Patents by Inventor Martin Bohnenpoll
Martin Bohnenpoll 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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Publication number: 20090030169Abstract: The present invention relates to a process for producing polymers comprising repeating units derived from at least one isoolefin monomer, at least one multiolefin monomer and optionally further copolymerizable monomers in the presence of at least one organic nitro compound and AlCl3/water wherein the process is conducted in the absence of compounds selected from the group consisting of vanadium compounds, zirconium halogenid, hafnium halogenides. Preferably the polymers have a multiolefin content of greater than 2.5 mol %, and a molecular weight Mw of greater than 240 kg/mol.Type: ApplicationFiled: July 9, 2007Publication date: January 29, 2009Inventors: R. Resendes, Rudolf Casper, Rotraud Casper, William E. App, Gerhard Langstein, Martin Bohnenpoll, Gabor Kaszas, Stephan Glander
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Publication number: 20090018289Abstract: The present invention relates to a continuous process for producing polymers at conversions ranging from 50% to 95% having a Mooney viscosity of at least 25 Mooney-units and a gel content of less than 15 wt. % containing repeating units derived from at least one isoolefin monomer, more than 4.1 mol % of repeating units derived from at least one multiolefin monomer and optionally further copolymerizable monomers in the presence of AlCl3 and a suitable proton source (e.g. water) or cationogen and at least one multiolefin cross-linking agent wherein the process is conducted in the absence of transition metal compounds and organic nitro compounds.Type: ApplicationFiled: September 23, 2008Publication date: January 15, 2009Applicant: LANXESS INC.Inventors: R. Resendes, Gabor Kaszas, Mark J. Drewitt, Stephan Glander, Gerhard Langstein, Martin Bohnenpoll
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Patent number: 7446151Abstract: The present invention relates to a continuous process for producing polymers at conversions ranging from 50% to 95% having a Mooney viscosity of at least 25 Mooney-units and a gel content of less than 15 wt. % containing repeating units derived from at least one isoolefin monomer, more than 4.1 mol % of repeating units derived from at least one multiolefin monomer and optionally further copolymerizable monomers in the presence of AlCl3 and a suitable proton source (e.g. water) or cationogen and at least one multiolefin cross-linking agent wherein the process is conducted in the absence of transition metal compounds and organic nitro compounds.Type: GrantFiled: August 31, 2007Date of Patent: November 4, 2008Assignee: Lanxess, Inc.Inventors: Rui Resendes, Gabor Kaszas, Mark J. Drewitt, Stephan Glander, Gerhard Langstein, Martin Bohnenpoll
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Publication number: 20070299229Abstract: The present invention relates to a continuous process for producing polymers at conversions ranging from 50% to 95% having a Mooney viscosity of at least 25 Mooney-units and a gel content of less than 15 wt. % containing repeating units derived from at least one isoolefm monomer, more than 4.1 mol% of repeating units derived from at least one multiolefm monomer and optionally further copolymerizable monomers in the presence of AlCl3 and a suitable proton source (e.g. water) or cationogen and at least one multiolefin cross-linking agent wherein the process is conducted in the absence of transition metal compounds and organic nitro compounds.Type: ApplicationFiled: August 31, 2007Publication date: December 27, 2007Inventors: R. Resendes, Gabor Kaszas, Mark Drewitt, Stephan Glander, Gerhard Langstein, Martin Bohnenpoll
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Patent number: 7291758Abstract: The present invention relates to a process for the production of highly reactive polyisobutenes with a content of terminal vinylidene groupings of greater than 80 mol % and an average molecular weight of 500 to 10,000 Dalton by cationic polymerization of isobutene or of isobutene and monomers copolymerizable with isobutene in the presence of solvent-stabilized transition metal complexes with weakly coordinated anions.Type: GrantFiled: April 4, 2006Date of Patent: November 6, 2007Assignee: Basf AktiengesellschaftInventors: Martin Bohnenpoll, Jürgen Ismeier, Oskar Nuyken, Mario Vierle, Dirk Kurt Schön, Fritz Kühn
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Patent number: 7282548Abstract: The present invention relates to a continuous process for producing polymers at conversions ranging from 50% to 95% having a Mooney viscosity of at least 25 Mooney-units and a gel content of less than 15 wt. % containing repeating units derived from at least one isoolefin monomer, more than 4.1 mol % of repeating units derived from at least one multiolefin monomer and optionally further copolymerizable monomers in the presence of AlCl3 and a suitable proton source (e.g. water) or cationogen and at least one multiolefin cross-linking agent wherein the process is conducted in the absence of transition metal compounds and organic nitro compounds.Type: GrantFiled: February 11, 2004Date of Patent: October 16, 2007Assignee: Lanxess Inc.Inventors: R. Resendes, Gabor Kaszas, Mark J. Drewitt, Stephan Glander, Gerhard Langstein, Martin Bohnenpoll
