Patents Assigned to Targor GmbH
  • Patent number: 7202190
    Abstract: A supported catalyst system for polymerizing olefins comprising a) a support, b) a Lewis base of the formula M3R6R7R8 ??(I) wherein M3 is an element of main group III of the Periodic Table of the Elements, c) an organometallic compound of the formula II as cocatalyst, M3R6R7R8 ??(II) wherein M3 is an element of main group III of the Periodic Table of the Elements, d) at least one metallocene, e) an organometallic compound of the formula [M4R9j]kIII where M4 is an element of main groups I, II or III of the Periodic Table of the Elements, where the organometallic compound of the formula II is covalently bound to the support.
    Type: Grant
    Filed: December 10, 1998
    Date of Patent: April 10, 2007
    Assignee: Targor GmbH
    Inventors: Hans Bohnen, Cornelia Fritze
  • Patent number: 6552210
    Abstract: Specifically substituted metallocenes can be used in the polymerization of olefins. The novel compounds contain a cationic group as substituents and are suitable as constituents of a catalyst system for the polymerization of olefins.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: April 22, 2003
    Assignee: Targor GmbH
    Inventors: Markus Göres, Hans Bohnen
  • Patent number: 6537943
    Abstract: The invention relates to a catalyst system composed of metallocenes comprising substituents containing fluorine, a method for producing said system and its use for the polymerization of olefins.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: March 25, 2003
    Assignee: Targor GmbH
    Inventors: Cornelia Fritze, Gerhard Erker, Johannes Ruwwe
  • Patent number: 6494982
    Abstract: A process for producing a composite material with an intermediate layer made from a thermoplastic polymer, an intermediate layer arranged thereupon, and a heat-cured layer applied to the intermediate layer, where the bonding material of the intermediate layer is a thermoplastic, the process comprising providing the materials for the intermediate layer, an optional decorative layer, and the heat-cured layer each in the form of a sheet, then bonding the sheets to the backing material at temperatures from 150 to 300° C. The intermediate layer and the backing may be composed of the same thermoplastic. The intermediate layer and the heat-cured layer may also be applied to both sides of the backing. The layered composite material may furthermore comprise a decorative layer between the intermediate layer and the heat-cured layer.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: December 17, 2002
    Assignee: Targor GmbH
    Inventors: Klaus Müller, Klaus Klemm
  • Patent number: 6486277
    Abstract: A boron-containing zwitterionic neutral transition metal compound which can advantageously be used for the polymerization of olefins is described. Here, the use of aluminoxanes, such as methylaluminoxane (MAO), as a cocatalyst can be dispensed with and a high catalyst activity and a good polymer morphology can nevertheless be achieved.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: November 26, 2002
    Assignee: Targor GmbH
    Inventors: Gerhard Erker, Gerald Kehr, Jörg Schottek, Roland Kratzer
  • Patent number: 6482902
    Abstract: The present invention relates to a catalyst system comprising metallocene, cocatalyst, support material and, if desired, further organometallic compounds. The catalyst system can advantageously be used for the polymerization of olefins, where the use of aluminoxanes such as methylaluminoxane (MAO), which usually has to be used in a large excess, as cocatalyst can be dispensed with and a high catalyst activity and good polymer morphology are nevertheless achieved.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: November 19, 2002
    Assignee: Targor GmbH
    Inventors: Hans Bohnen, Cornelia Fritze
  • Patent number: 6458982
    Abstract: Metallocene catalysts for the preparation of polyolefins, in particular polypropylene having elastomeric properties, having specific heteroaromatics in position 2 or 3 of the indenyl system. Particular preference is given to unbridged metallocene compounds of the formula II: where M, X and R3 to R8 are defined herein.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: October 1, 2002
    Assignee: Targor GmbH
    Inventors: Jörg Schottek, Roland Kratzer
  • Patent number: 6437187
    Abstract: Novel chemical compounds have an ionic structure and in combination with an organometallic transition metal compound form a catalyst system which is advantageously used for the polymerization of olefins.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: August 20, 2002
    Assignee: Targor GmbH
    Inventors: Hans Bohnen, Cornelia Fritze, Frank Kueber
  • Patent number: 6429250
    Abstract: A talc-reinforced polypropylene molding composition with high impact strength comprising a) from 35 to 90% by weight of a propylene polymer (A) with a melt flow rate of from 15 to 100 g/10 min at 230° C. and under a load of 2.16 kg in accordance with ISO 1133 and a content of from 0 to 25% by weight of other C2-C10 1-alkenes, b) from 5 to 40% by weight of an ethylene polymer (B) with from 20 to 30% by weight of copolymerized C4-C10 1-alkenes, a melt flow rate of from 0.2 to 30 g/10 min at 190° C. and under a load of 2.16 kg in accordance with ISO 1133, a density of from 0.850 to 0.880 g/cm3 and a Mooney viscosity (MS 1+4; 121° C.) of from 5 to 50 in accordance with DIN 53523/T1, and c) from 5 to 25% by weight of talc whose average particle size by the Sedigraph method is from 1.0 to 10 &mgr;m.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: August 6, 2002
    Assignee: Targor GmbH
    Inventor: Jürgen Rohrmann
  • Patent number: 6262196
    Abstract: A catalyst composition comprises at least two different polymerization catalysts of which a) at least one is a polymerization catalyst based on an early transition metal component and b) at least one is a polymerization catalyst based on a late transition metal component.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: July 17, 2001
    Assignee: Targor GmbH
    Inventor: Stefan Mecking
  • Patent number: 6262197
    Abstract: The present invention relates to a metallocene compound containing at least two metallocene fragments L—MX2—L which are different from one another and having the formula I where B is a bridging unit, m is an integer from 2 to 100,000, M is a metal atom of group IVb, Vb or VIb of the Periodic Table of the Elements, X are identical or different in one metallocene fragment L—MX2—L and are each, independently of one another, hydrogen, a C1-C40-hydrocarbon-containing group, an OH group, a halogen atom or a pseudohalogen, L are identical or different in one metallocene fragment and are each, independently of one another, a &pgr; ligand or another electron donor. The metallocene compound can advantageously be used as a catalyst component for olefin polymerization.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: July 17, 2001
    Assignee: Targor GmbH
    Inventors: Michael Aulbach, Michael-Joachim Brekner, Frank Küber, Roland Zenk
  • Patent number: 6255508
    Abstract: The present invention relates to a process for preparing a methylene-bridged biscyclopentadienyl compound having the formula I where L are, independently of one another, identical or different and are each a cyclopentadienyl group, by reacting 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: Grant
    Filed: June 23, 1999
    Date of Patent: July 3, 2001
    Assignee: Targor GmbH
    Inventors: Frank Küber, Michael Riedel, Berthold Schiemenz
  • 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: 6255531
    Abstract: The present invention relates to a chemical compound of the formula I where R are, independently of one another, identical or different and are each a halogen atom or a C1-C40-group, X are, independently of one another, identical or different and are each a C1-C40-group, M are, independently of one another, identical or different and are each an element of group IIIa, of the Periodic Table of the Elements, a is an integer from 0 to 10, b is an integer from 0 to 10, c is an integer from 0 to 10 and a=b•c, d is 0 or 1, e is 0 or 1, f is 0 or 1, g is an integer from 0 to 10, h is an integer from 0 to 10, k is an integer from 0 to 10, i is an integer from 0 to 1000, j is an integer from 1 to 6 and is a cation of group Ia, IIa, IIIa or the Periodic Table of the Elements, a carbenium, oxonium or sulfonium cation or a quaternary ammonium compound.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: July 3, 2001
    Assignee: Targor GmbH
    Inventors: Cornelia Fritz, Frank Küber, Hans Bohnen
  • 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: 6225425
    Abstract: Syndio-isoblock polymers of 1-olefins having molecular chains which contain syndiotactic and isotactic sequences are obtained if the polymerization of the 1-olefins is carried out using a catalyst which is composed of a bridge chiral metallocene of the formula I an an aluminoxane. The polymers have some rubber-like properties.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: May 1, 2001
    Assignee: Targor GmbH
    Inventors: Volker Dolle, Jürgen Rohrmann, Andreas Winter, Martin Antberg, Robert Klein
  • Patent number: 6218504
    Abstract: A gaseous mixture of steam and air, a gaseous mixture of steam and nitrogen, or pure steam are passed around polyolefin granules in a deodorizing apparatus. The result is that the polyolefin granules have markedly improved properties with respect to odor and taste, and these are retained in moldings produced from the granules.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: April 17, 2001
    Assignee: Targor GmbH
    Inventors: Volker Dolle, Eduardo Chicote Carrion, Paul-Richard Schöneborn, Herbert Terwyen
  • Patent number: 6218489
    Abstract: The present invention relates to a process to prepare an olefin using a transition metal compound of the formula I as a catalyst component where M1 is a metal of group IIIb, IVb or Vb of the Periodic Table of the Elements, R1, R2, R3 and R4 are identical or different and are each a hydrogen atom or a substituent, R5 are identical or different and are a substituent, Y are identical or different and are each a hydrogen atom, a C1-C40-hydrocarbon-containing group, an OH group, a halogen atom or an NR52 group, where R5 are identical or different and are each a halogen atom, a C1-C10-alkyl group or a C6-C10-aryl group, k is an integer which corresponds to the valence of the transition metal atom M1 minus two and if Y is a butadiene unit, k is 1, A is a bridge.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: April 17, 2001
    Assignee: Targor GmbH
    Inventors: Michael Riedel, Gerhard Erker, Lothar Duda
  • Patent number: RE37208
    Abstract: The novel metallocenes of the formula I in which, preferably, M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R3 and R4 are hydrogen, R5 and R6 are alkyl or haloalkyl, —(CR8R9)m—R7—(CR8R9)n— is a single- or multi-membered chain in which R7 may also be a (substituted) hetero atom, m+n is zero or 1, and R10 is hydrogen, form, together with aluminoxanes as cocatalysts, a very effective catalyst system for the preparation of polyolefins or high stereospecificity and high melting point. Polyolefins with unique or improved properties are obtained by polymerizing an olefin in the presence of a metallocene combined with a cocatalyst, wherein the metallocene is preferably a zirconocene or a hafnocene, and the Zr or Hf central atom is coordinated with two ligands which are derivatives of 2-substituted indenyl nuclei and which are substituted with at least one and up to four groups (e.g. aliphatic or aromatic groups) on the six-member rings of the indenyl nuclei.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: June 5, 2001
    Assignee: Targor GmbH
    Inventors: Andreas Winter, Martin Antberg, Walter Spaleck, Jürgen Rohrmann, Volker Dolle
  • Patent number: RE37384
    Abstract: The novel metallocenes of the formula I in which, preferably, M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R3 and R4 are hydrogen, R5 and R6 are alkyl or haloalkyl, —(CR8R9)m—R7—(CR8R9)n— is a single- or multi-membered chain in which R7 may also be a (substituted) hetero atom, and m+n is zero or 1, form, together with aluminoxanes as cocatalysts, a very effective catalyst system for the preparation of polyolefins of high molecular weight.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: September 18, 2001
    Assignee: Targor GmbH
    Inventors: Andreas Winter, Martin Antberg, Walter Spaleck, Jürgen Rohrmann, Volker Dolle