Patents Assigned to Basell Polypropylen GmbH
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Patent number: 7569651Abstract: A process for the polymerization of olefins, in particular a process for the copolymerization of propylene with further olefins, is carried out in the presence of highly active catalyst systems comprising specifically selected metallocenes, in particular ones which bear different substituents in position 2 and position 4 on an indenyl ligand. Novel polypropylene copolymers can be obtained by this process.Type: GrantFiled: May 18, 2005Date of Patent: August 4, 2009Assignee: Basell Polypropylen GmbHInventors: Jörg Schottek, Markus Oberhoff, Carsten Bingel, David Fischer, Horst Weiβ, Andreas Winter, Volker Fraaije, Ralph-Dieter Maier, Wolfgang Bidell, Nicola Paczkowski, Jürgen Suhm, Roland Kratzer
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Patent number: 6787618Abstract: A metallocene compound having the formula (I): where M1 is a metal of group IVb, Vb or VIb of the Periodic Table of Elements, two or more adjacent radicals R4 to R12 together with the atoms connecting them form one or more aromatic or aliphatic rings and if R5, R6, and R7 are hydrogen, R9 and R11 are identical or different and are a C1-C4 alkyl group, a C1-C6 alkeryl group, or a C6-C10 aryl group.Type: GrantFiled: March 27, 2000Date of Patent: September 7, 2004Assignee: Basell Polypropylen GmbHInventors: Andreas Winter, Frank Küber, Bernd Bachmann
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Patent number: 6593442Abstract: A semicrystalline propylene polymer composition with good suitability for producing biaxially oriented films and prepared by polymerizing propylene, ethylene and/or C4-C18-1-alkenes, where at least 50 mol % of the monomer units present arise from the polymerization of propylene. Also described is the use of the semicrystalline propylene polymer composition for producing films, fibers or moldings, the films, fibers and moldings made from these compositions, biaxially stretched films made from the semicrystalline propylene polymer compositions, and also a method for characterizing the semicrystalline propylene polymer compositions.Type: GrantFiled: December 18, 2000Date of Patent: July 15, 2003Assignee: Basell Polypropylen GmbHInventors: Wolfgang Bidell, Roland Hingmann, Franz Langhauser, Dieter Lilge, Volker Rauschenberger, Günther Schweier, Florian Stricker, Jürgen Suhm
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Patent number: 6583253Abstract: Propene terpolymers consist of from 80 to 99.5 mol % of structural units derived from propene, from 0.1 to 15 mol % of structural units derived from ethene or a C4-C6-1-olefin (I) and from 0.Type: GrantFiled: December 5, 2000Date of Patent: June 24, 2003Assignee: Basell Polypropylen GmbHInventors: David Fischer, Peter John Vaughan Jones, Franz Langhauser, Wolfgang Bidell, Roland Hingmann, Günther Schweier, Bernd Lothar Marczinke, Meinolf Kersting, Ulrich Moll
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Patent number: 6521722Abstract: In a process for the polymerization of C2-C8-alk-1-enes by means of a Ziegler-Natta catalyst system, in which polymerization is carried out from the gas phase in at least one reaction zone at from 40 to 120° C. and pressures of from 1 to 100 bar, the pressure and temperature in the reaction zone are set so that an operating point formed by these parameters in a pressure-temperature diagram is located at from 0.2 to 5.0 bar below the dew line of the respective reaction mixture above which condensation of the C2-C8-alk-1-enes occurs.Type: GrantFiled: March 14, 2000Date of Patent: February 18, 2003Assignee: Basell Polypropylen GmbHInventors: Wolfgang Bidell, Roland Hingmann, Franz Langhauser, Meinolf Kersting, Rainer Alexander Werner
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Patent number: 6492539Abstract: a process for the preparation of indanones of the formula II from, indanones of the formula I or of indanones of the formula IIa from indanones of the formula Ia comprises reacting an indanone of the formula I or Ia with a coupling component.Type: GrantFiled: September 1, 1999Date of Patent: December 10, 2002Assignee: Basell Polypropylen GmbHInventors: Carsten Bingel, Markus Goeres, Volker Fraaije, Andreas Winter
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Patent number: 6444606Abstract: The invention relates to a catalyst system obtained by mixing at least one metallocene, at least one co-catalyst and at least one support which is rendered inert. The invention further relates to a method for producing a free flowing supported catalyst system wherein a) a metallocene/co-catalyst mixture is produced in a solvent or suspension agent, b) the metallocene/co-catalyst mixture is applied to a porous preferably inorganic dehydrated support, c) the solvent is removed from the resulting mixture, d) the supported catalyst system is isolated. The present invention also relates to homopolymers and/or copolymers having the preferred formula Rm—CH═CH—Rn for the monomer, wherein Rm and Rn are the same or different and mean a hydrogen atom or a group containing carbon with 1 to 10 C atoms, and Rm and Rn can form one or several rings with the binding atoms, which can be obtained with a catalyst system.Type: GrantFiled: February 10, 1999Date of Patent: September 3, 2002Assignee: Basell Polypropylen GmbHInventors: Carsten Bingel, Markus Goeres, Volker Fraaije, Andreas Winter
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Patent number: 6391989Abstract: A catalyst system comprising a) at least one support, b) at least one metallocene and c) at least one compound of the formula (I) where M1 is an element of group IIa, IIIa, IVa or Va of the Periodic Table of the Elements, x is 0 or 1, y is 0 or 1, z is 0 or 1, A is a cation of group Ia, IIa, IIIa of the Periodic Table of the Elements, a carbenium, oxonium, phosphonium or sulfonium cation or a quaternary ammonium compound, Q1, Q2, Q3 are each a ligand system based on a biphenyl framework bound to M1 via the positions 2 and 12 and having the formula (II) where R1, R2, R3, R4, R5, R6, R7 and R8 are identical or different and are each a hydrogen atom, a halogen atom, a C1-C40 group, or an OSiR39 group, where R9 are identical or different and are each a hydrogen atom, a halogen atom, a C1-C40 group and two or more radicals R1 to R8 may be joined to one another so as to form a monocyclic or polycyclic ring system which may be substituted.Type: GrantFiled: August 16, 2000Date of Patent: May 21, 2002Assignee: Basell Polypropylen GmbHInventors: Hans Bohnen, Cornelia Fritze, Frank Kueber
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Patent number: 6384144Abstract: 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: GrantFiled: June 4, 2001Date of Patent: May 7, 2002Assignee: Basell Polypropylen GmbHInventor: Stefan Mecking
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Patent number: 6362298Abstract: The invention relates to a high-molecular-weight copolymer comprising ethylene and propylene units which has an ethylene content in the range from 1 to 10% by weight, a melt flow rate MFR (230/5) of <5 dg/min and a molecular-weight distribution MW/Mn in the range from 6 to 20. The invention also relates to a process for the preparation of the copolymer in the presence of a catalyst, an organoaluminum compound (B) and an organosilicon compound (C), in which the polymerization is carried out in two reaction steps, where the suspension medium in the first step is simultaneously the monomer, and a polypropylene having a viscosity of from 500 to 1400 ml/g which makes up a proportion of from 20 to 80% of the total polymer is prepared in the first reaction step.Type: GrantFiled: February 21, 1997Date of Patent: March 26, 2002Assignee: Basell Polypropylen GmbHInventors: Volker Dolle, Eduardo Chicote Carrion, Herbert Terwyen