US Patent Issued to BASF on Oct. 27 for "Process for preparing at least one polyisocyanate" (German, Belgian Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,364, issued on Oct. 27, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Process for preparing at least one polyisocyanate" was invented by Jens Ferbitz (Ludwigshafen am Rhein, Germany), Jan Pablo Josch (Ludwigshafen am Rhein, Germany), Kai Thiele (Antwerp, Belgium) and Torsten Mattke (Ludwigshafen am Rhein, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process for preparing at least one polyisocyanate R(-NCO)x, the process comprising preparing a mixture R1 comprising at least one polyamine R(-NH2)x, with x=2 or more, in a first reaction zone Z1; passing at least a portion P1 of the mixture R1, P...