US Patent Issued to DAICEL on Sept. 8 for "1,3-butylene glycol product" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,083, issued on Sept. 8, was assigned to DAICEL Corp. (Osaka, Japan).

"1,3-butylene glycol product" was invented by Yasuteru Kajikawa (Tokyo), Tetsuro Nakanishi (Tokyo), Yuuichirou Hirai (Tokyo), Keisuke Ono (Tokyo), Midori Umehara (Tokyo) and Yuki Teshima (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a high-purity 1,3-butylene glycol product that is colorless and odorless, and furthermore, unlikely to be colored over time. A 1,3-butylene glycol product, having, according to a gas chromatographic analysis performed under predetermined conditions, a peak area ratio of 1000 ppm or lower appearing in a relative retention time ranging...