Patents by Inventor Hertha Kraus

Hertha Kraus 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).

  • Aqueous synthetic resin dispersion
    Patent number: 5185387
    Abstract: An aqueous synthetic resin dispersion having a minimum film forming temperature below 50.degree. C., containing an emulsion polymer having a core/shell structure consisting ofA) 65-90 percent by weight of a weakly crosslinked core polymer having a glass transition temperature, T.sub.g, below 0.degree. C. and an extensibility of at least 150 percent, andB) 10-35 percent by weight of an essentially non-crosslinked shell polymer having a T.sub.g below 60.degree. C. the T.sub.g of the core polymer being at least 10 Centigrade degrees below that of the shell polymer.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: February 9, 1993
    Assignee: Rohm GmbH
    Inventors: Wolfgang Klesse, Wilhelm Elser, Theodor Mager, Juergen Christner, Hertha Kraus, Peter Rossberg, Marliese Weber