Choji Arima

Title: Choji Arima: Innovator in Oxymethylene Copolymer Stabilization

Introduction

Choji Arima is a notable inventor based in Ube, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the stabilization of oxymethylene copolymers. His innovative approach has implications for various industrial applications.

Latest Patents

Arima holds a patent for a method of stabilizing oxymethylene copolymers. This method involves heating an oxymethylene copolymer in a hydrocarbonaceous mixed medium. The medium consists of approximately 50 - 92% by weight of a hydrocarbon with 5 - 7 carbon atoms, about 6 - 48% by weight of an alcohol, and about 2 - 20% by weight of water. The process occurs at temperatures ranging from about 100°C to about 170°C, in the presence of sodium and potassium salts of ethylenediaminetetraacetic acid, under a pH value of about 4 to 7.

Career Highlights

Arima is associated with Ube Industries, Inc., where he has been able to apply his expertise in polymer stabilization. His work has contributed to advancements in the production and application of oxymethylene copolymers, enhancing their stability and usability in various products.

Collaborations

Throughout his career, Arima has collaborated with notable colleagues such as Takami Ishii and Taro Suzuki. These partnerships have fostered innovation and development in their shared field of expertise.

Conclusion

Choji Arima's contributions to the stabilization of oxymethylene copolymers highlight his role as an influential inventor in the polymer industry. His innovative methods continue to impact the field positively.