Mayumi Narushima

Title: Mayumi Narushima: Innovator in Papermaking Technology

Introduction

Mayumi Narushima is a prominent inventor based in Chiba, Japan. She has made significant contributions to the field of papermaking through her innovative patents. With a total of 2 patents, Narushima has developed solutions that enhance the efficiency and quality of paper production.

Latest Patents

Narushima's latest patents include a novel sizing composition and a papermaking additive. The sizing composition comprises a ketene dimer and a hydrophilic vinyl polymer containing an alkylmercaptan with 6-22 carbon atoms. This composition exhibits excellent storage and mechanical stability, along with a remarkable sizing effect. Additionally, her papermaking additive is designed for use in a neutral to alkaline pH region. It consists of a water-soluble copolymer that includes dimethylaminopropyl (meth)acrylamide or its quaternized product, itaconic acid or its salt, and acrylamide, with specific mole ratios to optimize performance.

Career Highlights

Mayumi Narushima is currently employed at Dic-Hercules Chemicals, Inc., where she continues to innovate in the field of papermaking. Her work focuses on developing additives that improve the quality and sustainability of paper products.

Collaborations

Throughout her career, Narushima has collaborated with notable colleagues, including Masatomi Ogawa and Kiyoshi Iwai. These partnerships have contributed to her success and the advancement of her research.

Conclusion

Mayumi Narushima is a trailblazer in papermaking technology, with her innovative patents paving the way for advancements in the industry. Her contributions are vital for enhancing the efficiency and quality of paper production.