Robert L Bryant

Title: Innovations of Robert L. Bryant

Introduction

Robert L. Bryant is a notable inventor based in Webster Groves, MO (US). He has made significant contributions to the field of chemical engineering, particularly in the production of specialized polymers and fertilizers. With a total of four patents to his name, Bryant's work showcases his innovative approach to solving complex problems in material science.

Latest Patents

One of Bryant's latest patents is a method for producing ammonium polyphosphate. This method involves the continuous reaction of urea and polyphosphoric acid, allowing for a wide range of molecular weights in a pre-mix slurry. The process occurs under controlled temperatures of approximately 315 degrees Celsius, plus or minus 15 degrees. The slurry is reacted on a hot, continuously moving surface, forming ammonium polyphosphate in an ammonia atmosphere. The pre-mixed slurry is preferably added to a screw-type extruder, where it interacts with ammonia along the preheated moving surfaces. The resulting ammonium polyphosphate is scraped from the extrusion screw into a container with minimal handling, and the material can be ground to a finer consistency if desired.

Another significant patent by Bryant involves thermally adaptive polymers and prepolymers. This innovation is achieved through the reaction of an aromatic dianhydride with a polycyclic aromatic primary diamine at a controlled reaction rate. The result is a diamic acid dianhydride oligomer, which can serve as a precursor for an imide foam that forms at low temperatures. This foam exhibits outstanding physical characteristics and exceptional heat resistance. The diamic acid moiety can be converted to diimide, and various modifications of the oligomer are also disclosed.

Career Highlights

Bryant is currently associated with Thermal Science, Inc., where he continues to develop innovative solutions in the field of chemical engineering. His work has not only advanced the understanding of polymer chemistry but has also contributed to practical applications in various industries.

Collaborations

Throughout his career, Bryant has collaborated with notable colleagues, including John A. Parker and Rubin Feldman. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Robert L. Bryant's contributions to the field of chemical engineering through his patents and innovative methods highlight his role as a significant inventor. His work continues to influence the development of advanced materials and