This inventor holds 5 USPTO granted patents. Top assignee: Desoto, Inc.. Active years: 1978-1990.
Location History:
- Hoffman Estates, IL (US) (1978)
- Mount Prospect, IL (US) (1985)
- Mt. Prospect, IL (US) (1984 - 1990)
Company Filing History:
Years Active: 1978-1990
Title: Innovations of James E. Devona
Introduction
James E. Devona is a notable inventor based in Mt. Prospect, IL (US). He has made significant contributions to the field of polymer chemistry, particularly in the development of emulsion copolymerization processes. With a total of 5 patents to his name, Devona's work has had a substantial impact on various applications, including latex paints.
Latest Patents
One of his latest patents is a semi-continuous emulsion polymerization process. This method allows for a continuous aqueous emulsion copolymerization using a single continuously stirred tank reactor. It aims to reduce the particle size distribution and the presence of oversized particles. The process involves slowly supplying the materials used in copolymerization, including the monomers, while maintaining specific conditions until the reactor is filled. The supply continues until the total supply is in the range of about 1.5 to 5 reactor volumes. The excess material is then removed and collected in separate vessels, resulting in a uniform product. This copolymerization method is particularly beneficial for latex paints, enhancing their gloss and scrub resistance.
Another significant patent involves aqueous latices with improved coating rheology. This invention focuses on an aqueous emulsion copolymer of monoethylenically unsaturated monomers. The copolymer has a glass transition temperature below 20°C and is modified to include a certain percentage of a monoethylenically unsaturated copolymerizable polyether. This modification improves the brush drag of paints made with the emulsion copolymers, and in some cases, enhances leveling as well.
Career Highlights
James E. Devona has built a successful career at Desoto, Inc., where he has been instrumental in advancing polymer technologies. His innovative approaches have led to the development of products that meet the evolving needs of the paint and coatings industry.
Collaborations
Throughout his career, Devona has collaborated with several talented individuals, including Gregory D. Shay and Martin L. Essigmann. These collaborations have fostered a creative environment that has contributed to the success of their projects.
Conclusion
James E. Devona's contributions to the field of polymer chemistry are noteworthy. His innovative patents and collaborative efforts have significantly impacted the industry, particularly in enhancing the performance of latex paints.