Patents by Inventor Michael H Valkenberg

Michael H Valkenberg 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).

  • Primary allylic alcohol and Ag
    Patent number: 8536341
    Abstract: The invention relates to a process of reacting a primary allylic alcohol with a compound containing a) a metal selected from the group consisting of Ag, Au, Ce, Mn, Ni, Ru, Re, Zn and Co preferably Ag and b) an oxidant like TEMPO (2,2?,6,6?-tetra-methylpiperidin-1-oxyl) or its derivates and c) a co-oxidants selected from the group of peroxodisulfates (PDS), H2SO5, H2O2, NaOCl, O2, KOCl, and air.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: September 17, 2013
    Assignee: DSM IP Assets B.V.
    Inventors: Werner Bonrath, Jean-Francois Eckhard, Manfred L. Eggersdorfer, Ramona Hinze, Wolfgang F. Hölderich, Michael H. Valkenberg
  • PRIMARY ALLYLIC ALCOHOL AND AG
    Publication number: 20110015412
    Abstract: The invention relates to a process of reacting a primary allylic alcohol with a compound containing a) a metal selected from the group consisting of Ag, Au, Ce, Mn, Ni, Ru, Re, Zn and Co preferably Ag and b) an oxidant like TEMPO (2,2?,6,6?-tetra-methylpiperidin-1-oxyl) or its derivates and c) a co-oxidants selected from the group of peroxodisulfates (PDS), H2505, H2O2, NaOCl, O2, KOCl, and air.
    Type: Application
    Filed: February 15, 2008
    Publication date: January 20, 2011
    Applicant: DSM IP ASSETS B.V.
    Inventors: Werner Bonrath, Jean-Francois Eckhardt, Manfred L. Eggersdorfer, Ramona Hinze, Wolfgang F. Hölderich, Michael H. Valkenberg
  • Immobilised ionic liquids
    Patent number: 6969693
    Abstract: Ionic liquids are immobilized on a functionalized support which carries or contains one component of the ionic liquid, or a precursor to such a component. The ionic liquid may be immobilized via the anion by treating a support with an anion source, e.g., an inorganic halide, before the ionic liquid is applied or formed. Alternatively, the ionic liquid may be immobilized by having the cation covalently bound to the support, e.g., through silyl groups, or incorporated in the support by synthesizing the support in the presence of a suitable base. The immobilized ionic liquids are of use as catalysts, for example, for the Friedel-Crafts reaction, such as alkylation reaction.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: November 29, 2005
    Assignee: Johnson Matthey PLC
    Inventors: Emmanuelle Sauvage, Michael H Valkenberg, Christovao P De Castro-Moreira, Wolfgang F Hoelderich
  • Immobilised ionic liquids
    Publication number: 20020169071
    Abstract: Ionic liquids are immobilised on a functionalised support which carries or contains one component of the ionic liquid, or a precursor to such a component. The ionic liquid may be immobilised via the anion by treating a support with an anion source, e.g., an inorganic halide, before the ionic liquid is applied or formed. Alternatively, the ionic liquid may be immobilised by having the cation covalently bound to the support, e.g., through silyl groups, or incorporated in the support by synthesising the support in the presence of a suitable base.
    Type: Application
    Filed: May 6, 2002
    Publication date: November 14, 2002
    Inventors: Emmanuelle Sauvage, Michael H. Valkenberg, Christovao P. De Castro-Moreira, Wolfgang F. Hoelderich