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: 5710297
    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: September 13, 1996
    Date of Patent: January 20, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Thomas Weller, Michael Aulbach, Frank Kuber, Gerhard Erker, Christian Psiorz, Bernd Bachmann, Frank Osan
  • Patent number: 5700886
    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: May 31, 1995
    Date of Patent: December 23, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Walter Spaleck, Bernd Bachmann
  • Patent number: 5696045
    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: June 24, 1996
    Date of Patent: December 9, 1997
    Inventors: Andreas Winter, Walter Spaleck, Bernd Bachmann
  • Patent number: 5693730
    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: December 2, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Frank Kuber, Michael Aulbach, Bernd Bachmann, Walter Spaleck, Andreas Winter
  • Patent number: 5693836
    Abstract: 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: Grant
    Filed: June 7, 1995
    Date of Patent: December 2, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Martin Antberg, Bernd Bachmann, Volker Dolle, Frank Kuber, Jurgen Rohrmann, Walter Spaleck
  • Patent number: 5672668
    Abstract: 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: Grant
    Filed: August 16, 1993
    Date of Patent: September 30, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Martin Antberg, Bernd Bachmann, Volker Dolle, Frank Kuber, Jurgen Rohrmann, Walter Spaleck
  • Patent number: 5668235
    Abstract: Polyolefin molding composition comprising 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, n, 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: June 6, 1995
    Date of Patent: September 16, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Annette Vollmar, Friedrich Kloos, Bernd Bachmann
  • Patent number: 5637666
    Abstract: Polyolefin molding composition comprising 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: February 10, 1995
    Date of Patent: June 10, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Annette Vollmar, Friedrich Kloos, Bernd Bachmann
  • Patent number: 5614455
    Abstract: Olefin polymerization catalyst, process for its preparation, and its useA supported polymerization catalyst which is applicable in all polymerization processes is comprised of the reaction product of (A) a supported organoaluminum compound and (B) a metallocene catalyst component.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 25, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hans-Friedrich Herrmann, Bernd Bachmann, Walter Spaleck
  • Patent number: 5612428
    Abstract: 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: Grant
    Filed: June 7, 1995
    Date of Patent: March 18, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Frank K uber, Michael Aulbach, Bernd Bachmann, Robert Klein, Klaus K uhlein, Walter Spaleck, Christian Kohlpaintner
  • Patent number: 5597881
    Abstract: A polyolefin molding composition essentially comprising a polyolefin derived from an olefin having at least 3 carbon atoms, 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 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 connecting them, form a ring, where the polyolefin molding composition may contain up to 10% by weight of ethylene or a second olefin as defined above as comonomer, having a molecular weight M.sub.w of >80,000 g/mol, a polydispersity M.sub.w /M.sub.n of from 1.8 to 3.5, a viscosity of >70 cm.sup.3 /g, a melting point of from 130.degree. to 160.degree. C., an aligned transparency of >30% and an ether-extractable content of less than 2% by weight.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: January 28, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Horst Bormuth, Bernd Bachmann
  • Patent number: 5585508
    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: November 23, 1994
    Date of Patent: December 17, 1996
    Assignee: Hoechst AG
    Inventors: Frank K uber, Michael Aulbach, Bernd Bachmann, Walter Spaleck, Andreas Winter
  • Patent number: 5578537
    Abstract: A supported polymerization catalyst which is applicable in all polymerization processes is comprised of the reaction product of (A) a supported organoaluminum compound and (B) a metallocene catalyst component.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: November 26, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hans-Friedrich Herrmann, Bernd Bachmann, Walter Spaleck
  • Patent number: 5576260
    Abstract: 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: Grant
    Filed: June 7, 1995
    Date of Patent: November 19, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Frank K uber, Michael Aulbach, Bernd Bachmann, Robert Klein, Klaus K uhlein, Walter Spaleck, Christian Kohlpaintner
  • Patent number: 5565534
    Abstract: The present invention relates to a process for the preparation of a polyolefin by polymerization of at least one olefin in the presence of a stereorigid metallocene compound containing, as ligands, at least two substituted or unsubstituted cyclopentadienyl groups bonded to one another via a monocyclic or polycyclic ring system, in which at least one cyclopentadienyl group is fused to the monocyclic or polycyclic ring system.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: October 15, 1996
    Assignee: Hoechst AG
    Inventors: Michael Aulbach, Bernd Bachmann, Gerhard Erker, Christian Psiorz, Frank Kuber, Frank Osan, Thomas Weller, Hans-Friedrich Herrmann
  • Patent number: 5543373
    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: December 21, 1994
    Date of Patent: August 6, 1996
    Assignee: Hoechst AG
    Inventors: Andreas Winter, Frank K uber, Michael Aulbach, Bernd Bachmann, Robert Klein, Klaus K uhlein, Walter Spaleck, Christian Kohlpaintner
  • Patent number: 5532396
    Abstract: 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: Grant
    Filed: December 22, 1994
    Date of Patent: July 2, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Frank Kuber, Michael Aulbach, Bernd Bachmann, Robert Klein, Klaus Kuhlein, Walter Spaleck, Christian Kohlpaintner
  • Patent number: 5416153
    Abstract: Polyolefin molding composition of high rigidity and hardnessA polyolefin molding composition essentially comprisinga) a polyolefin wax andb) a high-molecular-weight polyolefin or, instead of b),c) a high-molecular-weight olefin copolymer has high rigidity and hardness.In order to increase the impact strength, this molding composition may additionally be admixed with a rubber having a glass transition temperature of below -20.degree. C.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: May 16, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Winter, Bernd Bachmann
  • Patent number: 4577854
    Abstract: The solution according to the invention serves to position textile surface configurations, especially cut parts for pieces of clothing. It is the object of the invention to create an apparatus, with which sewing material parts can be positioned in two coordinates in a simple manner. In the invention, the sewing material is moved against a contact edge of a positioning table in the x-direction by air nozzles, which are alternately guided by sensors. The sewing material edge is clamped by a vertically-adjustable clamping device. The positioning table is then moved in the y-direction until the sewing material edge reaches a sensor.
    Type: Grant
    Filed: February 16, 1983
    Date of Patent: March 25, 1986
    Assignee: VEB Kombinat Textima
    Inventors: Bernd Bachmann, Peter Kuss, Frank Schuhmann, Jurgen Wollner