Patents by Inventor Kurt F. Hirsekorn

Kurt F. Hirsekorn 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: 10189756
    Abstract: The present invention provides adiabatic plug flow reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors comprise one or more designs that minimize the production of by-products at a desired conversion.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: January 29, 2019
    Assignee: BLUE CUBE IP LLC
    Inventors: Max M. Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, Thomas U. Luebbe, Thomas J. Parsons, Avani Maulik Patel, Marcus Wobser
  • Patent number: 9512049
    Abstract: Processes for the production of alkenes are provided. The processes make use of methane as a low cost starting material.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: December 6, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Max Markus Tirtowidjojo, Brien A. Stears, William J. Kruper, Jr., Kurt F. Hirsekorn, Debashis Chakraborty
  • Publication number: 20160347692
    Abstract: The present invention provides adiabatic plug flow reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors comprise one or more designs that minimize the production of by-products at a desired conversion.
    Type: Application
    Filed: July 7, 2016
    Publication date: December 1, 2016
    Inventors: Max M. Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, Thomas U. Luebbe, Thomas J. Parsons, Avani Maulik Patel, Marcus Wobser
  • Patent number: 9451707
    Abstract: Zero-valent silver compositions include 4-dimethylaminopyridine as stabilizers. The zero-valent silver and the 4-diemthylaminopyridine form stabilized nano-particles in solution. The zero-valent silver compositions may be used as catalysts in the metallization of non-conductive substrates.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: September 20, 2016
    Inventor: Kurt F. Hirsekorn
  • Patent number: 8927792
    Abstract: Processes for the production of chlorinated and/or fluonnated propenes provide good product yield with advantageous impurity profiles in the crude product. Advantageously, the processes may be conducted at lower temperatures than 600° C., or less than 500° C., so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts or initiators may provide additional enhancements to conversion rates and selectivity, as may adjustments to the molar ratio of the reactants.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: January 6, 2015
    Assignee: Dow AgroSciences, LLC
    Inventors: Max M. Tirtowidjojo, William J. Kruper, Jr., Kurt F. Hirsekorn, Debashis Chakraborty
  • Publication number: 20140171296
    Abstract: Zero-valent silver compositions include 4-dimethylaminopyridine as stabilizers. The zero-valent silver and the 4-diemthylaminopyridine form stabilized nano-particles in solution. The zero-valent silver compositions may be used as catalysts in the metallization of non-conductive substrates.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 19, 2014
    Applicant: Dow Global Technologies LLC
    Inventor: Kurt F. HIRSEKORN
  • Publication number: 20140088329
    Abstract: Processes for the production of chlorinated and/or fluonnated propenes provide good product yield with advantageous impurity profiles in the crude product. Advantageously, the processes may be conducted at lower temperatures than 600° C., or less than 500° C., so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts or initiators may provide additional enhancements to conversion rates and selectivity, as may adjustments to the molar ratio of the reactants.
    Type: Application
    Filed: May 30, 2012
    Publication date: March 27, 2014
    Inventors: Max Tirtowidjojo, William J. Kruper, JR., Kurt F. Hirsekorn, Debashis Chakraborty
  • Patent number: 8581012
    Abstract: The present invention provides continuous, gas phase, free radical processes for the production of chlorinated and/or fluorinated propenes or higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes, wherein wherein at least a portion of any intermediate boiler by-products generated by the process are removed from the process.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: November 12, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Max M. Tirtowidjojo, Patrick H. Au-Yeung, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, Jr., Thomas U. Luebbe, Holger Meemann, Shirley S. Sexton, Peter Wenzel, Marcus Wobser
  • Patent number: 8581011
    Abstract: The present invention provides one-step processes for the production of chlorinated and/or fluorinated propenes. The processes provide good product yield with low, e.g., less than about 20%, or even less than 10%, concentrations of residues/by-products. Advantageously, the processes may be conducted at low temperatures than 500° C. so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts or initiators may provide additional enhancements to conversion rates and selectivity, as may adjustments to the molar ratio of the reactants.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: November 12, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Max M. Tirtowidjojo, Debashis Chakraborty, Juergen Eiffler, Kurt F. Hirsekorn, William J. Kruper, Jr.
  • Patent number: 8558041
    Abstract: The present invention provides isothermal multitube reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors utilize a feed mixture inlet temperature at least 20° C. different from a desired reaction temperature.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: October 15, 2013
    Assignee: Dow Global Technologies, LLC
    Inventors: Max M. Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, Jr., Thomas U. Luebbe, Avani M. Patel, Shirley S. Sexton, Peter Wenzel, Marcus Wobser
  • Patent number: 8519202
    Abstract: Produce methyl chloride and sulfur dioxide using a reactor with lanthanum oxychloride, and contacting the lanthanum oxychloride with methanesulfonyl chloride under conditions sufficient to convert a portion of the methanesulfonyl chloride to methyl chloride and sulfur dioxide.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: August 27, 2013
    Assignee: Dow Global Technologies LLC
    Inventor: Kurt F. Hirsekorn
  • Publication number: 20130006025
    Abstract: Produce methyl chloride and sulfur dioxide using a reactor with lanthanum oxychloride, and contacting the lanthanum oxychloride with methanesulfonyl chloride under conditions sufficient to convert a portion of the methanesulfonyl chloride to methyl chloride and sulfur dioxide.
