Company Filing History:
Years Active: 1981-1987
Title: The Innovative Contributions of Daniel A. Hoffner
Introduction
Daniel A. Hoffner is a notable inventor based in Thann, France. He has made significant contributions to the field of pigmentary iron oxides, holding 2 patents that showcase his innovative approaches to creating high-quality pigments. His work is characterized by a focus on reducing impurities and enhancing the quality of pigments used in various applications.
Latest Patents
Hoffner's latest patents include a method for the preparation of pigmentary red iron oxides. This process involves calcining a mixture of ferrous sulfate hydrate and an alkali metal compound, which results in pigmentary red iron oxide particulates that are essentially devoid of manganese impurities. The pigments produced range in shade from orange-reds to purplish reds. Another significant patent details a process for preparing pigment grade iron oxides from ferrous sulfate through a roasting process. This method allows for the production of red pigments characterized by pure tints and low toxic impurity concentrations, making them suitable for use in foodstuffs.
Career Highlights
Hoffner's career is marked by his dedication to advancing the field of pigment production. His innovative methods have not only improved the quality of pigments but have also addressed environmental and health concerns associated with impurities in traditional pigment production processes. His work has garnered attention in both academic and industrial circles.
Collaborations
Throughout his career, Hoffner has collaborated with esteemed colleagues such as Jean-Marie C. Trautmann and Pierre Portes. These collaborations have further enriched his research and development efforts, leading to advancements in pigment technology.
Conclusion
Daniel A. Hoffner's contributions to the field of pigmentary iron oxides exemplify the impact of innovation in industrial applications. His patents reflect a commitment to quality and safety, paving the way for future advancements in pigment production.