Shotaro Sugiura

Title: The Innovations of Shotaro Sugiura

Introduction

Shotaro Sugiura is a notable inventor based in Ichihara, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of polybutadiene. His innovative work has led to advancements in materials that possess enhanced properties for various applications.

Latest Patents

Sugiura holds a patent for a process for producing polybutadiene. This process involves the polymerization of 1,3-butadiene in the presence of a specific cis-1,4-polymerization catalyst, followed by continued polymerization with a particular 1,2-polymerization catalyst. The resulting polybutadiene contains 2 to 40% of the 1,2-structure, with a melting point ranging from 110°C to 215°C. It also features 60 to 98% of the cis-1,4-structure and an intrinsic viscosity of 0.9 to 8 in tetraline at 135°C. The vulcanized product of this polybutadiene exhibits improved tear strength, flex-crack resistance, and tensile strength.

Career Highlights

Sugiura is associated with Ube Industries, Inc., where he continues to contribute to the field of polymer science. His work has been instrumental in enhancing the performance characteristics of polybutadiene, making it a valuable material in various industrial applications.

Collaborations

Throughout his career, Sugiura has collaborated with esteemed colleagues such as Tetsuro Matsuura and Haruo Ueno. These collaborations have fostered a productive environment for innovation and research in polymer chemistry.

Conclusion

Shotaro Sugiura's contributions to the development of polybutadiene highlight his role as a significant inventor in the field of polymer science. His innovative processes and collaborations have paved the way for advancements in material properties that benefit various industries.