US Patent Issued to Dalian Polytechnic University, Dalian Supercritical Waterless Printing and Dyeing Technology on Jan. 20 for "Reactive disperse yellow dye for supercritical CO 2 dyeing and methods of production and use thereof" (Chinese Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,943, issued on Jan. 20, was assigned to Dalian Polytechnic University (Liaoning, China) and Dalian Supercritical Waterless Printing and Dyeing Technology Co. Ltd (Liaoning, China).

"Reactive disperse yellow dye for supercritical CO 2 dyeing and methods of production and use thereof" was invented by Huanda Zheng (Liaoning, China), Laijiu Zheng (Liaoning, China) and Youcai Guo (Liaoning, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A reactive disperse yellow dye is suitable for supercritical CO2 anhydrous dyeing. The reactive disperse yellow dye in has a parent of azo structure, and has monochlorometriazinyl groups thereon. The reactive disper...