Patents Assigned to Targor GmbH
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Patent number: 6002032Abstract: The present invention relates to zwitterionic neutral transition metal compounds. The compounds are suitable as catalyst components for the polymerization of olefins.Type: GrantFiled: June 7, 1995Date of Patent: December 14, 1999Assignee: Targor GmbHInventors: Gerhard Erker, Bodo Temme, Michael Aulbach, Bernd Bachmann, Frank Kuber
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Patent number: 5990254Abstract: The present invention relates to a stereorigid metallocene compound containing, as ligands, at least two substituted or unsubstituted cyclopentadienyl groups which are bonded to one another via a monocyclic or polycyclic ring system, where at least one cyclopentadienyl group is fused to the monocyclic or polycyclic ring system, and to a process for the preparation of a cycloolefin copolymer. The cycloolefin copolymers obtained in this way have high tear strengths and are suitable for the production of extrusion parts and injection moldings.Type: GrantFiled: December 26, 1996Date of Patent: November 23, 1999Assignee: Targor GmbHInventors: Thomas Weller, Michael Aulbach, Frank Kuber, Gerhard Erker, Christian Psiorz, Bernd Bachmann, Frank Osan
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Patent number: 5990331Abstract: The present invention relates to a metallocene of the formula I, ##STR1## for preparing polyolefins, where M.sup.1 is preferably Zr, Hf or Ti, R.sup.1 and R.sup.2 are each a hydrogen atom, a C.sub.1 -C.sub.3 -alkyl group, a C.sub.1 -C.sub.3 -alkoxy group, a C.sub.6 -C.sub.8 -aryl group, a C.sub.6 -C.sub.8 -aryloxy group, a C.sub.2 -C.sub.4 -alkenyl group, a C.sub.7 -C.sub.10 -arylalkyl group, a C.sub.7 -C.sub.12 -alkylaryl group, a C.sub.8 -C.sub.12 -arylalkenyl group or chlorine, R.sup.3 is a chlorine atom, a C.sub.1 -C.sub.3 -alkyl group, a C.sub.2 -C.sub.4 -alkenyl group, a C.sub.6 -C.sub.8 -aryl group, an NR.sup.16.sub.2, SR.sup.16, OSiR.sup.16.sub.3, SiR.sup.16.sub.3 or PR.sup.16.sub.2 radical where R.sup.16 is chlorine, a C.sub.1 -C.sub.4 -alkyl group or a C.sub.6 -C.sub.8 -aryl group. R.sup.4 is a hydrogen atom, R.sup.13 is --(R.sup.14 M.sup.2 R.sup.15)--, --(R.sup.14 CR.sup.15)--(R.sup.14 CR.sup.15)--, --(R.sup.14 CR.sup.15)--(R.sup.14 M.sup.2 R.sup.15)-- or --(R.sup.14 CR.sup.15)--, where R.sup.Type: GrantFiled: October 31, 1997Date of Patent: November 23, 1999Assignee: Targor GmbHInventors: Andreas Winter, Roland Zenk, Volker Fraaije, Frank Kuber
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Patent number: 5985784Abstract: A highly effective catalyst system for the polymerization or copolymerization of olefins comprises at least one metallocene as transition-metal compound and at least one aluminum compound of the formula II ##STR1## and/or of the formula (III) ##STR2## where, in the formulae (II) and (III), the radicals R.sup.14 may be identical or different and are an alkyl group, an aryl group, benzyl or hydrogen, and p is an integer from 2 to 50, and at least one aluminum compound of the formula IV ##STR3## where R.sup.15, R.sup.16 and R.sup.17 are identical or different and are a hydrogen atom, an alkyl group, an alkylsilyl group, an alkoxy group, an aryl group, an aryloxy group, an alkenyl group, an arylalkyl group, an alkylaryl group, an arylalkenyl group, a halogen atom or a radical of the formula --OSiR.sup.15 R.sup.16 R.sup.17 where R.sup.15, R.sup.16 and R.sup.17 are as defined in the description.Type: GrantFiled: February 4, 1998Date of Patent: November 16, 1999Assignee: Targor GmbHInventors: Andreas Winter, Volker Dolle, Walter Spaleck
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Patent number: 5962719Abstract: A process for the preparation of a polyolefin wax If a catalyst consisting of an aluminoxane and a metal-locene of the formula I ##STR1## in particular R.sup.5 R.sup.6 C (Ind).sub.2 or R.sup.5 R.sup.6 C (Ind).sub.2 Zr(CH.sub.3).sub.2, is employed for the polymerization of olefins of the formulaR.sup.9 CH.dbd.CHR.sup.10(R.sup.9, R.sup.10 =H or C.sub.1 -C.sub.28 alkyl), the isotacticity of the polymer wax and hence the hardness and melting point can be varied simply by changing the polymerization temperature, without the molecular weight of the polymer being noticeably changed at the same time.Type: GrantFiled: June 5, 1995Date of Patent: October 5, 1999Assignee: Targor GmbHInventors: Andreas Winter, Jurgen Rohrmann, Volker Dolle, Martin Antberg, Walter Spaleck
