Hans-Dieter Brueckner

Title: Innovations of Hans-Dieter Brueckner

Introduction

Hans-Dieter Brueckner is a notable inventor based in Darmstadt, Germany. He has made significant contributions to the field of pigments, particularly in safety applications. With a total of 2 patents, his work showcases innovative approaches to multilayered interference pigments and reflective films.

Latest Patents

One of his latest patents is focused on a pigment for safety applications. This invention relates to a multilayered interference pigment consisting of a transparent carrier material coated with alternating layers of colorless, non-absorbent metal oxides. These metal oxides have a high and a low refractive index, with a difference of at least 0.1. The inventive pigment can be produced by alternately coating the transparent carrier material with these metal oxides using a wet method, which involves hydrolyzing water-soluble inorganic metal compounds, followed by separation, drying, and optional calcination.

Another significant patent by Brueckner involves multilayer reflective films or pigments with viewing angle-dependent reflection characteristics. This invention describes multilayer reflective films and pigments that exhibit selective reflection of light, where the reflection characteristics depend on the viewing angle. These films comprise at least one reflective layer, at least one circular polarizing layer, and optionally at least one optical retardation layer. The applications of these multilayer reflective films and pigments extend to optical elements, coatings, lacquers, inks, and security applications.

Career Highlights

Throughout his career, Hans-Dieter Brueckner has worked with prominent companies, including Merck Patent Gesellschaft mit beschränkter Haftung and Merck Patent GmbH. His experience in these organizations has contributed to his expertise in the field of pigments and coatings.

Collaborations

Brueckner has collaborated with notable coworkers such as Matthias Kuntz and David Coates. Their joint efforts have likely enhanced the innovative processes and developments in their respective projects.

Conclusion

Hans-Dieter Brueckner's contributions to the field of pigments and reflective films demonstrate his innovative spirit and dedication to safety applications. His patents reflect a deep understanding of material science and its practical applications in various industries.