Ulrich Schädeli

Title: Ulrich Schädeli: Innovator in Quinacridone Pigment Technology

Introduction

Ulrich Schädeli is a notable inventor based in Plasselb, Switzerland. He has made significant contributions to the field of pigment technology, particularly through his innovative processes for quinacridone pigments. His work has implications for various industries, including coatings and plastics.

Latest Patents

One of Schädeli's key patents is titled "Oxidation process for highly dispersible quinacridone pigments." This patent describes a process for the preparation of quinacridone through the oxidation of 6,13-dihydroquinacridone using hydrogen peroxide. A unique aspect of this process is the presence of a polymeric dispersant in the oxidation reaction mixture. The resulting pigment products exhibit greatly improved dispersibility compared to those where the polymeric dispersant is absent during the oxidation reaction. Schädeli holds 1 patent in this area.

Career Highlights

Throughout his career, Ulrich Schädeli has worked with prominent companies in the chemical industry. Notably, he has been associated with Ciba Specialty Chemicals Corporation and Nitrochemie Wimmis AG. His experience in these organizations has allowed him to refine his expertise in pigment technology and contribute to advancements in the field.

Collaborations

Schädeli has collaborated with several professionals in his field, including Edward E. Jaffe and Linda SnyderAllen. These collaborations have likely enriched his work and led to further innovations in pigment technology.

Conclusion

Ulrich Schädeli's contributions to the development of highly dispersible quinacridone pigments highlight his role as an innovator in the chemical industry. His patented processes and collaborations reflect a commitment to advancing pigment technology.