Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2008-03-10
2010-12-28
Lee, Rip A. (Department: 1796)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S143000, C556S140000, C556S138000, C564S004000
Reexamination Certificate
active
07858817
ABSTRACT:
This invention relates to new transition metal complexes for use in olefin polymerization and oligomerization. The active complex is a pyridine amide having a metallocenyl substituent as part of the ligand structure. The invention also relates to novel precursors for the ligand systems of such complexes obtained from metallocenyl-substituted pyridine compounds through sequences involving addition-condensation or lithium-halogen exchange (with subsequent metathesis) reactions.
REFERENCES:
patent: 6034240 (2000-03-01), La Pointe
patent: 6953764 (2005-10-01), Frazier et al.
patent: 7045583 (2006-05-01), Kuchta et al.
patent: 2006/0247483 (2006-11-01), McConville et al.
patent: 2008/0153997 (2008-06-01), Casty et al.
patent: 2009/0270622 (2009-10-01), Kesselgruber et al.
patent: 1 842 860 (2007-10-01), None
patent: 1-226894 (1989-09-01), None
patent: 2001-181292 (2001-07-01), None
patent: WO 00/59961 (2000-10-01), None
patent: WO 01/74910 (2001-10-01), None
patent: WO 02/38268 (2002-05-01), None
patent: WO 02/38628 (2002-05-01), None
patent: WO 03/040095 (2003-05-01), None
patent: WO 03/040201 (2003-05-01), None
patent: WO 03/040202 (2003-05-01), None
patent: WO 2004/024739 (2004-03-01), None
patent: WO 2007/067965 (2007-06-01), None
patent: WO 2007/113168 (2007-11-01), None
patent: WO 2007/130242 (2007-11-01), None
Cui et al., Dalton Trans., 2004, 1743-1751.
Mamane et al., J. Org. Chem., 2005, 70, 8220-8223.
P.D. Hustad et al., Continuous Production of Ethylene-Based Diblock Copolymers Using Coordinative Chain Transfer Polymerization, Macromolecules, vol. 40, No. 20, Oct. 2, 2007, pp. 7061-7064.
T.R. Boussie et al., “Nonconventional Catalysts for Isotactic Propene Polymerization in Solution Developed by Using High-Throughput-Screening Technologies”, Angew. Chem. Int. Ed., 2006, 45, pp. 3278-3283.
R.D.J. Froese et al., “Mechanism of Activation of a Hafnium Pyridyl-Amide Olefin Polymerization Catalyst: Ligand Modification by Monomer”, J. Am. Chem. Soc., 2007, 129, pp. 7831-7840.
G.J. Domski et al., “Polymerization of α-Olefins with Pyridylamidohafnium Catalysts: Living Behavior and Unexpedted Isoselectivity from a Cs-Symmetric Catalyst Precursor”, Macromolecules, 2007, 40, pp. 3510-3513.
Press Release, “Dow and Symyx Announce Discovery of New Class of Polyolefin Catalyst”, Mar. 31, 2003.
“Finding Catalysts Faster—Symyx-Dow collaboration yields new class of polyolefin catalysts”, C&En, Apr. 7, 2003, p. 10.
TRBoussie et al., “A Fully Integrated High-Throughput Screening Methodology for the Discovery of New Polyolefin Catalysts: Discovery of a New Class of High Temperature Single-Site Group (IV) Copolymerization Catalysts”, J. Am. Chem. Soc., 2003, 125, pp. 4306-4317.
Mamane et al., Convenient Access to New Chiral Ferroceno-(iso)quinolines, Journal of Organic Chemistry, 2005, vol. 70, No. 20, pp. 8220-8223.
Gibson et al., Ferrocene-Substituted Bis(imino)pyridine Iron and Cobalt Complexes: Toward Redox-Active Catalysts for the Polymerization of Ethylene, Organometallics, 2006, vol. 25, No. 8, pp. 1932-1939.
Bell Catherine L.
ExxonMobil Chemical Patents Inc.
Lee Rip A.
LandOfFree
Metallocene-substituted pyridyl amines, their metal... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Metallocene-substituted pyridyl amines, their metal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metallocene-substituted pyridyl amines, their metal... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4171944