Patents by Inventor Maria L. A. Slettenhaar-von Piekartz

Maria L. A. Slettenhaar-von Piekartz 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).

  • Caprolactam copolyamides useful as hot melt adhesives for textiles
    Patent number: 4196108
    Abstract: Polyamides having at least three different recurring polyamide repeating units are provided herein. These polyamides are useful hot melt adhesives for textiles and exhibit low softening point, high viscosity, high adhesive strength and good detergent and dry cleaning resistance.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: April 1, 1980
    Assignee: Emery Industries, Inc.
    Inventors: Adrien G. Hinze, Hendrik G. Stigter, Maria L. A. Slettenhaar-von Piekartz