Patents by Inventor Walter Kaminsky
Walter Kaminsky 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: 8202959Abstract: The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.Type: GrantFiled: April 27, 2011Date of Patent: June 19, 2012Assignee: Evonik Oxeno GmbHInventors: Michael Grass, Franz Nierlich, Walter Kaminsky, Stefanie Derlin, Klaus-Diether Wiese, Dagmara Ortmann
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Patent number: 8138293Abstract: The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.Type: GrantFiled: May 11, 2007Date of Patent: March 20, 2012Assignee: Evonik Oxeno GmbHInventors: Michael Grass, Franz Nierlich, Walter Kaminsky, Stefanie Derlin, Klaus-Diether Wiese, Dagmara Ortmann
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Publication number: 20110201767Abstract: The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.Type: ApplicationFiled: April 27, 2011Publication date: August 18, 2011Applicant: Evonik Oxeno GmbHInventors: Michael Graß, Franz Nierlich, Walter Kaminsky, Stefanie Derlin, Klaus-Diether Wiese, Dagmara Ortmann
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Publication number: 20090203858Abstract: The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and which contains ethene or propene as a further monomer, the proportion of the incorporated 3-methylbut-1-ene being 0.1 to 40 mol %, and to a process for preparing such copolymers, the polymerization being performed in the presence of a catalyst which comprises at least one cyclopentadienyl group.Type: ApplicationFiled: May 11, 2007Publication date: August 13, 2009Applicant: EVONIK OXENO GMBHInventors: Michael Grass, Franz Nierlich, Walter Kaminsky, Stefanie Derlin, Klaus-Diether Wiese, Dagmara Ortmann
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Patent number: 7351678Abstract: The invention relates to the use of nitrogenous aluminium organyl complexes of general formula (I) as co-catalysts in heterogeneous polymerisation reactions of propene. In said formula: R, R?, R1 and R1? independently of one another represent branched or unbranched C1-C7 alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl or alkynyl; R2 represents unsubstituted, monoalkylated or polyalkylated and/or monofluorinated or polyfluorinated aromatic hydrocarbons from group (II); R3 and R4 independently of one another represent CH2, CF2 oder C(R1)2; m stands for 0, 1 or 2; n stands for 0, 1 or 2; o stands for 0 or 1, all independently of one another.Type: GrantFiled: September 11, 2002Date of Patent: April 1, 2008Assignee: Merck Patent GmbHInventors: Kartin Köhler, Herbert Schumann, Birgit Corinna Wassermann, Wilfried Wassermann, Katharina Lange, Sebastian Dechert, Markus Hummert, Stefan Schutte, Walter Kaminsky, Andrea Eisenhardt, Björn Heuer, Andre Laban
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Patent number: 7238757Abstract: Disclosed are compounds of formula (I) which compounds are useful as cocatalysts in olefinic polymerisation reactions, e.g., as Ziegler-Natta catalysts.Type: GrantFiled: September 13, 2002Date of Patent: July 3, 2007Assignee: Merck Patent GesellschaftInventors: Katrin Koehler, Eike Poetsch, Jens Eichhorn, Herbert Schumann, Birgit Wassermann, Sebastiain Dechert, Markus Hummert, Stefan Schutte, Walter Kaminsky, Andrea Eisenhardt, Manfred Arnold
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Publication number: 20060199926Abstract: The present invention relates to novel oxygen-containing organoaluminium complexes of the general formula (I) in which R1, independently of one another, denote branched or unbranched C1-C7-alkyl, -cycloalkyl, -alkenyl, -cycloalkenyl, -aryl or -alkynyl; R2 denotes unsubstituted, mono- or polyalkylated and/or mono- or polyfluorinated aromatic hydrocarbons from the group R3, R4, independently of one another, denote CH2, CF2 or C(R1)2; independently of one another, m denotes 0, 1, 2 n denotes 0, 1, 2. These compounds can serve as cocatalysts in olefinic polymerisation reactions. In particular, they can be employed for the preparation of novel Ziegler-Natta catalysts having improved properties, in particular having higher activities compared with conventional Ziegler-Natta catalysts with AlEt3, as cocatalyst, or of novel coordination catalyst systems which have higher activities than conventional Ziegler-Natta catalysts, even at low temperatures, such as 60° C., and a pressure of 2 bar.Type: ApplicationFiled: September 13, 2002Publication date: September 7, 2006Applicant: Merck Patent GmbHInventors: Katrin Koehler, Eike Poetsch, Jens Eichhorn, Herbert Schumann, Birgit Wassermann, Sebastiain Dechert, Markus Hummert, Stefan Schutte, Walter Kaminsky, Andrea Eisenhardt, Manfred Arnold
