Heavy Metal Bonded Directly To Unsaturated Five-membered Carbocyclic Ring Patents (Class 556/11)
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Patent number: 5703257Abstract: A process for preparing bridged mono- and bis(cyclopentadienyl) metal dihydrocarbyloxy coordination complexes (I) by contacting in the presence of an aprotic organic diluent a metal compound of the formula M(OR).sub.4 with a dianionic salt compound. A process for preparing bridged mono- and bis(cyclopentadienyl) dihydrocarbyl metal coordination complexes (II) by contacting a complex (I) with a hydrocarbylation agent. A process for preparing bridged mono- and bis(cyclopentadienyl) metal dihalide coordination complexes (III) by contacting a complex (I) with a halogenation agent.Type: GrantFiled: June 6, 1995Date of Patent: December 30, 1997Assignee: The Dow Chemical CompanyInventors: Robert K. Rosen, Brian W.S. Kolthammer
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Patent number: 5700896Abstract: Propylene isoblock polymers with 0.5 to 10 mol %, based on the total polymer, of randomly distributed ethylene content and with a narrow molecular weight distribution and rubber-like properties are obtained when propylene is polymerized using a catalyst comprising an aluminoxane and a chiral metallocene, containing bridges, of formula I: ##STR1## in which M.sup.1 is preferably hafnium or zirconium,R.sup.1 and R.sup.2 are preferably halogen (e.g. C1) atoms,R.sub.3 through R.sup.6 are hydrogen or C.sub.1 -C.sub.10 alkyl, and pair of adjacent radicals R.sup.3, R.sup.4, R.sup.5, and R.sup.6 can form an aromatic ring with the C-atoms to which they are bonded, andR.sup.7 is preferably --Si(CH.sub.3).sub.2 --Si(CH.sub.3).sub.2 --.Type: GrantFiled: June 7, 1995Date of Patent: December 23, 1997Assignee: Hoechst AktiengesellschaftInventors: Volker Dolle, Jurgen Rohrmann, Andreas Winter, Martin Antberg
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Patent number: 5696045Abstract: Polyolefins with a molecular weight distribution M.sub.w /M.sub.n .gtoreq.3.0, which may be monomodal, bimodal or multimodal, can be obtained by polymerization or copolymerization of olefins with a catalyst system consisting of an aluminoxane and a transition metal component (metallocene), in which the transition metal component consists of at least one zirconocene of the formula I and at least one zirconocene of the formula Ia ##STR1## or alternatively of at least 2 zirconocenes of the formula I.Type: GrantFiled: June 24, 1996Date of Patent: December 9, 1997Inventors: Andreas Winter, Walter Spaleck, Bernd Bachmann
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Patent number: 5693836Abstract: A process for the preparation of an olefin polymer by polymerization or copolymerization of an olefin of the formula R.sup.a --CH.dbd.CH--R.sup.b, in which R.sup.a and R.sup.b are identical or different and are a hydrogen atom or a hydrocarbon radical having 1 to 14 carbon atoms, or R.sup.a and R.sup.b, together with the atoms connecting them, can form a ring, at a temperature of from -60.degree. to 200.degree. C., at a pressure of from 0.5 to 100 bar, in solution, in suspension or in the gas phase, in the presence of a catalyst formed from a metallocene in the meso-form or a meso:rac mixture, with meso:rac>1:99, as transition-metal compound and a cocatalyst, wherein the metallocene is a compound of the formula I, ##STR1## in which M.sup.1 is Zr or Hf, R.sup.1 and R.sup.2 are identical or different and are methyl or chlorine, R.sup.3 and R.sup.6 are identical or different and are methyl, isopropyl, phenyl, ethyl or trifluoromethyl, R.sup.4 and R.sup.5 are hydrogen or as defined for R.sup.3 and R.sup.Type: GrantFiled: June 7, 1995Date of Patent: December 2, 1997Assignee: Hoechst AktiengesellschaftInventors: Andreas Winter, Martin Antberg, Bernd Bachmann, Volker Dolle, Frank Kuber, Jurgen Rohrmann, Walter Spaleck
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Patent number: 5688880Abstract: Metal complexes useful as olefin polymerization catalysts corresponding to the formula: ##STR1## wherein: L is a delocalized, .pi.-bonded group that is bound to M, containing up to 50 nonhydrogen atoms;M is a metal of Group 3, 4 or the Lanthanide series of the Periodic Table of the Elements;Z is a covalently bound, divalent substituent of up to 50 non-hydrogen atoms having the formula, --(ER.sub.2).sub.m --, wherein E independently each occurrence is carbon, silicon or germanium, R independently each occurrence is selected from the group consisting of C.sub.1-20 hydrocarbyl, and C.sub.1-20 hydrocarbyloxy, with the proviso that in at least one occurrence R is C.sub.Type: GrantFiled: December 11, 1995Date of Patent: November 18, 1997Assignee: The Dow Chemical CompanyInventors: Lee Spencer, Peter N. Nickias
