Patents by Inventor Achim Feßenbecker

Achim Feßenbecker 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).

  • Use of crosslinked microgels for modifying the temperature-dependent behavior of non-crosslinkable organic media
    Patent number: 8119581
    Abstract: The invention relates to the use of microgels for modifying the temperature behavior of non-crosslinkable organic media, in particular in high temperature applications at least about 100° C., for example in engine oils, gear oils, etc.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: February 21, 2012
    Assignees: Rhein Chemie Rheinau GmbH, LANXESS Deutschland GmbH
    Inventors: Achim Fessenbecker, Patrick Galda, Torsten Ziser, Thomas Früh, Werner Obrecht
  • Compositions that contain microgels and thickening agents
    Patent number: 7939594
    Abstract: The invention provides a composition that contains at least one specific non-crosslinkable organic medium at least one microgel and at least one thickening agent, a process for the preparation thereof and uses of the compositions.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: May 10, 2011
    Assignees: Rhein Chemie Rheinau GmbH, LANXESS Deutschland GmbH
    Inventors: Werner Obrecht, Torsten Ziser, Thomas Früh, Patrick Galda, Achim Fessenbecker
  • Use of crosslinked microgels for modifying the temperature-dependent behavior of non-crosslinkable organic media
    Publication number: 20060275690
    Abstract: The invention relates to the use of microgels for modifying the temperature behavior of non-crosslinkable organic media, in particular in high temperature applications at least about 100° C., for example in engine oils, gear oils, etc.
    Type: Application
    Filed: March 13, 2006
    Publication date: December 7, 2006
    Inventors: Achim Fessenbecker, Patrick Galda, Torsten Ziser, Thomas Fruh, Werner Obrecht
  • Microgels combined with functional additives
    Publication number: 20060275691
    Abstract: The invention relates to a composition comprising at least one microgel and at least one functional additive, to processes for the preparation thereof, to uses of the compositions, and to microgel-containing polymers, rubbers, lubricants, coatings, etc. prepared therefrom.
    Type: Application
    Filed: March 13, 2006
    Publication date: December 7, 2006
    Inventors: Achim Fessenbecker, Patrick Galda, Torsten Ziser, Thomas Fruh, Gunther Steppan, Werner Obrecht
  • Compositions that contain microgels and thickening agents
    Publication number: 20060252858
    Abstract: The invention provides a composition that contains at least one specific non-crosslinkable organic medium at least one microgel and at least one thickening agent, a process for the preparation thereof and uses of the compositions.
    Type: Application
    Filed: March 13, 2006
    Publication date: November 9, 2006
    Inventors: Werner Obrecht, Torsten Ziser, Thomas Fruh, Patrick Galda, Achim Fessenbecker
  • Process for the preparation of pulverulent (poly)ureas by means of spray drying
    Publication number: 20060052261
    Abstract: The present invention relates to a process for the preparation of (poly)urea powders, novel (poly)urea powders, compositions comprising them and the use thereof as thickening agents, in particular in lubricants, such as so-called polyurea greases.
    Type: Application
    Filed: August 5, 2005
    Publication date: March 9, 2006
    Inventors: Bernd Kray, Wilhelm Laufer, Patrick Galda, Achim Fessenbecker
  • Process for inhibiting the emission of hydrogen sulfide and/or mercaptans from sulfurized organic compounds
    Patent number: 6528462
    Abstract: The present invention provides a process for inhibiting the emission of hydrogen sulfide and/or mercaptans from sulfurized organic compounds, which generally contain a high proportion of sulfur by treating the sulfurized organic compounds with organic hydroperoxides.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: March 4, 2003
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Ludger Heiliger, Alfred Pauli, Joachim Hegmann, Michael Wühr, Achim Fessenbecker, Kurt Schilling
  • Stabilized lubricant base material
    Patent number: 5614483
    Abstract: Lubricant base materials containing ester groups may be stabilised by adding a small quantity of carbodiimides and the service life of lubricants manufactured therefrom may be decisively extended.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: March 25, 1997
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Achim Fessenbecker, Joachim Korff, Hans-Jurgen Kress, Volker Muller
  • Process for separating mixtures of nitrobenzaldehyde isomers
    Patent number: 5567854
    Abstract: 2- and 3-Nitrobenzaldehydes suitable for use as intermediates for the preparation of pharmaceuticals are obtained in a simple manner and without risk of uncontrolled decompositions by distilling mixtures of nitrobenzaldehyde isomers at bottom temperatures of at most 200.degree. C. in the presence of monomeric and/or polymeric aromatic amines and/or phenols and/or N- and S-containing phenothiazines.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: October 22, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfram Kissener, Herbert Emde, Achim Fessenbecker
  • Corrosion protection additives based on epoxides
    Patent number: 5368776
    Abstract: A method for improving the corrosion inhibition of lubricating oils especially those of vegetable origin which comprises adding an efficient amount of the reaction product of an epoxidized fatty acid ester, especially an epoxidized methyl ester of an unsaturated fatty acid and a sulphonic acid and a process for producing these reaction products.
    Type: Grant
    Filed: October 20, 1993
    Date of Patent: November 29, 1994
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Volker Schafer, Robert Kohler, Alfred Pauli, Achim Fessenbecker