ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,377, issued on Sept. 23, was assigned to Dow Global Technologies LLC (Midland, Mich.) and Rohm and Haas Co. (Collegeville, Pa.).

"Heat aging-resistant and flexible polyolefin formulation" was invented by Qian Gou (Collegeville, Pa.), Timothy J. Person (Pottstown, Pa.), Paul J. Caronia (Annadale, N.J.), Yushan Hu (Pearland, Texas) and John Reffner (North Wales, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polyolefin formulation comprising constituents (A) to (E) in the following amounts: from 15.0 to 55.0 weight percent (wt %) of (A) a polypropylene homopolymer; from 77.9 to 30.0 wt % of (B) a poly(ethylene-co-1-alkene) copolymer; from 3.0 t...