ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,570, issued on June 23, was assigned to Covestro Deutschland AG (Leverkusen, Germany).
"Flame-resistant polycarbonate-polyester blend" was invented by Ralf Hufen (Duisburg, Germany) and Marius Nolte (Cologne, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a molding compound containing A) 45 to 65 wt. % of at least one aromatic polycarbonate, polyester carbonate or mixtures thereof, B) 18 to 31 wt. % of at least one polybutylene terephthalate having rheological properties of 5 g/10 min to 30 g/10 min determined according to DIN EN ISO 1133 at 250deg C. measuring temperature and a load of 2.16 kg, C) 3 to 10 wt...