Company Filing History:
16 out of 546 
4 out of 1,645 
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Years Active: 1982-1992
Title: The Innovative Contributions of Takeshi Shibano
Introduction
Takeshi Shibano is a prominent inventor based in Yokkaichi, Japan, known for his significant contributions to the field of polymer chemistry. With a total of 17 patents to his name, Shibano has made remarkable advancements in the production of highly water absorptive polymers and acrylic acid.
Latest Patents
One of Shibano's latest patents is a process for producing a highly water absorptive polymer. This innovative process involves creating a mixture that includes a partially neutralized product of acrylic acid, a crosslinking agent, a basic vinyl monomer, a nonionic surfactant, and an oxidative radical polymerization initiator. The mixture is maintained at a temperature of 50 degrees Celsius or lower, and a second mixture containing an amine or reducing agent is added to facilitate polymerization. Another notable patent is his improved process for the production of acrylic acid, which enhances the vapor phase catalytic oxidation of propylene into acrolein and subsequently into acrylic acid. This improvement utilizes effluent gas from the second step as a diluent and specifies operational conditions to recycle combusted waste gas, resulting in a high concentration of acrylic acid and prolonged catalytic activity.
Career Highlights
Throughout his career, Takeshi Shibano has worked with notable companies such as Mitsubishi Petrochemical Company Limited and Unicharm Corporation. His work in these organizations has allowed him to apply his innovative ideas and contribute to advancements in chemical processes.
Collaborations
Shibano has collaborated with esteemed colleagues, including Kiichi Itoh and Kohei Sarumaru, to further enhance his research and development efforts in polymer chemistry.
Conclusion
Takeshi Shibano's innovative work in polymer production and chemical processes has made a significant impact in his field. His patents reflect a commitment to advancing technology and improving industrial practices.