US Patent Issued to POLYWIN on Oct. 27 for "Method and device for the production of lactide" (Singaporean Inventor)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,272, issued on Oct. 27, was assigned to POLYWIN PTE. LTD. (Singapore).

"Method and device for the production of lactide" was invented by Jianjun Sui (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention relates to a method for the continuous production of optically pure lactide comprising a first reactive distillation system, a second reactive distillation system, a main distillation system and the side-draw refluxer. For each of the four systems a novel horizontally top-mounted condenser is used in order to decrease its total pressure drop and thus reduce side-reactions associated with high bottom temperature. In addition, a wipe...