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Patent number: 5679814Abstract: Metallocenes, such as silicon bridged ansa-metallocenes, are purified by heating a slurry of the metallocene at elevated temperature in an aprotic, polar solvent so as to extract impurities from the metallocene into the solvent and then separating the impurity containing solvent from the metallocene.Type: GrantFiled: December 11, 1995Date of Patent: October 21, 1997Assignee: Albemarle CorporationInventors: Jamie R. Strickler, John M. Power
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Patent number: 5679816Abstract: Biscyclopentadienyl, Group 4 transition metal complexes containing a conjugated diene ligand group wherein the diene is bound to the transition metal either in the form of .sigma.-complex or a .pi.-complex are readily prepared by reacting in any order:a) a Group 4 metal salt corresponding to the formula M'X.sub.3 or M"X.sub.4, or a Lewis base adduct thereof,b) a conjugated diene, D',c) a reducing agent, andd) a compound of the formula: CpM* or (Cp-Cp)M*n.sub.n, wherein,M' is titanium, zirconium or hafnium in the +3 formal oxidation state;M" is titanium, zirconium or hafnium in the +4 formal oxidation state;X is a halide, C.sub.1-6 hydrocarbyloxy or di(C.sub.1-6 hydrocarbyl)amido group;D' is an uncoordinated diene having the same number of carbons as D and the same substitution pattern as D;M* is a Group 1 or 2 metal cation, a Grignard reagent cation or a tri(C.sub.Type: GrantFiled: January 3, 1996Date of Patent: October 21, 1997Assignee: The Dow Chemical CompanyInventors: Francis J. Timmers, David D. Devore, David R. Neithamer
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Patent number: 5679812Abstract: A very efficient catalyst system for the polymerization of 1-olefins consists of an aluminoxane and a metallocene which is a compound of the formula I ##STR1## in which R.sup.1 and R.sup.2 denote hydrogen atoms, halogen atoms or hydrocarbon radicals and R.sup.3 and R.sup.4 are mononuclear or polynuclear hydrocarbon radicals which can form a sandwich structure with the central atom and which are linked to one another by a --R.sup.6.sub.m --R.sup.5 --R.sup.7.sub.n -- bridge containing a hetero atom and consisting of one or several members.The catalyst system produces polymers having a high molecular weight and excellent grain morphology.Type: GrantFiled: June 7, 1995Date of Patent: October 21, 1997Assignee: Hoechst AktiengesellschaftInventors: Andreas Winter, Volker Dolle, Jurgen Rohrmann, Walter Spaleck
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Patent number: 5679811Abstract: A very efficient catalyst system for the polymerization of 1-olefins consists of an aluminoxane and a metallocene which is a compound of the formula I ##STR1## in which R.sup.1 and R.sup.2 denote hydrogen atoms, halogen atoms or hydrocarbon radicals and R.sup.3 and R.sup.4 are mononuclear or polynuclear hydrocarbon radicals which can form a sandwich structure with the central atom and which are linked to one another by a --R.sup.6.sub.m --R.sup.5 --R.sup.7.sub.n -- bridge containing a hetero atom and consisting of one or several members.The catalyst system produces polymers having a high molecular weight.Type: GrantFiled: May 30, 1995Date of Patent: October 21, 1997Assignee: Hoechst AktiengesellschaftInventors: Andreas Winter, Volker Dolle, Martin Antberg, Jurgen Rohrmann, Walter Spaleck
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Patent number: 5670683Abstract: Cyclopentadineyl compounds of the formula II ##STR1## and formula III ##STR2## their preparation and their use as intermediates in the preparation of metallocene complexes of the formula I.Type: GrantFiled: March 22, 1996Date of Patent: September 23, 1997Assignee: BASF AktiengesellschaftInventors: Franz Langhauser, Jurgen Kerth, Gunther Schweier, Hans-Herbert Brintzinger, Stefan Mansel
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Patent number: 5670436Abstract: The present invention relates to an unbridged metallocene compound which is suitable for olefin polymerization.Type: GrantFiled: October 6, 1995Date of Patent: September 23, 1997Assignee: Hoechst AGInventors: Hans-Friedrich Herrmann, Michael Aulbach, Frank Kuber
