Andrew J Dunham

Title: The Innovations of Andrew J Dunham

Introduction

Andrew J Dunham is a notable inventor based in DeKalb, IL (US). He has made significant contributions to the field of polymer chemistry, particularly in the area of papermaking processes. With a total of 5 patents to his name, Dunham's work has had a lasting impact on the industry.

Latest Patents

One of his latest inventions is focused on high molecular weight zwitterionic polymers. This invention is directed to high molecular weight water-soluble zwitterionic polymers derived from zwitterionic and nonionic monomer units. These polymers are utilized in papermaking processes, enhancing the efficiency and quality of the final product. Another significant patent involves structurally rigid polymer coagulants as retention and drainage aids in papermaking. This invention concerns a method of increasing retention and drainage in a papermaking furnish by adding an effective amount of a structurally rigid polymeric coagulant, along with a flocculant and a microparticle.

Career Highlights

Dunham has worked with prominent companies in the industry, including Nalco Chemical Company and Ondeo Nalco Company. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in polymer technology.

Collaborations

Throughout his career, Dunham has collaborated with several professionals, including Phillip W Carter and Patrick G Murray. These collaborations have fostered a creative environment that has led to the development of groundbreaking inventions.

Conclusion

Andrew J Dunham's contributions to the field of polymer chemistry and papermaking are noteworthy. His innovative patents and collaborations have significantly advanced the industry, showcasing his expertise and dedication to his craft.