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).

  • Patent number: 6255506
    Abstract: 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 in which, in the preferred form, M1 is Zr or Hf, R1 and R2 are halogen or alkyl, R3 is alkyl, R4 to R12 are alkyl or hydrogen and R13 is a (substituted) alkylene or heteroatom bridge. The metallocenes, in particular the zirconocenes, produce polymers of a very high molecular weight, in the case of prochiral monomers polymers of a very high molecular weight, very high stereoactivity and very high melting point, at high catalyst activities in the industrially particularly interesting temperature range between 50 and 80° C. In addition, reactor deposits are avoided by means of supported catalyst systems.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: July 3, 2001
    Assignee: Targor GmbH
    Inventors: Frank Küber, Bernd Bachmann, Walter Spaleck, Andreas Winter, Jürgen Rohrmann
  • Patent number: 6242544
    Abstract: 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 in which, in the preferred form, M1 is Zr or Hf, R1 and R2 are halogen or alkyl, R3 is alkyl, R4 to R12 are alkyl or hydrogen and R13 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 interesting temperature range between 50 and 80° C.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: June 5, 2001
    Assignee: Targor GmbH
    Inventors: Frank Küber, Bernd Bachmann, Walter Spaleck, Andreas Winter, Jürgen Rohrmann
  • Patent number: 6150481
    Abstract: 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: Grant
    Filed: August 26, 1997
    Date of Patent: November 21, 2000
    Assignee: Targor GmbH
    Inventors: Andreas Winter, Walter Spaleck, Bernd Bachmann
  • Patent number: 6057408
    Abstract: A copolymer having from 80 to 40% by weight of propylene units, based on the total polymer, and from 20 to 60% by weight of at least one comonomer, based on the total polymer. The comonomer units are prepared from ethylene or olefins having at least 4 carbon atoms and the formula R.sup.a --CH.dbd.CH--R.sup.b, where R.sup.a and R.sup.b are identical or different and are each a hydrogen atom or an alkyl radical having from 1 to 15 carbon atoms, or R.sup.a and R.sup.b, together with the carbon atoms connecting them, form a ring having 4 to 12 carbon atoms. The copolymer has a viscosity number of greater than 200 cm.sup.3 /g.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: May 2, 2000
    Assignee: Targor GmbH
    Inventors: Andreas Winter, Frank Kuber, Bernd Bachmann
  • Patent number: 6051727
    Abstract: 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: Grant
    Filed: December 31, 1997
    Date of Patent: April 18, 2000
    Assignee: Targor GmbH
    Inventors: Frank Kuber, Bernd Bachmann, Walter Spaleck, Andreas Winter, Jurgen Rohrmann
  • Patent number: 6028152
    Abstract: 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: Grant
    Filed: August 18, 1997
    Date of Patent: February 22, 2000
    Assignee: Targor GmbH
    Inventors: Andreas Winter, Martin Antberg, Bernd Bachmann, Volker Dolle, Frank Kuber, Jurgen Rohrmann, Walter Spaleck
  • Patent number: 6002032
    Abstract: The present invention relates to zwitterionic neutral transition metal compounds. The compounds are suitable as catalyst components for the polymerization of olefins.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 14, 1999
    Assignee: Targor GmbH
    Inventors: Gerhard Erker, Bodo Temme, Michael Aulbach, Bernd Bachmann, Frank Kuber
  • Patent number: 5990254
    Abstract: 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: Grant
    Filed: December 26, 1996
    Date of Patent: November 23, 1999
    Assignee: Targor GmbH
    Inventors: Thomas Weller, Michael Aulbach, Frank Kuber, Gerhard Erker, Christian Psiorz, Bernd Bachmann, Frank Osan
  • Patent number: 5942586
    Abstract: 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: Grant
    Filed: June 7, 1995
    Date of Patent: August 24, 1999
    Assignee: Targor GmbH
    Inventors: Hans-Friedrich Herrmann, Bernd Bachmann, Bernhard Hierholzer, Walter Spaleck
  • Patent number: 5914376
    Abstract: 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: Grant
    Filed: June 7, 1995
    Date of Patent: June 22, 1999
    Assignee: Targor GmbH
    Inventors: Hans-Friedrich Herrmann, Bernd Bachmann, Volker Dolle, Walter Spaleck
  • Patent number: 5868984
    Abstract: 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: Grant
    Filed: May 22, 1997
    Date of Patent: February 9, 1999
    Assignee: Targor GmbH
    Inventors: Andreas Winter, Annette Vollmar, Friedrich Kloos, Bernd Bachmann
  • Patent number: 5840947
    Abstract: 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: Grant
    Filed: May 16, 1996
    Date of Patent: November 24, 1998
    Assignee: Targor GmbH
    Inventors: Frank Kuber, Michael Riedel, Bernd Bachmann, Andreas Winter
  • Patent number: 5840644
    Abstract: 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: Grant
    Filed: December 28, 1995
    Date of Patent: November 24, 1998
    Assignee: Targor GmbH
    Inventors: Frank Kuber, Bernd Bachmann, Walter Spaleck, Andreas Winter, Jurgen Rohrmann
  • Patent number: 5795732
    Abstract: 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: Grant
    Filed: June 3, 1996
    Date of Patent: August 18, 1998
    Assignee: Degussa Aktiengesellschaft
    Inventors: Bernhard Schilling, Walter Pfefferle, Bernd Bachmann, Wolfgang Leuchtenberger, Wolf-Dieter Deckwer
  • Patent number: 5792819
    Abstract: The present invention relates to zwitterionic neutral transition metal compounds. The compounds are suitable as catalyst components for the polymerization of olefins.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 11, 1998
    Assignee: Targor GmbH
    Inventors: Gerhard Erker, Bodo Temme, Michael Aulbach, Bernd Bachmann, Frank Kuber
  • Patent number: 5786432
    Abstract: 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: Grant
    Filed: June 7, 1995
    Date of Patent: July 28, 1998
    Assignee: Targor GmbH
    Inventors: Frank Kuber, Bernd Bachmann, Walter Spaleck, Andreas Winter, Jurgen Rohrmann
  • Patent number: 5776851
    Abstract: 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: Grant
    Filed: June 7, 1995
    Date of Patent: July 7, 1998
    Assignee: Targor GmbH
    Inventors: Frank Kuber, Michael Aulbach, Bernd Bachmann, Walter Spaleck, Andreas Winter
  • Patent number: 5770753
    Abstract: 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: Grant
    Filed: June 7, 1995
    Date of Patent: June 23, 1998
    Assignee: Targor GmbH
    Inventors: Frank Kuber, Bernd Bachmann, Walter Spaleck, Andreas Winter, Jurgen Rohrmann
  • Patent number: 5741868
    Abstract: 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: Grant
    Filed: June 7, 1995
    Date of Patent: April 21, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Frank Kuber, Michael Aulbach, Bernd Bachmann, Robert Klein, Klaus Kuhlein, Walter Spaleck, Christian Kohlpaintner
  • Patent number: 5719095
    Abstract: 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: Grant
    Filed: February 10, 1994
    Date of Patent: February 17, 1998
    Assignee: Hoechst AG
    Inventors: Michael-Joachim Brekner, Bernd Bachmann, Frank Osan, Klaus Alberti, Andreas Winter