ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,200, issued on May 12, was assigned to ExxonMobil Chemical Patents Inc. (Baytown, Texas).
"Density and chemical composition control for polymer with good stress crack properties" was invented by Martin Antensteiner (Houston), Nathaniel B. Guy (Sewickely, Pa.), Porter C. Shannon (Seabrook, Texas) and Richard E. Pequeno (Baytown, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are polyethylene copolymers with improved stress crack resistance, methods for making such copolymers, and films made from the same. The polyethylene copolymers include at least 95 wt % ethylene and at most 5 wt % of at least one comonomer having 3 to 18 carbon atom...