Norbert Kohl

Title: Norbert Kohl - Innovator in High Purity Blue Dye

Introduction

Norbert Kohl is a distinguished inventor based in Muenster, Germany. He is known for his innovative contributions to the field of dye chemistry, particularly in the development of a blue dye with exceptional purity and a positive triboelectric control effect. His work has significant implications for various applications in the dye industry.

Latest Patents

Norbert Kohl holds a patent for a blue dye characterized by its particularly high purity and positive triboelectric control effect. The patent describes a dye base sulfate and a method of making it. The dye base sulfate is produced with a residual amine content of less than 2000 ppm, as determined by HPLC. The process involves several steps, including the precipitation of the dye base through Friedel-Crafts alkylation, substitution, and hydrolysis. The dye base sulfate is then subjected to steam distillation, filtration, and drying at temperatures ranging from 50 to 180°C.

Career Highlights

Norbert Kohl is currently employed at Clariant Produkte (Deutschland) GmbH, where he continues to advance his research in dye technology. His innovative approach and dedication to quality have made him a valuable asset to the company and the industry as a whole.

Collaborations

Throughout his career, Norbert has collaborated with notable colleagues, including Eduard Michel and Ruediger Baur. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Norbert Kohl's contributions to the field of dye chemistry exemplify the impact of innovation in creating high-quality products. His work not only enhances the dye industry but also sets a standard for future developments in the field.