Yasumi Shimizu is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of innovative crosslinking agents. With a total of 7 patents to his name, Shimizu's work has paved the way for advancements in super water-absorbent polymers.

Latest Patents

One of Shimizu's latest patents is a crosslinking agent based on linear hydroxypolyallyl ether. This allyl type crosslinking agent is designed for use in the production of super water-absorbent polymers. It comprises a linear hydroxypolyallyl ether that contains at least one hydroxyl group and at least two allyl groups. These groups are obtained through allyletherification of hydroxyl groups in a linear polyol compound, which includes erythritol, xylitol, and sorbitol. This innovative crosslinking agent is highly soluble in aqueous solvents and enables the creation of super water-absorbent polymers that exhibit exceptional water absorptivity under both atmospheric pressure and pressurized conditions.

Another notable patent involves a process for producing allyl ethers. This process entails reacting a straight-chain polyol compound with an allyl halide in the presence of an alkali metal hydroxide. The reaction occurs with water that dissolves the straight-chain polyol compound at the reaction temperature. The method allows for the addition of a specific amount of allyl halide before water is released from the reaction system, enhancing the efficiency of the production process.

Career Highlights

Yasumi Shimizu is currently employed at Daiso Co., Ltd., where he continues to innovate and develop new materials. His work has garnered attention in the field of polymer science, and he is recognized for his contributions to creating more effective and efficient materials.

Collaborations

Shimizu has collaborated with notable colleagues, including Tohru Matsutomi and Shin-ichiro Nakamura. These partnerships have further enriched his research and development efforts, leading to groundbreaking advancements in polymer technology.

Conclusion

Yasumi Shimizu's innovative work in the field of polymer chemistry has resulted in significant advancements, particularly in the area of super water-absorbent polymers. His contributions continue to influence the industry

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