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Publication number: 20060149006Abstract: The present invention relates to a process for the preparation of co- and terpolymers from olefins having improved properties. In particular, the invention relates to the preparation of ethylene-propene copolymers (EPR), ethylene-propylene-diene terpolymers (EPDM) and further copolymers of ethylene-propene, 1-olefins and dienes having elastomeric properties which are improved by their structural makeup. In particular, this is a process for the preparation of EPR and EPDM rubbers by polymerisation of ethylene and propene, optionally ethylidenenorborne as diene at temperatures between ?20 to 150° C.Type: ApplicationFiled: November 28, 2003Publication date: July 6, 2006Inventors: Katrin Koehler, Walter Kaminsky, Andrea Esisenhardt
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Publication number: 20040242408Abstract: The invention relates to the use of nitrogenous aluminium organyl complexes of general formula (I) as co-catalysts in heterogeneous polymerisation reactions of propene. In said formula: R, R′, R1 and R1′ independently of one another represent branched or unbranched C1-C7 alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl or alkynyl; R2 represents unsubstituted, monoalkylated or polyalkylated and/or monofluorinated or polyfluorinated aromatic hydrocarbons from group (II); R3 and R4 independently of one another represent CH2, CF2 oder C(R1)2; m stands for 0, 1 or 2; n stands for 0, 1 or 2; o stands for 0 or 1, all independently of one another. Said systems exhibit improved characteristics in terms of activity and stereoselectivity in comparison to conventional co-catalysts such as AlEt3 and can act simultaneously as co-catalysts and stereoselectivity promoters.Type: ApplicationFiled: April 8, 2004Publication date: December 2, 2004Inventors: Katrin Kohler, Herbert Schumann, Birgit Corinna Wassermann, Wilfried Wassermann, Katharina Lange, Sebastian Dechert, Markus Hummert, Stefan Schutte, Walter Kaminsky, Andrea Eisenhardt, Bjorn Heuer, Andre Laban
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Patent number: 6534606Abstract: Described are catalyst systems having aluminium alkyl complexes of the formula (I) described herein applied to magnesium chloride, SiO2 or SiO2 in combination with MgCl2 as support in the presence of titanium halides or vanadium halides and internal and, if desired, external donors act both as cocatalysts and as stereoselectivity promoters in heterogeneous polymerizations of &agr;-olefins. Also described are polymerization methods using these catalyst systems.Type: GrantFiled: March 8, 2001Date of Patent: March 18, 2003Assignee: Merck Patent Gesellschaft Mit Beschränkter HaftungInventors: Katrin Köhler, Eike Poetsch, Herbert Schumann, Sebastian Dechert, Walter Kaminsky, Andre Laban, Manfred Arnold, Jana Knorr, Birgit Corinna Wassermann
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Publication number: 20020173603Abstract: Described are catalyst systems having aluminium alkyl complexes of the formula (I) described herein applied to magnesium chloride, SiO2 or SiO2 in combination with MgCl2 as support in the presence of titanium halides or vanadium halides and internal and, if desired, external donors act both as cocatalysts and as stereoselectivity promoters in heterogeneous polymerizations of &agr;-olefins. Also described are polymerization methods using these catalyst systems.Type: ApplicationFiled: March 8, 2001Publication date: November 21, 2002Inventors: Katrin Kohler, Eike Poetsch, Herbert Schumann, Sebastian Dechert, Walter Kaminsky, Andre Laban
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Publication number: 20020143125Abstract: Catalyst systems having a high polymerization activity comprise at least one catalyst component of the formula (I):Type: ApplicationFiled: January 2, 2002Publication date: October 3, 2002Inventors: Walter Kaminsky, Stephan Lenk, Volker Scholz, Herbert Roesky, Axel Herzog
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Publication number: 20020123581Abstract: The present invention relates to a process for the preparation of rubber-like ethylene/&agr;-olefin copolymers and ethylene/&agr;-olefin/non-conjugate diene terpolymers using a metallocene as catalyst, which process is characterized in that the metallocene used is a compound of the general formula (I) 1Type: ApplicationFiled: July 13, 2001Publication date: September 5, 2002Inventors: Peter Schertl, Wolfgang Nentwig, Rudiger Engehausen, Walter Kaminsky, Ulrich Weingarten
