Patents by Inventor Marcel TRESKOW

Marcel TRESKOW 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: 20210317064
    Abstract: Methacrylic acid or alkyl methacrylate are produced starting from acrolein, which is available from glycerol or propane.
    Type: Application
    Filed: July 11, 2019
    Publication date: October 14, 2021
    Applicant: Röhm GmbH
    Inventors: Alexander May, Steffen Krill, Marcel Treskow, Diego Carambia, Gabriel Avella
  • Publication number: 20210269386
    Abstract: The present invention relates to a novel process for oxidative esterification, generally for reaction of aldehydes with alcohols in the presence of oxygenous gases directly to give the corresponding ester in the presence of a heterogeneous catalyst, by means of which, for example, (meth)acrolein can be converted to methyl (meth)acrylate. The new catalyst has titanium dioxide as the main component of the support material. The catalysts are especially notable for high mechanical and chemical stability and for good catalytic performance even over very long periods. The process is an improvement in the catalyst service life, activity and selectivity over prior art catalysts which lose activity and/or selectivity relatively quickly in continuous operation in media having even a small water content.
    Type: Application
    Filed: May 10, 2021
    Publication date: September 2, 2021
    Applicant: Roehm GmbH
    Inventors: Steffen KRILL, Marcel Treskow
  • Publication number: 20210269393
    Abstract: The invention relates to a method for preparing C—H acidic (meth)acrylates and the uses thereof.
    Type: Application
    Filed: July 10, 2019
    Publication date: September 2, 2021
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Marcel TRESKOW, Maik CASPARI, Thorben SCHÜTZ, Steffen KRILL
  • Publication number: 20210269385
    Abstract: A process for preparing methyl methacrylate by direct oxidative esterification of methacrolein has elevated yields compared to known processes. Methyl methacrylate (MMA) is used in large amounts for preparing polymers and copolymers with other polymerizable compounds. In addition, methyl methacrylate is an important synthesis unit for a variety of specialty esters based on methacrylic acid (MAA), which can be produced by transesterification with the appropriate alcohol. There is consequently a great interest in very simple, economic, and environmentally friendly processes for preparing methyl methacrylate. A superior workup of the reactor output from the oxidative esterification of methacrolein allows specific by-products to be isolated and then additionally converted to alkyl methacrylates, especially to MMA.
    Type: Application
    Filed: June 7, 2019
    Publication date: September 2, 2021
    Applicant: Röhm GmbH
    Inventors: Steffen Krill, Florian Zschunke, Belaid Ait Aissa, Marcel Treskow
  • Publication number: 20210214297
    Abstract: The invention relates to a method for preparing keto-functionalized aromatic (meth)acrylates.
    Type: Application
    Filed: May 21, 2019
    Publication date: July 15, 2021
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Tim Bleith, Steffen KRILL, Thorben SCHÜTZ, Doris SAAL, Marcel TRESKOW
  • Publication number: 20210179531
    Abstract: The invention relates to a method for preparation of diesters from anhydrides of carboxylic acids.
    Type: Application
    Filed: August 15, 2019
    Publication date: June 17, 2021
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Marcel TRESKOW, Martin GLOCK, Günther GRÄFF, Thorben SCHÜTZ, Steffen KRILL
  • Publication number: 20210179529
    Abstract: The invention relates to a method for preparation of (meth)acrylic acid esters from (meth)acrylic acid anhydrides.
    Type: Application
    Filed: July 31, 2019
    Publication date: June 17, 2021
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Marcel TRESKOW, Silvia BEYER, Thorben SCHÜTZ, Steffen KRILL
  • Publication number: 20210163439
    Abstract: The invention relates to a process for preparing cyclic organic carbonates, characterized in that an epoxide is initially charged in the presence of CO2 and then a catalyst is added.
    Type: Application
    Filed: June 7, 2019
    Publication date: June 3, 2021
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Marcel TRESKOW, Günther GRÄFF, Maik CASPARI, Thorben SCHÜTZ, Steffen KRILL, Tim BLEITH
  • Publication number: 20200331845
    Abstract: The present invention relates to a process for preparing dimethylaminoalkyl (meth)acrylates from alkyl (meth)acrylate and dimethylaminoalkanol. It likewise relates to the use of a catalyst system comprising a solution of a lithium alkoxide in alcohol in the preparation of a dimethylaminoalkyl (meth)acrylate.
    Type: Application
    Filed: September 28, 2018
    Publication date: October 22, 2020
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Marcel TRESKOW, Torsten KRÜGER, Thorben SCHÜTZ, Steffen KRILL
  • Publication number: 20190352251
    Abstract: The present invention describes storage-stable glycerol (meth)acrylate carboxylic esters and a method for preparing these esters.
    Type: Application
    Filed: November 14, 2017
    Publication date: November 21, 2019
    Applicant: Evonik Röhm GmbH
    Inventors: Patrik HARTMANN, Marita KAUFMANN, Steffen KRILL, Thorben SCHÜTZ, Marcel TRESKOW, Andrea WITTKOWSKI
  • Publication number: 20190084914
    Abstract: The present invention relates to a novel process for oxidative esterification, generally for reaction of aldehydes with alcohols in the presence of oxygenous gases directly to give the corresponding ester in the presence of a heterogeneous catalyst, by means of which, for example, (meth)acrolein can be converted to methyl (meth)acrylate. The new catalyst has titanium dioxide as the main component of the support material. The catalysts are especially notable for high mechanical and chemical stability and for good catalytic performance even over very long periods. The process is an improvement in the catalyst service life, activity and selectivity over prior art catalysts which lose activity and/or selectivity relatively quickly in continuous operation in media having even a small water content.
    Type: Application
    Filed: September 18, 2018
    Publication date: March 21, 2019
    Applicant: Evonik Roehm GmbH
    Inventors: Steffen Krill, Marcel Treskow
  • Patent number: 10227284
    Abstract: The present invention relates to a process for preparing alpha-hydroxycarboxylic esters proceeding from hydrogen cyanide, wherein the ammonia formed in the step of alcoholysis of the corresponding alpha-hydroxycarboxamide is recycled into a hydrogen cyanide preparation process after a purification step.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: March 12, 2019
    Assignee: Evonik Roehm GmbH
    Inventors: Steffen Krill, Belaid Ait Aissa, Alexander May, Marcel Treskow
  • Publication number: 20170283364
    Abstract: The present invention relates to a process for preparing alpha-hydroxycarboxylic esters proceeding from hydrogen cyanide, wherein the ammonia formed in the step of alcoholysis of the corresponding alpha-hydroxycarboxamide is recycled into a hydrogen cyanide preparation process after a purification step.
    Type: Application
    Filed: September 4, 2015
    Publication date: October 5, 2017
    Applicant: Evonik Roehm GmbH
    Inventors: Steffen KRILL, Belaid AIT AISSA, Alexander MAY, Marcel TRESKOW
  • Patent number: 9428437
    Abstract: The present invention describes a process for preparing alpha-beta-unsaturated carboxylic acids by dehydration of hydroxycarboxylic or alkoxycarboxylic acids which are substituted in the alpha position, in particular 2-hydroxyisobutyric acid, while avoiding accumulation of by-products and additives.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: August 30, 2016
    Assignee: EVONIK ROEHM GmbH
    Inventors: Alexander May, Steffen Krill, Joerg Becker, Willi Ploesser, Marcel Treskow, Martin Koestner
  • Publication number: 20160090344
    Abstract: The present invention describes a process for preparing alpha-beta-unsaturated carboxylic acids by dehydration of hydroxycarboxylic or alkoxycarboxylic acids which are substituted in the alpha position, in particular 2-hydroxyisobutyric acid, while avoiding accumulation of by-products and additives.
    Type: Application
    Filed: April 28, 2014
    Publication date: March 31, 2016
    Applicant: EVONIK ROEHM GmbH
    Inventors: Alexander MAY, Steffen KRILL, Joerg BECKER, Willi PLOESSER, Marcel TRESKOW, Martin KOESTNER