Patricia A Graham

Title: Patricia A. Graham: Innovator in Color-Forming Dyes

Introduction

Patricia A. Graham is a notable inventor based in Williamson, NY (US), recognized for her contributions to the field of color-forming dyes. With a total of seven patents to her name, she has made significant advancements in imaging materials.

Latest Patents

Her latest patents include a color-forming sulfonamidodiphenylamine dye precursor that produces a sulfonamido-substituted phenazine dye. This innovative precursor features sulfonamido groups in both the ortho and para positions relative to the --NH-- moiety of the sulfonamidodiphenylamine. In its oxidized form, it intramolecularly reacts to create a dye image through cross-oxidation in imaging materials. Additionally, she has developed color-forming para-sulfonamidodiphenylamines and their corresponding sulfonimide dyes, which are also useful in imaging applications. These compounds are synthesized through condensation reactions, and the sulfonimide dyes are formed by oxidizing the color-forming sulfonamidodiphenylamines using suitable oxidizing agents.

Career Highlights

Patricia works at Eastman Kodak Company, where she has been instrumental in advancing imaging technology. Her work has not only contributed to the company's portfolio but has also impacted the broader field of imaging materials.

Collaborations

Throughout her career, Patricia has collaborated with notable colleagues, including Rolf S. Gabrielsen and James E. Klijanowicz. These partnerships have fostered innovation and development in her research endeavors.

Conclusion

Patricia A. Graham's work in the field of color-forming dyes exemplifies her innovative spirit and dedication to advancing imaging technology. Her contributions continue to influence the industry and inspire future developments.