Patents by Inventor Gregor Brodt
Gregor Brodt 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: 20070093609Abstract: A description is given of (meth)acrylic acid copolymers containing methacrylic acid units, the polymer being functionalized with aminoalkylsulfonic acid. In addition, a description is given of a process for preparation thereof and use thereof for water treatment, scale inhibition in petroleum production and corrosion inhibition in aqueous systems.Type: ApplicationFiled: November 5, 2004Publication date: April 26, 2007Applicant: Basf AktiengesellschaftInventors: Marcus Guzmann, Karl-Heinz Buchner, Pia Baum, Gregor Brodt
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Publication number: 20070055022Abstract: A description is given of (meth)acrylic acid copolymers comprising methacrylic acid units and units based on isopropanol, the polymer being functionalized with aminoalkylsulfonic acid. In addition, a description is given of a process for the preparation thereof and the use thereof for watertreatment, scale inhibition in mineral oil extraction and corrosion inhibition in aqueous systems.Type: ApplicationFiled: May 6, 2004Publication date: March 8, 2007Applicant: BASF AktiengesellschaftInventors: Pia Baum, Erich Lutz, Marcus Guzmann, Karl-Heinz Buchner, Gregor Brodt
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Publication number: 20050245427Abstract: Use of copolymers containing alkylene oxide units which comprise (a) 50 to 93 mol % of acrylic acid and/or a water-soluble salt of acrylic acid, (b) 5 to 30 mol % of methacrylic acid and/or a water-soluble salt of methacrylic acid and (c) 2 to 20 mol % of at least one nonionic monomer of formula I in which the variables have the following meanings: R1 is hydrogen or methyl; R2 is a chemical bond or unbranched or branched C1-C6-alkylene; R3 are identical or different unbranched or branched C2-C4-alkylene radicals; R4 is unbranched or branched C1-C6-alkyl; n is 3 to 50, in random or block copolymerized form, as additive for detergents and cleaners.Type: ApplicationFiled: June 4, 2003Publication date: November 3, 2005Applicant: BASF AktiengesellschaftInventors: Pia Baum, Kathrin Michl, Franz Weingart, Stephan Nied, Gregor Brodt
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Publication number: 20050202994Abstract: Use of copolymers containing sulfonic acid groups which comprise (a) 30 to 95 mol % of at least one monoethylenically unsaturated carboxylic acid, one monoethylenically unsaturated carboxylic ester or one water-soluble salt of a monoethylenically unsaturated carboxylic acid, (b) 3 to 35 mol % of at least one monomer containing sulfonic acid groups of the formula I ?in which the variables have the following meanings: R is hydrogen or methyl; X is a chemical bond or —COO—R1—; R1 is unbranched or branched C1-C4-alkylene; M is hydrogen, alkali metal or ammonium, and (c) 2 to 35 mol % of at least one nonionic monomer of the formula II ?in which the variables have the following meanings: R2 is hydrogen or methyl; R3 is a chemical bond or unbranched or branched C1-C6-alkylene; R4 are identical or different unbranched or branched C2-C4-alkylene radicals; R5 is unbranched or branched C1-C6-alkyl, C5-C8-cycloalkyl or aryl; n is 3 to 50, in random or block copolymerized form, as additive for detergentsType: ApplicationFiled: June 4, 2003Publication date: September 15, 2005Applicant: BASF AktiengesellschaftInventors: Pia Baum, Kathrin Michl, Franz Weingart, Stephan Nied, Gregor Brodt
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Patent number: 6849703Abstract: Water-soluble polymers of esters made from acrylic acid and alkylpolyalkylene glycols, obtainable by azeotropic esterification of a mixture of acrylic acid and alkylpolyalkylene glycol in a molar ratio of from 2 to 3:1 in the presence of at least 85% by weight, based on the alkylpolyalkylene glycol, of an organic solvent which forms an azeotrope with water, followed by free-radical polymerization, in an aqueous medium, of the mixture obtained during the esterification, where the organic solvent is distilled off azeotropically from the reaction mixture during the polymerization, and the water removed by distillation is returned to the mixture or replaced by a feed of fresh water, and preparation and use of these polymers as an additive to cementitious systems.Type: GrantFiled: May 2, 2002Date of Patent: February 1, 2005Assignee: BASF AktiengesellschaftInventors: Matthias Kroner, Karl-Heinz Büchner, Gregor Brodt
