ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,221,533, issued on Feb. 11, was assigned to Borealis AG (Vienna).
"Heterophasic polypropylene composition" was invented by Jingbo Wang (Linz, Austria), Elisabeth Potter (Linz, Austria), Luc Monnissen (Arsimont, Belgium) and Meta Cigon (Vienna).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heterophasic polypropylene composition comprises a matrix based on a propylene-random copolymer and a linear low density polyethylene dispersed in the matrix. The heterophasic polypropylene composition has both improved impact strength and reduced amount of fraction soluble in cold xylene (XCS), while maintaining optical properties. Further, the heterophasic polyprop...