Patents by Inventor Dirk Sander

Dirk Sander 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).

  • Publication number: 20180058017
    Abstract: The method includes creating a polymer mixture, wherein the polymer mixture includes a stabilizing polymer, a bulk polymer, a flame retardant polymer combination, and a compatibilizer. The stabilizing polymer and the bulk polymer are immiscible. The stabilizing polymer includes fibers surrounded by the compatibilizer within the bulk polymer. The stabilizing polymer is aramid. The flame retardant polymer combination is a mixture of triazin and melamine. The method further includes extruding the polymer mixture into a monofilament. The method further includes quenching the monofilament. The method further includes reheating the monofilament. The method further includes stretching the reheated monofilament to align the fibers relative to each other and to form the monofilament into an artificial turf fiber. The method further includes incorporating the artificial turf fiber into an artificial turf backing.
    Type: Application
    Filed: December 3, 2015
    Publication date: March 1, 2018
    Applicant: Polytex Sportbeläge Produktions GmbH
    Inventors: Dirk SCHMITZ, Dirk SANDER, Oliver WAGENER, Stephan SICK
  • Publication number: 20170121856
    Abstract: The invention provides for a method of manufacturing artificial turf (1000). The method comprising the steps of: creating (100) a polymer mixture (100, 400, 500), wherein the polymer mixture is at least a three-phase system, wherein the polymer mixture comprises a first polymer (402), a second polymer (404), and a compatibiiizer (406), wherein the first polymer and the second polymer are immiscible, wherein the first polymer forms polymer beads (408) surrounded by the compatibiiizer within the second polymer; extruding (102) the polymer mixture into a monofilament (606); quenching (104) the monofilament; reheating (106) the monofilament; stretching (108) the reheated monofilament to deform the polymer beads into threadlike regions (800) and to form the monofilament into an artificial turf fiber (1004); incorporating (110) the artificial turf fiber into an artificial turf carpet (1002).
    Type: Application
    Filed: March 27, 2014
    Publication date: May 4, 2017
    Inventors: Stephan SICK, Dirk SANDER, Bernd JANSEN, Dirk SCHMITZ
  • Publication number: 20170051453
    Abstract: A method of manufacturing artificial turf includes the steps of: creating a polymer mixture including at least one polymer and a nucleating agent for crystallizing the at least one polymer, extruding the polymer mixture into a monofilament; quenching the monofilament; reheating the monofilament; stretching the reheated monofilament to form the monofilament into an artificial turf fiber, wherein during the stretching the nucleating agent boosts the creation of crystalline portions of the polymer within the monofilament; incorporating the artificial turf fiber into an artificial turf backing, thereby mechanically fixing the monofilaments of the arranged artificial turf fibers in the artificial turf backing.
    Type: Application
    Filed: April 16, 2015
    Publication date: February 23, 2017
    Inventors: Stephan Sick, Dirk Sander, Bernd Jansen, James M. Tritt, Dirk Schmitz