US Patent Issued to DAICEL on Nov. 18 for "Method for manufacturing 1,3-butylene glycol, and 1,3-butylene glycol product" (Japanese Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,134, issued on Nov. 18, was assigned to DAICEL Corp. (Osaka, Japan).

"Method for manufacturing 1,3-butylene glycol, and 1,3-butylene glycol product" was invented by Masahiko Shimizu (Tokyo), Ryuji Saitou (Tokyo) and Katsunori Makizawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method capable of manufacturing high-purity 1,3-butylene glycol having a high potassium permanganate test value, a very low content of low boiling point components, and a high initial boiling point with a high recovery rate.The method for manufacturing 1,3-butylene is a method for obtaining purified 1,3-butylene glycol from a crude reaction liquid cont...