US Patent Issued to WEIHAI HELEN NEW-MATERIAL TECH on Nov. 18 for "Organic phosphorous compound flame retardant, preparation method and applications thereof" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,423, issued on Nov. 18, was assigned to WEIHAI HELEN NEW-MATERIAL TECH Co. LTD. (Shandong, China).

"Organic phosphorous compound flame retardant, preparation method and applications thereof" was invented by Fanxu Meng (Shandong, China), Renchun Tian (Shandong, China), Huanyang Du (Shandong, China), Haoliang Xu (Shandong, China) and Jun Zheng (Shandong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to an organic phosphorous compound flame retardant, their preparation methods and applications. The organic phosphorous compound flame retardants are prepared by drop-wise adding at least one from the soluble salts of di-alkyl ...