Zyunzi Tashima

Title: Zyunzi Tashima: Innovator in Isocyanate Technology

Introduction

Zyunzi Tashima is a notable inventor based in Omuta, Japan. He has made significant contributions to the field of chemical engineering, particularly in the development of alicyclic isocyanates. His innovative work has implications for various applications, including synthetic resins and urethane coatings.

Latest Patents

Tashima holds a patent for a process for preparing alicyclic isocyanates. This patent describes the method of obtaining lactam-blocked products of alicyclic isocyanates by blocking an aromatic isocyanate with lactam. The resulting blocked product undergoes catalytic hydrogenation using a rhodium catalyst. The blocked alicyclic isocyanate produced can serve as a curing agent for synthetic resins, such as epoxy resins, or as a starting material for urethane coatings. Additionally, the blocked isocyanate can be distilled to isolate an alicyclic isocyanate through thermal dissociation and separation of the blocking agent.

Career Highlights

Zyunzi Tashima is associated with Mitsui Toatsu Chemicals, Incorporated, where he has been able to apply his expertise in chemical processes. His work has led to advancements in the production and application of isocyanates, which are crucial in various industrial sectors.

Collaborations

Tashima has collaborated with notable colleagues, including Ryuichi Yamamoto and Yutaka Hirai. These partnerships have fostered innovation and contributed to the successful development of new chemical processes.

Conclusion

Zyunzi Tashima's contributions to the field of alicyclic isocyanates highlight his role as an influential inventor. His patented processes not only advance chemical engineering but also have practical applications in the production of synthetic materials.