US Patent Issued to DAICEL on Nov. 25 for "Method for producing 1,3-butylene glycol, and 1,3-butylene glycol product" (Japanese Inventor)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,568, issued on Nov. 25, was assigned to DAICEL Corp. (Osaka, Japan).

"Method for producing 1,3-butylene glycol, and 1,3-butylene glycol product" was invented by Masahiko Shimizu (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method capable of yielding high-purity 1,3-butylene glycol having a very low content of a low boiling point component and a high initial boiling point, with a high recovery ratio. A reaction crude liquid containing 1,3-butylene glycol is subjected to product distillation to yield purified 1,3-butylene glycol, through dehydration including removing water by distillation and performing high boiling point compo...