This inventor holds 1 USPTO granted patent. Top assignee: Shin-Etsu Chemical Co., Ltd.. Active years: 1979.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1979
Title: Innovations of Yoshitaka Kiri in Polymerization Technology.
Introduction
Yoshitaka Kiri is a notable inventor based in Takada, Japan. He has made significant contributions to the field of polymerization, particularly with his innovative methods for suspension-polymerizing vinyl chloride. His work has implications for the efficiency and effectiveness of polymer production processes.
Latest Patents
Yoshitaka Kiri holds a patent for a method of suspension-polymerizing vinyl chloride. This patent describes a polymerization vessel equipped with a condenser that is charged with vinyl chloride, a suspending agent or dispersing agent, and water. The mixture undergoes preparatory stirring in the absence of a catalyst. The polymerization catalyst is added once the bubbling from the preparatory stirring subsides and stable suspended oil drops form. This method significantly reduces the blockage of the condenser caused by polymer scale deposition. Additionally, the introduction of an alkaline substance, an oxidizing substance, or an azine dye further minimizes polymer scale deposition. The operation of the condenser is ideally initiated only after the conversion rate exceeds 5% or the average value per unit hour.
Career Highlights
Yoshitaka Kiri is associated with Shin-Etsu Chemical Co., Ltd., where he has been able to apply his innovative ideas in a practical setting. His work has not only advanced the company's capabilities but has also contributed to the broader field of polymer chemistry.
Collaborations
Yoshitaka Kiri has collaborated with notable colleagues such as Shunichi Koyanagi and Shigenobu Tajima. These collaborations have likely fostered an environment of innovation and shared expertise, enhancing the development of new technologies in their field.
Conclusion
Yoshitaka Kiri's contributions to the field of polymerization, particularly through his patented method for suspension-polymerizing vinyl chloride, demonstrate his innovative spirit and commitment to advancing chemical engineering. His work continues to influence the industry and showcases the importance of research and development in creating efficient manufacturing processes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile