Tamiko Nishihira

Title: The Innovative Journey of Tamiko Nishihira

Introduction

Tamiko Nishihira is a prominent inventor based in Yamaguchi, Japan. She has made significant contributions to the field of polymer chemistry, particularly in the production of polycarbonate. Her innovative approach has led to the development of a unique process that enhances the efficiency and quality of polycarbonate production.

Latest Patents

Tamiko holds a patent for a process for producing polycarbonate. This process involves several steps, including transesterifying a dialkyl oxalate and a phenolic compound to create a diaryl oxalate. The process continues with decarbonylating the diaryl oxalate to yield a diaryl carbonate. Subsequently, the diaryl carbonate is reacted with a polyvalent hydroxyl compound in the presence of a catalyst containing an amine or ammonium compound to produce polycarbonate. The method also includes removing a phenolic by-product/amine by-product mixture and purifying the mixture to ensure that the amount of the amine by-product does not exceed 600 ppm.

Career Highlights

Tamiko Nishihira is associated with Ube Industries, Inc., where she has been instrumental in advancing research and development in polymer materials. Her work has not only contributed to the company's portfolio but has also positioned her as a key figure in the field of materials science.

Collaborations

Tamiko collaborates with esteemed colleagues such as Shuji Tanaka and Shinichi Yoshida. Their combined expertise fosters an environment of innovation and creativity, leading to groundbreaking advancements in their respective fields.

Conclusion

Tamiko Nishihira's contributions to the field of polycarbonate production exemplify her dedication to innovation and excellence. Her patented process reflects her commitment to enhancing material science, making her a notable figure in the industry.