Patents by Inventor Thomas Seelmann

Thomas Seelmann 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).

  • Color Stable and Low Wear Polymer Composition and Articles Made Therefrom
    Publication number: 20230323107
    Abstract: A colorized and tribologically modified polyoxymethylene polymer composition is disclosed. The polyoxymethylene polymer composition is comprised of a polyoxymethylene polymer in combination with at least one tribological modifier. The tribological modifier may include a fluoropolymer. The polymer composition further contains at least one coloring agent in combination with a color stabilizer. The color stabilizer has been found to dramatically improve color consistency. Polymer articles molded from the polymer composition not only have excellent surface appearance but have excellent low friction characteristics when tested against aluminum.
    Type: Application
    Filed: May 25, 2023
    Publication date: October 12, 2023
    Inventors: Qamer Zia, Thomas Seelmann, Kirsten Markgraf
  • Color stable and low wear polymer composition and articles made therefrom
    Patent number: 11661512
    Abstract: A colorized and tribologically modified polyoxymethylene polymer composition is disclosed. The polyoxymethylene polymer composition is comprised of a polyoxymethylene polymer in combination with at least one tribological modifier. The tribological modifier may include a fluoropolymer. The polymer composition further contains at least one coloring agent in combination with a color stabilizer. The color stabilizer has been found to dramatically improve color consistency. Polymer articles molded from the polymer composition not only have excellent surface appearance but have excellent low friction characteristics when tested against aluminum.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: May 30, 2023
    Assignee: CELANESE INTERNATIONAL CORPORATION
    Inventors: Qamer Zia, Thomas Seelmann, Kirsten Markgraf
  • Color Stable and Low Wear Polymer Composition and Articles Made Therefrom
    Publication number: 20200190311
    Abstract: A colorized and tribologically modified polyoxymethylene polymer composition is disclosed. The polyoxymethylene polymer composition is comprised of a polyoxymethylene polymer in combination with at least one tribological modifier. The tribological modifier may include a fluoropolymer. The polymer composition further contains at least one coloring agent in combination with a color stabilizer. The color stabilizer has been found to dramatically improve color consistency. Polymer articles molded from the polymer composition not only have excellent surface appearance but have excellent low friction characteristics when tested against aluminum.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 18, 2020
    Inventors: Qamer Zia, Thomas Seelmann, Kirsten Markgraf
  • Mass Colored Polymer Composition For Use In Medical Technology Applications
    Publication number: 20190338116
    Abstract: A medical grade polyoxymethylene polymer composition is disclosed that has been mass colored. The composition is particularly formulated so as to meet the standards of various governmental and safety requirements needed for use in medical applications and/or in food contact applications. In one embodiment, the polymer composition is formulated to meet the standards of USP Class VI testing and/or ISO 10993 testing.
    Type: Application
    Filed: May 2, 2019
    Publication date: November 7, 2019
    Inventors: Kirsten Markgraf, Kai-Uwe Toennes, Thomas Seelmann, Bruce M. Mulholland