Lewis E Chumbley

Title: Lewis E Chumbley: Innovator in Polycarbonates and Cellulosic Sizing Agents

Introduction

Lewis E Chumbley is a notable inventor based in Lake Jackson, Texas. He has made significant contributions to the field of materials science, particularly in the development of polycarbonates and cellulosic sizing agents. With a total of 2 patents, his work has had a lasting impact on various industrial applications.

Latest Patents

Chumbley's latest patents include innovations in polycarbonates incorporating 2-methylepichlorohydrin. This thermoplastic polycarbonate is formed by reacting a carbonyl halide, such as phosgene, with a dihydric phenol and a 2-methylepichlorohydrin residue-dihydric phenol prepolymer under specific polycarbonate forming conditions. Additionally, he has developed novel cellulosic sizing agents, which are ring-opened aziridinyl homopolymers. These agents can be blended with cationic starch to create useful sizing compositions, typically employed as aqueous emulsions. His work has led to the production of paper with excellent sizing properties, showcasing the practical applications of his inventions.

Career Highlights

Lewis E Chumbley is associated with The Dow Chemical Company, where he has been able to apply his innovative ideas in a corporate setting. His contributions to the field have been recognized through his patents, which reflect his expertise and commitment to advancing material science.

Collaborations

Chumbley has collaborated with notable colleagues, including Lawrence L Sams, II and Donald A Tomalia. These partnerships have likely enriched his work and contributed to the successful development of his patented technologies.

Conclusion

Lewis E Chumbley stands out as an influential inventor in the realm of polycarbonates and cellulosic sizing agents. His innovative patents and collaborations have significantly advanced the field, demonstrating his dedication to scientific progress.