ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,150, issued on Oct. 6, was assigned to Hanwha Solutions Corp. (Seoul, South Korea).
"Method for preparing isocyanate compound" was invented by Ju Won Min (Daejeon, South Korea), Hyun Cheol Ryu (Daejeon, South Korea) and Keedo Han (Daejeon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for preparing an isocyanate compound. According to the present invention, provided is a method for preparing an isocyanate compound that can increase energy efficiency while minimizing thermal denaturation of a reaction product and formation of by-products during the preparation of an isocyanate compound using phosg...