This inventor holds 12 USPTO granted patents, plus 1 CIPO patent. Top assignees: Dupont Canada Inc., E.i. Dupont De Nemours and Company, Other. Active years: 1987-2006.
Location History:
- Montreal, CA (1993 - 2002)
- Ontario, CA (2003)
- Kingston, CA (1987 - 2006)
Company Filing History:
5 out of 159 
2 out of 16,339 
5 out of 834,411 Years Active: 1987-2006
Title: The Innovations of David John Mitchell
Introduction
David John Mitchell is a prominent inventor based in Kingston, Canada, known for his significant contributions to the field of polymer chemistry. With a total of 12 patents to his name, Mitchell has developed innovative materials that enhance the performance of elastomeric compositions.
Latest Patents
Among his latest patents is the invention of random ethylene/alkyl acrylate copolymers, which are designed to exhibit improved low-temperature properties. This invention discloses random copolymers derived from ethylene and at least two different alkyl acrylate comonomers, with or without an acid cure site-containing comonomer. The copolymers are composed of 10 to 50 weight % of ethylene, 5 to 55 weight % of a first alkyl acrylate, 15 to 80 weight % of a second alkyl acrylate, and up to 7 weight % of a monoalkyl ester of 1,4-butene-dioic acid. These copolymers demonstrate lower glass transition temperatures compared to previous ethylene copolymers and maintain excellent heat and fluid resistance, making them suitable for producing cured elastomeric compositions. Additionally, he has developed compositions of elastomeric ethylene/(meth)acrylic (acid) ester copolymers combined with polylactones or polyethers.
Career Highlights
Throughout his career, David John Mitchell has worked with notable companies, including DuPont Canada Inc. His work has significantly impacted the development of advanced materials in the polymer industry.
Collaborations
Mitchell has collaborated with esteemed colleagues such as Vaclav G Zboril and Vicki Flaris, contributing to the advancement of innovative polymer technologies.
Conclusion
David John Mitchell's contributions to polymer chemistry through his patents and collaborations have established him as a key figure in the field. His innovative work continues to influence the development of advanced materials for various applications.