Company Filing History:
Years Active: 1977-1983
Title: Siegfried Lutze: Innovator in Polyolefin Manufacturing
Introduction
Siegfried Lutze is a notable inventor based in Gelsenkirchen, Germany. He has made significant contributions to the field of polymer chemistry, particularly in the manufacturing processes of polyolefins. With a total of 6 patents to his name, Lutze's work has had a considerable impact on the industry.
Latest Patents
Lutze's latest patents include a process for the manufacture of polyolefins. This innovative process improves the preparation of ethylene homopolymers or copolymers of ethylene with α-olefins containing 3 to 15 carbon atoms. The method involves contacting the monomer or mixture of monomers in various phases at temperatures ranging from 20°C to 250°C and pressures between 1 to 50 bar. A mixed catalyst comprising a chlorine-containing titanium (III) compound and an organoaluminum compound is utilized, with the addition of hydrogen. The improvement lies in using a trialkylaluminum compound in a specific molar ratio to the titanium (III) compound, while also including oxygen in the polymerization mixture to regulate the mean molecular weight of the polymer.
Another significant patent focuses on the manufacture of high molecular copolymerisates of ethylene. This process results in a high molecular weight copolymer of ethylene and C3-C20 α-olefins. The molded articles produced from this copolymer exhibit impressive mechanical properties, including an ultimate tensile strength of over 200 kg per square centimeter at 120°C and an impact strength exceeding 200 kg cm/cm² at 23°C. The process employs Ziegler catalysis, characterized by a specific concentration of titanium-(III)-halide and the careful handling of the catalyst with the olefins and ethylene.
Career Highlights
Siegfried Lutze is currently associated with Ruhrchemie Aktiengesellschaft, where he continues to innovate in the field of polymer manufacturing. His expertise and contributions have positioned him as a key figure in the development of advanced polymerization techniques.
Collaborations
Lutze has collaborated with notable coworkers, including Hans-Walter Birnkraut and Hans Feichtinger. Their combined efforts have furthered advancements in polymer chemistry and manufacturing processes.
Conclusion
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