Patents by Inventor Geert N. Waagen

Geert N. Waagen 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 preparation of ultrastretchable polymer material, ultrastretchable material, as well as a process for the manufacture of objects
    Patent number: 5004778
    Abstract: An ultrastretchable polymer material is prepared starting from polyolefine particles with a low entanglement density and a weight average molecular weight (M.sub.w) higher than 400,000, the particles being densified to a coherent material together with a process auxiliary material at an elevated temperature, but below the melting point of the pure polyolefine.From this ultrastretchable material, objects with a high tensile strength and a high modulus can be produced by stretching it, for instance, at a temperature which is at most 70.degree. C. below the temperature at which the polyolefine melts under the prevailing conditions, if desired after removal of the process auxiliary agent present in it.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: April 2, 1991
    Assignee: Stamicarbon B.V.
    Inventors: Geert N. Waagen, Cornelis W. M. Bastiaansen, Robert Kirschbaum