Patents by Inventor Michael Riesen

Michael Riesen 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 AND APPARATUS FOR PREPARING BIODEGRADABLE POLYESTERS
    Publication number: 20200223980
    Abstract: There is described a process for preparing a biodegradable polyester from an aromatic dicarboxylic acid, an aliphatic dicarboxylic acid and a diol where in a first reaction step the aromatic acid is esterified with the diol, and in a second reaction step the aliphatic acid is added to the reaction mixture. Furthermore, there is described an apparatus for carrying out this process.
    Type: Application
    Filed: July 6, 2017
    Publication date: July 16, 2020
    Inventors: Michael RIESEN, Rainer LINKE, Eckhad Seidel, Reza Sarbandi
  • PROCESS FOR PREPARING POLYESTERS BY USING AN ADDITIVE
    Publication number: 20200102421
    Abstract: The application relates to a process for reducing the amount of hydroxyl-end-groups of polyesters, wherein the polyester is prepared from at least one dicarboxylic acid and at least one dihydroxy alcohol, and at least one additive selected from the group consisting of dicarboxylic acid anhydride and/or monoisocyanate is added during and/or after the process of preparing the polyester.
    Type: Application
    Filed: July 6, 2017
    Publication date: April 2, 2020
    Inventors: Holger BACHMANN, Rainer LINKE, Eckhad Seidel, Michael Riesen, Reza Sarbandi