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Patent number: 5962359Abstract: The present invention relates to a multinuclear metallocene compound of the formula I, ##STR1## where M.sup.1 is a tetravalent metal, L.sup.1 are, independently of one another, identical or different and are each a substituted cyclopentadienyl group, L.sup.2 and L.sup.3 are, independently of one another, identical or different and are each a .pi. ligand, B are, independently of one another, identical or different and are each a divalent bridging unit, X are, independently of one another, identical or different and are each a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.10 -fluorocarbon radical or a hydrocarbon-containing radical having 1-40 carbon atoms, and k is an integer from 0 to 10. The metallocene compound of the present invention is suitable as a catalyst component for preparing olefin polymers.Type: GrantFiled: December 22, 1995Date of Patent: October 5, 1999Assignee: Targor GmbHInventors: Michael Aulbach, Cornelia Fritze, Hans-Friedrich Herrmann, Frank Kuber, Walter Spaleck, Roland Zenk
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Patent number: 5945553Abstract: Process for preparing a methylene-bridged cyclopentadienyl compoundThe present invention relates to a process for preparing a methylene-bridged biscyclopentadienyl compound having the formula I ##STR1## Where L are, independently of one another, identical or different and are each a cyclopentadienyl group, by reactin one or two cyclopentadienyl compounds LH with formaldehyde in monomeric, oligomeric or polymeric form or formaldehyde-generating reagents in the presence of at least one base and at least one phase transfer catalyst.Type: GrantFiled: September 12, 1997Date of Patent: August 31, 1999Assignee: Targor GmbHInventors: Frank Kuber, Michael Riedel, Berthold Schiemenz
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Patent number: 5942586Abstract: Catalyst for the polymerization of olefins, process for its preparation, and its use.The present invention relates to a supported catalyst for the polymerization of olefins, which can be prepared by reacting the reaction product formed from an aluminoxane and at least one metallocene with a microporous, polymeric support.Type: GrantFiled: June 7, 1995Date of Patent: August 24, 1999Assignee: Targor GmbHInventors: Hans-Friedrich Herrmann, Bernd Bachmann, Bernhard Hierholzer, Walter Spaleck
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Patent number: 5932669Abstract: A very effective catalyst system for olefin polymerization comprises a cocatalyst, preferably an aluminoxane, and a metallocene of the formula I ##STR1## in which, preferably, M.sup.1 is Zr or Hf, R.sup.1 and R.sup.2 are halogen or alkyl, R.sup.3 is alkyl, R.sup.4 to R.sup.10 are alkyl or hydrogen and R.sup.11 is a (substituted) alkylene or heteroatom bridge.Type: GrantFiled: June 6, 1995Date of Patent: August 3, 1999Assignee: Targor GmbHInventors: Jurgen Rohrmann, Volker Dolle, Andreas Winter, Frank Kuber
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Patent number: 5929264Abstract: The invention relates to a process for the preparation of a compound of the formula IV or IVa ##STR1## in which R.sup.1 -R.sup.5 are preferably hydrogen or alkyl, which comprises reacting a compound I ##STR2## with a compound II ##STR3## in which X.sup.1 and X.sup.2 are preferably halogen, to give the corresponding indanones, which are converted into the compounds IV and IVa by reduction and dehydration. The compounds IV and IVa are important intermediate products for the preparation of chiral metallocene complexes which are suitable catalyst components for olefin polymerization.Type: GrantFiled: July 10, 1997Date of Patent: July 27, 1999Assignee: Targor GmbHInventors: Jurgen Rohrmann, Frank Kuber
