Patents by Inventor Werner Obrecht

Werner Obrecht 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).

  • Microgel-containing vulcanizable composition based on hydrogenated nitrile rubber
    Publication number: 20120295047
    Abstract: A novel vulcanizable composition is provided, based on at least one hydrogenated nitrile rubber, on at least one peroxide, on at least one unsaturated carboxylic acid and/or salts thereof, and also on specific microgels. These vulcanizable compositions can be used to obtain vulcanized products which can in particular be used for drive belts, roll coverings, hoses and cables.
    Type: Application
    Filed: December 21, 2011
    Publication date: November 22, 2012
    Inventors: Werner OBRECHT, Claus WRANA
  • Microgel-containing thermoplastic elastomer composition
    Patent number: 8188187
    Abstract: The present invention relates to a composition comprising thermoplastic materials and crosslinked microgels which are not crosslinked by high-energy radiation, processes for its preparation, its use for the production of thermoplastically processable shaped articles and shaped articles produced from the composition.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: May 29, 2012
    Assignees: LANXESS Deutschland GmbH, Rhein Chemie Rheinau GmbH
    Inventors: Ludger Heiliger, Thomas Früh, Volker Müller, Heiko Tebbe, Werner Obrecht, Robert Hans Schuster, Martin Müller
  • PROCESS FOR DEGRADING NITRILE RUBBERS IN THE PRESENCE OF CATALYSTS HAVING AN INCREASED ACTIVITY
    Publication number: 20120116026
    Abstract: A process of degrading nitrile rubbers comprises subjecting them to a metathesis reaction in the presence of specific catalysts with increased activity.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 10, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Werner Obrecht, Christopher Ong, Julia Maria Müller, Oskar Nuyken
  • Rubber mixtures with functionalized diene rubbers and with microgels, a production process, and use of the mixtures
    Patent number: 8173741
    Abstract: The present invention relates to rubber mixtures with functionalized diene rubbers and with microgels, to a production process, and to the use of the mixtures for the production of low-abrasion motor-vehicle tires which have wet-slip resistance and which have low rolling resistance.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: May 8, 2012
    Assignee: LANXESS Deutschland GmbH
    Inventors: Norbert Steinhauser, Werner Obrecht, David Hardy, Thomas Groβ
  • STORAGE-STABLE, HYDROXY-MODIFIED MICROGEL LATICES
    Publication number: 20120108724
    Abstract: A composition is described, encompassing a constituent selected from the group consisting of a modified resin acid (I), a fatty acid (II) and a mixture composed of a modified resin acid (I) and of a fatty acid (II), where the degree of neutralisation of the constituent is from 104 to 165%. Its use for the production of microgels is also described.
    Type: Application
    Filed: January 11, 2012
    Publication date: May 3, 2012
    Applicant: LANXESS Deutschland GmbH
    Inventor: Werner Obrecht
  • METHOD FOR PRODUCING POLYMERIC SOLIDS
    Publication number: 20120101216
    Abstract: The invention relates to a method for producing polymeric solids free of auxiliary emulators starting from polymer latices (dispersion), wherein a polymer dispersion with a starting ph-value greater than 9 is set to a ph-value of 6 to 9 by adding gaseous carbon dioxide and the polymer dispersion is subsequently coagulated by shearing and/or freezing.
    Type: Application
    Filed: March 17, 2010
    Publication date: April 26, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Dirk Achten, Peter Kueker, Jürgen Kempkes, Bianka Lorenz, Werner Obrecht, Annika Stobrawe
  • Storage-stable, hydroxy-modified microgel latices
    Patent number: 8119728
    Abstract: A composition is described, encompassing a constituent selected from the group consisting of a modified resin acid (I), a fatty acid (II) and a mixture composed of a modified resin acid (I) and of a fatty acid (II), where the degree of neutralization of the constituent is from 104 to 165%. Its use for the production of microgels is also described.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: February 21, 2012
    Assignee: LANXESS Deutschland GmbH
    Inventor: Werner Obrecht
  • 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
  • RUBBER MIXTURES CONTAINING SILANE AND HAVING POSSIBLY FUNCTIONALIZED DIENE RUBBERS AND MICROGELS, A METHOD FOR THE PRODUCTION THEREOF, AND USE THEREOF
    Publication number: 20120041129
    Abstract: The invention relates to rubber mixtures containing silane and having possibly functionalized diene rubbers and microgels, to a method for the production thereof, and to the use thereof to produce wet slipping resistant and low-rolling resistance motor vehicle tire treads having high abrasion resistance.
    Type: Application
    Filed: January 19, 2010
    Publication date: February 16, 2012
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Norbert Steinhauser, Werner Obrecht, David Hardy, Thomas Gross
  • Methods for producing rubber mixtures
    Patent number: 8084547
    Abstract: The invention relates to processes for the production of microgel-containing rubber mixtures, to rubber mixtures obtainable by the processes, to processes for the production of vulcanizates, and also to vulcanizates after the vulcanization process, in particular in the form of tires, parts of tires, or industrial rubber items.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: December 27, 2011
    Assignee: LANXESS Deutschland GmbH
    Inventor: Werner Obrecht
  • Hydrolysis-resistant polyamide-elastomer mixtures, molded articles produced therefrom and their use
    Publication number: 20110229672
    Abstract: The invention relates to polyamide-elastomer mixtures with an improved hydrolysis resistance. In this case, the elastomer is present in particular in the form of a microgel. The polyamide-elastomer mixtures according to the invention can be processed into molded articles that are used, for example, in the automobile industry, in particular as media-conducting conduits.
