Patents by Inventor Guenter Fleck

Guenter Fleck 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 making a salt free solid polymer from a polymer emulsion
    Patent number: 4535137
    Abstract: What is disclosed is a method for making a substantially salt free solid polymer product from an emulsion polymer prepared with the aid of a free emulsifier acid having a pKa in the 1.0 to 4.5 range, the dispersion so obtained being precipitated by the addition thereto of a strong acid.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: August 13, 1985
    Assignee: Rohm GmbH
    Inventors: Werner Siol, Hubert Rauch, Guenter Fleck