The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 25, 2006

Filed:

Mar. 05, 2003
Applicants:

Maurice S. Brookhart, Chapel Hill, NC (US);

Olafs Daugulis, Carrboro, NC (US);

Inventors:

Maurice S. Brookhart, Chapel Hill, NC (US);

Olafs Daugulis, Carrboro, NC (US);

Assignees:

E. I. du Pont de Nemours and Company, Wilmington, DE (US);

University of North Carolina, Chapel Hill, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/70 (2006.01); C07F 9/50 (2006.01); C07F 15/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

Late transition metal complexes of certain neutral iminophosphine ligands are useful as components of polymerization catalysts for olefins. Useful metals in the complexes include Ni, Pd, Fe and Co. Oligomers and/or polymers of olefins such as ethylene can be made.


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