Eiji Negishi

Title: Eiji Negishi: Innovator in Thermoplastic Polyurethane Foams

Introduction: Eiji Negishi, based in Funabashi, Japan, is an inventor recognized for his contribution to the field of thermoplastic polyurethanes. With a noteworthy patent to his name, Negishi is dedicated to enhancing manufacturing processes within this dynamic industry.

Latest Patents: Negishi holds a patent for the "Process for Producing Foams Based on Thermoplastic Polyurethanes." This innovative process involves several key steps: melting thermoplastic polyurethane in a first extruder, injecting a gaseous blowing agent in a second extruder, and homogenously impregnating the blowing agent into the polyurethane melt using a third extruder. The process concludes with extruding the impregnated melt through a die plate and granulating it in an underwater granulation device, resulting in foamed thermoplastic polyurethane particles.

Career Highlights: Eiji Negishi works at BASF SE Corporation, an esteemed company in the chemical industry known for its commitment to research and development. His work has bridged significant advancements in the manufacturing of polyurethane products, reflecting his expertise and dedication to innovation.

Collaborations: Throughout his career, Negishi has collaborated with esteemed colleagues, including Hans Rudolph and Etsuhiro Yamamoto. Their joint efforts contribute to advancing the technology surrounding thermoplastic polyurethanes, fostering a culture of innovation within their field.

Conclusion: Eiji Negishi's innovative approach to producing foamed thermoplastic polyurethane represents a significant achievement in materials science. His contributions, supported by collaborations with his talented coworkers, illustrate the importance of teamwork and dedication to driving advancements in the industry. As technology continues to evolve, inventors like Negishi are crucial in shaping the future of manufacturing processes.