Patents by Inventor Jurgen Kintrup

Jurgen Kintrup 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).

  • PROCESSES FOR THE PREPARATION OF ISOCYANATES
    Publication number: 20070269365
    Abstract: Processes are described which comprise: (a) reacting chlorine with carbon monoxide to form phosgene; (b) reacting the phosgene with at least one organic amine to form at least one isocyanate and hydrogen chloride; (c) separating the hydrogen chloride; (d) oxidizing the hydrogen chloride with oxygen in a gas phase to form additional chlorine; and (e) recycling at least a portion of the additional chlorine to the reaction of the chlorine and the carbon monoxide; wherein the oxidation of the hydrogen chloride is initiated via a high energy source which may be selected from electron-exciting radiation, ionizing radiation, a gas discharge, a plasma, and combinations thereof.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 22, 2007
    Applicant: Bayer Material Science AG
    Inventors: Rainer Weber, Jurgen Kintrup, Andreas Bulan, Alfred Soppe, Martin Weiss
  • Process and catalyst for preparing alcohols
    Patent number: 7119237
    Abstract: Alcohols prepared by reacting carboxylic acids and/or carboxylic esters with hydrogen in the presence of a special catalyst.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: October 10, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Prinz, Jürgen Kintrup, Andreas Schulze Tilling, Jörg-Dietrich Jentsch, Gerald John, Hans-Jürgen Grob, Guido Giffels
  • Process and catalyst for preparing alcohols
    Publication number: 20030187309
    Abstract: Alcohols prepared by reacting carboxylic acids and/or carboxylic esters with hydrogen in the presence of a special catalyst.
    Type: Application
    Filed: February 19, 2003
    Publication date: October 2, 2003
    Inventors: Thomas Prinz, Jurgen Kintrup, Andreas Schulze Tilling, Jorg-Dietrich Jentsch, Gerald John, Hans-Jurgen Gross, Guido giffels
  • Ruthenium catalyst for the hydrogenation of diaminodiphenylmethane to diaminodicyclohexylmethane
    Publication number: 20020183556
    Abstract: The invention relates to ruthenium catalysts for the hydrogenation of diaminodiphenylmethane to diaminodicyclohexylmethane, particularly with a proportion of trans,trans-4,4′-diaminodicyclohexylmethane of from 17 to 24%, in a continuously operated suspension reactor, where ruthenium is applied to a support of high-purity aluminum oxide that preferably has a sodium content of less than 0.05% by weight, a particle size of from 5 to 150 &mgr;m, and a BET specific surface area of from 30 to 300 m2/g.
    Type: Application
    Filed: April 15, 2002
    Publication date: December 5, 2002
    Inventors: Andreas Schulze Tilling, Thomas Prinz, Jurgen Kintrup