ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,316, issued on Sept. 29, was assigned to NANTEX INDUSTRY Co. LTD. (Kaohsiung City, Taiwan).
"Method for manufacturing nitrile butadiene rubber" was invented by Chun-Chuan Shih (Kaohsiung City, Taiwan), Yen-Ju Chen (Kaohsiung City, Taiwan), Hung-Yu Chen (Kaohsiung City, Taiwan) and Pen-Hsin Chou (Kaohsiung City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a nitrile butadiene rubber includes: subjecting a material composition containing water, butadiene, acrylonitrile, an emulsifying agent, an initiator, and a molecular weight regulator to an emulsion polymerization reaction, so as to form an emulsion; and adding ...