Michael F Ellis

Title: Michael F Ellis - Innovator in Diaminodiphenyl Ethers

Introduction

Michael F Ellis is a notable inventor based in Hazelwood, MO (US). He has made significant contributions to the field of chemistry, particularly in the preparation of diaminodiphenyl ethers. His innovative approach has led to advancements in the synthesis of these important compounds.

Latest Patents

Michael F Ellis holds a patent for the "Preparation of diaminodiphenyl ethers." This patent describes a method for preparing diaminodiphenyl ethers (DADPE's) by refluxing sodium or potassium aminophenate with chloronitrobenzene in dimethylformamide. The reaction mixture is hydrogenated directly without isolating the intermediate product, aminophenyl-nitrophenyl ether, to form the corresponding DADPE, such as oxydianiline (ODA). The DADPE is then crystallized from the hydrogenated reaction mixture in the presence of an aliphatic alcohol, which can be added at various stages of the process. The resulting crystallized DADPE is typically of high purity and excellent color.

Career Highlights

Michael F Ellis is associated with Mallinckrodt, Inc., where he has been able to apply his expertise in chemical synthesis. His work has contributed to the development of high-quality chemical products that are essential in various applications.

Collaborations

One of his notable coworkers is Philip H Merrell. Their collaboration has likely fostered an environment of innovation and creativity, leading to advancements in their field.

Conclusion

Michael F Ellis is a distinguished inventor whose work in the preparation of diaminodiphenyl ethers has made a significant impact in the field of chemistry. His contributions continue to influence the industry and inspire future innovations.