US Patent Issued to KOREA KUMHO PETROCHEMICAL on Feb. 3 for "System of preparing a phthalonitrile-based compound and method of preparing phthalonitrile-based compound using the same" (South Korean Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,114, issued on Feb. 3, was assigned to KOREA KUMHO PETROCHEMICAL Co. LTD. (Seoul, South Korea).

"System of preparing a phthalonitrile-based compound and method of preparing phthalonitrile-based compound using the same" was invented by Kee Yoon Roh (Daejeon, South Korea) and Nam Hyun Cho (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates a system of preparing a phthalonitrile-based compound using a continuous process, the preparation system including: a first reaction unit filled with a mixture including a phthalic acid-based compound and a nitrile-based compound; a second reaction unit connected to the...