Norman A Lefevre

Title: The Innovations of Norman A. Lefevre

Introduction

Norman A. Lefevre is a notable inventor based in Bay City, MI (US). He has made significant contributions to the field of polymer chemistry, holding a total of 2 patents. His work focuses on the development of copolymers and methods for processing latex resins.

Latest Patents

Lefevre's latest patents include a "Process for preparing copolymers of alpha-methylstyrene and acrylonitrile." This patent describes a method for emulsion polymerizing a first monomer stream with a specific weight ratio of alpha-methylstyrene to acrylonitrile, resulting in copolymers with improved composition uniformity. Another significant patent is the "Method for shear coagulation of latex resins," which outlines a process for recovering solids from a latex stabilized with a pH-sensitive emulsifier by using carbon dioxide to lower the pH and destabilize the latex before applying high shear.

Career Highlights

Lefevre is associated with The Dow Chemical Company, where he has been able to apply his innovative ideas in a practical setting. His work has contributed to advancements in polymer technology, enhancing the performance and application of various materials.

Collaborations

Throughout his career, Lefevre has collaborated with notable colleagues, including Eugene R. Moore and David E. Henton. These collaborations have likely fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Norman A. Lefevre's contributions to polymer chemistry through his patents and work at The Dow Chemical Company highlight his role as an influential inventor. His innovative approaches continue to impact the field and inspire future advancements in material science.