ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,320, issued on May 13, was assigned to Changchun Institute of Applied Chemistry Chinese Academy of Sciences (Changchun, China).
"Polyethylene glycol derivative, preparation method thereof, and polyethylene glycol hydrogel capable of producing a rapid crosslinking reaction" was invented by Chaoliang He (Changchun, China), Zhen Zhang (Changchun, China), Hui Ren (Changchun, China) and Xuesi Chen (Changchun, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a polyethylene glycol derivative comprising a repeat unit having the structure of Formula (I) and a terminal group having the structure of Formula (II). The polyethy...