compatibility with PVC and PVC-containing polymers and simultaneously exhibit a lesser tendency to migrate.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 30, 2017
    Applicant: Evonik Degussa GmbH
    Inventors: Benjamin WOLDT, Michael GRASS, Florian BOECK
  • 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
  • Publication number: 20160237244
    Abstract: Ester mixtures comprising the esters A(COOR1)(COOR1)x, A(COOR1)(COOR2)x, A(COOR2)(COOR1)x and A(COOR2)(COOR2)x, can be produced in a targeted way by processes in which acids A(COOH)x+1 or derivatives thereof are reacted with an amount (m1+s1) of R1OH and an amount m2 of R2OH, the reaction mixture being heated at boiling, the alcohol R1OH having a lower boiling point than the alcohol R2OH, A being an aromatic, alicyclic or aliphatic radical, x being 1 or 2, and R1 and R2 independently of one another being substituted or unsubstituted aryl radicals or linear or branched, substituted or unsubstituted alkyl radicals having 3 to 20 carbon atoms, m1 and m2 corresponding to the mole equivalents of the alcohol radicals OR1 and OR2 to be introduced into A(COOH)x+1 or derivatives thereof, and s1 being greater than 0.
    Type: Application
    Filed: February 18, 2016
    Publication date: August 18, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Florian Sebastian BOECK, Carsten GEHLEN, Michael GRASS, Benjamin WOLDT
  • Publication number: 20160237243
    Abstract: Mixtures containing dipentyl terephthalate, dinonyl terephthalate and pentyl nonyl terephthalate can be prepared with a predetermined distribution of the individual esters in the mixture, and used as plasticizers.
    Type: Application
    Filed: February 17, 2016
    Publication date: August 18, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Benjamin WOLDT, Florian Sebastian BOECK, Michael GRASS, Harald HAEGER
  • Publication number: 20160060426
    Abstract: A mixture (1) can be prepared in a controlled manner and used as a plasticizer, the mixture contains an epoxidized fatty acid ester A; and a compound B containing a fatty acid chain and having no functional group including a multiple bond in the fatty acid chain. The proportion by mass of compound B is smaller in said mixture (1) than a proportion of compound B in a mixture (2) of compounds containing a fatty acid chain from which the mixture (1) comprising epoxidized fatty acid ester A has been prepared.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 3, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Benjamin WOLDT, Florian BOECK, Andreas GEVERS, Michael GRASS
  • 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: 20160009898
    Abstract: The invention relates to an isononyl ester or isononyl ester mixture of an epoxidized fatty acid or an epoxidized fatty acid mixture, the fatty acid or fatty acid mixture being extracted from tall oil or linseed oil and the average number of epoxide groups per fatty acid being greater than 1.00.
    Type: Application
    Filed: February 14, 2014
    Publication date: January 14, 2016
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Benjamin Woldt, Michael Grass, Andreas Gevers
  • Publication number: 20150329484
    Abstract: Esters having at least one sulphone group on the acid chain, processes for preparation thereof and use of the ester as a plasticizer for polymers.
    Type: Application
    Filed: September 17, 2013
    Publication date: November 19, 2015
    Applicant: Evonik Degussa GmbH
    Inventors: Michael GRASS, Benjamin WOLDT, Andreas GEVERS, Stefan BUCHHOLZ, Michael MEIER, Lucas MONTERO DE ESPINOSA
  • 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