ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,046, issued on July 15, was assigned to Basell Poliolefine Italia S.r.l. (Milan).
"Heterophasic propylene copolymers" was invented by Fabrizio Piemontesi (Ferrara, Italy), Alessandro Mignogna (Ferrara, Italy), Dario Liguori (Ferrara, Italy), Giampiero Morini (Ferrara, Italy) and Gianni Vitale (Ferrara, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A polypropylene composition made from or containing: A) from 60 to 90 wt %, based upon the total weight of the polypropylene composition, of a fraction insoluble in xylene at 25deg C., is made from or containing more than 80% wt of propylene units, and B) from 10 to 40 wt %, based upon the total wei...