ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,938, issued on Jan. 20, was assigned to Borealis AG (Vienna).

"Heterophasic polypropylene compositions comprising a recycled material as modifier with an improved balance of mechanical properties" was invented by Jingbo Wang (Linz, Austria), Markus Gahleitner (Linz, Austria), Klaus Bernreitner (Linz, Austria) and Hermann Braun (Linz, Austria).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polypropylene composition (C) obtainable by blending: a) 50.0 to 95.0 wt.-% of a heterophasic propylene copolymer (HECO) defined by its crystalline fraction content (78.0 to 92.0 wt.-%), soluble fraction content (8.0 to 22.0 wt.-%), C2 content of said soluble frac...