    Type: Application
    Filed: February 6, 2009
    Publication date: September 22, 2011
    Inventors: Botho Hoffmann, Georg Stöppelmann, Werner Obrecht, Thomas Früh, Robert Hans Schuster, Clara Antonia Rozin
  • CARBON NANOTUBES AND ORGANIC MEDIA CONTAINING MICROGELS
    Publication number: 20110224357
    Abstract: The invention relates to a composition containing at least one microgel, at least one carbon nanotube and at least one organic medium. Said organic medium can be cross-linked or non cross-linked.
    Type: Application
    Filed: May 20, 2009
    Publication date: September 15, 2011
    Applicants: LANXESS DEUTSCHLAND GMBH, BAYER MATERIALSCIENCE AG
    Inventors: Torsten Ziser, Thomas Früh, Werner Obrecht, Reiner Rudolf, Sigurd Buchholz, Volker Michele, Leslaw Mleczko, Christian Münnich, Aurel Wolf, Daniel Gordon Duff
  • Nitrile rubbers which optionally contain alkylthio terminal groups and which are optionally hydrogenated
    Publication number: 20110123747
    Abstract: An improved polymerization and process method allows the production of special nitrile rubbers which are characterized by a specific anion content and an excellent storage stability and allow a particularly good vulcanization rate and moreover result in vulcanized materials that have advantageous properties, especially with regard to the contact with metal components of molded parts based on said vulcanized materials.
    Type: Application
    Filed: January 16, 2009
    Publication date: May 26, 2011
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Werner Obrecht, Rolf Josten, Michael Klimpel
  • Nitrile rubbers which optionally contain alkylthio terminal groups and which are optionally hydrogenated
    Publication number: 20110123748
    Abstract: An improved polymerization and processing method allows the production of special nitrile rubbers which are characterized by a specific cation content which leads to an excellent storage stability and particularly good vulcanization rate and moreover results in vulcanized materials that have advantageous properties.
    Type: Application
    Filed: January 16, 2009
    Publication date: May 26, 2011
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventor: Werner Obrecht
  • Microgel-containing vulcanisable composition
    Patent number: 7947782
    Abstract: The present invention concerns a vulcanizable composition, vulcanized products produced from it, and their use in particular in the production of golf balls or roll coverings.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: May 24, 2011
    Assignees: Rhein Chemie Rheinau GmbH, LANXESS Deutschland GmbH, LANXESS Inc.
    Inventors: Judy E. Hannay, 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
  • GAS DIFFUSION ELECTRODES COMPRISING FUNCTIONALISED NANOPARTICLES
    Publication number: 20110091788
    Abstract: The invention relates to a gas diffusion electrode for polymer electrolyte fuel cells having a working temperature of up to 250° C., comprising a plurality of gas-permeable electroconductive layers having at least one gas diffusion layer and one catalyst layer. The catalyst layer contains particles of an average particle diameter in the nanometer range, said particles containing ionogenic groups. The invention also relates to the production of said gas diffusion electrode and to the use of same in high-temperature polymer electrolyte membrane fuel cells.
    Type: Application
    Filed: December 14, 2010
    Publication date: April 21, 2011
    Applicants: Elcomax GmbH, Lanxess Deutschland GmbH, Rhein Chemie Rheinau GmbH
    Inventors: Torsten Ziser, Thomas Früh, Domnik Bayer, Werner Obrecht, Dieter Melzner, Annette Reiche, Oliver Gronwald
  • Nitrile rubbers
    Patent number: 7923518
    Abstract: The present application provides novel nitrile rubbers comprising repeating units of at least one ?,?-unsaturated nitrile, at least one conjugated diene and optionally one or more further copolymerizable monomers which nitrile rubbers are distinguished by a specific calcium content as well as a specific chlorine content and dispose of specific thio end groups. Additionally, an improved polymerization and work-up process is provided to produce the aforementioned nitrile rubbers.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: April 12, 2011
    Assignee: LANXESS Deutschland GmbH
    Inventor: Werner Obrecht
  • PROCESS FOR REACTING CHEMICAL COMPOUNDS IN THE PRESENCE OF CATALYST SYSTEMS
    Publication number: 20110077360
    Abstract: New catalyst systems for metathesis reactions, in particular for the metathesis of nitrile rubber, are provided.
    Type: Application
    Filed: December 7, 2010
    Publication date: March 31, 2011
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Werner Obrecht, Julia Maria Müller, Oskar Nuyken
  • Nitrile rubbers which optionally contain alkylthio terminal groups and which are optionally hydrogenated
    Publication number: 20110059279
    Abstract: An improved polymerization and processing method allows the production of special nitrile rubbers which are characterized by a specific cation content which leads to an excellent storage stability and particularly good vulcanization rate and moreover results in vulcanized materials that have advantageous properties, especially with regard to the contact with water or water-containing media of molded parts based on said vulcanized materials.
    Type: Application
    Filed: January 16, 2009
    Publication date: March 10, 2011
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventor: Werner Obrecht