US Patent Issued to Evonik Operations on Dec. 16 for "Production of high temperature polymer based pellets by underwater pelletization at elevated water temperature to produce (rigid) bead foams" (German Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,753, issued on Dec. 16, was assigned to Evonik Operations GmbH (Essen, Germany).

"Production of high temperature polymer based pellets by underwater pelletization at elevated water temperature to produce (rigid) bead foams" was invented by Christian TraBl (Warmensteinach, Germany), Melanie Niepert (Frankfurt, Germany), Florian Hopf (Neu Isenburg, Germany), Denis Holleyn (Hofheim am Taunus, Germany) and Mona Ganglauf (Hoechst, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process can be used for producing (rigid) particle foams from polymer compositions containing at least one polymer having a glass transition temperature according to ISO ...