Wolfgang Kreth

Title: Wolfgang Kreth: Innovator in Composite Pigment Production

Introduction

Wolfgang Kreth is a noteworthy inventor based in Duisburg, Germany, who has made significant contributions to the field of pigment production. With a focus on enhancing processes in the manufacturing of composite pigments, Kreth has one patent to his name that reflects his innovative approach to chemistry and materials science.

Latest Patents

Kreth's patent, titled "Method of making a composite TiO.sub.2 pigment," presents a novel approach to producing composite titanium dioxide pigments that incorporate a white inert extender. This method simplifies neutralization processes and eliminates the need for extensive washing techniques. By utilizing a metatitanic acid suspension, which contains both free and combined sulfuric acid that has been purified to remove chromophoric elements, Kreth's process involves neutralizing the suspension with calcium oxide and/or barium oxide. The resulting precipitate forms a stable coprecipitate containing calcium sulfate and/or barium sulfate, achieving a weight percentage ranging from 1 to 25%.

Career Highlights

Kreth is associated with Metallgesellschaft Aktiengesellschaft, where his work focuses on refining chemical processes related to pigment production. His contributions have had a significant impact on the efficiency and quality of composite pigments used in various applications.

Collaborations

Throughout his career, Kreth has collaborated with esteemed colleagues, including Wolf-Dieter Griebler, with whom he has worked closely on research and development projects. Together, they have explored innovative methods to enhance pigment manufacturing processes.

Conclusion

Wolfgang Kreth stands out as an inventive force in the realm of composite pigments. His patented method exemplifies a successful blend of scientific innovation and practical application, promising advancements in the pigment industry while fostering collaboration with fellow inventors in the field.