US Patent Issued to BASF on Dec. 30 for "Synthesis of linear polyoxazolidinones using uretdiones as diisocyanate component" (German Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,547, issued on Dec. 30, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Synthesis of linear polyoxazolidinones using uretdiones as diisocyanate component" was invented by Aggeliki Quell (Ludwigshafen am Rhein, Germany), Hans-Josef Thomas (Korschenbroich, Germany) and Berend Eling (Lemfoerde, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for preparing a thermoplastic polymer involves reacting at least components (a) to (b), in the presence of a catalyst composition (c). Component (a) is an isocyanate composition containing at least one uretdione diisocyanate (a-i), and component (b) is an epoxide composition containing a...