Jeffrey A Gunsher

Title: The Innovative Contributions of Jeffrey A. Gunsher

Introduction

Jeffrey A. Gunsher is a notable inventor based in Midland, MI (US), recognized for his significant contributions to the field of polymer chemistry. With a total of 3 patents to his name, Gunsher has made strides in the development of polystyrene manufacturing processes that enhance the utility of this versatile material.

Latest Patents

Gunsher's latest patents focus on innovative methods for producing polystyrene with specific molecular weight characteristics. One of his patents discloses a method for making polystyrene with a molecular weight (M.sub.w) between about 1,000 and about 50,000, and a molecular weight distribution ratio (M.sub.w /M.sub.n) of less than about 8. This process involves cationically polymerizing styrene monomer under substantially isothermal conditions, where the conversion of styrene is carried out in two or more stages by contacting it with a cation generator. The resulting polystyrene product serves multiple purposes, including acting as a plasticizer for high molecular weight polystyrenes, a binder resin in various coating applications, and a precursor for further functionalized polystyrene derivatives. For instance, a polystyrene with a molecular weight of about 13,000 and a distribution ratio of about 4.9 is prepared by contacting styrene monomer with BF.sub.3 in four stages at temperatures ranging from about 60°C to about 80°C.

Career Highlights

Gunsher is currently employed at The Dow Chemical Company, where he continues to innovate and contribute to advancements in polymer technology. His work has not only enhanced the understanding of polystyrene production but has also paved the way for new applications in various industries.

Collaborations

Throughout his career, Gunsher has collaborated with esteemed colleagues, including Conrad O. Miller and Joseph L. Garner. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and the pursuit of innovative solutions.

Conclusion

Jeffrey A. Gunsher's contributions to the field of polymer chemistry, particularly in the development of polystyrene manufacturing processes, highlight his role as a significant inventor. His work at The Dow Chemical Company and collaborations with fellow innovators underscore the importance of teamwork in driving advancements in technology.