US Patent Issued to HANWHA SOLUTIONS on June 23 for "Method for preparation of 1, 4-cyclohexanedimethanol" (South Korean Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,439, issued on June 23, was assigned to HANWHA SOLUTIONS Corp. (Seoul, South Korea).

"Method for preparation of 1, 4-cyclohexanedimethanol" was invented by Sun Uk Lee (Daejeon, South Korea), Namjin Jang (Daejeon, South Korea), Eun Jeong Kim (Daejeon, South Korea) and Jong Kwon Lee (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention relates to a method for preparing 1,4-cyclohexanedimethanol (CHDM), more specifically to a method for preparing 1,4-cyclohexanedimethanol having a high rate of trans isomers without an isomerization reaction step, wherein two-step hydrogenation reactions and a purification step are conducte...