Patents by Inventor Wilfried Lövenich

Wilfried Lövenich 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: 9087994
    Abstract: Described is a complex comprising a polythiophene and a sulphonated synthetic rubber. Also described is a process for producing complexes, the complexes obtained by this process, a composition, a layer structure, a process for producing the layer structure, the layer structure obtained by this process, electronic components, and the use of a composition.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: July 21, 2015
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Wilfried Lövenich, Arnulf Scheel, Knud Reuter, Andreas Elschner
  • Patent number: 9053839
    Abstract: The present invention relates to a method for producing a composition comprising polythiophene, comprising the method steps: I) provision of a composition Z1 comprising thiophene monomers and an oxidising agent; II) oxidative polymerisation of the thiophene monomers by reducing the oxidising agent to a reduction product and oxidation of the thiophene monomer, to form a polythiophene and a composition Z2 comprising the reduction product; III) at least partial removal of the reduction product from the composition Z2 obtained in method step II), to obtain a composition Z3; wherein it is ensured that, following completion of method step III), the content of non-polymerised thiophene monomer in the composition Z3 is in the range from 1 ppm to 100 ppm, based on the total weight of the composition Z3.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: June 9, 2015
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventor: Wilfried Lövenich
  • Patent number: 8721929
    Abstract: The invention relates to novel polythiophene-polyanion complexes which are soluble or dispersible in nonpolar organic solvents, and to the use thereof.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: May 13, 2014
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Wilfried Loevenich, Stephan Kirchmeyer, Andreas Elschner, Knud Reuter, Klaus Müllen, Markus Klapper, Kevin Müller
  • Patent number: 8696768
    Abstract: The invention relates to a process for producing electrolyte capacitors with high capacitances and low equivalent series resistance, to electrolyte capacitors produced by this process and to the use of such electrolyte capacitors.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: April 15, 2014
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Udo Merker, Wilfried Loevenich
  • Patent number: 8699208
    Abstract: The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current, electrolyte capacitors produced by this process and the use of such electrolyte capacitors.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: April 15, 2014
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Udo Merker, Wilfried Lövenich, Klaus Wussow, Ralf Tillmann
  • Patent number: 8663505
    Abstract: The present invention relates to novel processes for preparing an aqueous or nonaqueous dispersion or solution comprising at least one conductive polymer and at least one polyanion, characterized in that the polymerization is performed at a pressure below atmospheric pressure, to aqueous or nonaqueous dispersions or solutions prepared by this process and to the use thereof.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: March 4, 2014
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Wilfried Loevenich, Rudolf Hill, Andreas Elschner, Friedrich Jonas, Udo Guntermann
  • Publication number: 20140027746
    Abstract: The present invention relates to compounds of the general formula (I) The present invention also relates to a process for the preparation of such compounds, the compounds obtainable by this process, the use of these compounds, semiconducting layers and electronic components.
    Type: Application
    Filed: January 12, 2012
    Publication date: January 30, 2014
    Applicant: Heraeus Precious Metals GMBH & Co. KG
    Inventors: Eva Nutz, Timo Meyer-Friedrichsen, Andreas Elschner, Wilfried Lövenich, Sergei Anatolievich Ponomarenko, Juriy N. Luponosow
  • Publication number: 20130270537
    Abstract: Described is a complex comprising a polythiophene and a sulphonated synthetic rubber.
    Type: Application
    Filed: November 2, 2011
    Publication date: October 17, 2013
    Applicant: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Wilfried Lövenich, Arnulf Scheel, Knud Reuler, Andreas Eischner
  • Publication number: 20130261261
    Abstract: The present invention relates to a method for producing a composition comprising polythiophene, comprising the method steps: I) provision of a composition Z1 comprising thiophene monomers and an oxidising agent; II) oxidative polymerisation of the thiophene monomers by reducing the oxidising agent to a reduction product and oxidation of the thiophene monomer, to form a polythiophene and a composition Z2 comprising the reduction product; III) at least partial removal of the reduction product from the composition Z2 obtained in method step II), to obtain a composition Z3; wherein it is ensured that, following completion of method step III), the content of non-polymerised thiophene monomer in the composition Z3 is in the range from 1 ppm to 100 ppm, based on the total weight of the composition Z3.
