Company Filing History:
Years Active: 1977-1978
Title: Innovations of Richard Joseph Duffy
Introduction
Richard Joseph Duffy is a notable inventor based in Greenwich, CT, who has made significant contributions to the field of chemical engineering. He holds two patents that showcase his expertise in developing effective scale-inhibiting agents.
Latest Patents
Duffy's latest patents include a process for inhibiting scale formation using low molecular weight hydrolyzed polyacrylamide. This innovative process involves simultaneously and continuously charging separate streams of acrylamide monomer, ammonium persulfate as a catalyst, and mercaptoalkanoic acid as a chain transfer agent into a reaction zone containing water under reflux. The method ensures that the heat of polymerization maintains reflux without exceeding the condenser's capacity to remove the heat of reaction. The resulting polymer product is then reacted with sufficient aqueous caustic to hydrolyze 60 to 90% of the amide groups. His second patent focuses on the exceptional effectiveness of low molecular weight hydrolyzed polyacrylamide as a scale-inhibiting agent, prepared through a similar process.
Career Highlights
Duffy is associated with the American Cyanamid Company, where he has applied his innovative ideas to practical applications in the industry. His work has contributed to advancements in chemical processes and materials.
Collaborations
Some of Duffy's notable coworkers include Dae Suk Song and Charles Richard Witschonke, who have collaborated with him on various projects.
Conclusion
Richard Joseph Duffy's contributions to the field of chemical engineering through his patents demonstrate his commitment to innovation and problem-solving in scale inhibition. His work continues to influence the industry positively.