US Patent Issued to Wanhua Chemical Group, Wanhua Chemical (NINGBO) on Oct. 27 for "Polyisocyanate composition, preparation method therefor and application thereof" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,774,365, issued on Oct. 27, was assigned to Wanhua Chemical Group Co. LTD (Yantai, China) and Wanhua Chemical (NINGBO) Co. LTD. (Ningbo, China).

"Polyisocyanate composition, preparation method therefor and application thereof" was invented by Yong Yu (Yantai, China), Xuelei Cui (Yantai, China), Yaoyun Guo (Yantai, China), Yonghua Shang (Yantai, China), Jinping Han (Yantai, China), WenBin Li (Yantai, China), Degang Liu (Yantai, China) and Yuan Li (Yantai, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polyisocyanate composition, a preparation method therefor and an application thereof. The value of the mass content of alkaline hydrolyzed chlorine...