Company Filing History:
Years Active: 1978-1980
Title: The Innovations of Hans Grassner
Introduction
Hans Grassner is a notable inventor based in Heidelberg, Germany. He has made significant contributions to the field of chemistry, particularly in the development of innovative solutions and processes. With a total of 2 patents to his name, Grassner's work has implications in various industries, including agriculture and organic synthesis.
Latest Patents
Grassner's latest patents include the preparation of aqueous solutions or fine aqueous dispersions of polyenyltriarylphosphonium salts. This process involves creating aqueous solutions from corresponding salts in organic solvents by driving off the solvent with steam, allowing part of the steam to condense. Some of these triarylphosphonium salts can be utilized directly as pesticides, while others serve as intermediates for organic syntheses, particularly in the carotenoid field. Another significant patent is the manufacture of symmetrical carotenoids, which are produced from the molecular halves of these compounds. This process involves the electrochemical oxidation of phosphonium salts in a solvent and the presence of a base, leading to the dimerization of the molecular halves with the elimination of substituted phosphine oxide.
Career Highlights
Hans Grassner is associated with BASF Aktiengesellschaft, a leading chemical company known for its innovative solutions and products. His work at BASF has allowed him to explore and develop new chemical processes that have practical applications in various sectors.
Collaborations
Throughout his career, Grassner has collaborated with notable colleagues, including Bernhard Schulz and Peter Jaeger. These collaborations have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Hans Grassner's contributions to the field of chemistry through his patents and work at BASF highlight his innovative spirit and dedication to advancing chemical processes. His inventions have the potential to impact various industries significantly.