US Patent Issued to DL CHEMICAL on May 20 for "Polyolefin polymer and polyolefin polymerization system and method" (South Korean Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,982, issued on May 20, was assigned to DL CHEMICAL Co. LTD. (Seoul, South Korea).

"Polyolefin polymer and polyolefin polymerization system and method" was invented by Hee Jun Lee (Sejong-si, South Korea), Byung Keel Sohn (Daejeon, South Korea), Seung Tack Yu (Gyeonggi-do, South Korea), Young Shin Jo (Daejeon, South Korea), Sung Ho Choi (Sejong-si, South Korea), Sung Woo Kang (Daejeon, South Korea) and Byung Soon Chun (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An embodiment of the present disclosure relates to a polyolefin polymer including a core portion and a shell portion, wherein the core portion has a density of 0.857 g...