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Patent number: 7256244Abstract: The present invention relates to a process for producing polymers comprising repeating units derived from at least one isoolefin monomer, at least one multiolefin monomer and optionally further copolymerization monomers in the presence of at least one organic nitro compound and AlCl3/water wherein the process is conducted in the absence of compounds selected from the group consisting of vanadium compounds, zirconium halogenid, and hafnium hallogenides.Type: GrantFiled: December 3, 2003Date of Patent: August 14, 2007Assignee: Lanxess Inc.Inventors: R. Resendes, Rotraud Casper, legal representative, William E. App, Gerhard Langstein, Martin Bohnenpoll, Gabor Kaszas, Stephan Glander, Rudolf Casper, deceased
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Publication number: 20060173227Abstract: The present invention relates to a process for the production of highly reactive polyisobutenes with a content of terminal vinylidene groupings of greater than 80 mol % and an average molecular weight of 500 to 10,000 Dalton by cationic polymerization of isobutene or of isobutene and monomers copolymerizable with isobutene in the presence of solvent-stabilized transition metal complexes with weakly coordinated anions.Type: ApplicationFiled: April 4, 2006Publication date: August 3, 2006Inventors: Martin Bohnenpoll, Jurgen Ismeier, Oskar Nuyken, Mario Vierle, Dirk Schon, Fritz Kuhn
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Patent number: 6846885Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides or hafnium halides or mixtures thereof and organic nitro compounds, especially for the preparation of butyl rubbers, as well as isoolefin copolymers composed of isobutene, isoprene and, optionally, further monomers.Type: GrantFiled: March 21, 2003Date of Patent: January 25, 2005Assignee: Bayer AktiengesellschaftInventors: Gerhard Langstein, Martin Bohnenpoll
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Publication number: 20040220328Abstract: The present invention relates to a process for producing polymers comprising repeating units derived from at least one isoolefin monomer, at least one multiolefin monomer and optionally further copolymerizable monomers in the presence of at least one organic nitro compound and AlCl3/water wherein the process is conducted in the absence of compounds selected from the group consisting of vanadium compounds, zirconium halogenid, hafnium halogenides.Type: ApplicationFiled: December 3, 2003Publication date: November 4, 2004Inventors: R. Resendes, Rotraud Casper, Rudolf Casper, William E. App, Gerhard Langstein, Martin Bohnenpoll, Gabor Kaszas, Stephan Glander
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Publication number: 20040116627Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides and/or hafnium halides and organic acid halides, in particular for the preparation of butyl rubbers, as well as isoolefin copolymers constructed of isobutene, isoprene and optionally further monomers.Type: ApplicationFiled: November 17, 2003Publication date: June 17, 2004Inventors: Gerhard Langstein, Jurgen Ismeier, Martin Bohnenpoll, Hans Ludwig Krauss, Rui Resendes
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Patent number: 6677421Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides and/or hafnium halides and organic acid halides, in particular for the preparation of butyl rubbers, as well as isoolefin copolymers constructed of isobutene, isoprene and optionally further monomers.Type: GrantFiled: August 16, 2002Date of Patent: January 13, 2004Assignee: Bayer AktiengesellschaftInventors: Gerhard Langstein, Jürgen Ismeier, Martin Bohnenpoll, Hans Ludwig Krauss, Rui Resendes
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Publication number: 20030199647Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides or hafnium halides or mixtures thereof and organic nitro compounds, especially for the preparation of butyl rubbers, as well as isoolefin copolymers composed of isobutene, isoprene and, optionally, further monomers.Type: ApplicationFiled: March 21, 2003Publication date: October 23, 2003Inventors: Gerhard Langstein, Martin Bohnenpoll
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Publication number: 20030176606Abstract: The present invention relates to a process for the production of highly reactive polyisobutenes with a content of terminal vinylidene groupings of greater than 80 mol % and an average molecular weight of 500 to 10,000 Dalton by cationic polymerization of isobutene or of isobutene and monomers copolymerizable with isobutene in the presence of solvent-stabilized transition metal complexes with weakly coordinated anions.Type: ApplicationFiled: March 11, 2003Publication date: September 18, 2003Inventors: Martin Bohnenpoll, Jurgen Ismeier, Oskar Nuyken, Mario Vierle, Dirk Kurt Schon, Fritz Kuhn
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Patent number: 6562916Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides or hafnium halides or mixtures thereof and organic nitro compounds, especially for the preparation of butyl rubbers, as well as isoolefin copolymers composed of isobutene, isoprene and, optionally, further monomers.Type: GrantFiled: August 27, 2001Date of Patent: May 13, 2003Assignee: Bayer AktiengesellschaftInventors: Gerhard Langstein, Martin Bohnenpoll