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Patent number: 5665850Abstract: Processes of preparing polymeric photoinitiators are disclosed. The polymers are prepared by either a hydrosilation reaction of a SiH containing siloxane or a ring opening reaction of an epoxy functional siloxane. The resulting polymeric photoinitiators are cationic polymers consisting of organometallic complex salts which are grafted onto a polyorganosiloxane backbone.Type: GrantFiled: November 14, 1996Date of Patent: September 9, 1997Assignee: Rhone-Poulenc ChimieInventor: Christian Priou
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Patent number: 5659054Abstract: Bridged monocyclopentadienyl derivatives of a Group 4 metal are prepared by contacting a corresponding bis(cyclopentadienyl) metal complex with an alkali metal derivative or alkaline earth metal derivative of a hydrocarbyl ligand R, which is optionally substituted with one or more amino, phosphino, ether, thioether, or silyl groups. The bis(cyclopentadienyl) Group 4 metal complexes can be prepared by contacting a compound corresponding to one of the formulas (Cp).sub.3 MQ.sub.n X.sub.t, (Cp).sub.2 MQ.sub.n X.sub.t+1, or CpMQ.sub.n X.sub.t+2 and a dianionic salt compound corresponding to the formula: (L.sup.+x).sub.y (Cp*-Z-Y).sup.-2 or ((LX').sup.+x).sub.y (Cp*-Z-Y).sup.-2. An addition polymerization catalyst comprising a bis(cyclopentadienyl) Group 4 metal complex and an activating cocatalyst, and an addition polymerization process using such a catalyst.Type: GrantFiled: June 6, 1995Date of Patent: August 19, 1997Assignee: The Dow Chemical CompanyInventor: David R. Wilson
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Patent number: 5654454Abstract: 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.Type: GrantFiled: May 30, 1995Date of Patent: August 5, 1997Assignee: Phillips Petroleum CompanyInventors: Bernd Peifer, Helmut G. Alt, M. Bruce Welch
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Patent number: 5646084Abstract: Compositions comprising Group 4 metal complexes containing a diene moiety and activating cocatalysts are used as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers. Vinylidene aromatic monomers, particularly styrene are polymerized to form highly syndiotactic polymers.Type: GrantFiled: May 22, 1995Date of Patent: July 8, 1997Assignee: The Dow Chemical CompanyInventors: Jasson Todd Patton, David D. Devore, Franis J. Timmers, Jorge Soto, Gregory F. Schmidt, David R. Wilson
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Patent number: 5646083Abstract: The invention relates to a process for the preparation of a bridged metallocene compound in which:(I) a bridged double ligand, reacting with a proton acceptor, is converted into a bridged double anion(II) the double anion is converted into the bridged metallocene compound through reaction with a compound of a group 4b, 5b or 6b metal from the Periodic System of Elements.reaction (II) being carried out in a liquid dispersant whicha) comprises one or more weak Lewis bases, the conjugated acid of which has a dissociation constant pK.sub.a for which the following holds:pK.sub.a .ltoreq.-2.5,b) contains at most 1 mole equivalent, relevant to the metal compound, of strong Lewis base, the conjugated acid of which has a pK.sub.a that is higher than -2.5.The invention further relates to a catalyst component for the polymerization of olefins and a process for the polymerization of olefins and a polyolefin.Type: GrantFiled: February 28, 1994Date of Patent: July 8, 1997Assignee: DSM N.V.Inventor: Johannus A.M. van Beek
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Patent number: 5646322Abstract: The invention relates to an indenyl compound of the general formulaR'Ind--M--(Cp)Q.sub.kin which the symbols have the following meanings:Ind: an indenyl groupR': a substituent, other than hydrogen, to the Ind group,Cp: a cyclopentadienyl groupM: a transition metal from group 3, 4, 5 or 6 of the Periodic System of ElementsQ: a ligand to Mand k is an integer linked to the valence of M.The invention is characterized in that the R' group is bound to the Ind group at the 2-position. The indenyl compound is a catalyst component for the polymerization of olefins.The invention also relates to polymers obtainable with such indenyl compounds.Type: GrantFiled: May 11, 1995Date of Patent: July 8, 1997Assignee: DSM N.V.Inventors: Johannus A. M. van Beek, Johannes G. de Vries, Henricus J. Arts, Radjindrakumar Persad, Gerardus H. J. van Doremaele
