ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,391, issued on Aug. 5, was assigned to Dow Global Technologies LLC (Midland, Mich.).

"Oil-extended pellet form ethylene alpha-olefin diene interpolymers for thermoplastic vulcanizates" was invented by Xiaosong Wu (Lake Jackson, Texas), Colin Li Pi Shan (Lake Jackson, Texas), Tao Han (Shanghai) and Libo Du (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Polymer compositions include an interpolymer of ethylene, an Alpha-olefin, and a nonconjugated polyene; and from 10% to 40% by weight oil. The polymer composition has a Mooney viscosity from 20 to 70. The interpolymer may include from 66% to 75% by weight monomer units derived from ethylene; a...