US Patent Issued to KOREA KUMHO PETROCHEMICAL on May 13 for "Preparation process of 5-ethylidene-2-norbornene" (South Korean Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,159, issued on May 13, was assigned to KOREA KUMHO PETROCHEMICAL Co. LTD. (Seoul, South Korea).

"Preparation process of 5-ethylidene-2-norbornene" was invented by Young Rok Lee (Daejeon, South Korea), Jae Woo Kim (Daejeon, South Korea), Kyoung Ho Row (Daejeon, South Korea), Ick Jin An (Daejeon, South Korea), Jin Woo Park (Daejeon, South Korea) and Yu Mi Kim (Cheonan-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A preparation process of 5-ethylidene-2-norbornene, including: introducing dicyclopentadiene into a dicyclopentadiene decomposition reactor to thermally decompose the dicyclopentadiene; introducing a product of the above step...