W Ronald Darnell

Title: W Ronald Darnell: Innovator in Polymer Technology

Introduction: W Ronald Darnell, an accomplished inventor based in Weber City, Virginia, has made significant contributions to the field of polymer technology, holding a total of six patents throughout his career. His innovative work has primarily focused on enhancing the thermal stability and performance of poly(ester-ether) and poly(ether-ketone) compositions, contributing to advancements in materials science.

Latest Patents: Among his latest patents, Darnell's invention of poly(ester-ether) compositions stands out. This innovative composition is prepared by reacting a polyester, derived from a dicarboxylic acid and an aliphatic diol, with a dihydroxy aromatic compound in the presence of a metal catalyst. The resulting poly(ester-ether) compositions boast an increased glass transition temperature (Tg) and improved thermal stability, making them ideal for molded articles of various types. Additionally, his work on poly(ether-ketone) introduces a new compound with an inherent viscosity of at least 0.4, consisting of repeating units derived from specific reactants such as 1,3-bis-(4-phenoxybenzoyl)benzene and 4,4'-oxydibenzoic acid, facilitated by methanesulfonic acid and phosphorus pentoxide.

Career Highlights: Darnell has had a remarkable career, with valuable experience at prominent companies including the Eastman Kodak Company and Eastman Chemical Company. His tenure at these organizations has not only honed his skills as an inventor but also expanded his understanding of polymer applications in various industries.

Collaborations: In his journey as an inventor, Darnell has collaborated with esteemed professionals, including Winston J. Jackson, Jr. and W. J. Jackson, Jr. These collaborations have likely contributed to the depth and impact of his research and patent filings.

Conclusion: W Ronald Darnell's innovative contributions to the field of polymer technology demonstrate his dedication to advancing materials science. His six patents reflect a commitment to creating more efficient and thermally stable polymer compositions, showcasing the importance of innovation in enhancing product performance across various applications. With a solid foundation in research and collaboration, Darnell continues to be a key player in the realm of inventions and patents.