This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignees: Shangyu Nhu Biological Chemical Co., Ltd., Zhejiang Nhu Company Ltd., Zhejiang Nhu Special Materials Co., Ltd.. Active years: 2017.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:

Years Active: 2017
Title: Xinfeng Zheng: Innovator in Fiber-Grade Polyphenylene Sulfide Resin Synthesis
Introduction
Xinfeng Zheng is a notable inventor based in Shangyu, China. He has made significant contributions to the field of materials science, particularly in the synthesis of fiber-grade polyphenylene sulfide resin. His innovative approach has led to advancements in the production of high-performance materials.
Latest Patents
Xinfeng Zheng holds a patent for a method of synthesizing fiber-grade polyphenylene sulfide resin. This method utilizes sodium bisulfide and p-dichlorobenzene as raw materials, with N-methyl pyrrolidone serving as the solvent. The process incorporates a C5-C6 fatty acid salt formed through dehydration, which acts as a polymerization additive. The resulting white polyphenylene sulfide resin meets the necessary requirements for fiber applications, demonstrating a melt flow rate (MFR) below 125 g/10 min and a weight-average molecular weight exceeding 4.2×10. The method also addresses the recycling of C5-C6 fatty acid from the filtrate, enhancing the efficiency of the synthesis process.
Career Highlights
Throughout his career, Xinfeng Zheng has worked with prominent organizations, including Zhejiang Nhu Special Materials Co., Ltd. and Zhejiang University. His experience in these institutions has allowed him to refine his expertise in polymer chemistry and materials engineering.
Collaborations
Xinfeng Zheng has collaborated with esteemed colleagues such as Zhirong Chen and Woyuan Li. These partnerships have contributed to the advancement of research and development in the field of polyphenylene sulfide resin synthesis.
Conclusion
Xinfeng Zheng's innovative work in the synthesis of fiber-grade polyphenylene sulfide resin showcases his dedication to advancing materials science. His contributions have the potential to impact various industries that rely on high-performance materials.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile