Patents by Inventor Michael Traving

Michael Traving 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: 20190322801
    Abstract: The invention relates to a method for producing polyether carbonate polyols by adding alkylene oxides and carbon dioxide to an H-functional starter substance in the presence of a double metal cyanide (DMC) catalyst or in the presence of a metal complex catalyst based on the metals zinc and/or cobalt, wherein (?) alkylene oxide and carbon dioxide are added to an H-functional starter substance in a reactor with a total pressure (absolute) of 5 to 120 bar in the presence of a double metal cyanide catalyst or in the presence of a metal complex catalyst based on the metals zinc and/or cobalt, and a reaction mixture containing the polyether carbonate polyol is obtained, (?) the reaction mixture obtained in step (?) remains in the reactor or is optionally continuously transferred to a downstream reactor at a starting total pressure (absolute) of 5 to 120 bar, the content of free alkylene oxide in the reaction mixture being reduced in the course of a downstream reaction in each case, and the total pressure (absolute)
    Type: Application
    Filed: June 20, 2017
    Publication date: October 24, 2019
    Inventors: Jörg HOFMANN, Urs RAUWALD, Stefanie BRAUN, Matthias WOHAK, Hartmut NEFZGER, Nicole WELSCH, Aurel WOLF, Michael TRAVING, Lars KRUEGER
  • Patent number: 10208162
    Abstract: The present invention relates to a method for producing polyether carbonate polyols by addition of one or more alkylene oxides and carbon dioxide to one or more H-functional starter substances in the presence of at least one DMC catalyst, in which the reaction is conducted in a main reactor (8) and a tubular reactor (11, 17) connected as a post reactor downstream thereof, wherein the method is characterized in that at the outlet (13) of the tubular reactor (11, 17) a temperature is set that is at least 10° C. above the temperature in the inside of the main reactor (8). The invention further relates to a device for carrying out said method.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: February 19, 2019
    Assignee: COVESTRO DEUTSCHLAND AG
    Inventors: Stefanie Braun, Horst Zwick, Matthias Wohak, Jörg Hofmann, Aurel Wolf, Michael Traving, Rolf Bachmann
  • Patent number: 10040901
    Abstract: The invention relates to a method for producing polyether carbonate polyols by binding alkylene oxides and carbon dioxide to one or more H-functional starter substance/s in the presence of a double metal cyanide (DMC) catalyst, characterized in that (y) one or more H-functional starter substance/s and DMC catalyst are continuously metered into the reactor during the binding process, and the free alkylene oxide concentration in the reaction mixture amounts to 1.5 to 5.0 wt %, and the obtained reaction mixture is continuously discharged from the reactor.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: August 7, 2018
    Assignee: COVESTRO DEUTSCHLAND AG
    Inventors: Jörg Hofmann, Stefanie Braun, Kai Laemmerhold, Aurel Wolf, Michael Traving
  • Publication number: 20170198092
    Abstract: The present invention relates to a method for producing polyether carbonate polyols by addition of one or more alkylene oxides and carbon dioxide to one or more H-functional starter substances in the presence of at least one DMC catalyst, in which the reaction is conducted in a main reactor (8) and a tubular reactor (11, 17) connected as a post reactor downstream thereof, wherein the method is characterized in that at the outlet (13) of the tubular reactor (11, 17) a temperature is set that is at least 10° C. above the temperature in the inside of the main reactor (8). The invention further relates to a device for carrying out said method.
    Type: Application
    Filed: June 30, 2015
    Publication date: July 13, 2017
    Inventors: Stefanie Braun, Horst Zwick, Matthias Wohak, Jörg Hofmann, Aurel Wolf, Michael Traving, Rolf Bachmann
  • Publication number: 20170137569
    Abstract: The invention relates to a method for producing polyether carbonate polyols by binding alkylene oxides and carbon dioxide to one or more H-functional starter substance/s in the presence of a double metal cyanide (DMC) catalyst, characterized in that (y) one or more H-functional starter substance/s and DMC catalyst are continuously metered into the reactor during the binding process, and the free alkylene oxide concentration in the reaction mixture amounts to 1.5 to 5.0 wt %, and the obtained reaction mixture is continuously discharged from the reactor.
    Type: Application
    Filed: June 30, 2015
    Publication date: May 18, 2017
    Inventors: Jörg Hofmann, Stefanie Braun, Kai Laemmerhold, Aurel Wolf, Michael Traving
  • Patent number: 8882984
    Abstract: A process for preparing diaryl carbonate and utilizing at least part of the process wastewater by increasing the concentration of the wastewater phases containing sodium chloride for the electrolysis by means of osmotic membrane distillation with simultaneous dilution of the sodium hydroxide solution obtained from the electrolysis for the diaryl carbonate production process (diphenyl carbonate process) is described.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: November 11, 2014
    Assignee: Bayer MaerialScience AG
    Inventors: Pieter Ooms, Andreas Bulan, Johann Rechner, Rainer Weber, Michael Traving, Marc Buts, Johan Vanden Eynde
  • Patent number: 8354028
    Abstract: A method for separating electrolyte-containing water from an organic phase by means of permeation on a hydrophobic separating means. The permeated organic solution is substantially depleted in water and the retained water is enriched with electrolytes.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: January 15, 2013
    Assignee: Bayer Material Science AG
    Inventors: Helmut Meyer, Guido Naberfeld, Johann Rechner, Rafael Warsitz, Michael Traving, Werner Bäcker, Thomas Elsner, Arno Nennemann, Stephan Bahnmuler, Gerhard Langstein, Julia Hitzbleck, Patrick Theato, Daniel Kessler, Daniel-Gordon Duff, Sascha Plug
  • Patent number: 8252161
    Abstract: Method for improving selectivity and productivity during purification of charged macromolecules and particles by electrofiltration by means of membranes in the electric filed. The ratio between the electric field and the permeate flow through the membrane is kept constant.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: August 28, 2012
    Assignee: Bayer Technology Services GmbH
    Inventors: Gregor Dudziak, Michael Traving, Martina Mutter
  • Patent number: 8106144
    Abstract: A process is described for producing polycarbonate and utilizing at least some of the process waste water by concentrating the sodium chloride-containing waste water phases for the electrolysis using osmotic membrane distillation, if appropriate with simultaneous dilution of the sodium hydroxide solution obtained from the electrolysis for the polycarbonate production process.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: January 31, 2012
    Assignee: Bayer MaterialScience AG
    Inventors: Pieter Ooms, Andreas Bulan, Rainer Weber, Johann Rechner, Michael Traving
  • Publication number: 20100324256
    Abstract: A process is described for producing polycarbonate and utilizing at least some of the process waste water by concentrating the sodium chloride-containing waste water phases for the electrolysis using osmotic membrane distillation, if appropriate with simultaneous dilution of the sodium hydroxide solution obtained from the electrolysis for the polycarbonate production process.
    Type: Application
    Filed: May 21, 2010
    Publication date: December 23, 2010
    Applicant: Bayer MaterialsScience AG
    Inventors: Pieter Ooms, Andreas Bulan, Rainer Weber, Johann Rechner, Michael Traving
  • Publication number: 20100286431
    Abstract: A process for preparing diaryl carbonate and utilizing at least part of the process wastewater by increasing the concentration of the wastewater phases containing sodium chloride for the electrolysis by means of osmotic membrane distillation with simultaneous dilution of the sodium hydroxide solution obtained from the electrolysis for the diaryl carbonate production process (diphenyl carbonate process) is described.
    Type: Application
    Filed: April 13, 2010
    Publication date: November 11, 2010
    Applicant: Bayer MaterialScience AG
    Inventors: Pieter Ooms, Andreas Bulan, Johann Rechner, Rainer Weber, Michael Traving, Marc Buts, Johan Vanden Eynde
  • Publication number: 20100145108
    Abstract: The invention relates to an industrial process for purifying the product mixture of a transesterification reaction with a polar, electrolyte-containing organic phase, in which the electrolytes are removed from the permeating polar organic phase by means of a nanofiltration step.
    Type: Application
    Filed: April 10, 2008
    Publication date: June 10, 2010
    Applicant: BAYER TECHNOLOGY SERVICES GMBH
    Inventors: Michael Traving, Johannes-Peter Schaefer, Rafael Warsitz, Waldemar Widuch, Werner Bäcker, Uwe Spörer
  • Publication number: 20080185343
    Abstract: A method for separating electrolyte-containing water from an organic phase by means of permeation on a hydrophobic separating means. The permeated organic solution is substantially depleted in water and the retained water is enriched with electrolytes.
    Type: Application
    Filed: October 22, 2007
    Publication date: August 7, 2008
    Applicant: BAYER MATERIALSCIENCE AG
    Inventors: HELMUT MEYER, GUIDO NABERFELD, JOHANN RECHNER, RAFAEL WARSITZ, MICHAEL TRAVING, WERNER BACKER, THOMAS ELSNER, ARNO NENNEMANN
  • Publication number: 20080156648
    Abstract: Method for improving selectivity and productivity during purification of charged macromolecules and particles by electrofiltration by means of membranes in the electric filed. The ratio between the electric field and the permeate flow through the membrane is kept constant.
    Type: Application
    Filed: March 6, 2006
    Publication date: July 3, 2008
    Applicant: BAYER TECHNOLOGY SERVICES GMBH
    Inventors: Gregor Dudziak, Michael Traving, Martina Mutter
  • Patent number: 7393969
    Abstract: The present invention relates to calix[4]arenes which effectively bind alkali metal ions (Na+, K+) and transport them over phase boundaries, their preparation and use.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: July 1, 2008
    Assignee: Bayer Technology Services GmbH
    Inventors: Michael Traving, Wilfried Gutknecht, Werner Bäcker, Wolfgang Kummer, Rainer Ludwig
  • Publication number: 20070232826
    Abstract: The present invention relates to calix[4]arenes which effectively bind alkali metal ions (Na+, K+) and transport them over phase boundaries, their preparation and use.
    Type: Application
    Filed: August 16, 2005
    Publication date: October 4, 2007
    Applicants: BAYER TECHNOLOGY SERVICES GMBH, H.C. STARCK GMBH
    Inventors: Michael Traving, Wilfried Gutknecht, Werner Backer, Wolfgang Kummer, Rainer Ludwig
  • Publication number: 20050242030
    Abstract: A device and a process are described for membrane electrophoresis or electrofiltration. The device contains at least one input chamber, one output chamber, and one cathode chamber and anode chamber each, whereby the individual chambers are separated from one another by membranes, and are integrated into a permanently attached module with membranes, and whereby the electrodes are integrated into the module, and the module is connected to constructions enabling continuous flow through the input and output chambers, as well as through the electrode chambers. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader quickly to ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the appended issued claims. 37 CFR §1.72(b).
    Type: Application
    Filed: February 10, 2005
    Publication date: November 3, 2005
    Applicant: Bayer Technology Services GmbH
    Inventors: Ralf Lausch, Oscar-Werner Reif, Ulrich Grummert, Stefan Haufe, Holger Linne, Andre Pastor, Gregor Dudziak, Andreas Nickel, Martina Mutter, Michael Traving
  • Patent number: 6855766
    Abstract: The invention concerns a process for concentrating polymer latexes, which can be separated into a latex phase and a serum phase in a separator with the aid of an auxiliary coalescing device.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: February 15, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christiane Oppenheimer-Stix, Michael Traving
  • Patent number: 6734325
    Abstract: A process for the separation and recycling of catalyst components from a chemical reaction mixture is disclosed. The process entails at least one extraction step.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: May 11, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Claus-Peter Reisinger, Sven Michael Hansen, Peter Fischer, Michael Traving
  • Patent number: 6727393
    Abstract: A process for the preparation of a solution of a quaternary cation and an anion from a deprotonated hydroxy aromatic in an organic solvent by means of a reactive extraction of a quaternary salt in the presence of an aqueous hydroxide solution, a hydroxy aromatic and an organic solvent is disclosed. Also disclosed is a process for the recycling of a quaternary salt phenolate solution from a reaction mixture.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: April 27, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Claus-Peter Reisinger, Sven Michael Hansen, Peter Fischer, Michael Traving