Patents by Inventor Herman J. Guersen

Herman J. Guersen 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).

  • Superabsorbent-coated aramid yarn and a process for manufacturing such a yarn
    Patent number: 5342686
    Abstract: An aramid yarn, preferably poly(p-phenylene terephthalamide), is coated with a water swellable superabsorbent material. The swelling value of the yarn is at least 60. The superabsorbent provides water blocking capability to the yarn, so that it is suitable for use as a strength member, for example, in water tight optical communication cables. The yarn is made by successively treating an aramid yarn with a water-in-oil emulsion, a superabsorbent material being present in the water phase of the emulsion, and removing the liquid components from the treated yarn by evaporation.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: August 30, 1994
    Assignee: Akzo Nobel nv
    Inventors: Herman J. Guersen, Stephanus Willemsen