Company Filing History:
Years Active: 1990-1992
Title: Catherine T Chang: Innovator in Photosensitive Technology
Introduction
Catherine T Chang is a notable inventor based in Wilmington, DE, who has made significant contributions to the field of photosensitive technologies. With a total of seven patents to her name, she has advanced the development of electrostatic masters used in various applications, including graphic arts and printed circuit boards.
Latest Patents
Catherine's latest innovations include a **positive-working photosensitive electrostatic master with improved high resolution**. This invention features a conductive support that bears a photosensitive composition made up of multiple polymeric binders, each chosen for their specific thermal properties. By optimizing the shift in transit time of the photosensitive layer under varying humidity conditions, the master achieves remarkable image fidelity, making it ideal for applications such as color proofs and circuit board fabrication.
Another significant patent is her **high-resolution positive-working photosensitive electrostatic master** that forms conductive exposed image areas through a unique imagewise exposure process. This technology incorporates an electrically conductive substrate along with a photosensitive layer that contains an acid labile compound. Upon exposure to light, this compound decomposes to release a strong acid, facilitating the xeroprinting process. This innovation has proven beneficial for creating high-quality prints in the graphic arts field.
Career Highlights
Catherine T Chang works at E.I. du Pont de Nemours and Company, where she has developed groundbreaking technologies that intersect chemistry and engineering principles. Her expertise in polymeric materials and photosensitive formulations reflects her commitment to innovation in her field.
Collaborations
Throughout her career, Catherine has partnered with a talented team, including coworkers Graciela Beatriz Blanchet-Fincher and Curtis R Fincher. These collaborations have furthered the development of her patents and enabled shared insights into the realm of photosensitive technologies.
Conclusion
Catherine T Chang stands out as an influential inventor in the domain of photosensitive electrostatic technologies. Her patents showcase her dedication to innovation, providing essential solutions that enhance the quality of outputs in graphic arts and electronic manufacturing. As she continues to pave the way in her field, her work remains pivotal in shaping future advancements.
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