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Patent number: 6811673Abstract: Matt surfaces are obtained when a metal is coated electrolytically with zinc from an electrolyte solution which contains zinc sulfate or an alkanesulfonate of zinc or mixtures thereof, and optionally further metal salts, sulfuric acid or an alkanesulfonic acid or a mixture thereof, and at least one additive selected from nitrogen-containing surface-active compounds, which may be ionic or nonionic, sulfur-containing anionic surface-active compounds, and surface-active compounds based on multifunctional alcohols having at least three hydroxyl groups.Type: GrantFiled: January 10, 2003Date of Patent: November 2, 2004Assignee: BASF AktiengesellschaftInventors: Gregor Brodt, Jens Haas, Werner Hesse, Hans-Ulrich Jäger
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Publication number: 20030141195Abstract: The invention relates to a process for the electrolytic coating of metals with zinc or a zinc alloy in which matt surfaces are obtained, by deposition of zinc from an electrolyte solution comprising a zinc salt selected from zinc sulfate or an alkanesulfonate of zinc or mixtures thereof, and, if desired, further metal salts, an acid selected from sulfuric acid or an alkanesulfonic acid or a mixture of the two acids, and at least one additive for improving the surface roughness and preventing dendritic edge growth, selected from nitrogen-containing surface-active compounds, which may be ionic or nonionic, sulfur-containing anionic surface-active compounds, and surface-active compounds based on multifunctional alcohols having at least three hydroxyl groups.Type: ApplicationFiled: January 10, 2003Publication date: July 31, 2003Inventors: Gregor Brodt, Jens Haas, Werner Hesse, Hans-Ulrich Jager
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Publication number: 20020188093Abstract: Water-soluble polymers of esters made from acrylic acid and alkylpolyalkylene glycols, obtainable by azeotropic esterification of a mixture of acrylic acid and alkylpolyalkylene glycol in a molar ratio of from 2 to 3:1 in the presence of at least 85% by weight, based on the alkylpolyalkylene glycol, of an organic solvent which forms an azeotrope with water, followed by free-radical polymerization, in an aqueous medium, of the mixture obtained during the esterification, where the organic solvent is distilled off azeotropically from the reaction mixture during the polymerization, and the water removed by distillation is returned to the mixture or replaced by a feed of fresh water, and preparation and use of these polymers as an additive to cementitious systems.Type: ApplicationFiled: May 2, 2002Publication date: December 12, 2002Applicant: BASF AktiengesellschaftInventors: Matthias Kroner, Karl-Heinz Buchner, Gregor Brodt
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Patent number: 6403800Abstract: Described is a process for preparing 1-(2-sulfoethyl)pyridinium betaine wherein pyridine is reacted with a sulfoethylating agent from the group consisting of carbyl sulfate, ethionic acid and its salt and vinylsulfonic acid and vinylsulfonate, the reaction taking place in aqueous solution or in pyridine.Type: GrantFiled: August 11, 2000Date of Patent: June 11, 2002Assignee: BASF AktiengesellschaftInventors: Elisabeth Kappes, Gregor Brodt, Rudi Kröner, Norbert Wagner, Sören Hildebrandt, Thomas Bogenstätter
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Patent number: 6146704Abstract: Aqueous polymer dispersions based on copolymers of C.sub.2 -C.sub.14 olefins and monomers which contain acidic functional groups or are able to form them by hydrolysis, which dispersions may also contain colorants and/or corrosion inhibitors dispersed or dissolved in the polymer phase, are used for protecting metallic surfaces against corrosion.Type: GrantFiled: March 5, 1999Date of Patent: November 14, 2000Assignee: BASF AktiengesellschaftInventors: Gregor Brodt, Arend Jouke Kingma, Ulrich Schroder
