Tristram W Bethea

Title: Tristram W Bethea: Innovator in Polymer Chemistry

Introduction

Tristram W Bethea is a notable inventor based in Akron, OH (US), recognized for his contributions to polymer chemistry. He holds a total of 7 patents, showcasing his innovative approach to chemical processes and materials.

Latest Patents

One of his latest patents is titled "Molecular weight regulation of cis-1,4-polybutadiene using carboxylates." This patent discloses a process for regulating the molecular weight of high cis polybutadiene by polymerizing butadiene under specific conditions. The catalyst system used includes a mixture of organoaluminum compounds, organonickel compounds, and fluorine-containing compounds, with the polymerization conducted in the presence of alkali or alkaline earth metal salts of organic carboxylic acids. Another significant patent is for the "Synthesis of tributyltin lithium," where triorgano substituted-tin lithium initiators are created in a dimethyl ether solvent. This innovative approach allows for anionic polymerizations that produce fewer 1,2-vinyl repeat units, and the use of dimethyl ether simplifies the removal process due to its low boiling point.

Career Highlights

Throughout his career, Tristram has worked with prominent companies such as Firestone Tire & Rubber Company and Bridgestone Corporation. His experience in these organizations has contributed to his expertise in polymer chemistry and innovation.

Collaborations

Tristram has collaborated with notable individuals in his field, including Shingo Futamura and William L Hergenrother. These collaborations have likely enriched his research and development efforts.

Conclusion

Tristram W Bethea's work in polymer chemistry and his innovative patents highlight his significant contributions to the field. His expertise and collaborations continue to influence advancements in chemical processes and materials.