Patents by Inventor Heinrich Sack

Heinrich Sack 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).

  • Use of phenolsulfonic acid-formaldehyde condensation products as drying aids
    Patent number: 6028167
    Abstract: Phenolsulfonic acid-formaldehyde condensates are used as assistants in the drying of aqueous polymer dispersions.Also described are a process for preparing polymer powders by drying, using these condensates; the polymer powders obtainable by the process; and their use as binders.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: February 22, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Pakusch, Maximilian Angel, Joachim Roser, Andree Dragon, Heinrich Sack