This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: Nalco Chemical Company. Active years: 1976.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1976
Title: Innovations of John D Newkirk
Introduction
John D Newkirk is a notable inventor based in Downers Grove, IL (US). He has made significant contributions to the field of chemistry, particularly in the development of effective microbiocides and polymerization processes. With a total of 2 patents to his name, Newkirk's work has had a substantial impact on various industrial applications.
Latest Patents
One of Newkirk's latest patents involves the creation of alkyl polyamine microbiocides. These active microbiocides are prepared by reacting a long-chain N alkyl diamine, such as cocodiamine, with 0.5-3.0 moles of epichlorohydrin under controlled conditions. The process is then completed by terminating the active end groups through a reaction with 0.5-3.0 moles of a tri lower alkylamine, such as trimethylamine. The resulting poly quaternary nitrogen compounds are effective at 25 ppm levels in recirculating systems against bacteria, including A. aerogenes. Additionally, these compounds have demonstrated effectiveness against fungi, such as A. niger, in inhibition tests.
Another significant patent by Newkirk focuses on the polymerization of maleic anhydride and vinyl acetate. This process is conducted in the presence of a stabilizing agent, which is prepared by copolymerizing maleic anhydride and an alpha-olefin. This innovation has potential applications in various chemical industries.
Career Highlights
John D Newkirk is currently associated with Nalco Chemical Company, where he continues to contribute to advancements in chemical engineering and product development. His expertise in microbiocides and polymer chemistry has positioned him as a valuable asset in his field.
Collaborations
Newkirk has worked alongside his coworker, Louis A Goretta, contributing to various projects and innovations within the company.
Conclusion
John D Newkirk's contributions to the field of chemistry through his patents and work at Nalco Chemical Company highlight his innovative spirit and dedication to advancing industrial applications. His work continues to influence the development of effective chemical solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile