The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2025
Filed:
Jul. 26, 2023
Tayho Advanced Materials Group Co., Ltd., Yantai, CN;
Zhenhong Guan, Yantai, CN;
Jinling Song, Yantai, CN;
Xiangyang Leng, Yantai, CN;
Xiquan Song, Xi'an, CN;
Meige Wang, Yantai, CN;
Dong Gao, Yantai, CN;
TAYHO ADVANCED MATERIALS GROUP CO., LTD., Yantai, CN;
Abstract
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, and adjusting the pH of the achieved reaction liquid to obtain a first slurry; adding isophthaloyl chloride to a m-phenylenediamine solution, reacting at a stirring speed of 25-35 r/min, adjusting the pH of the achieved reaction liquid, filtering insoluble matter, adding an initiator and isophthaloyl chloride at a stirring speed of 25-35 r/min for reaction, and adjusting the pH of the achieved reaction liquid to obtain a second slurry; uniformly mixing and then de-foaming the two slurries, and producing the high-elongation meta-aramid fiber through a wet spinning process.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile