US Patent Issued to BEIJING TIANGANG AUXILIARY on July 7 for "Polymerized high-molecular-weight sterically hindered amine and preparation method thereof" (Chinese Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,027, issued on July 7, was assigned to BEIJING TIANGANG AUXILIARY Co. LTD. (Beijing).

"Polymerized high-molecular-weight sterically hindered amine and preparation method thereof" was invented by Jingjing An (Beijing), Wei Chen (Beijing), Yongnian Gao (Beijing), Jing Li (Beijing) and Gang Liu (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a polymerized high-molecular-weight sterically hindered amine having a general formula I, the sterically hindered amine has the advantages of high molecular weight, difficult migration in polymer products, good thermal stability, etc., and can stabilize and/or be flame retarda...