Franz Schui

Title: Franz Schui: Innovator in Pigment Technology

Introduction

Franz Schui is a notable inventor based in Frankfurt am Main, Germany. He has made significant contributions to the field of pigment technology, holding a total of 3 patents. His work focuses on the development of new crystal polymorphs and the enhancement of the triboelectric effect in azo pigments.

Latest Patents

Franz Schui's latest patents include innovative methods for producing crystal polymorphs of C.I. Pigment Yellow 191. This invention allows for the creation of new crystal forms (beta, gamma, delta, and epsilon phases) by treating the known alpha phase with specific solvents and reprecipitating the pigment. Another significant patent involves a process for specifically influencing the triboelectric effect of azo pigments. This process is applicable in electrophotographic toners and developers, as well as in surface coatings. By adding certain cationic compounds during the pigment's coupling or laking stages, the triboelectric properties can be enhanced, making these pigments suitable for various applications, including electronic printing and colorproofing.

Career Highlights

Throughout his career, Franz Schui has worked with prominent companies such as Hoechst Aktiengesellschaft and Clariant Corporation. His experience in these organizations has allowed him to refine his expertise in pigment technology and contribute to various innovative projects.

Collaborations

Franz Schui has collaborated with notable colleagues, including Reinhold Deubel and Martin Ulrich Schmidt. These partnerships have fostered a collaborative environment that has led to advancements in their respective fields.

Conclusion

Franz Schui's contributions to pigment technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, paving the way for future innovations in pigment applications.