Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-09-13
2005-09-13
Cheung, William K. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S115000, C526S117000, C502S113000, C502S117000, C502S150000, C502S155000
Reexamination Certificate
active
06943226
ABSTRACT:
Novel compounds are provided that are useful as catalysts, particularly in the polymerization of addition polymerizable monomers such as olefinic or vinyl monomers. The compounds are multinuclear complexes of transition metals coordinated to at least one unsaturated nitrogenous ligand. Catalyst systems containing the novel compounds in combination with a catalyst activator are provided as well, as are methods of using the novel compounds in the preparation of polyolefins.
REFERENCES:
patent: 3691095 (1972-09-01), Kroll et al.
patent: 4659685 (1987-04-01), Coleman, III et al.
patent: 4727123 (1988-02-01), Weinert et al.
patent: 5032562 (1991-07-01), Lo et al.
patent: 5055438 (1991-10-01), Canich
patent: 5459117 (1995-10-01), Ewen
patent: 5525678 (1996-06-01), Mink et al.
patent: 5557023 (1996-09-01), Somogyvari et al.
patent: 5585508 (1996-12-01), Küber et al.
patent: 5693730 (1997-12-01), Küber et al.
patent: 5866663 (1999-02-01), Brookhart et al.
patent: 6069213 (2000-05-01), Nemzek et al.
patent: 6072014 (2000-06-01), Wilson, Jr.
patent: 2175159 (1996-10-01), None
patent: 2192770 (1997-06-01), None
patent: 2192771 (1997-06-01), None
patent: 241589 (1986-12-01), None
patent: 0416815 (1991-03-01), None
patent: 0739897 (1996-10-01), None
patent: 0779295 (1997-06-01), None
patent: 0779306 (1997-06-01), None
patent: WO 92/00333 (1992-01-01), None
patent: WO 97/48735 (1997-12-01), None
patent: WO 98/03521 (1998-01-01), None
patent: WO 98/27124 (1998-06-01), None
patent: WO 98/30612 (1998-07-01), None
patent: WO 98/40374 (1998-09-01), None
patent: WO 98/49208 (1998-11-01), None
patent: WO 98/12981 (1999-03-01), None
patent: WO 00/66600 (2000-11-01), None
Britovsek et al. (1997), “Cationic Methyl-Palladium(II) Complexes Containing Bidentate N ^ O and P ^ O Ligands and a Tridentate P ^ O ^ N Ligand: Synthesis, Carbonylation and Catalytic Applications in the Copolymerisation of Carbon Monoxide and Ethene,”Journal of Organometallic Chemistry533:201-212.
Desjardins et al. (1997), Single Component N-O Chelated Arylnickel(II) Complexes as Ethene Polymerisation and CO/Ethene Copolymerisation Catalysts. Examples of Ligand Induced Changes to the Reaction Pathway,Journal of Organometallic Chemistry544:163-174.
Dey et al. (1981), “Metallic Complexes as Ligands: Part II—Nickel(II) Complex of the Schiff Base Derived from 3-Formylsalicylic Acid & Theylenediamine as Ligand for Ti, Zr, Sn, P & B,”Indian J. Chem.20A:848-851.
Feldman et al. (1997), “Electrophilic Metal Precursors and a β-Diimine Ligand for Nickel(II)- and Palladium(II)-Catalyzed Ethylene Polymerization,”Organometallics16(8): 1514-1516.
Fujita et al. (1999), “Beyond Metallocenes: New Olefin Polymerization Catalysts with Exceptionally High Ethylene Polymerization Activity,”MetCon '99Presentation, Houston, TX.
Hancock et al. (1976), “Bis(2,2′-Bipyridine) and Bis(1,10-phenanthroline) Complexes of Chromium(III) and Cobalt(III),”Acta Chemica Scandinavica A30(2):79-97.
Horton (1994), “Metallocene Catalysts: Polymers by Design?,”Trends Polym. Sci.2(5):158-166.
Johnson et al. (1995), “New Pd(II)-Based Catalysts for Polymerization of Ethylene and α-Olefins,”J. Am. Chem. Soc.117(23):6414-6415.
Johnson et al. (1996), “Copolymerization of Ethylene and Propylene with Functionalized Vinyl Monomers by Palladium(II) Catalysts,”J. Am. Chem. Soc.118(1):267-268.
Katayama et al. (1995), “The Effect of Aluminum Compounds in the Copolymerization of Ethylene/α-Olefins,”Macromaol. Symp.97:109-118.
Kim et al. (1998), “[(Ph)2nacnac]MCI2(THF)2(M=Ti, V, Cr): A New Class of Homogeneous Olefin Polymerization Catalysts Featuring β-Diiminate Ligands,”Organometallics17(21):4541-4543.
Lindauer et al. (1995), “On the Aminolysis of Bis-Imidoylchlorides of Oxalic Acid. Part I. Reaction with ARomatic and Aliphatic Amines,”Journal für Praktische Chemie337:143-152.
Martin et al. (1998), “Neutral and Cationic Group 4 Metal Compounds Containing Octamethyldibenzotetraazaannulene (Me8taa2−) Ligands. Synthesis and Reactivity of (Me8taa)MX2and (Me8taa)MX+Copmlexes (M=Zr, Hf; X=Cl, Hydrocarbyl, NR2, OR),”Organometallics17(3):382-397.
Martinez-Martinez et al. (1993), “1H, 13C, 15N, 2D and Variable Temperature NMR Study of the Role of Hydrogen Bonding in the Structure and Conformation of Oxamide Derivatives,”J. Chem. Soc. Perkin Trans.2:1481-1485.
Milani et al. (1985), “Catalytic Activity of Vanadium (III) and Oxovanadium(IV) Complexes in the Ziegler-Natta Synthesis of Ethylene-Propylene Elastomers,”Inorganica Chimica Acta103:15-18.
Po et al. (1998), “Polymerization of Styrene with Nickel Complex/Methylaluminoxane Catalytic Systems,”Journal of Polymer Science: Part A: Polymer Chemistry36:3119-2126.
Uflyand et al. (1986), “Effect of Structural Features of Nitrogen- and Oxygen-Containing Chelates of Cobalt(II) on Their Activity and Stereospecificity in the Butadiene Polymerization,”Koord. Khim.12(5):685-689 (abstract only).
Wang et al. (1998), “Neutral Nickel(II)-Based Catalysts for Ethylene Polymerization,”Organometallics17(15):3149-3151.
Weidenbruch et al. (1993), “L Reaktionen von Silylenen und Disilenen mit 2,2′-Bipyridyl, Pyridin-2-aldiminen und α-Ketoiminen: Cycloadditionen versus C-H-Insertion,”Journal of Organometallic Chemistry454:35-43.
Wöhrle et al.(1983), “Polymeric Schiff's Base Chelates and Their Precursors, 4a)—Syntheses of Schiff's Base Chelates from Diaminomaleonitrile and Investigation of Their Activity for the Valence Isomerisation of Quandricyclane to Norbornadien,”Makromol. Chem.184:763-778.
Ziessel (1998), “Molecular Tailoring of Organometallic Polymers for Efficient Catalytic CO2Reduction: Mode of Formation of the Active Species,”Advances in Chemical Conversions for Mitigating Carbon Dioxide, Studies in Surface Science and Catalysis114:219-224.
Zuech (1972), “Polymerizations with Homogeneous Chromium Catalysts,”Journal of Polymer Science: Polymer Chemistry Edition10:3665-3672.
Tagge Christopher D.
Wilson Jr. Robert B.
Cheung William K.
Reed Diann E.
Reed Intellectual Property Law Group
SRI - International
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