Stephen Todd Cohn

Title: The Innovative Journey of Stephen Todd Cohn

Introduction

Stephen Todd Cohn, an accomplished inventor based in Reading, PA, has made significant contributions to the field of materials science with his impressive portfolio of 19 patents. His inventions primarily focus on the development of novel materials, particularly bifuran-modified polyesters that hold promise for enhanced sustainability and performance in industrial applications.

Latest Patents

Cohn's latest patents illustrate his innovative approach to creating advanced materials. One notable invention is the bifuran-modified polyester, which is created by esterifying or transesterifying a diacid component that includes 2,2'-bifuran-5,5'-dicarboxylate. This polyester boasts impressive characteristics, including an inherent viscosity of at least 0.5 g/dL, glass transition temperature (Tg) of 82° C. or higher, and a melting temperature within the range of 229° C. to 246° C. Furthermore, Cohn has developed methods for producing reinforced compositions and shaped articles using bifuran-modified polyethylene terephthalate, contributing to advancements in high-performance, sustainable materials.

Another significant patent from Cohn involves functionalized bifuran and its synthesis, which outlines a process to create a 5,5'-Di-(protected)-2,2'-bifuran. This innovative approach incorporates coupling 2-(protected)-furfural and includes detailed processes for deprotection and polymerization to generate high-performing polyesters that are both cost-effective and sustainable.

Career Highlights

Cohn's career is marked by his tenure at notable companies, including Wyeth and ExxonMobil Chemical Patents Inc., where he honed his skills in materials innovation. His expertise in polymer chemistry has allowed him to lead initiatives that bridge the gap between academic research and practical applications in industry.

Collaborations

Throughout his career, Cohn has collaborated with talented individuals such as An Thien Vu and Paige Erin Mahaney. These collaborations have further enriched his work, fostering creativity and advancing the field of polymer science.

Conclusion

Stephen Todd Cohn's dedication to innovation and sustainability in materials science has established him as a prominent figure in his field. With an impressive collection of patents and strong industry collaborations, he continues to pave the way for next-generation materials that may redefine the landscape of polyester applications. His work not only exemplifies excellence in invention but also highlights the importance of sustainability in modern industrial practices.