Toru Shiraiwa

Title: Innovations of Toru Shiraiwa in Polychloroprene Latex Technology

Introduction

Toru Shiraiwa is a notable inventor based in Itoigawa, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of polychloroprene latex. His innovative work has led to advancements that enhance the properties of latex materials used in various applications.

Latest Patents

Shiraiwa holds a patent for a polychloroprene latex, polychloroprene latex composition, and molded article. The objective of this invention is to provide a polychloroprene latex with improved rubber coagulability, resulting in a film that exhibits superior strength when dip molded. The polychloroprene latex is synthesized through the polymerization of 2-chloro-1,3-butadiene or a combination of 2-chloro-1,3-butadiene and 2,3-dichloro-1,3-butadiene. This latex has a precipitation rate ranging from 5 to 40%, calculated using a specific equation that involves the mass of the dry product and the solid matter concentration of the latex.

Career Highlights

Toru Shiraiwa is associated with Denka Company Limited, where he continues to innovate in the field of polymer materials. His work has not only contributed to the company's portfolio but has also advanced the understanding of polychloroprene latex applications in various industries.

Collaborations

Shiraiwa has collaborated with notable colleagues such as Kiyoshi Sunada and Kenji Mochizuki. Their combined expertise has fostered a productive environment for research and development in polymer technology.

Conclusion

Toru Shiraiwa's contributions to polychloroprene latex technology exemplify the impact of innovative thinking in material science. His patent reflects a commitment to enhancing the performance of latex materials, which can lead to broader applications in various fields.