US Patent Issued to TAYHO ADVANCED MATERIALS GROUP on Dec. 30 for "High-elongation meta-aramid fiber, preparation method and apparatus" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,803, issued on Dec. 30, was assigned to TAYHO ADVANCED MATERIALS GROUP Co. LTD. (Yantai, China).

"High-elongation meta-aramid fiber, preparation method and apparatus" was invented by Zhenhong Guan (Yantai, China), Jinling Song (Yantai, China), Xiangyang Leng (Yantai, China), Xiquan Song (Xi'an, China), Meige Wang (Yantai, China) and Dong Gao (Yantai, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a high-elongation meta-aramid fiber, a preparation method and an apparatus. The high-elongation meta-aramid fiber is prepared by: adding isophthaloyl chloride to a m-phenylenediamine solution, reacting at a stirring speed of 20-30 r/min,...