Company Filing History:
Years Active: 1983-1986
Title: Innovations of Yoshihiro Arai
Introduction
Yoshihiro Arai is a prominent inventor based in Joyo, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of heat-resistant polyesters. With a total of nine patents to his name, Arai's work has had a substantial impact on various industrial applications.
Latest Patents
Among his latest patents, Arai has developed a method of manufacturing shaped articles with excellent heat resistance. This invention focuses on a process where 0.2-5 weight percent epoxidized polybutadiene is reacted with a polyester made from aromatic dicarboxylic acid and a glycol ingredient with a carbon number of 2-6. The method ensures that the terminal carboxyl group quantity is maintained at 15 grams equivalent per 10^6 grams of polymer or less. Another notable patent is his method of making heat-resistant polyester with phenylene-bis-oxazoline. This method involves reacting a molten polyester, consisting of aromatic dicarboxylic acid and a glycol component of 2-6 carbons, with 0.1-5 weight percent of molten 2,2'-1,3-phenylene-bis(2-oxazoline) to reduce the end carboxyl group in the polyester to below 15 g equivalents per 10^6 g of the polymer.
Career Highlights
Yoshihiro Arai has built a successful career at Unitika Ltd., where he continues to innovate and develop new materials. His expertise in polymer chemistry has positioned him as a key figure in the industry, contributing to advancements in heat-resistant materials.
Collaborations
Arai has collaborated with notable coworkers such as Takumi Tanaka and Kazushige Kudo. Their combined efforts have led to significant advancements in the field of polymer technology.
Conclusion
Yoshihiro Arai's contributions to the development of heat-resistant polyesters highlight his innovative spirit and dedication to advancing polymer chemistry. His patents reflect a commitment to improving material properties for various applications.