Company Filing History:
Years Active: 2000-2003
Title: The Innovative Contributions of Rupert Edward Von Haken Spence
Introduction
Rupert Edward Von Haken Spence is a notable inventor based in Calgary, Canada. He has made significant contributions to the field of organometallic chemistry, particularly in the development of catalysts for olefin polymerization. With a total of 10 patents to his name, Spence's work has had a profound impact on the industry.
Latest Patents
Among his latest patents is the invention of a bis-phosphinimine catalyst. This innovation involves organometallic complexes that feature two phosphinimine ligands and at least one activatable ligand, serving as catalyst components for olefin polymerization. The preferred polymerization systems are created by combining these organometallic complexes with an ionic activator and/or an alumoxane. Notably, the catalyst components often contain titanium, zirconium, or hafnium, which are activated with an ionic activator to facilitate ethylene polymerization.
Another significant patent involves hydrocarbyl phosphinimine/cyclopentadienyl complexes of group IV metals. These new group 4 organometallic complexes are characterized by having a phosphinimine ligand and two or more cyclopentadienyl ligands. Certain complexes exhibit unusual behavior when analyzed using nuclear magnetic resonance (NMR) techniques. Well-defined crystals of these inventive complexes have been isolated and analyzed through x-ray crystallography. Remarkably, these complexes have been found to be polymerization catalysts that are surprisingly more active than their simple metallocene analogs.
Career Highlights
Rupert Edward Von Haken Spence is currently employed at Nova Chemicals, a leading international company in the chemical industry. His work at Nova Chemicals has allowed him to further explore and develop innovative solutions in polymer chemistry.
Collaborations
Throughout his career, Spence has collaborated with esteemed colleagues such as Stephen John Brown and Xiaoliang Gao. These collaborations have contributed to the advancement of research and development in their respective fields.
Conclusion
Rupert Edward Von Haken Spence's contributions to organometallic chemistry and polymerization catalysis are noteworthy. His innovative patents and collaborations reflect his commitment to advancing the field and enhancing industrial applications.