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Patent number: 5646323Abstract: In accordance with the present invention there is provided a cyclopentadienyl-type ligand represented by the formula ZA, wherein Z is a cyclopentadienyl-type group, wherein A is --YPR.sub.2, --YNR.sub.2, or --NR.sub.2, wherein Y is an alkylene group containing 1 to 24 carbon atoms, wherein each R is individually selected from alkyl groups containing 1 to 20 carbon atoms. Another aspect of the invention is to provide a metallocene represented by the formula ZAMX.sub.3, wherein Z and A are as described above, M is a Group IVB or VB transition metal, and X is a halide. Other aspects of the present invention include catalyst systems comprising the metallocenes and an organoaluminoxane, processes for preparing the above defined ligands, metallocenes and catalyst systems, and polymerization processes employing the catalyst systems.Type: GrantFiled: May 19, 1995Date of Patent: July 8, 1997Assignee: Phillips Petroleum CompanyInventors: Krisztina Frey, Gabriele von Massow, Helmut G. Alt, M. Bruce Welch
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Patent number: 5633394Abstract: Compounds useful as catalyst components for olefin polymerization. The compounds comprise derivatives of cyclopentadienyl complexes of the ZR or HF.Type: GrantFiled: May 3, 1994Date of Patent: May 27, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Howard C. Welborn, Jr., John A. Ewen
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Patent number: 5631202Abstract: Isospecific and/or syndiospecific catalysts and processes for the propagation of an isotactic and/or syndiotactic polymer chain derived from an ethylenically unsaturated monomer which contains 3 or more carbon atoms or is a substituted vinyl compound. The catalysts comprise a stereorigid, stereodirected and stereolocked metallocene and/or metallocene cation catalysts, characterized by having .beta. stereodirecting substituents and .alpha. stereolocking substituents such that the catalysts have overall either C.sub.s or C.sub.2 (or pseudo-C.sub.s or C.sub.2) symmetry and such that the substituents define the orientation of the growing polymer chain end and resulting in tactioselectivity of successive monomer additions. Methods are also described for the preparation and use of these unique catalysts.Type: GrantFiled: September 24, 1993Date of Patent: May 20, 1997Assignee: Montell Technology Company B.V.Inventor: John A. Ewen
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Patent number: 5631391Abstract: The invention is a catalyst system including a monocyclopentadienyl titanium compound and an alumoxane component which is highly productive for polymerizing ethylene and .alpha.-olefins to produce a high molecular weight ethylene-.alpha.-olefin copolymer having a high content of .alpha.-olefin.Type: GrantFiled: August 19, 1993Date of Patent: May 20, 1997Inventor: Jo Ann M. Canich
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Patent number: 5627293Abstract: The invention relates to ferrocenyldiphosphine ligands containing a silylene group, ferrocenyldiphosphines bound to inorganic or polymeric organic supports by this silylene group, their preparation and also their metal complexes with transition metals such as rhodium or iridium. The invention also relates to the use of these complexes for hydrogenating organic double or triple bonds, in particular olefinic double bonds and carbon-heteroatom double bonds. The complexes are particularly suitable for enantioselective hydrogenation using chiral diphosphines and prochiral unsaturated compounds.The preparation of these immobilized ferrocenyldiphosphines has only been made possible by the provision of correspondingly functionalized ferrocenyldiphosphines. These compounds and their preparation are likewise novel.Accordingly, the invention also provides compounds of the formula I ##STR1## in which R.sub.1 is C.sub.1 -C.sub.8 alkyl, phenyl or phenyl substituted by from 1 to 3 C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.Type: GrantFiled: February 23, 1996Date of Patent: May 6, 1997Assignee: Ciba-Geigy CorporationInventor: Benoit Pugin
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Patent number: 5626968Abstract: A novel photoinitiator which includes an organometallic complex salt grafted onto a polyorganosiloxane skeleton is provided.Type: GrantFiled: January 30, 1995Date of Patent: May 6, 1997Assignee: Rhone-Poulenc ChimieInventor: Christian Priou
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Patent number: 5627118Abstract: Fluorenyl-containing silyl bridged metallocenes, the process of using such metallocenes to polymerize olefins, and the resulting unusual syndiotactic polypropylene are disclosed.Type: GrantFiled: December 9, 1994Date of Patent: May 6, 1997Assignee: Phillips Petroleum CompanyInventors: Syriac J. Palackal, Helmut G. Alt, Konstantinos Patsidis, Tara G. Hill, Gil R. Hawley, Peter P. Chu, M. Bruce Welch, Rolf L. Geerts
