Patents by Inventor Anne Steenbergen

Anne Steenbergen 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).

  • Adhesive-coated multifilament yarn of an aromatic polyamide
    Patent number: 4652488
    Abstract: A multifilament yarn of an aromatic polyamide, in particular poly-p-phenylene terephthalamide, is provided with an adhesive coating of a cured epoxy compound, the yarn having a free epoxide content not higher than 10 mmoles/kg. The yarn is made by spinning a solution of an aromatic polyamide into a coagulation bath and subjecting the resulting filaments to the subsequent steps of washing, applying a curable epoxy compound and one or more alkaline curing agents, curing and winding the yarn thus treated into a package. The resulting yarn can be processed into a reinforcing element for, e.g., tires in a one-step dipping process. A cord made from the yarn displays an improved resorcinol-formaldehyde-latex dip pickup.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: March 24, 1987
    Assignee: Akzo nv
    Inventors: Stephanus Willemsen, Willem E. Weening, Anne Steenbergen
  • Adhesive-coated multifilament yarn of an aromatic polyamide, a yarn package, a cord, a fabric, a reinforced object and a process for making said yarn
    Patent number: 4557967
    Abstract: A multifilament yarn of an aromatic polyamide, in particular poly-p-phenylene terephthalamide, is provided with an adhesive coating of a cured epoxy compound, the yarn having a free epoxide content not higher than 10 mmoles/kg. The yarn is made by spinning a solution of an aromatic polyamide into a coagulation bath and subjecting the resulting filaments to the subsequent steps of washing, applying a curable epoxy compound and one or more alkaline curing agents, curing and winding the yarn thus treated into a package. The resulting yarn can be processed into a reinforcing element for, e.g., tires in a one-step dipping process. A cord made from the yarn displays an improved resorcinol-formaldehyde-latex dip pickup.
    Type: Grant
    Filed: November 1, 1983
    Date of Patent: December 10, 1985
    Assignee: Akzo N.V.
    Inventors: Stephanus Willemsen, Willem E. Weening, Anne Steenbergen