Patents by Inventor Harald Draeger

Harald Draeger 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).

  • Depot polymerization starter beads
    Patent number: 6960638
    Abstract: The invention relates to polymer beads having a high content of diacyl peroxides. A prolongation of the pot life in reaction resins based on high-boiling methacrylate esters is achieved due to this high content of peroxides.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: November 1, 2005
    Assignee: Roehm GmbH & Co. KG
    Inventors: Peter Quis, Heike Heeb, Helmut Schwind, Harald Draeger
  • Depot polymerization starter beads
    Publication number: 20050090604
    Abstract: The invention relates to polymer beads having a high content of diacyl peroxides. A prolongation of the pot life in reaction resins based on high-boiling methacrylate esters is achieved due to this high content of peroxides.
    Type: Application
    Filed: November 16, 2004
    Publication date: April 28, 2005
    Applicant: ROEHM GMBH & CO. KG
    Inventors: Peter Quis, Heike Heeb, Helmut Schwind, Harald Draeger
  • Depot polymerization starter beads
    Publication number: 20040198939
    Abstract: The invention relates to polymer beads having a high content of diacyl peroxides. A prolongation of the pot life in reaction resins based on high-boiling methacrylate esters is achieved due to this high content of peroxides.
    Type: Application
    Filed: February 6, 2004
    Publication date: October 7, 2004
    Inventors: Peter Quis, Heike Heeb, Helmut Schwind, Harald Draeger