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Patent number: 5621126Abstract: Described are certain mono(cyclopentadienyl) Group IV B metal compounds, catalyst systems comprising such mono(cyclopentadienyl) metal compounds and an activator, and to a process using such catalyst systems for the production of polyolefins, particularly ethylene-.alpha.-olefin copolymers having a high molecular weight and high level of .alpha.-olefin incorporation.Type: GrantFiled: October 15, 1993Date of Patent: April 15, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Jo Ann M. Canich, Howard W. Turner, Gregory G. Hlatky
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Patent number: 5621127Abstract: Bridged half sandwich complexes are prepared by reacting cyclopentadienides with aziridines and subsequently adding metallating agents and transition metal compounds.Type: GrantFiled: May 5, 1995Date of Patent: April 15, 1997Assignee: BASF AktiengesellschaftInventors: Franz Langhauser, Hans-Joachim M uller, J urgen Kerth, G unther Schweier, Bernhard Rieger
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Patent number: 5616748Abstract: A process for preparing titanium or zirconium hydrocarbyloxide complexes in a reduced oxidation state comprising contacting the corresponding complex in an elevated oxidation state with lithium alkyl reducing agent and recovering the resulting product.Type: GrantFiled: April 25, 1995Date of Patent: April 1, 1997Assignee: The Dow Chemical CompanyInventor: Thomas H. Newman
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Patent number: 5616747Abstract: A process for the preparation of a compound of the formula III ##STR1## comprising, deprotonating a solution or suspension of an indene of the formula I ##STR2## in a solvent or solvent mixture containing a base to give a suspension of a metallated product of the compound of formula I,adding to the suspension of the metallated product a compound of the formula IIX--R.sup.6 --X (II)and reacting the suspension of the metallated product and compound of the formula II.Type: GrantFiled: November 15, 1994Date of Patent: April 1, 1997Assignee: Hoechst AktiengesellschaftInventors: J urgen Rohrmann, Frank K uber
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Patent number: 5612462Abstract: The invention relates to a new improved process for preparing bridged stereorigid metallocenes via organomagnesium and organotin compounds.Type: GrantFiled: February 22, 1995Date of Patent: March 18, 1997Assignee: Witco GmbHInventor: Richard Lisowsky
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Patent number: 5610247Abstract: 9-substituted fluorenyl-containing metallocenes and their use in the polymerization of olefins is disclosed. In addition, novel 9-cyclohexylfluorenyl or 9-phenylfluorenyl compounds are disclosed. Also methods for preparing such 9-substituted fluorenyl compounds are presented.Type: GrantFiled: March 23, 1995Date of Patent: March 11, 1997Assignee: Phillips Petroleum CompanyInventors: Helmut G. Alt, Syriac J. Palackal, Konstantinos Patsidis, M. Bruce Welch, Rolf L. Geerts, Eric T. Hsieh, Max P. McDaniel, Gil R. Hawley, Paul D. Smith, Jay Janzen, Michael Schmid
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Patent number: 5610115Abstract: The organic carrier supported metallocene catalyst of the present invention is prepared by preparing a ligand complex of a silicone compound having at least one halogen, an alkyl group and a cycloalkane dienyl group, activating styrene polymer or styrene/divinylbenzene copolymer with a strong base including a metal atom such as Li, Na, K or Mg, reacting the activated polymer or copolymer with the ligand complex of a silicone compound so that the ligand may be supported on the activated polymer or copolymer, and reacting the organic carrier supported ligand with a compound of a transition metal of Group IVb of the Periodic Table or Lanthanides of Atomic Number 58-71. The styrene polymer or styrene/divinylbenzene copolymer may be alkylated by Friedel-Crafts alkylation before they are activated with a strong base.Type: GrantFiled: January 16, 1996Date of Patent: March 11, 1997Assignee: Samsung General Chemicals Co., Ltd.Inventors: Gazuo Soga, Hyun-joon Kim, Sang-kyun Lee, Min-chul Jung, Byung-hee Son, Wuozmi Thosiya, Irai Thakhasi, Nishida Hiroro
