Zwitterionic Group VIII transition metal initiators supported by olefin ligands

Bazan, Guillermo C; Chen, Yaofeng

Zwitterionic Group VIII transition metal initiators supported by olefin ligands

Patent · Tue Oct 25 04:00:00 EDT 2011

OSTI ID:1028492

Bazan, Guillermo C ^[1]; Chen, Yaofeng ^[2]

Goleta, CA
Shanghai, CN

A zwitterionic Group VIII transition metal complex containing the simple and relatively small 3-(arylimino)-but-1-en-2-olato ligand that catalyzes the formation of polypropylene and high molecular weight polyethylene. A novel feature of this catalyst is that the active species is stabilized by a chelated olefin adduct. The present invention also provides methods of polymerizing olefin monomers using zwitterionic catalysts, particularly polypropylene and high molecular weight polyethylene.

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Research Organization:: University of California (Oakland, CA)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG03-98ER14910

Assignee:: The Regents of the University of California (Oakland, CA)

Patent Number(s):: 8,044,225

Application Number:: 11/519,618

OSTI ID:: 1028492

Country of Publication:: United States

Language:: English

References (24)

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