Kazunari Nitta is a prominent inventor based in Ohmuta, Japan. He has made significant contributions to the field of polyphenylene chemistry, holding a total of 7 patents. His work focuses on innovative processes that enhance the production and application of polyphenylene materials.

Latest Patents

Nitta's latest patents include a process for the production of methylene-crosslinked polyphenylene. This process improves the hue of a methylene-crosslinked polyphenylene polyisocyanate by first removing any residual phosgene, followed by heat treatment in the presence of hydrogen chloride gas. Another notable patent is a fractionation process of a reaction mixture containing methylene bridged polyphenylene polyisocyanate. This process separates the mixture into fractions, focusing on the content of 4,4'- and 2,4'-isomers of diphenylmethane diisocyanate while reducing impurities.

Career Highlights

Kazunari Nitta is currently employed at Mitsui Toatsu Chemicals, Incorporated, where he continues to develop innovative chemical processes. His expertise in polyphenylene chemistry has positioned him as a key figure in the industry.

Collaborations

Nitta has collaborated with notable colleagues, including Shoichiro Miyahara and Toshio Matsumoto. These partnerships have contributed to the advancement of his research and the successful implementation of his patented processes.

Conclusion

Kazunari Nitta's contributions to polyphenylene chemistry through his innovative patents and collaborations highlight his importance in the field. His work continues to influence the development of advanced materials and processes.

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