This inventor holds 2 USPTO granted patents, plus 1 CIPO patent. Top assignee: Bayer Aktiengesellschaft. Active years: 1988-1991.
Company Filing History:
Years Active: 1988-1991
Title: Johann Hohn: Innovator in Polymer Hydrogenation
Introduction
Johann Hohn is a notable inventor based in Dormagen, Germany. He has made significant contributions to the field of polymer chemistry, particularly in the hydrogenation of unsaturated polymers. With a total of 2 patents, Hohn's work has implications for the development of advanced materials.
Latest Patents
Hohn's latest patents include innovative processes that enhance the properties of nitrile rubbers. One of his patents focuses on the hydrogenation of unsaturated polymers containing nitrile groups. This process involves the use of ruthenium catalysts in a solvent comprising a low-molecular ketone and a secondary or tertiary C3-C6 alcohol. The hydrogenation products can be processed into vulcanizates with improved compression set values. Another significant patent details a process for the preparation of partially hydrogenated nitrile rubbers. This invention allows for the creation of rubbers with defined residual double bond contents ranging from 2.0% to 5.0%, with a preference for 3.0% to 4.5%.
Career Highlights
Throughout his career, Johann Hohn has worked with prominent companies in the chemical industry. Notably, he has been associated with Bayer Aktiengesellschaft and Paul C. Fiedler. His work in these organizations has allowed him to develop and refine his innovative processes.
Collaborations
Hohn has collaborated with several professionals in his field, including Joachim Thormer and Thomas Himmler. These collaborations have contributed to the advancement of his research and the successful implementation of his patented processes.
Conclusion
Johann Hohn's contributions to polymer chemistry, particularly in the hydrogenation of nitrile rubbers, showcase his innovative spirit and dedication to advancing material science. His patents reflect a commitment to improving the properties of polymers for various applications.