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Patent number: 5597935Abstract: A process of preparing in high yield ansa-metallocene complexes and rac ansa-metallocene complexes by reacting an ansa-bis-cyclopentadiene compound with a metal amide complex.Type: GrantFiled: May 15, 1995Date of Patent: January 28, 1997Assignee: University of Iowa Research FoundationInventors: Richard F. Jordan, Gary M. Diamond
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Patent number: 5594081Abstract: The present invention provides a catalyst for polymerizing an .alpha.-olefin which is capable of producing an .alpha.-olefin polymer having a high molecular weight in a high yield under the polymerization conditions including at high temperature, and a process for preparing an .alpha.-olefin polymer, which catalyst comprises a Component (A) which comprises a coordination compound having a skeleton of a metallocene compound comprising an indenyl ring or a hydroindenyl ring which is an indenyl having a six-membered portion hydrogenated as a ligand and having Ti, Zr or Hf as a metal component in combination with a Component (B) which is, for example, an alumoxane. The coordination compound is crosslinked at the six-membered rings characterized by the fact that two of the indenyl or hydroindenyl groups are crosslinked at the six-membered ring of the indenyl or hydroindenyl group.Type: GrantFiled: July 20, 1995Date of Patent: January 14, 1997Assignee: Mitsubishi Chemical CorporationInventors: Hideshi Uchino, June Endo, Toshihiko Sugano, Tomohiko Takahama, Taku Kato, Eiji Taniyama, Naoshi Iwama
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Patent number: 5594080Abstract: This invention is directed to novel catalysts the structure and activity of which can be controlled to produce a wide range of alpha olefin polymers and co-polymers, and preferably for the production of stereoblock poly alpha olefins comprising a wide range of preselected amorphous and crystalline segments for precise control of the physical properties thereof, principally elastomeric thermoplastic properties. More specifically, this invention is directed to novel catalysts and catalysts systems for producing stereoblock polypropylene comprising alternating isotactic and atactic diastereosequences, which result in a wide range of elastomeric properties. The amount and numbers of crystalline sections, the isotactic pentad content, the number and length of intermediate atactic chains and overall molecular weight are all controllable by the steric structure of the catalysts and the process conditions.Type: GrantFiled: March 24, 1994Date of Patent: January 14, 1997Assignee: Leland Stanford, Jr. UniversityInventors: Robert M. Waymouth, Geoffrey W. Coates, Elisabeth M. Hauptman
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Patent number: 5585508Abstract: The present invention relates to a polynuclear metallocene compound of the formula I ##STR1## a process for their preparation and their use as a catalyst for olefin polymerization.Type: GrantFiled: November 23, 1994Date of Patent: December 17, 1996Assignee: Hoechst AGInventors: Frank K uber, Michael Aulbach, Bernd Bachmann, Walter Spaleck, Andreas Winter
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Patent number: 5585509Abstract: Metallocene complexes of the general formula I ##STR1## where the substituents Y, M, x, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 are as described in the disclosure, and ligand systems of the general formula II ##STR2## as intermediates.Type: GrantFiled: March 1, 1995Date of Patent: December 17, 1996Assignee: BASF AktiengesellschaftInventors: Franz Langhauser, David Fischer, J urgen Kerth, G unther Schweier, Hans-Herbert Brintzinger, Elke Barsties, Werner Roell
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Patent number: 5583241Abstract: Compounds of formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.8 alkyl, phenyl or phenyl which is substituted by 1 to 3 C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy groups; R.sub.2 is a radical of formula II ##STR2## wherein R.sub.12 is C.sub.1 -C.sub.5 alkyl which is partially or completely fluorinated;R.sub.13 is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, --SiR.sub.4 R.sub.5 R.sub.6, halogen, --SO.sub.3 M, CO.sub.2 M, --PO.sub.3 M, --NR.sub.7 R.sub.8 or --[.sup..sym. NR.sub.7 R.sub.8 R.sub.9 ]X.sup..crclbar. ;m is an integer from 1 to 3, n is 0 or an integer from 1 to 4, and the sum of m+n is 1 to 5;R.sub.3, R.sub.10, R.sub.11 have each independently of one another the same meaning as R.sub.2 or are each independently of one another C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl, C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.5 -C.sub.Type: GrantFiled: September 27, 1994Date of Patent: December 10, 1996Assignee: Ciba-Geigy CorporationInventor: Felix Spindler
