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Title: Zwitterionic Group VIII transition metal initiators supported by olefin ligands

Abstract

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.

Inventors:
 [1];  [2]
  1. Goleta, CA
  2. Shanghai, CN
Issue Date:
Research Org.:
University of California (Oakland, CA)
Sponsoring Org.:
USDOE
OSTI Identifier:
1028492
Patent Number(s):
8044225
Application Number:
11/519,618
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07F - ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
DOE Contract Number:  
FG03-98ER14910
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Bazan, Guillermo C, and Chen, Yaofeng. Zwitterionic Group VIII transition metal initiators supported by olefin ligands. United States: N. p., 2011. Web.
Bazan, Guillermo C, & Chen, Yaofeng. Zwitterionic Group VIII transition metal initiators supported by olefin ligands. United States.
Bazan, Guillermo C, and Chen, Yaofeng. Tue . "Zwitterionic Group VIII transition metal initiators supported by olefin ligands". United States. https://www.osti.gov/servlets/purl/1028492.
@article{osti_1028492,
title = {Zwitterionic Group VIII transition metal initiators supported by olefin ligands},
author = {Bazan, Guillermo C and Chen, Yaofeng},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {10}
}

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Works referenced in this record:

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