Nobuo Sato

Title: Nobuo Sato: Innovator in Polymer Production

Introduction

Nobuo Sato is a distinguished inventor based in Fukushima, Japan. He has made significant contributions to the field of polymer production, holding a total of 9 patents. His innovative approaches have led to advancements in materials science, particularly in the production of poly(arylene sulfide).

Latest Patents

One of his latest patents is a production process for poly(arylene sulfide). This process includes a charging step that prepares a mixture containing an organic amide solvent, a sulfur source, an alkali metal hydroxide, water, and a dihalo-aromatic compound, maintaining a pH of at least 12.5. The first-stage polymerization step involves heating the mixture to initiate a polymerization reaction, resulting in a prepolymer with a conversion of the dihalo-aromatic compound of at least 50%. The second-stage polymerization step adds a phase separation agent into the reaction system and incorporates an alkali metal hydroxide in an amount corresponding to 1 to 10 mol % per mol of the charged sulfur source, thereby continuing the polymerization reaction. Another notable invention is a gas-barrier, multi-layer hollow container.

Career Highlights

Throughout his career, Nobuo Sato has worked with prominent companies such as Kureha Kagaku Kogyo K.K. and Kureha Corporation. His work has been instrumental in developing innovative materials that have practical applications in various industries.

Collaborations

He has collaborated with notable colleagues, including Zenya Shiiki and Yukichika Kawakami, contributing to a dynamic exchange of ideas and expertise in the field of polymer science.

Conclusion

Nobuo Sato's contributions to polymer production and his innovative patents highlight his role as a leading inventor in the industry. His work continues to influence advancements in materials science and engineering.