ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,595, issued on June 23, was assigned to KINGFA SCI. & TECH. Co. LTD. (Guangzhou, China).
"Halogen-free flame-retardant polyamide (PA) composite and preparation method thereof" was invented by Jian Dai (Guangzhou, China), Nanbiao Ye (Guangzhou, China), Xianbo Huang (Guangzhou, China), Chao Ding (Guangzhou, China), Yiquan Zheng (Guangzhou, China), Feng Wang (Guangzhou, China) and Yajun Zhang (Guangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A halogen-free flame-retardant polyamide (PA) composite includes the following components in parts by weight: 20 to 50 parts of an aliphatic PA, 10 to 30 parts of an aromatic PA, 20 to 30 parts of a ...