David Daffern

Title: David Daffern: Innovator in Heat Resistant Coatings

Introduction

David Daffern is a notable inventor based in Toronto, Canada. He has made significant contributions to the field of polymer chemistry, particularly in the development of heat resistant coatings for cookware and bakeware. His innovative approach combines various chemical components to create a highly effective polyester polymer.

Latest Patents

David Daffern holds a patent for a polyester polymer and polyester-based heat resistant coating for cookware or bakeware. This polyester polymer is polymerized from an alcohol component that includes a diol and a polyol, along with an acid component that includes terephthalic acid and isophthalic acid. The unique formulation allows for a desired molar ratio of these acids, resulting in a polymer that features carboxylic acid functional groups, a weight average molecular weight (MW) of at least 5000 Daltons (Da), and an acid value (AV) ranging from 40 to 65. The resulting coating composition is water-based and is designed for substrates such as cookware, providing a highly heat resistant and flexible coating with excellent non-stick properties.

Career Highlights

David Daffern is currently employed at PPG Industries Ohio, Inc., where he continues to innovate in the field of coatings and polymers. His work has not only advanced the technology behind heat resistant coatings but has also contributed to the overall improvement of cookware performance.

Collaborations

David has collaborated with his coworker, Peter R. Jepson, to further enhance the development of innovative coating solutions. Their combined expertise has led to advancements in the application of polyester polymers in various industries.

Conclusion

David Daffern's contributions to the field of polymer chemistry, particularly through his patented heat resistant coatings, demonstrate his commitment to innovation and excellence. His work continues to impact the cookware industry positively.