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Patent number: 5565592Abstract: A method is provided for forming a supported cyclopentadiene-type compound comprising contacting a cyclopentadiene-type compound containing an active halogen with an inorganic support having surface hydroxyl group. Also there is provided a method of preparing a supported metallocene comprising reacting the supported cyclopentadiene-type compound with a transition metal compound under suitable conditions. There is also provided a process for producing bridged cyclopentadiene-type ligands having a bridge having branch that has a terminal vinyl group. Also metallocenes of these ligands are provided. Still further there is provided a process for producing bridged cyclopentadiene-type ligands having a bridge having a branch that has a terminal active halogen. The resulting new ligands and supported metallocenes produced therefrom are also provided.Type: GrantFiled: March 10, 1995Date of Patent: October 15, 1996Assignee: Phillips Petroleum CompanyInventors: Konstantinos Patsidis, Bernd Peifer, Syriac J. Palackal, Helmut G. Alt, M. Bruce Welch, Rolf L. Geerts, Darryl R. Fahey, Harold R. Deck
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Patent number: 5556997Abstract: Chiral metallocenes are prepared by reacting a salt of an asymmetric bis(cyclopentadienyl) moiety containing ligand with a chelate diamine adduct of a transition, lanthanide, or actinide metal halide in an organic solvent medium so as to produce said chiral metallocene.Type: GrantFiled: April 24, 1995Date of Patent: September 17, 1996Assignee: Albemarle CorporationInventors: Jamie R. Strickler, John M. Power
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Patent number: 5554776Abstract: Metallocene complexes of the formula I ##STR1## where M is titanium, zirconium, hafnium, vanadium, niobium or tantalum,X inter alia is fluorine, chlorine, bromine, iodine or hydrogen,R.sup.1 to R.sup.6 inter alia are each hydrogen or C.sub.1 -C.sub.10 -alkyl,Z is silicon, germanium, tin or carbon,Y.sup.1 and Y.sup.2 are each ##STR2## R.sup.9 to R.sup.16 inter alia are each hydrogen or C.sub.1 -C.sub.10 -alkyl, andu, v and w are each an integer from 0 to 7, with the proviso that the sum u+v+w is .gtoreq.2, andcyclopentadienyl compounds of the formula II ##STR3## and cyclopentadienyl compound of the formula III ##STR4## as intermediates.Type: GrantFiled: October 28, 1994Date of Patent: September 10, 1996Assignee: BASF AktiengesellschaftInventors: Franz Langhauser, J urgen Kerth, G unther Schweier, Hans-Herbert Brintzinger, Stefan Mansel
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Patent number: 5543373Abstract: The present invention relates to a metallocene compound of the formula I ##STR1## which can advantageously be used as catalyst component for olefin polymerization.Type: GrantFiled: December 21, 1994Date of Patent: August 6, 1996Assignee: Hoechst AGInventors: Andreas Winter, Frank K uber, Michael Aulbach, Bernd Bachmann, Robert Klein, Klaus K uhlein, Walter Spaleck, Christian Kohlpaintner
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Patent number: 5543535Abstract: The invention relates to new bridged organotin compounds useful in preparing bridged stereorigid metallocenes via organomagnesium and organotin compounds.Type: GrantFiled: February 22, 1995Date of Patent: August 6, 1996Assignee: Witco GmbHInventor: Richard Lisowsky
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Patent number: 5541350Abstract: Disclosed is a mono- or di-amido silyldiyl bridged composition of matter useful as a catalyst component for the homo or copolymerization of olefins.Type: GrantFiled: August 16, 1995Date of Patent: July 30, 1996Assignee: Exxon Chemical Patents Inc.Inventors: Masahide Murata, Terry J. Burkhardt
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Patent number: 5539068Abstract: Novel Group 4 metal complexes containing one and only one cyclic delocalized, anionic, .pi.-bonded group wherein the metal is in the +4 formal oxidation state and having a bridged ligand structure, also referred to as constrained geometry complexes and a conjugated diene divalent anionic ligand group; catalytic derivatives of such complexes including novel zwiterionic complexes; and the use thereof as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.Type: GrantFiled: April 27, 1995Date of Patent: July 23, 1996Assignee: The Dow Chemical CompanyInventors: David D. Devore, James C. Stevens, Francis J. Timmers, Robert K. Rosen
