Shunro Hayashi

Title: Shunro Hayashi: Innovator in Polymer Chemistry

Introduction

Shunro Hayashi is a notable inventor based in Shiga-ken, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the area of vinyl chloride polymerization. With a total of 2 patents to his name, Hayashi's work has had a considerable impact on the industry.

Latest Patents

Hayashi's latest patents focus on the development of dispersing stabilizers for suspension polymerization of vinyl chloride. The first patent describes a process for suspension polymerization of vinyl chloride with a carboxyl group. This stabilizer is designed to be used in a hot water charging polymerization process, producing vinyl chloride homopolymer or copolymers with excellent porosity, large bulk density, minimal coarse particles, and superior physical properties. The stabilizer comprises polyvinyl alcohol with a degree of hydrolysis between 75 to 85% by mole, an absorbance of not less than 0.1 at a wavelength of 280 nm for a 0.1% by weight aqueous solution, a carboxyl group content of 0.01 to 0.15% by mole, and a cloud point of not less than 50°C for the same solution.

Career Highlights

Shunro Hayashi is currently employed at Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha, a leading company in the chemical industry. His work at this organization has allowed him to further his research and development in polymer chemistry, contributing to innovative solutions in the field.

Collaborations

Hayashi has collaborated with esteemed colleagues such as Masaru Saeki and Kizo Onishi. These partnerships have fostered a collaborative environment that enhances the innovation process and leads to groundbreaking advancements in polymer technology.

Conclusion

Shunro Hayashi's contributions to polymer chemistry, particularly in the area of vinyl chloride polymerization, highlight his role as a significant inventor in the field. His patents and collaborations reflect a commitment to innovation and excellence in chemical research.