Company Filing History:
Years Active: 1979
Title: Tsunezo Ishikawa: Innovator in Polymer Production
Introduction
Tsunezo Ishikawa is a notable inventor based in Suzuka, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the production of 1,2-polybutadiene. His innovative approach has led to advancements in the manufacturing processes of synthetic rubber.
Latest Patents
Ishikawa holds a patent for a process that enhances the production of 1,2-polybutadiene. This process involves contacting 1,3-butadiene with a specific catalyst composed of a cobalt compound, an organic phosphine compound, trialkylaluminum, and water. The addition of various halides to the reaction system allows for the regulation of the molecular weight of the resulting polymer without altering its microstructure or crystallization degree. This innovation is crucial for maintaining polymerization activity while achieving desired product characteristics.
Career Highlights
Tsunezo Ishikawa is associated with Japan Synthetic Rubber Co., Ltd., where he has applied his expertise in polymer production. His work has been instrumental in advancing the capabilities of synthetic rubber manufacturing, contributing to the industry’s growth and development.
Collaborations
Ishikawa has collaborated with notable colleagues, including Kenya Makino and Koei Komatsu. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas within the field of polymer chemistry.
Conclusion
Tsunezo Ishikawa's contributions to the production of 1,2-polybutadiene exemplify the impact of innovative thinking in the field of polymer chemistry. His patent and work at Japan Synthetic Rubber Co., Ltd. highlight the importance of advancements in manufacturing processes.