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Patent number: 5922469Abstract: Preparation of materials (I) having an average molecular weight from 4000 to 30,000, obtainable by reacting1) a polyurethane (II) comprisinga) 1 mol of a diol (III) having an average molecular weight of from 400 to 4000,b) from 0.3 to 9 mol of an aliphatic or cycloaliphatic diol (IV) of 2 to 18 carbon atoms,c) from 0.3 to 9 mol of an aromatic diol (V) of 8 to 30 carbon atoms,d) from 0.01 to 1 mol of a trihydric alcohol (VI) of 3 to 18 carbon atoms,e) from 0.001 to 1 mol of a polyhydric alcohol (VII) of 3 to 14 carbon atoms which contains a tertiary amino group andf) an amount of a diisocyanate (VIII) of 6 to 30 carbon atoms such that the molar ratio of the isocyanate groups to the total number of hydroxyl groups in (III) to (VII) is from 1.05:1 to 1.Type: GrantFiled: April 15, 1997Date of Patent: July 13, 1999Assignee: BASF AktiengesellschaftInventors: Thomas Wunsch, Gregor Brodt, Ria Kress, Norbert Schneider, Albert Kohl, August Lehner, Werner Balz
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Patent number: 5756637Abstract: A polymeric material I is obtainable by reacting1) a polymer II ofa) from 80 to almost 100 mol % of a C.sub.1 -C.sub.25 -alkyl ester of an .alpha.,.beta.-unsaturated carboxylic acid,b) from 0 to 20 mol % of one or more further monomers andc) an initiator and/or regulator by means of which the majority of the polymer chains of the polymer II are terminated at one of their ends by a hydroxyl group,2) with a polyfunctional nonaromatic isocyanate III to give a reaction product IV, the amount of isocyanate groups being from 1.2 to 3.Type: GrantFiled: May 6, 1996Date of Patent: May 26, 1998Assignee: Emtech Magnetics GmbHInventors: Gregor Brodt, Josef Schelble, August Lehner, Franz Weingart, Albert Kohl, Ria Kress, Norbert Schneider
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Patent number: 5574130Abstract: Polylactide of the general structure I(R.sup.1 --OCONH).sub.n --R.sup.2 (I)whereR.sup.1 is a polylactide residue with a molecular weight of from 500 to 500,000 or a degree of polymerization, based on lactic acid units, of about 5 to 5500 andR.sup.2 is the n-functional radical of a tri-, tetra- or polyisocyanate.Type: GrantFiled: June 6, 1995Date of Patent: November 12, 1996Assignee: BASF AktiengesellschaftInventors: Lukas Haeussling, Gregor Brodt
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Patent number: 5556918Abstract: Polymeric materials (I) are obtainable by reacting1. a polymer II comprisinga) from 80 to almost 100 mol % of a C.sub.1 -C.sub.25 -alkyl ester of an .alpha.,.beta.-unsaturated carboxylic acid,b) from 0 to 20 mol % of a further monomer,c) tetrahydrofuran hydroperoxide as polymerization initiator and, if required,d) a further polymerization initiator and/or regulator by means of which the majority of the polymer chains of the polymer II are terminated at one of their ends by a hydroxyl group,2. with a polyfunctional isocyanate III to give a reaction product IV, the amount of isocyanate groups being from 1.2 to 3.0 mol per mol of hydroxyl groups of II, and3. reacting IV with ammonia or with a compound V which has an amino function reactive toward isocyanates.The polymeric materials can be used as dispersing resins for pigment-containing coatings, in particular for the production of magnetic recording materials.Type: GrantFiled: January 10, 1995Date of Patent: September 17, 1996Assignee: BASF Magnetics GmbHInventors: Gregor Brodt, August Lehner, Alfred Lindner, Hermann Graf, Michael Bobrich, Ria Kress, Norbert Schneider, Albert Kohl, Werner Loch
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Patent number: 5552229Abstract: In magnetic recording media consisting of a nonmagnetic substrate and at least one magnetizable layer firmly applied thereon and based on magnetic material dispersed in a binder mixture which contains at least one hydroxyl-containing, preferably low molecular weight polyureaurethane and one polyurethaneurea (meth)acrylate, the polyurethaneurea (meth)acrylate is obtained by reacting a poly(meth)acrylate having up to 2 terminal OH groups per mol and a molecular weight of from 200 to 50,000 with a mixture of aliphatic polyisocyanates having an average functionality of from 3.0 to 6.0 NCO groups per mol, consisting offrom 0.1 to 10% by weight of a diisocyanate, from 30 to 80% by weight of a triisocyanate and from 20 to 60% by weight of an isocyanate having a functionality of from 4 to 10, with the proviso that from 1.2 to 3.Type: GrantFiled: September 29, 1994Date of Patent: September 3, 1996Assignee: BASF Magnetics GmbHInventors: Gregor Brodt, Attila Vass, Werner Loch, August Lehner, Werner Lenz, Norbert Schneider
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Patent number: 5543226Abstract: Magnetic recording media consist of a nonmagnetic substrate and at least one magnetizable layer bonded thereon and based on a magnetic material dispersed in at least one polyurethane and one polyurethaneurea (meth)acrylate, the polyurethaneurea (meth)acrylate being obtained by reacting a hydroxyl-containing poly(meth)acrylate with a mixture of di- and polyisocyanates and converting the remaining NCO groups with ammonia or primary or secondary amines into urea groups.Type: GrantFiled: December 18, 1992Date of Patent: August 6, 1996Assignee: BASF Magnetics GmbHInventors: Michael Bobrich, August Lehner, Hermann Roller, Rudolf Suettinger, Ria Kress, Norbert Schneider, Werner Lenz, Peter Engelhardt, Peter Rudolf, Gregor Brodt, Werner Balz, Albert Kohl
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Patent number: 5473042Abstract: A material suitable as crosslinking binder component for pigment-containing coatings and having an average molecular weight of from 25,000 to 150,000, obtainable by reacting a polyurethane comprising a diol having a molecular weight between 400 and 4,000, an aliphatic or cycloaliphatic diol of 2-18 carbon atoms, an aromatic diol of 8-36 carbon atoms, a trihydric or polyhydric alcohol of 3-18 carbon atoms, a polyhydric alcohol of 3-40 carbon atoms containing a tertiary amino group, and a diisocyanate of 3-34 carbon atoms with a compound containing one or more hydroxyl groups and one or more amino groups reactive toward isocyanate groups. The materials may be used as crosslinkable binder components for pigment-containing coatings, in particular for the production of magnetic recording materials.Type: GrantFiled: January 10, 1995Date of Patent: December 5, 1995Assignee: BASF Magnetics GmbHInventors: Gregor Brodt, Thomas Wunsch, August Lehner, Albert Kohl
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Patent number: 5424132Abstract: Magnetic recording media consist of a nonmagnetic substrate and at least one magnetizable layer which is firmly applied thereon is based on a magnetic material dispersed in at least one polyureaurethane and a polyurethaneurea (meth)acrylate, the polyurethaneurea (meth)acrylate being obtained by reacting a polyacrylate with a mixture of di- and polyisocyanates and converting the remaining NCO groups into substituted urea groups with aminoalkyltrialkoxysilanes.Type: GrantFiled: October 7, 1993Date of Patent: June 13, 1995Assignee: BASF Magnetics GmbHInventors: Michael Bobrich, Gregor Brodt, Ria Kress, Milena Melzer, Norbert Schneider
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Patent number: 5330784Abstract: Flexible magnetic recording media essentially consist of a web-like nonmagnetic substrate, a magnetic layer applied to one main side of the web-like substrate and a backing coating formed on the opposite main side of the substrate from a polymeric binder and nonmagnetizable fillers and supporting pigments.Type: GrantFiled: November 4, 1993Date of Patent: July 19, 1994Assignee: BASF Magnetics GmbHInventors: Michael Bobrich, Gregor Brodt, Hermann Roller
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Patent number: 5266407Abstract: In magnetic recording media consisting of a nonmagnetic substrate and one or more magnetizable layers bonded thereon and based on a polyurethane binder, the binder consists of not less than 50% by weight of an isocyanate-free, branched polyurethane which is soluble in tetrahydrofuran and has sulfonate groups along the polyurethane branches and OH-containing urea groups at the chain ends and a molecular weight of from 4,000 to 30,000.Type: GrantFiled: December 11, 1991Date of Patent: November 30, 1993Assignee: BASF Magnetics GmbHInventors: Uwe Keppeler, Michael Bobrich, Helmut Auweter, Rudolf Suettinger, Albert Kohl, Hermann Dikow, Werner Lenz, Gregor Brodt