US Patent Issued to Sichuan University on April 21 for "Preparation method of plant biomass-based active tanning agent" (Chinese Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,876, issued on April 21, was assigned to Sichuan University (China).

"Preparation method of plant biomass-based active tanning agent" was invented by Wei Lin (Chengdu, China), Yuanhang Xiao (Chengdu, China), Chunhua Wang (Chengdu, China) and Min Jiang (Chengdu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a preparation method of a plant biomass-based active tanning agent. Under a low-temperature reaction condition, cyanuric chloride and a plant biomass compound are used to synthesize an environment-friendly plant biomass-based active tanning agent through a nucleophilic substitution reaction. The active tanning agent obtained i...