Abstract: A prepolymerized solid catalyst is prepared by reacting a suitable support base with an organoaluminum compound and then reacting that product with an activity promoting amount of water and then reacting the resulting solid cocatalyst with a metallocene and then subjecting that product to prepolymerization in the presence of hydrogen. The prepolymerized solid catalyst is useful in the polymerization of olefins.

Abstract: The present invention provides polymers of ethylene having ethyl branches, a narrow molecular weight distribution, no substantial amount of branches longer than any comonomer employed in the polymerization, and an unusually low branching to density ratio. In one embodiment the polyethylenes are substantially free of any branches having more than 2 carbon atoms, i.e. ethyl branches, and the molar percent of ethyl branches is substantially the same for molecular fractions across the molecular weight distribution. In another embodiment the polyethylenes have other branches having 3 or more carbons and the molar percent of the ethyl branches is substantially the same for molecular fractions across the molecular weight distribution.

Abstract: A catalyst system comprising an organoaluminoxane cocatalyst and a polymeric fluorenyl-containing metallocene prepared from a polymer resulting from the polymerization of a 2-vinylfluorene compound or the alkylation of a fluorene compound.

Abstract: Processes are provided that produce organo-aluminoxane compositions. Said processes comprise: desiccating a first mixture, where said first mixture comprises organo-aluminoxane molecules intermixed with a solvent, to produce a first composition, where said first composition comprises organo-aluminoxane molecules; mixing said first composition with a solvent to produce a second mixture, where said second mixture comprises organo-aluminoxane molecules and said solvent; contacting said second mixture with a insolublization agent to produce said organo-aluminoxane compositions. A polymerization process using a catalyst that comprises an organo-aluminoxane composition is also provided.

Abstract: Novel Si--N--Si bridged metallocenes of the formula [L--Si--Me.sub.2 NRSiMe.sub.2 L]MX.sub.2 wherein L is a C.sub.5 H.sub.4, C.sub.9 H.sub.6, or C.sub.13 H.sub.8 radical, R is alkyl and M is zirconium, titanium, or hafnium, and X is selected from the group consisting of chlorine, bromine, iodine, methyl and diethyl amine, are provided via a novel amine elimination reaction followed by cyclization of the ligand sphere of the amino silyl functionalized metallocene dichloride complex. Further, there is provided novel unbridged metallocene precursors of the formula [RNH--SiMe.sub.2 --L].sub.2 MX.sub.2. Such Si--N--Si bridged metallocenes in combination with an organometallic compound of metals of Group IA, IIA, and IIB form a catalyst system which is highly active in the polymerization of alpha-olefins.

Abstract: Polymeric ligands, polymeric metallocenes, and processes for preparing same are provided. The process for preparing polymeric metallocenes comprises reacting a polymeric ligand, a transition metal compound, and an alkali metal compound. In one embodiment, a process for preparing polymeric ligands comprises reacting at least one bridged cyclopentadienyl-type monomer and an initiator under polymerization conditions. In another embodiment, a polymeric ligand is represented by the formula [Q'].sub.n, wherein Q' is a unit containing at least one bridged cyclopentadienyl-type group and wherein n is 1-5000. In another embodiment, a polymeric metallocene is represented by the formula [Q"MX.sub.m ].sub.

Abstract: A polymerization process comprising contacting at least one olefin under polymerization conditions with a catalyst composition produced by combining an organoaluminoxane cocatalyst and a polymeric metallocene catalyst prepared by (1) forming a fluorine-containing polymer by (a) polymerizing a 2-vinyl fluorenyl compound or (b) polymerizing a fluorenyl compound by reacting it with chloro methyl methyl ether in the presence of zinc dichloride or aluminum trichloride; (2) reacting the fluorenyl-containing polymer with an alkali metal compound; and (3) reacting the product of step (2) with a transition metal-containing compound.

Abstract: Olefins are polymerized with a catalyst system resulting from the combination of unbridged substituted indenyl cyclopentadienyl metallocenes and an organoaluminum cocatalyst.

Abstract: A solid cocatalyst is prepared by combining (1) a first material capable of affixing an organoaluminum compound with (2) an organic liquid and then adding an organoaluminum compound and then contacting that product with water dispersed in an inert gas. Further catalyst compositions prepared from that cocatalyst and the use of such catalyst compositions to polymerize olefins is disclosed.

