Patents by Inventor Albrecht Daweritz

Albrecht Daweritz 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).

  • Polymerization reactor provided with coating that suppresses polymer deposit formation
    Patent number: 4880885
    Abstract: In a process of polymerizing ethylenically unsaturated compounds by polymerization of ethylenically unsaturated monomers in the presence of a free radical-forming initiator system and customary protective colloids and/or emulsifiers and optional known additives in a reactor whose surfaces contact the reaction components, the improvement comprising providing the reactor surfaces with a coating that at least suppresses polymer deposit formation without effecting the color and quality of the polymer.
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: November 14, 1989
    Assignee: Wacker-Chemie GmbH
    Inventors: Willi Kleine, Werner Frey, Albrecht Daweritz
  • Method of inhibiting polymer deposition on reactor walls during free-radical polymerization
    Patent number: 4661569
    Abstract: In a process of polymerizing ethylenically unsaturated compounds by polymerization of ethylenically unsaturated monomers in the presence of a free radical-forming initiator system and optionally customary protective colloids and/or emulsifiers and optional known additives in a reactor whose surfaces contact the reaction components, the improvement comprising providing the reactor surfaces with a coating that at least suppresses polymer deposit formation without effecting the color and quality of the polymer.
    Type: Grant
    Filed: February 12, 1985
    Date of Patent: April 28, 1987
    Assignee: Wacker-Chemie GmbH
    Inventors: Willi Kleine, Werner Frey, Albrecht Daweritz