ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,391,774, issued on Aug. 19, was assigned to Borealis AG (Vienna).
"Heterophasic polypropylene copolymers" was invented by Jingbo Wang (Linz, Austria), Markus Gahleitner (Linz, Austria), Klaus Bernreitner (Linz, Austria), Luigi Maria Cristoforo Resconi (Linz, Austria) and Simon Schwarzenberger (Linz, Austria).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heterophasic polypropylene copolymer having an MFR2 of 0.05 to 20 g/10 min (ISO 1133 at 230deg C. with a loading of 2.16 kg) and a melting point (Tm) of 156 to 164deg C. (measured by DSC according to ISO 11357) wherein the heterophasic polypropylene copolymer comprises at least the following components...