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Halogenated, high molecular weight, gel-free isobutene copolymers with elevated double bond contents
Patent number: 6545100Abstract: The present invention relates to halogenated, low-gel, high molecular weight isoolefin multiolefin copolymers, in particular to halogenated, low-gel, high molecular weight butyl rubbers, and halogenated, low-gel, high molecular weight isoolefin multiolefin copolymers synthesized from isobutene, isoprene and optionally further monomers, with a multiolefin content of greater than 2.5 mol %, a molecular weight Mw of greater than 240 kg/mol and a gel content of less than 1.2 wt. % and a process for their preparation.Type: GrantFiled: December 10, 2001Date of Patent: April 8, 2003Assignee: Bayer AktiengesellschaftInventors: Gerhard Langstein, Martin Bohnenpoll, Anthony Sumner, Marc Verhelst -
Publication number: 20030040590Abstract: The present invention provides a novel process for the preparation of isoolefin copolymers in the presence of zirconium halides and/or hafnium halides and organic acid halides, in particular for the preparation of butyl rubbers, as well as isoolefin copolymers constructed of isobutene, isoprene and optionally further monomers.Type: ApplicationFiled: August 16, 2002Publication date: February 27, 2003Inventors: Gerhard Langstein, Jurgen Ismeier, Martin Bohnenpoll, Hans Ludwig Krauss, Rui Resendes
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Publication number: 20020132904Abstract: The present invention relates to a rubber composition for a tire tread particularly in a pneumatic tire characterized in that said rubber composition comprises a low-gel, high molecular weight isoolefin multiolefin copolymer, in particular a low-gel, high molecular weight butyl rubber, or a low-gel, high molecular weight isoolefin multiolefin copolymer synthesized from isobutene, isoprene and optionally further monomers, with a multiolefin content of greater than 2.5 mol %, a molecular weight Mw of greater than 240 kg/mol and a gel content of less than 1.2 wt. % and/or a halogenated, low-gel, high molecular weight isoolefin multiolefin copolymer, in particular a halogenated, low-gel, high molecular weight butyl rubber, or a halogenated, low-gel, high molecular weight isoolefin multiolefin copolymer synthesized from isobutene, isoprene and optionally further monomers, with a multiolefin content of greater than 2.5 mol %, a molecular weight Mw of greater than 240 kg/mol and a gel content of less than 1.2 wt.Type: ApplicationFiled: December 10, 2001Publication date: September 19, 2002Inventors: Gerhard Langstein, Martin Bohnenpoll, Anthony Sumner, Marc Verhelst
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Publication number: 20020115766Abstract: The present invention relates to a rubber composition for a tire for a tire tube, and more particularly, to a rubber composition for a tire tube of motor car tire. The rubber composition comprises a low-gel, high molecular weight isoolefin multiolefin copolymer, in particular a low-gel, high molecular weight butyl rubber, or a low-gel, high molecular weight isoolefin multiolefin copolymer synthesized from isobutene, isoprene and optionally further monomers, with a multiolefin content of greater than 2.5 mol %, a molecular weight Mw of greater than 240 kg/mol and a gel content of less than 1.2 wt. % and/or a halogenated, low-gel, high molecular weight isoolefin multiolefin copolymer, in particular a halogenated, low-gel, high molecular weight butyl rubber, or a halogenated, low-gel, high molecular weight isoolefin multiolefin copolymer synthesized from isobutene, isoprene and optionally further monomers, with a multiolefin content of greater than 2.Type: ApplicationFiled: December 10, 2001Publication date: August 22, 2002Inventors: Gerhard Langstein, Martin Bohnenpoll, Anthony Sumner, Marc Verhelst
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Publication number: 20020111414Abstract: The present invention relates to a rubber composition for a tire inner liner, and more particularly, to a rubber composition for an inner liner of a tubeless tire characterized in that said rubber composition comprises a low-gel, high molecular weight isoolefin multiolefin copolymer, in particular a low-gel, high molecular weight butyl rubber, or a low-gel, high molecular weight isoolefin multiolefin copolymer synthesized from isobutene, isoprene and optionally further monomers, with a multiolefin content of greater than 2.5 mol %, a molecular weight Mw of greater than 240 kg/mol and a gel content of less than 1.2 wt. % and/or a halogenated, low-gel, high molecular weight isoolefin multiolefin copolymer, in particular a halogenated, low-gel, high molecular weight butyl rubber, or a halogenated, low-gel, high molecular weight isoolefin multiolefin copolymer synthesized from isobutene, isoprene and optionally further monomers, with a multiolefin content of greater than 2.Type: ApplicationFiled: December 10, 2001Publication date: August 15, 2002Inventors: Gerhard Langstein, Martin Bohnenpoll, Anthony Sumner, Marc Verhelst