Company Filing History:
Years Active: 1990
Title: Keiji Sugihara: Innovator in Ethylene Polymer Technology
Introduction
Keiji Sugihara is a prominent inventor based in Yotsukaichi, Japan. He is known for his significant contributions to the field of polymer chemistry, particularly in the development of ethylene polymers. His innovative work has led to advancements in the manufacturing processes of these materials.
Latest Patents
Sugihara holds a patent for an ethylene polymer and the process for preparing it. The patent describes a method where ethylene is polymerized, optionally with a small amount of an alpha-olefin, using a Ziegler catalyst in multiple stages. The process involves preparing three ethylene polymer components sequentially, each with specific intrinsic viscosity and alpha-olefin content requirements. This innovative approach results in an ethylene polymer that meets stringent molecular weight distribution and deactivation rate criteria.
Career Highlights
Keiji Sugihara is associated with Tosoh Corporation, a leading company in the chemical industry. His work at Tosoh has allowed him to explore and develop new polymerization techniques that enhance the properties of ethylene polymers. His expertise in this area has made him a valuable asset to the company.
Collaborations
Sugihara has collaborated with notable colleagues, including Morihiko Sato and Kaname Ohashi. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas in polymer research.
Conclusion
Keiji Sugihara's contributions to ethylene polymer technology exemplify the impact of innovative thinking in the field of chemistry. His patent and work at Tosoh Corporation highlight the importance of advancements in polymerization processes.