This inventor holds 4 USPTO granted patents. Top assignees: Chemische Werke Huels Aktiengesellschaft, Chemische Werke Huels, Aktiengellschaft, Chemische Werke Huls Aktiengesellschaft. Active years: 1980-1985.
Company Filing History:
2 out of 125 
1 out of 1 
1 out of 283 Years Active: 1980-1985
Title: Wolfgang Zaar: Innovator in Polymer Chemistry
Introduction
Wolfgang Zaar is a notable inventor based in Marl, Germany. He has made significant contributions to the field of polymer chemistry, holding a total of 4 patents. His work primarily focuses on the isomerization of double bonds and the preparation of copolymers.
Latest Patents
One of Wolfgang Zaar's latest patents involves the isomerization of isolated double bonds to conjugated double bonds in optionally substituted cyclooctadienes. The isomerization catalyst in this process comprises a transition metal compound of the formula Me(OR.sup.1).sub.4, where Me is Ti, Zr, or Hf, and R.sup.1 is a C.sub.1-4 alkyl. Additionally, it includes an organoaluminum compound of the general formula AlR.sup.2.sub.3-n X.sub.n, where R.sup.2 is also a C.sub.1-4 alkyl. The molar ratio of the components is maintained between 0.1 to 1:1, allowing for prolonged catalyst activity at temperatures ranging from 50°C to 200°C. Another significant patent pertains to the preparation of copolymers of ethylene with at least one other 1-monoolefin and, optionally, an unconjugated diene. This process utilizes a mixed catalyst that includes a compound of a metal from Groups I-III and a compound from Subgroups IV-VI of the periodic table.
Career Highlights
Wolfgang Zaar has worked with prominent companies such as Chemische Werke Huels Aktiengesellschaft and Chemische Werke Huls Aktiengesellschaft. His career has been marked by a commitment to advancing polymer chemistry through innovative processes and methodologies.
Collaborations
Throughout his career, Wolfgang has collaborated with notable colleagues, including Gunther Maahs and Manfred Schroeder. These partnerships have contributed to the development of his patents and the advancement of research in his field.
Conclusion
Wolfgang Zaar's contributions to polymer chemistry and his innovative patents highlight his role as a significant inventor in the industry. His work continues to influence the field and inspire future advancements.