Masao Ishii

Title: Masao Ishii: Innovator in Maleic Anhydride Copolymers

Introduction

Masao Ishii is a notable inventor based in Suzuka, Japan. He has made significant contributions to the field of polymer chemistry, particularly with his work on maleic anhydride copolymers. His innovative approach has led to advancements that are beneficial in various industrial applications.

Latest Patents

Masao Ishii holds a patent for a maleic anhydride copolymer. This copolymer comprises maleic anhydride units, conjugated diene units, and aliphatic monoolefin units. The copolymer has a weight-average molecular weight ranging from 500 to 50,000. The molar ratio of maleic anhydride units to the sum of conjugated diene and aliphatic monoolefin units ranges from 30/70 to 90/10. Additionally, the molar ratio of conjugated diene units to aliphatic monoolefin units ranges from 5/95 to 90/10. A hydrolyzed product of this copolymer or a water-soluble maleic acid copolymer is also provided, which is advantageous for use as scale inhibitors, dispersants for calcium carbonate, or admixtures for cement and concrete. He has 1 patent to his name.

Career Highlights

Masao Ishii is currently employed at Tosoh Corporation, where he continues to develop innovative materials and solutions. His work has been instrumental in enhancing the performance of various products in the chemical industry.

Collaborations

He has collaborated with notable colleagues such as Tomoyuki Okazawa and Yoshiaki Kano, contributing to a dynamic research environment that fosters innovation.

Conclusion

Masao Ishii's contributions to the field of polymer chemistry, particularly through his patent on maleic anhydride copolymers, highlight his role as an influential inventor. His work not only advances scientific knowledge but also provides practical solutions for industrial applications.