This inventor holds 3 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignee: Mitsui Chemicals, Inc.. Active years: 2010-2011.
Company Filing History:
Years Active: 2010-2011
Title: Innovations by Kouji Maeba in Polyisocyanate Production
Introduction
Kouji Maeba is a notable inventor based in Kamisu, Japan. He has made significant contributions to the field of polyisocyanate production, holding a total of 3 patents. His work focuses on methods and systems that enhance the efficiency and environmental sustainability of polyisocyanate production processes.
Latest Patents
Kouji Maeba's latest patents include a polyisocyanate production method and a polyisocyanate production system. The production method allows for the effective use of hydrogen chloride, which is produced as a by-product in the polyisocyanate production process. This innovation aims to reduce environmental burdens while maintaining production efficiency. The method involves a series of reactions where chlorine reacts with carbon monoxide to produce carbonyl chloride, which is then reacted with polyamine to produce polyisocyanate. Additionally, the hydrochloric gas produced is purified and oxidized to regenerate chlorine, which is reused in the process.
The apparatus for continuously producing polyisocyanate is designed to improve the yield of polyisocyanate by minimizing undesirable reactions between polyamine and polyisocyanate. This apparatus features a closed circulatory line that includes a material-mixing portion, a high-shear pump, a reactor, a liquid-feeding pump, and a cooler. By shearing the reaction solution while minimizing contact between polyamine and the solution, the formation of by-products is suppressed, leading to improved yields.
Career Highlights
Kouji Maeba is associated with Mitsui Chemicals, Inc., where he has been instrumental in advancing polyisocyanate production technologies. His innovative approaches have positioned him as a key figure in the field, contributing to both the company's success and the broader industry.
Collaborations
Kouji Maeba has collaborated with notable coworkers, including Masaaki Sasaki and Hirofumi Takahashi. Their combined expertise has fostered a productive environment for innovation and development in polyisocyanate production.
Conclusion
Kouji Maeba's contributions to polyisocyanate production through his innovative patents demonstrate his commitment to enhancing production efficiency and reducing environmental impact. His work continues to influence the industry positively.