Thomas E Waldman

Title: Thomas E. Waldman: Innovator in Isocyanate Preparation

Introduction

Thomas E. Waldman is a distinguished inventor based in Chesterfield, MO, recognized for his significant contributions to the field of chemical processes, specifically in the preparation of isocyanates. With an impressive portfolio of four patents, Waldman's work showcases his dedication to advancing chemical methodologies and enhancing efficiency in industrial applications.

Latest Patents

Among Waldman's recent innovations are two notable patents that explore different methodologies for preparing isocyanates.

The first patent outlines a process that involves contacting carbon dioxide and a primary amine in the presence of an aprotic organic solvent. This method utilizes various bases, including phosphazene compounds and organic nitrogenous bases, to produce the ammonium carbamate salt. The process then details the reaction of this salt with an anhydride dehydrating agent, leading to the generation of isocyanate, along with the necessary recovery and recycling steps for the base and dehydrating agent.

In the second patent, Waldman presents an alternative method that emphasizes the use of phosphazine catalysts. This approach similarly combines carbon dioxide and a primary amine under specific conditions to form the ammonium carbamate salt, followed by reaction with an electrophilic or oxophilic dehydrating agent to yield isocyanate. This series of patents underlines the innovative methods Waldman has developed to enhance the synthesis of important chemical compounds.

Career Highlights

Throughout his career, Thomas E. Waldman has held positions in reputable organizations, including the well-known Monsanto Company. His experience in such leading industrial firms has provided him with a robust platform to develop his inventive processes and contribute to advancements in chemical research and production.

Collaborations

Waldman has collaborated with talented professionals like William D. McGhee and Michael K. Stern. This network of skilled coworkers has fostered an environment of innovation, helping to refine and enhance the contributions made to the chemical processing sector.

Conclusion

Thomas E. Waldman's journey as an inventor is marked by his innovative approaches to the preparation of isocyanates. With a solid patent portfolio and a career enriched by essential collaborations, Waldman's work will continue to influence the field of chemistry and inspire future innovations. His dedication to advancing chemical processes embodies the spirit of innovation that drives the industry forward.