    Type: Application
    Filed: October 7, 2011
    Publication date: October 3, 2013
    Applicant: Heraeus Precious Metals GmbH & Co. KG
    Inventor: Wilfried Lövenich
  • Patent number: 8334331
    Abstract: The invention relates to compositions which include: (a) a polythiophene containing repeating units represented by the following general formula (I), wherein X represents, for example, —CH2—CH(CH2—O—(CH2)4SO3?H+)—; and (b) further polymers, that are different than polythiophene (a), and which contain SO3? M+ or COO?M+ groups. Also disclosed are electroluminescing (EL) arrangements that contain hole-injecting layers which include such compositions.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: December 18, 2012
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Andreas Elschner, Knud Reuter, Peter Wilfried Lövenich
  • Patent number: 8313538
    Abstract: The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current for high nominal voltages, electrolyte capacitors produced by this process and the use of such electrolyte capacitors.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: November 20, 2012
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Udo Merker, Wilfried Lövenich, Klaus Wussow
  • Patent number: 8252889
    Abstract: The invention relates to formulations comprising polythiophenes A) comprising at least one polythiophene containing recurring units of the general formula (I-a) and/or (I-b) and at least two further polymers, the use thereof and electroluminescent arrangements comprising hole-injecting layers comprising these formulations.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: August 28, 2012
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Andreas Elschner, Knud Reuter, Peter Wilfried Loevenich
  • Publication number: 20120175565
    Abstract: The present invention relates to coatings containing conductive polymers and anhydric compounds, to the production and use thereof and also to dispersions for producing coatings of this type.
    Type: Application
    Filed: August 5, 2010
    Publication date: July 12, 2012
    Applicant: Heraeus Precious Metals GmbH & Co, KG
    Inventors: Wilfried Lövenich, Rudolf Hill
  • Publication number: 20120165467
    Abstract: The invention relates to novel polyelectrolyte complexes of a functionalised polysulphone and a conductive polymer and to the use thereof.
    Type: Application
    Filed: June 30, 2010
    Publication date: June 28, 2012
    Inventors: Wilfried Lövenich, Andreas Elschner
  • Publication number: 20120075772
    Abstract: The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current, electrolyte capacitors produced by this process and the use of such electrolyte capacitors.
    Type: Application
    Filed: October 6, 2011
    Publication date: March 29, 2012
    Applicant: H.C. Starck GmbH
    Inventors: Udo Merker, Wilfried Lövenich, Klaus Wussow, Ralph Tillmann
  • Patent number: 8058135
    Abstract: The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current, electrolyte capacitors produced by this process and the use of such electrolyte capacitors.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: November 15, 2011
    Assignee: H. C. Starck GmbH
    Inventors: Udo Merker, Wilfried Lövenich, Klaus Wussow, Ralph Tillmann
  • Publication number: 20110210321
    Abstract: The invention concerns a process for producing transparent multi-layer electrodes from conductive polymers, electrodes produced by this process and their use in electro-optical structures.
    Type: Application
    Filed: May 9, 2011
    Publication date: September 1, 2011
    Inventors: Andreas Elschner, Peter Wilfried Loevenich, Friedrich Jonas
  • Publication number: 20110168946
    Abstract: The invention relates to novel polythiophene-polyanion complexes which are soluble or dispersible in nonpolar organic solvents, and to the use thereof.
    Type: Application
    Filed: April 20, 2009
    Publication date: July 14, 2011
    Applicant: H.C. Starck Clevios GMBH
    Inventors: Wilfried Loevenich, Stephan Kirchmeyer, Andreas Elschner, Knud Reuler, Klaus Müllen, Markus Klapper, Kavin Müller
  • Patent number: 7973180
    Abstract: The present invention provides a method for the production of an aqueous dispersion containing an electroconductive polymer component which enables electroconductive thin films which are outstanding in their transparency and electroconductivity to be formed, together with the aqueous dispersion obtained by said method. This method includes a stage in which a 3,4-dialkoxythiophene is polymerized in an aqueous solvent using an oxidizing agent in the presence of a polyanion and, in this stage, said oxidizing agent is added by the dropwise addition of a solution or dispersion containing said oxidizing agent to the reaction solution or, alternatively, in the polymerization stage, the alkali metal ion concentration in the reaction liquid is maintained at no more than 400 ppm.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: July 5, 2011
    Assignee: H.C. Starck GmbH
    Inventors: Yoshiyuki Morita, Yasuo Chikusa, Kyoko Miyanishi, Stephan Kirchmeyer, Wilfried Loevenich
  • Publication number: 20110128675
    Abstract: The invention relates to a process for producing electrolyte capacitors with high capacitances and low equivalent series resistance, to electrolyte capacitors produced by this process and to the use of such electrolyte capacitors.
    Type: Application
    Filed: April 22, 2009
    Publication date: June 2, 2011
    Applicant: H.C. Starck Clevios GmbH
    Inventors: Udo Merker, Wilfried Loevenich