Patents by Inventor Erich Bader

Erich Bader 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 polymerizing acrylic acid with inhibitor and retarder present and the use of resultant polyacrylic acids
    Patent number: 3948867
    Abstract: Process of manufacturing bead-shaped polymers from acrylic acid by the polymerization of monomeric acrylic acid under slow addition of the monomer to a powerfully stirred, boiling hydrophobic reaction medium and in the presence of a free radical catalyst as well as polymerization regulator and/or cross-linking agents which comprises carrying out the polymerization in the presence of a polymerization inhibitor and/or polymerization retarder.
    Type: Grant
    Filed: August 15, 1974
    Date of Patent: April 6, 1976
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Erich Bader, Heinz Haschke