Patents by Inventor Floris Jacobus Parlevliet

Floris Jacobus Parlevliet 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).

  • Process for regenerating Pd catalysts
    Patent number: 6921731
    Abstract: Process for regenerating a Pd catalyst after a homogeneously catalyzed C—C coupling reaction in which the Pd catalyst precipitates, is separated from the reaction mixture and subsequently treated with I2 or Br2. The Pd catalyst can then be used in a subsequent reaction run. Preferably between 1 and 3 mole equivalents of I2 or Br2, relative to the quantity of Pd catalyst is used The C—C coupling reaction is preferably carried out in the presence of a support material. The C—C coupling reaction may be for example a Heck reaction, a Suzuki reaction or a cross-coupling reaction.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: July 26, 2005
    Assignee: DSM IP Assets B.V.
    Inventors: Floris Jacobus Parlevliet, Johannes Gerardus Vries De, Andreas Hendrikus Maria Vries De
  • Process for regenerating pd catalysts
    Publication number: 20040029714
    Abstract: Process for regenerating a Pd catalyst after a homogeneously catalyzed C—C coupling reaction in which the Pd catalyst precipitates, is separated from the reaction mixture and subsequently treated with I2 or Br2. The Pd catalyst can then be used in a subsequent reaction run.
    Type: Application
    Filed: December 3, 2002
    Publication date: February 12, 2004
    Inventors: Floris Jacobus Parlevliet, Johannes Gerardus Vries De, Andreas Hendrikus Maria Vries De