Patents by Inventor Gerhard Smutek

Gerhard Smutek 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 the modification of the crystal form of dicyandiamide
    Patent number: 4560796
    Abstract: The present invention provides a process for the modification of the crystal form of dicyandiamide, wherein dicyandiamide is crystallized from aqueous solution in the presence of 0.001 to 10% by weight of polyvinyl alcohol and/or of a water-soluble cellulose ether derivative, referred to the amount of dicyandiamide. The crystalline dicyandiamide obtained in this manner has outstanding flow and storage properties and its mechanical strength is substantially improved.
    Type: Grant
    Filed: November 1, 1983
    Date of Patent: December 24, 1985
    Assignee: SKW Trostberg Aktiengesellschaft
    Inventors: Gerhard Smutek, Hermann Raveling