ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,391,796, issued on Aug. 19, was assigned to SABIC GLOBAL TECHNOLOGIES B.V. (Bergen op Zoom, Netherlands).
"Method for the manufacture of polycarbonate" was invented by Shivakumar Konda (Tamilnadu, India), Chelsea Schmidt (Wadesville, Ind.), Indira Jyothi Polasa (Maastricht, Netherlands), Jordi Calveras (Taunton, Mass.) and Thomas Paul Kanjirathadathil (Bangalore, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for the manufacture of a (co)polycarbonate comprising reacting tetrabromo bisphenol A and optionally one or more bisphenol comonomer(s) with phosgene wherein the tetrabromo bisphenol A contains an amo...