Company Filing History:
Years Active: 1976-1991
Title: The Innovative Journey of Siegfried Keifer in Color Pigments
Introduction
Siegfried Keifer, an accomplished inventor based in Krefeld, Germany, has made significant contributions to the field of color pigments. With a total of three patents to his name, his work focuses on advancing the formulations used in various industrial applications, particularly in lacquers and coatings.
Latest Patents
Siegfried's latest patents showcase his expertise in creating versatile materials. One of his noteworthy innovations is dedicated to thermostable zinc ferrite color pigments. These pigments incorporate 0.05-0.5 wt % of lithium, making them suitable for coloring a variety of applications including stoving lacquers, coil coat lacquers, plastics, sand granulates, lime sandstone, enamel, and ceramic glazes.
Another significant patent involves air pore lacquers that integrate white pigments or white fillers. This specific air pore lacquer formulation comprises a solvent, a binder, and an additive, which includes a white pigment or filler. The additive's average particle size is designed to be at least 10% smaller than the optimal size for air pore-free binders, ensuring enhanced performance. The preferred additives are rutile and anatase TiO2, which further support the lacquer's effectiveness.
Career Highlights
Siegfried Keifer works for Bayer Aktiengesellschaft, a leading global company known for its advancements in science and technology. His innovative pursuits in the realm of color pigment development have positioned him as a vital figure in his field.
Collaborations
Throughout his career, Siegfried has collaborated with notable colleagues such as Hans G. Volz and Jakob Rademachers. These partnerships have contributed greatly to advancing research and innovation within Bayer and the wider industry.
Conclusion
In summary, Siegfried Keifer stands out as an influential inventor specializing in color pigments and their applications. His patented innovations not only enhance product functionalities but also reflect his commitment to pushing the boundaries of technology in the chemical industry. With significant contributions and collaborations, he remains a key player in the continued evolution of materials science.