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Patent number: 6410661Abstract: A stereorigid metallocene compound contains, as ligands, an aryl-substituted cyclopentadienyl radical, linked via a hydrogen bridge, and a substituted or unsubstituted fluorenyl radical. The novel metallocene compound is suitable as a catalyst component for olefin polymerization.Type: GrantFiled: November 2, 1999Date of Patent: June 25, 2002Assignee: Basell Polyolefine GmbHInventors: Walter Kaminsky, Frank Kueber, Berthold Schiemenz, Ralf Werner, Anne-Meike Schauwienold, Frank Freidanck
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Patent number: 6291615Abstract: The present invention is directed to a catalyst system, the use thereof in the polymerization of dienes in a solution, suspension and vapor phase, and the use of diene rubbers produced therewith, exhibiting a high cis content, an average vinyl content and a low gel content.Type: GrantFiled: August 10, 1999Date of Patent: September 18, 2001Assignee: Bayer AktiengesellschaftInventors: Michael Dauben, Rüdiger Engehausen, Heinz Hermann Greve, Wolfgang Nentwig, Walter Kaminsky, Christian Strübel, Volker Scholz
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Patent number: 5204429Abstract: Crystalline, isotactic homopolymers of cycloolefins or elastic copolymers made from cycloolefins and linear olefins are obtained, without ring opening of the cycloolefins, at industrially favorable polymerization temperatures by means of a catalyst which comprises a stereorigid, chiral metallocene compound of groups IVb to VIb of the Periodic Table of the Elements and an aluminoxane.Type: GrantFiled: August 4, 1988Date of Patent: April 20, 1993Assignee: Hoechst AktiengesellschaftInventors: Walter Kaminsky, Regina Spiehl
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Patent number: 4933403Abstract: Process for the preparation of optically active polyolefins by polymerizing olefins of the formula CH.sub.2 .dbd.CHR in which R.dbd.C.sub.1 C.sub.10 -alkyl in the presence of an optically active catalyst system composed of an optically active transition metal compound containing only enantiomer (R- or S-form) of a stereorigid, chiral transition metal compound and an aluminum-containing compound of the aluminoxane type.Type: GrantFiled: March 11, 1986Date of Patent: June 12, 1990Assignee: Hoechst AktiengesellschaftInventors: Walter Kaminsky, Stefan Niedoba
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Patent number: 4871426Abstract: A liquid fraction and a gas fraction produced during the reprocessing of waste material containing CH compounds by pyrolysis, have a mass ratio approximately equal to 1. Since the liquid fraction is more suitable for further processing than the gas fraction, there is an incentive to augment the liquid fraction at the expense of the gas fraction. In order to achieve this object, the pyrolysis gas is cooled until the benzene and the higher-boiling gaseous constituents of the pyrolysis gas pass into the liquid phase, so that a benzene-containing liquid fraction is produced. A gas mixture containing benzene and toluene is stripped out of the benzene-containing liquid fraction, passed together with the gas fraction at a temperature of 300.degree. to 450.degree. C. over a zeolitic catalyst and then separated by cooling into both a fraction which is liquid at atmospheric pressure and a residual gas fraction.Type: GrantFiled: December 23, 1988Date of Patent: October 3, 1989Assignee: Asea Brown Boveri AktiengesellschaftInventors: Hans Lechert, Volkert Woebs-Gosch, Song Qun, Walter Kaminsky, Hansjorg Sinn
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Patent number: 4849487Abstract: Stereoblock polymers of 1-olefins having a broad uni-, bi-, tri- or multimodal molecular weight distribution are obtained when a catalyst which comprises a chiral metallocene containing bridges and an alumoxane is used for the polymerization of the 1-olefins. The polymers are particularly highly suitable for the production of transparent films.Type: GrantFiled: November 25, 1987Date of Patent: July 18, 1989Assignee: Hoechst AktiengesellschaftInventors: Walter Kaminsky, Maria Buschermohle
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Patent number: 4841004Abstract: Stereoblock polymers of 1-olefins having long isotactic sequences are obtained at industrially favorable polymerization temperatures using a catalyst which comprises a metallocene compound having cyclopentadienyl radicals which are substituted by chiral groups, and an alumoxane.Type: GrantFiled: November 25, 1987Date of Patent: June 20, 1989Assignee: Hoechst AktiengesellschaftInventors: Walter Kaminsky, Maria Buschermohle