Patents by Inventor Karl-Otto Heilmann

Karl-Otto Heilmann 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).

  • Method for producing blends consisting of polystyrene and of a cross-linked polyvinyl pyrrolidone having a reduced styrene residual monomer content
    Patent number: 7868093
    Abstract: Process for removal of residual styrene monomers from polystyrene and from blends comprising water-insoluble, crosslinked polyvinylpyrrolidone, via treatment with water, which comprises carrying out the treatment on a particulate solid blend.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: January 11, 2011
    Assignee: BASF SE
    Inventors: Klemens Mathauer, Marianna Pierobon, Tobias Petsch, Karl-Otto Heilmann, Michael Kerber, Robert Bayer
  • Method For Producing Blends Consisting Of Polystyrene And Of A Cross-Linked Polyvinyl Pyrrolidone Having A Reducid Styrene Residual Monomer Content
    Publication number: 20080146739
    Abstract: Process for removal of residual styrene monomers from polystyrene and from blends comprising water-insoluble, crosslinked polyvinylpyrrolidone, via treatment with water, which comprises carrying out the treatment on a particulate solid blend.
    Type: Application
    Filed: March 14, 2006
    Publication date: June 19, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Klemens Mathauer, Marianna Pierobon, Tobias Petsch, Karl-Otto Heilmann, Michael Kerber, Robert Bayer
  • Biodegradable solid preparation of a phytopathologicalagent with delayed active substance release
    Publication number: 20040259736
    Abstract: The present invention relates to a method for the preparation of a solid formulation of a slow-release crop protection product, which comprises carrying out a melt extrusion of a composition comprising 0.1 to 80% by weight of at least one fungicidal active ingredient, 0 to 80% by weight of at least one herbicidal, acaricidal, insecticidal or growth-regulatory active ingredient, 3 to 80% by weight of a thermoplastic, water-insoluble polymer from the group of the polylactides, 0 to 80% by weight of at least one thermoplastic water-insoluble polymer, 10 to 80% by weight of at least one mineral filler and 0 to 20% by weight of inorganic or organic additives, and subsequently shaping the extrudate, and to the solid formulations preparable by this method.
    Type: Application
    Filed: March 23, 2004
    Publication date: December 23, 2004
    Inventors: Reinhold Dieing, Frank Dietsche, Marcos Gomez, Thomas Kessler, Simone Schillo, Karl-Heinrich Schneider, Karl-Otto Heilmann