Company Filing History:
Years Active: 1993-1994
Title: Christel Zell: Innovator in Inclusion Pigments
Introduction
Christel Zell is a prominent inventor based in Rodenbach, Germany. She has made significant contributions to the field of pigments, particularly in the development of inclusion pigments that enhance color and application processes.
Latest Patents
Christel Zell holds two notable patents. The first patent involves inclusion pigments of zirconium silicate with included chromic oxide. These pigments are designed to be discolored, utilizing zirconium silicate as a casing component and chromium (III) oxide as a discrete color compound. The pigments exhibit a D.sub.50 value ranging from 0.1 to 3.0 µm and display a brilliant light green color. Unlike non-included Cr.sub.2 O.sub.3 of the same value, these pigments can be applied without issues, maintaining sharp lines and contours. They are suitable for direct pressing and high-temperature firing processes. The second patent focuses on inclusion pigments of zirconium silicate formed with spinel inclusions. These pigments are based on zirconium silicate as a casing component and cobalt-free spinels as discrete color compounds. They are prepared by fusing a mixture of zirconium dioxide, silicon dioxide, mineralizers, and cobalt-free oxides, resulting in pigments that exhibit high enamel-fastness and color-fastness.
Career Highlights
Christel Zell has built a successful career at Degussa Aktiengesellschaft, where she has been instrumental in advancing pigment technology. Her innovative work has led to the development of pigments that are not only vibrant but also practical for various applications.
Collaborations
Christel has collaborated with notable colleagues, including Dietrich Speer and Akos Kiss, to further enhance the research and development of pigments.
Conclusion
Christel Zell's contributions to the field of inclusion pigments have established her as a key figure in pigment innovation. Her patents reflect her commitment to improving the quality and application of pigments in various industries.