Abstract: Bridged fluorenyl/indenyl metallocenes having substituents at the 3 position of the indenyl and the use thereof in the polymerization of olefins are disclosed. Also a new method for preparing bridged fluorenyl/indenyl ligands wherein the indenyl has a substituent in the 3 position and the preparation of metallocenes with such ligands.

Abstract: An (organo) (omega-alkenyl) (cyclopentacarbyl) silane compound is provided. A process that produces an (organo) (omega-alkenyl) (cyclopentacarbyl) silane compound is provided. A process to polymerize olefins, especially ethylene, with a metallocene compound that comprises an (organo) (omega-alkenyl) (cyclopentacarbyl) silane compound is provided.

Abstract: An (omega-alkenyl) (cyclopentacarbyl) metallocene compound is provided. Polymerization processes therewith are also provided.

Abstract: A process for preparing polynuclear metallocenes by reacting a metallocene in which one of the cyclopentadienyl-containing radicals has a substituent having olefinic or acetylenic unsaturation with a second metallocene having a metal which comes from groups IVb to VIb of the periodic table and a metal-hydride bond. The use of the resulting metallocenes in the polymerization of olefins is disclosed, including techniques for using such metallocenes to produce solid prepolymerized metallocene-containing catalyst systems suitable for use in the polymerization of olefins.

Abstract: Unbridged metallocenes of titanium, zirconium and hafnium having an unsubstituted cyclopentadienyl radical and an indenyl radical having in at least one of the 1, 2, or 3 positions a substitutent selected from hydrocarbon radicals and trialkylsilyl radicals, and their use in the polymerization of olefins.

Abstract: Double bound metallocenes, i.e. metallocenes having a cyclopentadienyl-containing radical that is bound to a transition metal both by a pi bond and by a sigma carbon bond of a substituent of that same cyclopentadienyl-containing radical can be prepared by reducing metallocenes having a cyclopentadienyl-containing radical having at least one an unsaturated substituent. Also a process for producing polymers comprising contacting at least one olefinic monomer under suitable polymerization conditions with such double bound metallocenes.

Abstract: Processes to prepare polymeric metallocene are provided. Said processes comprise reacting a polymeric ligand, an alkali metal compound, and a transition metal-containing compound to produce said polymeric metallocene. therefor.

Abstract: A process for preparing an alkynyl fulvene group containing compound and said compound is provided. Said process comprises reacting an alkynyl ketone compound with a cyclopentadienyl-type compound.

Abstract: A process for preparing a bridged ligand, where said bridged ligand has an alkynyl group, and said bridged ligand is provided. Said process comprises reacting an alkynyl fulvene containing compound with an alkali metal salt of a cyclopentadienyl-type compound.

Abstract: A process to produce an ethylene-bridged-metallocene-transition-metal compound that has an omega-alkenyl substitution on said ethylene bridge is provided. Said process comprises: contacting a diolefin compound with a peracid compound to form an omega-alkenyl oxirane compound; contacting said omega-alkenyl oxirane compound with an organometal compound to form an organo-omega-alkenyl-alcohol compound; contacting said organo-omega-alkenyl-alcohol compound with an organosulfur compound to form an organo-omega-alkenyl-organosulfur ester compound; contacting said organo-omega-alkenyl-organosulfur ester compound with an organometal to form an orgaomega-alkenyl-organo compound; contacting said organo-omega-alkenyl-organo compound with a transition metal compound to form a organo-omega-alkenyl-organo-transition compound. Additionally, processes to polymerize olefins using these compounds is provided.

Abstract: In accordance with the present invention there is provided a process for preparing a cyclopentadienyl-type ligand comprising reacting an alkali metal compound and a fulvene-type compound to form a dianion, and then reacting the dianion with water. In accordance with another embodiment of the present invention a process for preparing a metallocene compound is provided comprising reacting an alkali metal compound, a fulvene-type compound, and a transition metal-containing compound. In another embodiment, the metallocene compound and a cocatalyst are combined to form a catalyst system. Other aspects of the invention include the cyclopentadienyl-type ligands, metallocene compounds, and catalyst systems thus produced and polymerization processes employing the catalyst systems.