Company Filing History:
Years Active: 1993-1994
Title: Thomas W. Stambaugh: Innovator in Dimeric Cyclic Ester Production
Introduction
Thomas W. Stambaugh is a notable inventor based in Newark, DE (US). He has made significant contributions to the field of chemical engineering, particularly in the production of dimeric cyclic esters. With a total of 2 patents to his name, Stambaugh's work has advanced the methods of converting oligomers of alpha-hydroxycarboxylic acids into valuable cyclic esters.
Latest Patents
Stambaugh's latest patents include innovative processes that enhance the efficiency of cyclic ester production. One of his patents, titled "Continuous Reduced Pressure Dimeric Cyclic Ester Production," describes an improved method for converting oligomers of alpha-hydroxycarboxylic acids, such as glycolic and lactic acid, into dimeric cyclic esters like glycolide and lactide. This continuous process operates at reduced pressures and depolymerizing temperatures within a heated columnar depolymerization zone. The design allows for high production rates while minimizing thermal stress on the oligomers.
Another significant patent is the "Solventless Dimeric Cyclic Ester Distillation Process." This invention focuses on the separation and recovery of lactide from a vapor product stream without the use of solvents. The process involves condensing the vapor stream to obtain a condensate that contains the cyclic ester, which is then refined through distillation to achieve a product that is substantially free of water and other impurities.
Career Highlights
Stambaugh is currently employed at E.I. DuPont de Nemours and Company, where he continues to innovate in the field of chemical processes. His work has not only contributed to the company's advancements but has also had a broader impact on the industry.
Collaborations
Throughout his career, Stambaugh has collaborated with esteemed colleagues, including Neville Everton Drysdale and James V. Tarbell. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Thomas W. Stambaugh's contributions to the field of dimeric cyclic ester production exemplify the spirit of innovation in chemical engineering. His patents reflect a commitment to improving production processes and advancing the industry.