Kunishige Ohtsu

Title: Kunishige Ohtsu: Innovator in Polymer Production

Introduction

Kunishige Ohtsu is a notable inventor based in Ichihara, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the production of light-colored vinylphenol-based polymers. His innovative approach has led to advancements in the efficiency and economy of polymer production.

Latest Patents

Ohtsu holds a patent for a process titled "Process for producing lightly colored p-vinylphenol polymer." This patent describes a method for efficiently and economically producing a polymer that excels in transmittance of visible light and far-ultraviolet light. The process involves the homopolymerization of p-vinylphenol or the copolymerization of p-vinylphenol with a compatible vinyl compound, utilizing a cationic polymerization catalyst or a radical polymerization initiator. The method includes vacuum flash distillation of a p-vinylphenol-containing raw material in the presence of a phenolic compound and water, followed by polymerization of the resulting fraction.

Career Highlights

Kunishige Ohtsu is associated with Maruzen Petrochemical Company, Limited, where he has applied his expertise in polymer chemistry. His work has contributed to the development of advanced materials that are both efficient and environmentally friendly.

Collaborations

Ohtsu has collaborated with notable colleagues such as Masao Kaneko and Tadashi Matsumoto. Their combined efforts have furthered research and development in the field of polymer production.

Conclusion

Kunishige Ohtsu's innovative work in the production of light-colored vinylphenol-based polymers showcases his significant impact on polymer chemistry. His contributions continue to influence advancements in the industry.