Company Filing History:
Years Active: 1981-1982
Title: The Innovations of Shin-ichi Shimokawa
Introduction
Shin-ichi Shimokawa is a notable inventor based in Yokkaichi, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of impact-resistant resins and rubber-modified thermoplastic resins. With a total of 2 patents, his work has advanced the capabilities of synthetic materials in various applications.
Latest Patents
Shimokawa's latest patents include a process for continuous multi-zone graft polymerization. This innovative method allows for the continuous production of an impact-resistant resin that contains 5 to 30% by weight of rubber. The process utilizes a mixture of aromatic vinyl compounds and vinyl cyanide compounds, along with ethylene-propylene-non-conjugated diene terpolymer rubber. The resulting resin exhibits excellent gloss, hardness, chemical resistance, weather resistance, and impact resistance.
Another significant patent is the process for the preparation of rubber-modified thermoplastic resins. This method involves treating ethylene-propylene-non-conjugated diene copolymer rubber with a peroxide in a solvent to create a rubber solution. The addition of vinyl monomers leads to graft-copolymerization, resulting in a resin that is free of fish eyes and resistant to delamination, while also possessing excellent mechanical properties and high weather resistance.
Career Highlights
Shimokawa is currently associated with Japan Synthetic Rubber Co., Ltd., where he continues to innovate in the field of synthetic rubber and polymers. His work has not only contributed to the advancement of materials science but has also had a significant impact on various industries that rely on durable and high-performance materials.
Collaborations
Throughout his career, Shin-ichi Shimokawa has collaborated with esteemed colleagues such as Yuji Yamamoto and Hisao Nagai. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas in the field of polymer research.
Conclusion
Shin-ichi Shimokawa's contributions to polymer chemistry and his innovative patents have significantly advanced the field of synthetic materials. His work continues to influence the development of high-performance resins that meet the demands of modern applications.