US Patent Issued to Zhejiang Huangma Technology, Zhejiang Lukean Chemical, Zhejiang Huangma Shangyi New Material, Shangyu Huangma Surface Activated Reagent Research Institute on July 14 for "Method for preparing polyether amine catalyst, and polyether amine" (Chinese Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,931, issued on July 14, was assigned to Zhejiang Huangma Technology Co. Ltd. (Shaoxing, China), Zhejiang Lukean Chemical Co. Ltd. (Shaoxing, China), Zhejiang Huangma Shangyi New Material Co. Ltd. (Shaoxing, China) and Shangyu Huangma Surface Activated Reagent Research Institute Co. Ltd. (Shaoxing, China).

"Method for preparing polyether amine catalyst, and polyether amine" was invented by Weisong Wang (Shaoxing, China), Majishi Wang (Shaoxing, China), Jiang Yu (Shaoxing, China), Shengli Wang (Shaoxing, China), Yifeng Jin (Shaoxing, China), Shicong Zhao (Shaoxing, China) and Minggui Song (Shaoxing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: ...