ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,734,792, issued on Sept. 15, was assigned to ExxonMobil Chemical Patents Inc. (Baytown, Texas).
"Full polyethylene blown film through double bubble process" was invented by Xiao-Chuan Wang (Shanghai), Zhi-Yi Shen (Shanghai), Chao Liu (Shanghai), Zhi Hui Zhang (Wuhan, China) and Qin Wang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein are substantially all-poly ethylene films, and in particular blown biaxially oriented all-polyethylene films. The films can be multi-layer, and can be produced using a double bubble process. Particular multi-layer films include at least two skin layers, and al least one core layer disposed directly...