John R Rathman

Title: The Innovative Contributions of John R. Rathman

Introduction

John R. Rathman, an accomplished inventor based in Bartlesville, Oklahoma, has made significant strides in the field of polymer science. With a total of 11 patents to his name, Rathman has demonstrated a remarkable ability to create advanced materials that enhance various industrial applications. His work focuses primarily on ethylene-based polymers, leading to innovations that improve manufacturing processes and product performance.

Latest Patents

Rathman's latest patents highlight his expertise in developing blow molding polymers with improved cycle time, processability, and surface quality. One of his notable inventions includes a formulation of ethylene-based polymers characterized by a density ranging from 0.952 to 0.965 g/cm, a high load melt index (HLMI) between 5 and 25 g/10 min, and a weight-average molecular weight ranging from 275,000 to 450,000 g/mol. These polymers compare favorably with chromium-based resins in terms of processability while offering enhanced stress crack resistance, making them well-suited for large-part blow molding applications.

Additionally, Rathman has developed peroxide-treated blow molding polymers that feature increased weight swell and a constant die swell. These ethylene-based polymers are characterized by a high load melt index of less than 12 g/10 min and a weight-average molecular weight between 200,000 and 550,000 g/mol. Through his innovative processes, these polymers can be produced by peroxide-treating a bimodal molecular weight distribution dual metallocene-catalyzed resin, paving the way for the production of blow molded bottles and other products.

Career Highlights

Throughout his career, Rathman has collaborated with notable companies such as Chevron Phillips Chemical Company and Phillips Petroleum Company. His work at these organizations not only contributed to his personal development as an inventor but also advanced the capabilities of the polymer industry. Rathman's innovative spirit and dedication to research have solidified his reputation as a leading expert in his field.

Collaborations

Rathman has also worked alongside talented peers, including Yongwoo Inn and Carlos A. Cruz. These collaborations have fostered an environment of creative innovation, enabling Rathman to push the boundaries of polymer technology further. Together, they have explored ways to enhance material properties and processing techniques, resulting in cutting-edge inventions that meet the demands of modern manufacturing.

Conclusion

John R. Rathman's innovative contributions to the field of polymer science have greatly impacted the industry. His commitment to creating new materials with improved properties demonstrates the importance of continuous research and development in fostering advancements. With a robust portfolio of patents and collaborations, Rathman remains a key figure in the ongoing evolution of blow molding technologies and polymer manufacturing.