Patents by Inventor Bernd Bachmann
Bernd Bachmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6051727Abstract: 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 in 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.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 31, 1997Date of Patent: April 18, 2000Assignee: Targor GmbHInventors: Frank Kuber, Bernd Bachmann, Walter Spaleck, Andreas Winter, Jurgen Rohrmann
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Patent number: 6028152Abstract: Disclosed is a catalyst system and method of polymerizing olefins, wherein the catalyst comprises a bridged metallocene of the following structure: ##STR1## wherein M.sup.1 is a transition metal of groups 4-6, R.sup.1 -R.sup.9 is hydrogen or other groups with the proviso that substituents R.sup.3 and R.sup.6 are not hydrogen, and wherein the metallocene is present in the meso form or in a mixture including both the meso and racemic forms.Type: GrantFiled: August 18, 1997Date of Patent: February 22, 2000Assignee: Targor GmbHInventors: Andreas Winter, Martin Antberg, Bernd Bachmann, Volker Dolle, Frank Kuber, Jurgen Rohrmann, Walter Spaleck
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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: 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: 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: 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: 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: 5840947Abstract: The present invention relates to a metallocene compound of the formula IR.sup.5.sub.n Cp.sup.1 Cp.sup.2 M.sup.1 R.sup.1 R.sup.2 (I)where Cp.sup.1 and Cp.sup.2 are, independently of one another, identical or different and are each an unsubstituted or substituted cyclopentadienyl group, n=zero or 1, R.sup.5 is a bridge, M.sup.1 is a metal of group IVb, Vb or VIb of the Periodic Table of the Elements, R.sup.1 and R.sup.2 are identical or different and are each a hydrogen atom or a C.sub.1 -C.sub.40 -group, wherein at least one of the two groups Cp.sup.1 and Cp.sup.2 is a substituted cyclopentadienyl group which bears at least one cyclic C.sub.3 -C.sub.30 -group containing at least one heteroatom in the ring, or which bears a fused-on C.sub.2 -C.sub.30 ring system containing at least one heteroatom in the ring.The metallocene compound can be used as a catalyst component for olefin polymerization.Type: GrantFiled: May 16, 1996Date of Patent: November 24, 1998Assignee: Targor GmbHInventors: Frank Kuber, Michael Riedel, Bernd Bachmann, Andreas Winter
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Patent number: 5795732Abstract: The invention is relates to improved stirred-tank reactors which are suitable, due to special fittings, for converting the results of e.g. microbial or enzymatic processes obtained when they are used on a laboratory scale into an industrial scale. A shaft-driven disk agitator is provided, with at least one perforated disk being attached in the reactor above and/or below the disk agitator.Type: GrantFiled: June 3, 1996Date of Patent: August 18, 1998Assignee: Degussa AktiengesellschaftInventors: Bernhard Schilling, Walter Pfefferle, Bernd Bachmann, Wolfgang Leuchtenberger, Wolf-Dieter Deckwer
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Patent number: 5792819Abstract: 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: August 11, 1998Assignee: Targor GmbHInventors: Gerhard Erker, Bodo Temme, Michael Aulbach, Bernd Bachmann, Frank Kuber
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Patent number: 5786432Abstract: 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.3 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.degree. and 80.degree. C. In addition, reactor deposits are avoided by means of supported catalyst systems.Type: GrantFiled: June 7, 1995Date of Patent: July 28, 1998Assignee: Targor GmbHInventors: Frank Kuber, Bernd Bachmann, Walter Spaleck, Andreas Winter, Jurgen Rohrmann
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Patent number: 5776851Abstract: 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: June 7, 1995Date of Patent: July 7, 1998Assignee: Targor GmbHInventors: Frank Kuber, Michael Aulbach, Bernd Bachmann, Walter Spaleck, Andreas Winter
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Patent number: 5770753Abstract: 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.3 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.degree. and 80.degree. C. In addition, reactor deposits are avoided by means of supported catalyst systems.Type: GrantFiled: June 7, 1995Date of Patent: June 23, 1998Assignee: Targor GmbHInventors: Frank Kuber, Bernd Bachmann, Walter Spaleck, Andreas Winter, Jurgen Rohrmann
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Patent number: 5741868Abstract: 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: June 7, 1995Date of Patent: April 21, 1998Assignee: Hoechst AktiengesellschaftInventors: Andreas Winter, Frank Kuber, Michael Aulbach, Bernd Bachmann, Robert Klein, Klaus Kuhlein, Walter Spaleck, Christian Kohlpaintner
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Patent number: 5719095Abstract: The invention relates to a process for the preparation of a catalyst system supported on a support. The catalyst system is built up from at least one catalyst and at least one cocatalyst. The catalyst and the cocatalyst supported on a support material are brought into contact in a suspension solution. The fixing of the catalyst to the support is carried out under the action of microwaves.Type: GrantFiled: February 10, 1994Date of Patent: February 17, 1998Assignee: Hoechst AGInventors: Michael-Joachim Brekner, Bernd Bachmann, Frank Osan, Klaus Alberti, Andreas Winter
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Patent number: 5710297Abstract: 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: September 13, 1996Date of Patent: January 20, 1998Assignee: Hoechst AktiengesellschaftInventors: Thomas Weller, Michael Aulbach, Frank Kuber, Gerhard Erker, Christian Psiorz, Bernd Bachmann, Frank Osan
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Patent number: 5700886Abstract: 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: May 31, 1995Date of Patent: December 23, 1997Assignee: Hoechst AktiengesellschaftInventors: Andreas Winter, Walter Spaleck, Bernd Bachmann
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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