US Patent Issued to SK Innovation, SK Geo Centric on July 22 for "Method for removing chlorine from pyrolysis process of waste plastic" (South Korean Inventors)

ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,781, issued on July 22, was assigned to SK Innovation Co. Ltd. (Seoul, South Korea) and SK Geo Centric Co. Ltd. (Seoul, South Korea).

"Method for removing chlorine from pyrolysis process of waste plastic" was invented by Sanghwan Jo (Daejeon, South Korea), Sookil Kang (Daejeon, South Korea), Sangick Lee (Daejeon, South Korea) and Jaeheum Jung (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for removing chlorine from a waste plastic. The method includes a) reacting a waste plastic with a neutralizing agent; and b) reacting the product of step a) with a copper compound. 95% by weight or more of chlorine is rem...