Patents by Inventor Peter J. Cloos

Peter J. Cloos 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).

  • Polyketone yarn and a method of manufacturing same
    Patent number: 5552218
    Abstract: The invention relates to polyketone yarns of which the maximum tangential modulus at an elongation of more than 0.2% is at least 10 N/tex which display both high strength and, if so desired, a high elongation at break. The quality number, which is measured on a single filament out of a bundle of at least about 30 filaments spun simultaneously through one spinneret and given as .sigma...epsilon., is higher than 85 mN/tex, preferably higher than 100 mN/tex. The quality number of a yarn spun through one spinneret of one or more holes is higher than 110 mN/tex, preferably higher than 120 mN/tex. The yarns are manufactured by extruding a solution of a linear polymer of alternating ethylene and carbon monoxide units in a resorcinol-containing solvent, after which the solvent is removed with the aid of methanol as coagulant.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: September 3, 1996
    Assignee: Akzo Nobel N.V.
    Inventors: Hendrik T. Maat, Peter J. Cloos, Harm Van Der Werff, Bert J. Lommerts