Tsutomu Kawakami

Title: Tsutomu Kawakami: Innovator in Polycarbonate Production

Introduction

Tsutomu Kawakami is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the production of polycarbonate materials. His innovative methods have enhanced the quality and stability of polycarbonate, making it a valuable material in various applications.

Latest Patents

Kawakami holds a patent for a production method of polycarbonate. This method involves producing a polycarbonate that excels in hue, thermal stability, and electrolysis stability. The process includes supplying a polycarbonate obtained by a transesterification method to an extruder with vents, melting the polycarbonate, and adding an acidic compound to the molten mixture. The kneading process allows for the continuous devolatilization of low molecular weight compounds remaining in the polycarbonate. Improved results are achieved by adding water to the kneaded mixture before devolatilizing the low molecular weight compounds. He has 1 patent to his name.

Career Highlights

Kawakami is associated with Mitsubishi Gas Chemical Company, Inc., where he has been instrumental in advancing the company's research and development efforts in polymer production. His work has not only contributed to the company's success but has also positioned him as a key figure in the field of material science.

Collaborations

Throughout his career, Kawakami has collaborated with esteemed colleagues such as Katsushige Hayashi and Yuji Takeda. These collaborations have fostered innovation and have led to advancements in the production methods of polycarbonate.

Conclusion

Tsutomu Kawakami's contributions to the field of polycarbonate production highlight his innovative spirit and dedication to advancing material science. His patented methods have set new standards in the industry, showcasing the importance of research and collaboration in driving technological progress.