Tsutomu Ando

Title: Tsutomu Ando: Innovator of PVOH Dispersant for VCM Polymerization

Introduction:

Tsutomu Ando is an accomplished inventor based in Houston, TX, recognized for his significant contributions to chemical engineering and polymer chemistry. He holds a patent that introduces a novel dispersant based on polyvinyl alcohols, demonstrating innovative applications in polymerization processes.

Latest Patents:

One of Tsutomu Ando's key patents is titled "PVOH Dispersant for VCM Polymerization." This patent outlines a dispersing agent designed for use in suspension polymerization processes, which may enhance the efficiency and effectiveness of polymer production. The dispersing agent consists of polyvinyl alcohol with specific characteristics, including a degree of hydrolysis ranging from 60 to 80 mol %, absorbance measurements of at least 0.3 at a wavelength of 320 nm, a block character of remaining ester groups between 0.4 to 0.5, and a cloud point between 35°C to 50°C in a 1 wt % aqueous solution. Notably, carbonyl groups present along the polymer chain are theorized to play a crucial role in this invention, supported by analysis through 1-H NMR spectra peaks.

Career Highlights:

Tsutomu Ando is affiliated with Sekisui Specialty Chemicals America, LLC, where he applies his expertise in polymer chemistry. His innovative approach to dispersant formulations not only enhances polymerization efficiency but also addresses specific challenges in the industry. With one patent to his name, Ando's work reflects the intersection of theoretical chemical principles and practical industrial applications.

Collaborations:

Throughout his career, Tsutomu Ando has collaborated with esteemed colleagues, including K Van Phung and Yohei Nishimura. These partnerships foster a robust environment of shared knowledge and innovation, aiding in the development and refinement of new chemical processes.

Conclusion:

Tsutomu Ando stands out as a prominent inventor in the field of polymer chemistry, with his patent on PVOH dispersant for VCM polymerization marking a significant milestone in the industry. His work not only contributes to the advancement of chemical engineering but also exemplifies the impact of collaborative research and innovative thinking within the scientific community.