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Patent number: 5914376Abstract: Catalyst for the polymerization of olefins, process for the preparation thereof, and the use thereof.The present invention relates to a heterogeneous catalyst for the polymerization of olefins, comprising the product of the reaction of an aluminoxane which is insoluble in aliphatic and aromatic hydrocarbons, with at least one metallocene.Type: GrantFiled: June 7, 1995Date of Patent: June 22, 1999Assignee: Targor GmbHInventors: Hans-Friedrich Herrmann, Bernd Bachmann, Volker Dolle, Walter Spaleck
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Patent number: 5892078Abstract: The present invention relates to a stereorigid metallocene compound which has as ligands at least two substituted or unsubstituted cyclopentadienyl groups which are connected to one another via a five-membered ring, where at least one cyclopentadienyl group is fuzed to the five-membered ring and the ligand system of the stereorigid metallocene compound is different from 4-?(.eta..sup.5 -3'-alkyl-cyclopentadienyl)-4,6,6-trimethyl-(.eta..sup.5 -2-alkyl-4,5-tetrahydropentalene)!. The metallocene compound of the invention is suitable as a catalyst component for olefin polymerization.Type: GrantFiled: October 14, 1997Date of Patent: April 6, 1999Assignee: Targor GmbHInventors: Markus res, Frank ber, Berthold Schiemenz
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Patent number: 5883275Abstract: The present invention relates to a process for the hydrogenation of metallocenes, which comprises treating at least one metallocene containing at least one double bond and/or at least one aromatic substituent in at least one nonhalogenated solvent with hydrogen in the presence of at least one hydrogenation catalyst.Type: GrantFiled: October 31, 1997Date of Patent: March 16, 1999Assignee: Targor GmbHInventors: Carsten Bingel, Erich Hubscher, Claus-Peter Niesert, Roland Zenk
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Patent number: 5880302Abstract: The invention relates to an organometalic compound of the formula I ##STR1## where M is a metal atom, L are, independently of one another, identical or different .pi. ligands or other electron donors, T is a tin-containing bridge, Y are identical or different and are each a C.sub.1 -C.sub.20 -hydrocarbon group, an amide group, an alkoxy group or a halogen atom and K=0 or 1.The organometallic compound is suitable as catalyst component for olefin polymerization.Type: GrantFiled: October 1, 1997Date of Patent: March 9, 1999Assignee: Targor GmbHInventors: Hans-Friedrich Herrmann, Frank Kuber, Wolfgang Anton Herrmann, Markus Morawietz
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Patent number: 5868984Abstract: Polyolefin molding composition consisting essentially of a polyolefin formed from an olefin having at least 3 carbon atoms of the formula R.sup.a --CH.dbd.CH--R.sup.b, where R.sup.a and R.sup.b are identical or different and each is hydrogen or C.sub.1 -C.sub.15 -alkyl, straight-chain or branched, or R.sup.a and R.sup.b together with the atoms joining them together form a ring system, and from 0 to 10% by weight of ethylene or of a second olefin have the abovementioned meaning as comonomer, characterized by a 230/2.16 MFI from 5 to 1000 g/10 min, a 230/5 MFI from 15 to 3000 g/10 min, a molecular weight (M.sub.w) from 75,000 to 350,000 g/mol, a polydispersity (M.sub.w /M.sub.n) from 1.8 to 3.5, a viscosity number from 70 to 300 cm.sup.3 /g, a melting point from 120.degree. to 165.degree. C., an isotactic block length from 25 to 150, and ether extractables less than 2% by weight, based on the total weight of the polymer.Type: GrantFiled: May 22, 1997Date of Patent: February 9, 1999Assignee: Targor GmbHInventors: Andreas Winter, Annette Vollmar, Friedrich Kloos, Bernd Bachmann
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Patent number: 5869584Abstract: A highly effective catalyst system for the polymerization of olefins comprises a cocatalyst, preferably an aluminoxane, and a metallocene of the formula I ##STR1## in which, preferably M.sup.1 is Zr or Hf, R.sup.1 and R.sup.2 are alkyl or halogen, R.sup.5 is hydrogen or alkyl, R.sup.3 and R.sup.4 are alkyl, where R.sup.3, R.sup.4 and R.sup.5 may be halogenated, --(CR.sup.7 R.sup.8).sub.m --R.sup.6 --(CR.sup.7 R.sup.8).sub.n -- is a single- or multi-membered chain in which R.sup.6 may also be a (substituted) heteroatom, and m+n is zero or 1.Type: GrantFiled: June 2, 1995Date of Patent: February 9, 1999Assignee: Targor GmbHInventors: Andreas Winter, Frank Kueber, Walter Spaleck, Herbert Riepl, Wolfgang Anton Herrmann, Volker Dolle, Juergen Rohrmann
