This inventor holds 3 USPTO granted patents. Top assignees: Beijing University of Technology, Beijing University of Chemical Tehcnology. Active years: 2014-2016.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 389 
1 out of 99 Years Active: 2014-2016
Title: Innovations of Hongqing Niu in Polyimide Fiber Technology
Introduction
Hongqing Niu is a prominent inventor based in Beijing, China. He has made significant contributions to the field of high-performance organic fibers, particularly through his innovative work on polyimide fibers. With a total of 3 patents, Niu's inventions are paving the way for advancements in material science.
Latest Patents
Niu's latest patents include a high-strength high-modulus polyimide fiber and its preparation method. This invention pertains to the technical field of high-performance organic fiber. The polyimide (PI) fiber is synthesized from 3,3',4,4′-biphenyl tetracarboxylic dianhydride (BPDA), p-phenylenediamine (pPDA), and 2-(4-aminophenyl)-1H-benzimidazol-5-amine (BIA). The molar ratio between pPDA and BIA is maintained at 1:10–3:1. The synthesis process employs a gradient temperature reaction method and a one-step continuous preparation method. This approach overcomes the challenges associated with the increased content of BIA, resulting in a PI fiber that exhibits remarkable strength of up to 4.5 GPa and a modulus of 201 GPa. The raw materials are widely available, and the spinning process is efficient, making industrial production feasible.
Another notable patent involves methods for continuously manufacturing polyimide fibers. This patent describes techniques for producing high-quality polyimide fibers suitable for continuous industrial production. The process includes spinning a polyamic acid solution, coagulating, drying, thermally treating, and stretching the resulting fibers to obtain polyimide fibers, which are then wound into rolls.
Career Highlights
Hongqing Niu has worked at prestigious institutions such as Beijing University of Technology and Beijing University of Chemical Technology. His research and innovations have significantly impacted the field of material science, particularly in the development of high-performance fibers.
Collaborations
Niu has collaborated with notable colleagues, including Dezhen Wu and Shengli Qi. Their combined expertise has contributed to the advancement of polyimide fiber technology.
Conclusion
Hongqing Niu's innovative work in the field of polyimide fibers showcases his dedication to advancing material science. His patents reflect a commitment
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile