Patents by Inventor Helmut Winterling
Helmut Winterling 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: 8268955Abstract: Polyamide containing a compound which bears at least one hydroxy group and has chemical bonding by way of an amide group to the end of the polymer chain, process for preparing this polyamide, and also fibers, films, and moldings, comprising at least one such polyamide.Type: GrantFiled: October 28, 2003Date of Patent: September 18, 2012Assignee: BASF SEInventors: Helmut Winterling, Jürgen Demeter, Kurt Krempel
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Patent number: 7666976Abstract: Polyamide, whose main chain contains a chemically bound amine selected from the group consisting of 2-methyl-1,5-diaminopentane and 1-amino-2-R-cyclopent-1-ene, where R is a functional group capable of combining with an amino group to form an amide group, and processes for preparing such a polyamide and fibers, films and moldings comprising such a polyamide.Type: GrantFiled: May 6, 2004Date of Patent: February 23, 2010Assignee: BASF AktiengesellschaftInventors: Helmut Winterling, Jürgen Demeter, Jürgen Deininger, Gad Kory, Oliver Sötje, Axel Wilms, Robert Weiβ, Kurt Krempel, Christoph Benisch
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Patent number: 7470765Abstract: A process for preparing a polyamide by reacting a mixture which comprises a monomer which has a nitrile group and has at least one other functional group capable of forming a carboxamide group, and comprises water, in the presence of titanium dioxide as catalyst, which comprises using titanium dioxide whose BET surface area, determined to the German standard DIN 66 131 volumetrically by the multipoint method, is in the range from 5 to 35 m2/g.Type: GrantFiled: April 8, 2003Date of Patent: December 30, 2008Assignee: BASF AktiengesellschaftInventors: Helmut Winterling, Christoph Benisch, Thilo Hahn
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Patent number: 7393913Abstract: Polyamide whose main chain contains a chemically bound N-alkyllactam, and processes for preparing such a polyamide and fibers, films and moldings comprising such a polyamide.Type: GrantFiled: May 6, 2004Date of Patent: July 1, 2008Assignee: BASF AktiengesellschaftInventors: Helmut Winterling, Jürgen Demeter, Jürgen Deininger, Gad Kory, Oliver Sötje, Ralf Neuhaus, Kurt Krempel, Christoph Benisch
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Patent number: 7285601Abstract: A polyamide which contains a monoolefinically unsaturated compound chemically bonded at the end of the polymer chain, a process for preparing this polyamide, a polyamide obtainable by crosslinking this polyamide, and also fibers, films, and moldings, comprising at least one such polyamide.Type: GrantFiled: April 14, 2003Date of Patent: October 23, 2007Assignee: BASF AktiengesellschaftInventors: Helmut Winterling, Jürgen Deininger, Kurt Krempel
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Publication number: 20070027295Abstract: Polyamide whose main chain contains a chemically bound N-alkyllactam, and processes for preparing such a polyamide and fibers, films and moldings comprising such a polyamide.Type: ApplicationFiled: May 6, 2004Publication date: February 1, 2007Applicant: BASF AKTIENGESELLSCHAFTInventors: Helmut Winterling, Jurgen Demeter, Jurgen Deininger, Gad Kory, Oliver Sotje, Ralf Neuhaus, Kurt Krempel, Christoph Benisch
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Publication number: 20060235191Abstract: Polyamides, oligomers thereof or mixtures thereof, if required with further reaction products, are prepared by reacting aminonitriles or dinitriles and diamines or a mixture containing aminonitrile, dinitrile and diamine, and, if required, further polyamide-forming monomers and/oligomers with water in a reactor (1) having a vertically oriented longitudinal axis, by a process in which, in the reactor (1), the reaction product is removed from the bottom and ammonia formed and any further low molecular weight compounds formed and water are taken off via the top (2), wherein the reactor (1) has at least two chambers (4) arranged one on top of the other in the longitudinal direction, the chambers (4) being separated from one another by liquid-tight trays (5), each chamber (4) being connected by a liquid overflow (6) to the chamber (4) directly underneath and a liquid product stream being taken off by the liquid overflow (6) of the lowermost chamber (4), the gas space (7) above the liquid level in each chambeType: ApplicationFiled: March 19, 2004Publication date: October 19, 2006Applicant: BASF AktiengesellschaftInventors: Jürgen Deininger, Jürgen Demeter, Gad Kory, Oliver Sötje, Helmut Winterling, Peter Zehner, Michael Heeger, Martin Gann, Axel Polt, Ulrich Treuling, Werner Weinle
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Publication number: 20060223974Abstract: Polyamide, whose main chain contains a chemically bound amine selected from the group consisting of 2-methyl-1,5-diaminopentane and 1-amino-2-R-cyclopent-1-ene, where R is a functional group capable of combining with an amino group to form an amide group, and processes for preparing such a polyamide and fibers, films and moldings comprising such a polyamide.Type: ApplicationFiled: May 6, 2004Publication date: October 5, 2006Applicant: BASF AktiengesellschaftInventors: Helmut Winterling, Jurgen Demeter, Jurgen Deininger, Gad Kory, Oliver Sotje, Axel Wilms, Robert Weib, Kurt Krempel, Christoph Benisch
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Publication number: 20060217522Abstract: An apparatus for making polyamides oligomers thereof mixtures thereof, the apparatus comprising a material selected from the group consisting of a) an austenitic steel comprising from 15 to 25% by weight of chromium, from 3 to 35% by weight of nickel and from 0 to 10% by weight of molybdenum, and iron, b) a duplex steel comprising from 20 to 30% by weight of chromium, from 3 to 10% by weight of nickel and from 0 to 5% by weight of molybdenum, and iron, and c) a nickel-based alloy comprising from 12 to 25% by weight of chromium and from 12 to 20% by weight of molybdenum, and nickelType: ApplicationFiled: July 15, 2004Publication date: September 28, 2006Applicant: BASF Aktiengesellscaft Patents, Trademarks and LicensesInventors: Jürgen Demeter, Oliver Sötje, Hans-Jürgen Bassler, Jürgen Deininger, Karl-Heinrich Klappert, Helmut Winterling
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Publication number: 20060063907Abstract: Polyamide containing a compound which bears at least one hydroxy group and has chemical bonding by way of an amide group to the end of the polymer chain, process for preparing this polyamide, and also fibers, films, and moldings, comprising at least one such polyamide.Type: ApplicationFiled: October 28, 2003Publication date: March 23, 2006Applicant: BASF AKTIENGESELLSCHAFTInventors: Helmut Winterling, Jurgen Demeter, Kurt Krempel
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Patent number: 6958381Abstract: A process for preparing polyamides comprises polymerizing starting monomers in the presence of from 2.3 to 10 mmol, based on 1 mol of carboxamide group of the polyamide, of a chain regulator containing a nitrile group and a functional group capable of forming a carboxamide group.Type: GrantFiled: November 22, 2001Date of Patent: October 25, 2005Assignee: BASF AktiengesellschaftInventors: Helmut Winterling, Michael Fischer
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Publication number: 20050159579Abstract: A polyamide which contains a monoolefinically unsaturated compound chemically bonded at the end of the polymer chain, a process for preparing this polyamide, a polyamide obtainable by crosslinking this polyamide, and also fibers, films, and moldings, comprising at least one such polyamide.Type: ApplicationFiled: April 14, 2003Publication date: July 21, 2005Inventors: Helmut Winterling, Jurgen Deininger, Kurt Krempel
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Publication number: 20050154182Abstract: A process for preparing a polyamide by reacting a mixture which comprises a monomer which has a nitrile group and has at least one other functional group capable of forming a carboxamide group, and comprises water, in the presence of titanium dioxide as catalyst, which comprises using titanium dioxide whose BET surface area, determined to the German standard DIN 66 131 volumetrically by the multipoint method, is in the range from 5 to 35 m2/g.Type: ApplicationFiled: April 8, 2003Publication date: July 14, 2005Inventors: Helmut Winterling, Christoph Benisch, Thilo Hahn
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Patent number: 6878798Abstract: A process for preparing a polymer, which comprises a) reacting a mixture (I) containing 6-aminocapronitrile and water in the presence of a catalyst to obtain a mixture (II) containing caprolactam, ammonia, water, high boilers and low boilers, then b) removing ammonia from mixture (II) to obtain a mixture (III) containing caprolactam, water, high boilers and low boilers, then c) removing all or some of the water from mixture (III) to obtain a mixture (IV) containing caprolactam, high boilers and low boilers and then d) feeding mixture (IV) to a polymerization reaction, and also the polymer obtainable by this process, the use of the polymer for producing fibers, sheetlike structures and moldings, and also fibers, sheetlike structures and moldings obtainable using such a polymer.Type: GrantFiled: April 30, 2001Date of Patent: April 12, 2005Assignee: BASF AktiengesellschaftInventors: Frank Ohlbach, Helmut Winterling, Andreas Ansmann, Rolf-Hartmuth Fischer, Johann-Peter Melder, Stefan Maixner, Peter Bassler, Hermann Luyken
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Patent number: 6815527Abstract: The continuous process for preparing a polyamide by reacting at least one aminonitrile with water comprises: (1) reacting at least one aminonitrile with water in the presence of an organic liquid diluent at from 90 to 400° C. and from 0.1 to 35×106 Pa in a flow tube containing a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide, to obtain a reaction mixture, (2) further reacting the reaction mixture at from 150 to 400° C.Type: GrantFiled: January 10, 2003Date of Patent: November 9, 2004Assignee: BASF AktiengesellschaftInventors: Peter Bassler, Helmut Winterling, Rolf-Hartmuth Fischer, Wolfgang Loth
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Publication number: 20040102604Abstract: The continuous process for preparing a polyamide by reacting at least one aminonitrile with water comprises:Type: ApplicationFiled: January 10, 2003Publication date: May 27, 2004Inventors: Peter Bassler, Helmut Winterling, Rolf-Hartmuth Fischer, Wolfgang Loth
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Publication number: 20040097692Abstract: A process is provided for the preparation of polyamides in an aqueous reaction mixture containing a nitrile selected from 6-aminocapronitrile and adipodinitrile, wherein a nitrile is used through which, in the liquid state, a gas inert to the nitrile has been passed.Type: ApplicationFiled: September 22, 2003Publication date: May 20, 2004Inventors: Helmut Winterling, Gerd Blinne, Gunter Vogel
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Patent number: 6703476Abstract: Polyamides are prepared from aminonitriles and water by (1) reacting the aminonitriles with water at from 180 to 350° C. and such a pressure in the range from 30 to 120 bar that a gaseous phase is present as well as a liquid phase, in a first reaction stage, (2) expanding the reaction mixture obtained in the first reaction stage via an evaporator zone or adiabatically with removal of water and ammonia into a second reaction stage, and (3) postcondensing in the second reaction stage at from 0.1 mbar to 5 bar and from 230 to 320° C.Type: GrantFiled: June 24, 2002Date of Patent: March 9, 2004Assignee: BASF AktiengesellschaftInventors: Ralf Mohrschladt, Helmut Winterling, Dieter Krauss
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Publication number: 20030135019Abstract: A process for preparing a polymer, which comprisesType: ApplicationFiled: October 17, 2002Publication date: July 17, 2003Inventors: Frank Ohlbach, Helmut Winterling, Andreas Ansmann, Rolf-Hartmuth Fischer, Johann-Peter Melder, Stefan Maixner, Peter Bassler, Hermann Luyken
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Publication number: 20030023027Abstract: Polyamides are prepared from aminonitriles and water byType: ApplicationFiled: June 24, 2002Publication date: January 30, 2003Inventors: Ralf Mohrschladt, Helmut Winterling, Dieter Krauss