Location History:
- Fukui, JP (1991)
- Tsuruga, JP (2008)
Company Filing History:
Years Active: 1991-2008
Title: **The Innovations of Tsuyoshi Matsunaga**
Introduction
Tsuyoshi Matsunaga, an accomplished inventor based in Tsuruga, Japan, has made significant contributions to the field of materials science. With a focus on advanced polyester technologies, Matsunaga holds two notable patents that showcase his innovative approaches to polymer production and application.
Latest Patents
Matsunaga's latest inventions include the "Amorphous Polyester Chip and Method for Production Thereof" and the "Method for Storage of Amorphous Polyester Chip." The amorphous polyester chip he developed exhibits superior processing abilities with a moisture content of no more than 300 ppm and a fine particle content not exceeding 500 ppm. This innovative chip comprises a main repeating unit of ethylene terephthalate and a co-monomer such as 1,4-dimethylene cyclohexane terephthalate or neopentyl terephthalate. The specific glycol composition used in the copolymerized polyester ranges from 50 to 85 mol % of ethylene glycol, 12 to 45 mol % of 1,4-cyclohexanedimethanol or neopentyl glycol, and 1.5 to 7.0 mol % of diethylene glycol. The process involves cooling the amorphous polyester obtained through melt polymerization, cutting it into chips, and subsequently drying the chips while removing fine particles.
Additionally, he invented a "Thermo-shrinkable Polyester Film" derived from a composition that includes terephthalic acid and ethylene glycol. This film achieves a heat-shrinkage ratio of 30% or more in one direction at 100°C, demonstrating its practical utility in various applications.
Career Highlights
Matsunaga is affiliated with Toyo Boseki Kabushiki Kaisha, where he has played an integral role in advancing polyester technology. His work not only enhances product quality but also contributes to the industry's overall innovation landscape.
Collaborations
Throughout his career, Matsunaga has collaborated with notable colleagues such as Yasuo Yoshinaka and Katsuaki Kuze. Together, they have worked on projects that leverage their combined expertise, leading to advancements in the materials science sector.
Conclusion
Tsuyoshi Matsunaga's contributions to the field of polymer technology, particularly through his innovative patents, highlight his role as a pioneering inventor. His work continues to influence the industry, solidifying his reputation as a key figure in the development of advanced polyester materials.