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Patent number: 5532394Abstract: Metal complexes useful in the formation of addition polymerization catalysts of the formula: ##STR1## wherein Cp"' is a cyclopentadienyl group or substituted derivative thereof;Z is a divalent moiety comprising oxygen, nitrogen, phosphorous, boron or a member of Group 4 of the Periodic Table of Elements;Y is a linking group comprising nitrogen, phosphorus, oxygen or sulfur;M is a Group 4 metal in the +3 oxidation state; andL"' is a monovalent anionic stabilizing ligand.Type: GrantFiled: September 2, 1994Date of Patent: July 2, 1996Assignee: The Dow Chemical CompanyInventors: Robert K. Rosen, Peter N. Nickias, David D. Devore, James C. Stevens, Francis J. Timmers
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Patent number: 5532396Abstract: The invention relates to a metallocene compound of the formula I ##STR1## where the two indenyl ligands have substitution patterns different from one another. The metallocene compound can be used as catalyst component for olefin polymerization.Type: GrantFiled: December 22, 1994Date of Patent: July 2, 1996Assignee: Hoechst AktiengesellschaftInventors: Andreas Winter, Frank Kuber, Michael Aulbach, Bernd Bachmann, Robert Klein, Klaus Kuhlein, Walter Spaleck, Christian Kohlpaintner
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Patent number: 5527752Abstract: A catalyst precursor is provided which is useful, when combined with a cocatalyst, in the manufacture of polyolefins. The catalyst precursor is of the formula: ##STR1## where M is a transition metal, preferably Zr or Hf; L is a substituted or unsubstituted, .pi. bonded ligand coordinated to M, preferably a cyclopentadienyl-type ligand; Q can be the same or different and is independently selected from the group consisting of --O, --NR, --CR.sub.2 and --S; Y is either C or S; Z is selected from the group consisting of --OR, --NR.sub.2, --CR.sub.3, --SR, --SiR.sub.3, --PR.sub.Type: GrantFiled: March 29, 1995Date of Patent: June 18, 1996Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Walter T. Reichle, Frederick J. Karol, Gregory T. Whiteker
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Patent number: 5527929Abstract: Zwitterionic biscyclopentadienyl, Group 4 transition metal complexes formed with conjugated dienes useful as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.Type: GrantFiled: June 7, 1995Date of Patent: June 18, 1996Assignee: The Dow Chemical CompanyInventors: Francis J. Timmers, David D. Devore
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Patent number: 5523435Abstract: Disclosed is a process for preparing methyltransition metal compounds in which the halide metallocene precursor to be alkylated is initially charged in a hydrocarbon desired for the subsequent application, admixed with an aluminum alkyl and subsequently converted by addition of an inorganic salt into the end product: ##STR1## The reaction solution thus obtained can be freed of precipitated salts by simple filtration and directly used for polymerization, since the dialkylmetallocene is obtained in high purity and yield. If desired, it can also be isolated without problems.Type: GrantFiled: April 26, 1995Date of Patent: June 4, 1996Assignee: Witco GmbHInventor: Richard Lisowsky
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Patent number: 5514760Abstract: Catalyst systems for the polymerization of C.sub.2 -C.sub.10 -alk-1-enes contain, as active components,a) a metallocene complex of the general formula I ##STR1## where M is titanium, zirconium, hafnium, vanadium, niobium or tantalum, X is halogen or C.sub.1 -C.sub.8 -alkyl, Y is carbon, phosphorus, sulfur, silicon or germanium, Z is C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.10 -cycloalkyl or C.sub.6 -C.sub.10 -aryl, R.sup.1 and R.sup.2 are identical or different and are each C.sub.1 -C.sub.4 -alkyl, R.sup.3 to R.sup.6 are identical or different and are each hydrogen or C.sub.1 -C.sub.8 -alkyl, or two adjacent radicals R.sup.3 and R.sup.4 and R.sup.5 and R.sup.6 in each case together form a hydrocarbon ring system of 4 to 15 carbon atoms and n is 0, 1 or 2, andb) an open-chain or cyclic alumoxane compound of the general formula II or III ##STR2## where R.sup.7 is C.sub.1 -C.sub.4 -alkyl and n is from 5 to 30.Type: GrantFiled: January 19, 1995Date of Patent: May 7, 1996Assignee: BASF AktiengesellschaftInventors: Eberhard Karl, Werner Roell, Hans Brintzinger, Bernhard Rieger, Udo Stehling