Diimine complexes for olefin polymerization

Details Diimine complexes for olefin polymerization Diimine complexes for olefin polymerization

2006-04-04

2006-04-04

Harlan, Robert D. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S172000, C526S348000, C502S155000, C502S167000

Reexamination Certificate

active

07022785

ABSTRACT:
The present invention provides a catalyst comprising a diimine complex coordinated a transition metal. The complex includes a Group 3 to 10 transition or lanthanide metal and one or more anionic or neutral ligands in an amount that satisfies the valency of the metal such that the complex has a net zero charge. The present invention also discloses a method for coupling olefins utilizing the catalyst of the present invention.

REFERENCES:
patent: 5880241 (1999-03-01), Brookhart et al.
patent: WO 01/92342 (2001-06-01), None
patent: WO 01/92432 (2001-12-01), None
Thomas Schleis et al., “Ni(II) and Pd(II) Complexes of Camphor-derived Diazadiene Ligands: Steric Bulk Tuning and Ethylene Polymerization,” Inorganic Chemistry Communications, 1 (1998), 431-434.
Peter Belser et al., “Syntheses and Properties of Ruthenium(II) Complexes with o-Quinodiimine Ligands. Crystal and Molecular Structure of Ru(bpy)2(C6H4(NH)2) (PF6)2,” Inorg. Chem., 1981, 20, 3098-3103.
A. Alousy et al., “Solvatochromism and Piezochromism of Dicyana-, Tricyanao-, and Tetracyano-diimine-iron(II) Complexes,” Transition Metal Chemistry, 27: 244-252, 2002.

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