This inventor holds 1 USPTO granted patent. Top assignee: E.i. Dupont De Nemours and Company. Active years: 1995.
Company Filing History:
Years Active: 1995
Title: Innovations of James R. Cavall in Polyether Glycols
Introduction
James R. Cavall is an accomplished inventor based in Newark, DE (US). He has made significant contributions to the field of polymer chemistry, particularly in the development of polyether glycols. His innovative work has led to advancements in the molecular weight distribution of these materials, which are crucial for various industrial applications.
Latest Patents
Cavall holds a patent for a process that reduces the molecular weight polydispersity of polyether glycols. This patent focuses on polyether glycols, especially poly(tetramethylene ether) glycols, which are produced with a narrow molecular weight distribution (e.g., Mw/Mn=1.2 to 1.80). The process involves separating the low molecular weight fraction using an ultrafiltration module. In this method, molten PTMEG is fed at temperatures ranging from 30°C to 150°C and pressures between 25 and 1500 psi. The resulting PTMEG retentate is characterized by a water content of less than 25 ppm and a low to negligible concentration of oligomeric cyclic ethers.
Career Highlights
Cavall is associated with E.I. du Pont de Nemours and Company, where he has been able to apply his expertise in polymer science. His work has not only contributed to the company's portfolio but has also advanced the understanding of polyether glycols in the industry. With a total of 1 patent, he has established himself as a key figure in this specialized field.
Collaborations
Throughout his career, Cavall has collaborated with notable colleagues, including Suriyanarayanan Dorai and William W. Goudie. These collaborations have fostered a productive environment for innovation and have led to further advancements in polymer technology.
Conclusion
James R. Cavall's contributions to the field of polyether glycols exemplify the impact of innovative thinking in polymer chemistry. His patent and work at E.I. du Pont de Nemours and Company highlight the importance of reducing molecular weight polydispersity for industrial applications. His achievements continue to influence the industry and inspire future innovations.