Company Filing History:
Years Active: 1988-1999
Title: The Innovative Contributions of Roger George Rudolph
Introduction
Roger George Rudolph, an accomplished inventor based in Wilmington, NC, has made significant strides in the field of material recovery and recycling through his innovative patents. With a total of three patents to his name, his work is instrumental in advancing sustainable practices in various industries.
Latest Patents
One of his notable inventions is the patented process for the recovery of polyester from contaminated polyester waste. This innovative method involves dissolving polyester, particularly polyethylene terephthalate, in specific solvents such as molten dimethylterephthalate, methyl-p-toluate, or dimethylisophthalate. The process efficiently separates the polyester solution from non-polyester components, making it possible to either crystallize the polyester for recovery or use the solution as a feedstock for methanolysis to produce dimethylterephthalate and alkylene glycol. The latter can further undergo hydrolysis to obtain terephthalic acid.
Additionally, Roger has developed a process for the recovery and recycling of acetic acid from the mother liquor used to oxidize para-xylene to terephthalic acid. This process involves adding an organic compound with a specific melting point and boiling point, allowing for effective recovery of acetic acid, which is vital for numerous chemical applications.
Career Highlights
Roger George Rudolph is currently associated with E.I. du Pont de Nemours and Company, a globally recognized leader in science and technology, where he continues to contribute to innovative projects that align with sustainable development goals.
Collaborations
Throughout his career, Roger has collaborated with several esteemed colleagues, including Robert E Michel and William Duke Everhart. Their combined expertise highlights the collaborative nature of innovation in the chemical engineering sector and demonstrates the importance of teamwork in pushing the boundaries of technology.
Conclusion
Roger George Rudolph’s contributions through his patents serve as a testament to his innovative spirit and commitment to environmental sustainability. His work not only enhances industrial processes but also provides solutions that can help mitigate waste and conserve resources, setting a precedent for future inventors in the field.