ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,355, issued on March 17, was assigned to Celanese Sales Germany GmbH (Sulzbach, Germany).
"Polyester polymer compositions" was invented by Qamer Zia (Raunheim, Germany), Kirsten Markgraf (Weinheim, Germany) and Dirk Zierer (Hattersheim, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fiber reinforced polyester polymer composition is disclosed that contains at least one tribological modifier. The tribological modifier may comprise an ultra-high molecular weight silicone alone or in combination with polytetrafluoroethylene particles. The composition not only has excellent tensile properties but also can produce a low friction surface."
The ...