Location History:
- Yamaguchi, JP (1990)
- Iwakuni, JP (1991)
Company Filing History:
Years Active: 1990-1991
Title: Innovations by Umewaka Nakatani
Introduction
Umewaka Nakatani is a notable inventor based in Iwakuni, Japan. He has made significant contributions to the field of polymer science, particularly in the development of modified molded polymer articles. With a total of four patents to his name, Nakatani's work focuses on enhancing the properties of polymers through innovative processes.
Latest Patents
Nakatani's latest patents include a process for producing modified molded polymer articles that improve the flame retardance of polymers prepared by metathesis polymerization of cycloolefins. This is achieved by treating molded articles with a halogenated hydrocarbon capable of entering into radical chain transfer reactions with the carbon-carbon unsaturation present in the polymer recurring unit. Another patent details a method for improving the properties of a metathesis polymerized cycloolefin article by treating it with molecular halogen in an organic solvent. The degree of treatment can be regulated according to the swelling power of the solvent for the polymer, resulting in improved flame retardance, oxidation resistance, and surface properties.
Career Highlights
Nakatani is currently employed at Hercules Corporation, where he continues to innovate in the field of polymer technology. His work has garnered attention for its practical applications in enhancing the safety and performance of polymer materials.
Collaborations
Some of Nakatani's notable coworkers include Shigeyoshi Hara and Zen-ichiro Endo, who have collaborated with him on various projects related to polymer modifications.
Conclusion
Umewaka Nakatani's contributions to polymer science through his innovative patents demonstrate his commitment to advancing material technology. His work not only enhances the properties of polymers but also contributes to the safety and efficiency of their applications.