    Type: Application
    Filed: February 25, 2011
    Publication date: January 3, 2013
    Inventor: Kurt F. Hirsekorn
  • Patent number: 8258353
    Abstract: The present invention provides one-step processes for the production of chlorinated and/or fluorinated propenes. The processes provide good product yield with low, e.g., less than about 20%, or even less than 10%, concentrations of residues/by-products. Advantageously, the processes may be conducted at low temperatures relative to conventional processes, so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts may provide enhancements to conversion rates and selectivity over those seen in conventional processes, as may adjustments to the molar ratio of the reactants.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: September 4, 2012
    Assignee: Dow Global Technologies, LLC
    Inventors: William J. Kruper, Jr., Max M. Tirtowidjojo, Kurt F. Hirsekorn, Debashis Chakraborty, Juergen Eiffler
  • Publication number: 20120116121
    Abstract: Produce a sulfo-chlorinated hydrocarbon using liquid sulfur dioxide, a chlorinating agent such as chlorine or sulfuryl chloride, and a metal complex catalyst, the catalyst being represented as LnM where L is at least one of an amine, phosphine, chloride or oxide, n is an integer within a range of from 1 to 6, and M is a metal selected from a group consisting of copper (Cu), ruthenium (Ru), iron (Fe), chromium (Cr), lanthanum (La), nickel (Ni), palladium (Pd), rhodium (Rh), rhenium (Re), molybdenum (Mo) and manganese (Mn).
    Type: Application
    Filed: July 28, 2010
    Publication date: May 10, 2012
    Applicant: Dow Global Technologies LLC
    Inventors: Kurt F. Hirsekorn, William Tenn, Peter N. Nickias
  • Publication number: 20110178343
    Abstract: The present invention provides one-step processes for the production of chlorinated and/or fluorinated propenes. The processes provide good product yield with low, e.g., less than about 20%, or even less than 10%, concentrations of residues/by-products. Advantageously, the processes may be conducted at low temperatures relative to conventional processes, so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts may provide enhancements to conversion rates and selectivity over those seen in conventional processes, as may adjustments to the molar ratio of the reactants.
    Type: Application
    Filed: April 20, 2010
    Publication date: July 21, 2011
    Applicant: DOW GLOBAL TECHNOLOGIES, INC.
    Inventors: William J. Kruper, JR., Max M. Tirtowidjojo, Kurt F. Hirsekorn, Debashis Chakraborty, Juergen Eiffler
  • Publication number: 20110087054
    Abstract: The present invention provides isothermal multitube reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors utilize a feed mixture inlet temperature at least 20° C. different from a desired reaction temperature.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 14, 2011
    Applicant: DOW GLOBAL TECHNOLOGIES
    Inventors: Max M. Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, JR., Thomas U. Luebbe, Avani M. Patel, Shirley S. Sexton, Peter Wenzel, Marcus Wobser
  • Publication number: 20110083955
    Abstract: The present invention provides one-step processes for the production of chlorinated and/or fluorinated propenes. The processes provide good product yield with low, e.g., less than about 20%, or even less than 10%, concentrations of residues/by-products. Advantageously, the processes may be conducted at low temperatures than 500° C. so that energy savings are provided, and/or at higher pressures so that high throughputs may also be realized. The use of catalysts or initiators may provide additional enhancements to conversion rates and selectivity, as may adjustments to the molar ratio of the reactants.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 14, 2011
    Applicant: DOW GLOBAL TECHNOLOGIES, INC
    Inventors: Max M. Tirtowidjojo, Debashis Chakraborty, Juergen Eiffler, Kurt F. Hirsekorn, William J. Kruper, JR.
  • Publication number: 20110087056
    Abstract: The present invention provides adiabatic plug flow reactors suitable for the production of chlorinated and/or fluorinated propene and higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes. The reactors comprise one or more designs that minimize the production of by-products at a desired conversion.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 14, 2011
    Applicant: DOW GLOBAL TECHNOLOGIES
    Inventors: Max M. Tirtowidjojo, Hua Bai, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, JR., Thomas U. Luebbe, Thomas J. Parsons, Avani Maulik Patel, Marcus Wobser
  • Publication number: 20110087055
    Abstract: The present invention provides continuous, gas phase, free radical processes for the production of chlorinated and/or fluorinated propenes or higher alkenes from the reaction of chlorinated and/or fluorinated alkanes and chlorinated and/or fluorinated alkenes, wherein wherein at least a portion of any intermediate boiler by-products generated by the process are removed from the process
    Type: Application
    Filed: October 8, 2010
    Publication date: April 14, 2011
    Applicant: DOW GLOBAL TECHNOLOGIES
    Inventors: Max M. Tirtowidjojo, Patrick H. Au-Yeung, Debashis Chakraborty, Juergen Eiffler, Heinz Groenewald, Kurt F. Hirsekorn, Manfred Kokott, William J. Kruper, JR., Thomas U. Luebbe, Holger Meeman, Shirley S. Sexton, Peter Wenzel, Marcus Wobser