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Patent number: 5852142Abstract: The invention relates to a process for the preparation of a compound of the formula IV or IVa ##STR1## in which R.sup.1 -R.sup.5 are preferably hydrogen or alkyl, which comprises reacting a compound I ##STR2## with a compound II ##STR3## in which X.sup.1 and X.sup.2 are preferably halogen, to give the corresponding indanones, which are converted into the compounds IV and IVa by reduction and dehydration. The compounds IV and IVa are important intermediate products for the preparation of chiral metallocene complexes which are suitable catalyst components for olefin polymerization.Type: GrantFiled: June 5, 1995Date of Patent: December 22, 1998Assignee: Targor GmbHInventors: Jurgen Rohrmann, Frank Kuber
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Patent number: 5840644Abstract: Metallocenes containing aryl-substituted indenyl derivatives as ligands, process for their preparation, and their use as catalysts.A very effective catalyst system for the polymerization or copolymerization of olefins comprises a cocatalyst, preferably an aluminoxane or a supported aluminoxane, and a metallocene of the formula I ##STR1## in which, in the preferred form, M.sup.1 is Zr or Hf, R.sup.1 and R.sup.2 are halogen or alkyl, R.sup.1 is alkyl, R.sup.4 to R.sup.12 are alkyl or hydrogen and R.sup.13 is a (substituted) alkylene or heteroatom bridge.The metallocenes, in particular the zirconocenes, produce polymers of very high molecular weight, in the case of prochiral monomers polymers of very high molecular weight, very high stereotacticity and very high melting point, at high catalyst activities in the industrially particularly interesting temperature range between 50 and 80.degree. C. In addition, reactor deposits are avoided by means of supported catalyst systems.Type: GrantFiled: December 28, 1995Date of Patent: November 24, 1998Assignee: Targor GmbHInventors: Frank Kuber, Bernd Bachmann, Walter Spaleck, Andreas Winter, Jurgen Rohrmann
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Patent number: 5840948Abstract: The invention relates to a process for the preparation of a compound of the formula IV or IVa ##STR1## in which R.sup.1 -R.sup.5 are preferably hydrogen or alkyl, which comprises reacting a compound I ##STR2## with a compound II ##STR3## in which X.sup.1 and X.sup.2 are preferably halogen, to give the corresponding indanones, which are converted into the compounds IV and IVa by reduction and dehydration. The compounds IV and IVa are important intermediate products for the preparation of chiral metallocene complexes which are suitable catalyst components for olefin polymerization.Type: GrantFiled: June 5, 1995Date of Patent: November 24, 1998Assignee: Targor GmbHInventors: Jurgen Rohrmann, Frank Kuber
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Patent number: RE36103Abstract: A syndiotactic polyolefin is obtained in a high yield by polymerization or copolymerization of an olefin of the formula R.sup.a --CH.dbd.CH--R.sup.b in the presence of a catalyst consisting of a metallocene of the formula I ##STR1## and an aluminoxane. This polyolefin has a very high syndiotactic index. At a low polymerization temperature, a polyolefin having a low average molecular weight and narrow molecular weight distribution is obtained, and at a high polymerization temperature a polymer having a high average molecular weight and a wide molecular weight distribution is obtained.Shaped articles produced from the polymers are distinguished by a high transparency, flexibility, tear strength and excellent surface gloss.Type: GrantFiled: July 21, 1994Date of Patent: February 16, 1999Assignee: Targor GmbHInventors: Andreas Winter, Jurgen Rohrmann, Martin Antberg, Volker Dolle, Walter Spaleck