This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignees: Dow Global Technolgoies LLC, The Dow Chemical Company. Active years: 1979-2012.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1979-2012
Title: The Innovative Contributions of David C McDonald
Introduction
David C McDonald is a notable inventor based in Midland, MI (US), recognized for his significant contributions to the field of polymer chemistry. With a total of four patents to his name, McDonald has made strides in the development of methods and products that enhance the functionality of vinyl aromatic polymers.
Latest Patents
One of McDonald's latest patents is titled "Amination of vinyl aromatic polymers with tertiary amines." This invention focuses on amination reactions and products, particularly methods for aminating vinyl aromatic polymers using tertiary amines. The process involves combining a tertiary amine with a vinyl aromatic polymer that contains benzyl chloride groups, forming a reaction mixture while maintaining a specific pH range. Another embodiment of this invention includes an aminated vinyl aromatic polymer and an ion exchange resin featuring quaternary ammonium functionality. This innovation is particularly useful for applications such as removing perchlorate ions from water sources and recovering gold cyanide from mining leach solutions.
Another significant patent is the "Method for processing effluent from chloromethylation of vinyl aromatic polymers." This method addresses the processing of effluent that includes catalysts and volatile organics resulting from the chloromethylation of vinyl aromatic polymers.
Career Highlights
Throughout his career, David C McDonald has worked with prominent companies, including The Dow Chemical Company and Dow Global Technologies LLC. His experience in these organizations has allowed him to develop and refine his innovative ideas in polymer chemistry.
Collaborations
McDonald has collaborated with esteemed colleagues such as Eugene R Moore and Roger L Briggs, contributing to the advancement of their shared field of expertise.
Conclusion
David C McDonald stands out as a significant figure in the realm of polymer innovation. His patents reflect a commitment to enhancing the utility of vinyl aromatic polymers, showcasing his expertise and dedication to advancing chemical processes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile