Patents by Inventor Siegfried Schaaf

Siegfried Schaaf 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).

  • Copolyamide dispersions and methods of making and using same
    Patent number: 4061619
    Abstract: A composition for causing one layer of fabric or similar material to adhere to an adjacent layer comprising a copolyamide dispersion containing 0.2 to 5.0% by weight of a fatty alcohol based on the total dispersion. A method of preparation of such dispersions and of dot coating with them is also disclosed.
    Type: Grant
    Filed: May 15, 1975
    Date of Patent: December 6, 1977
    Assignee: Inventa AG fur Forschung und Patentverwertung
    Inventor: Siegfried Schaaf