Patents by Inventor Karl-Heinz Buchner
Karl-Heinz Buchner 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: 8381911Abstract: Disclosed is a storage device for medicaments, comprising a rectangular bottom part with 7 compartments (1) that are separated by partitions (2) and each have an independent pivotable lid (3) such that each compartment (1) can be individually accessed. Seven compartments (1) have a same-sized rectangular horizontal section within the bottom part (4) of the weekly dispenser, while at least one longitudinal side (4.2) of the bottom part (4), more specifically the access side, has a convex wall (4.3), and the top edge (2.3) of all partitions (2) has a uniform curvature having a radius R in the longitudinal direction thereof. The 7 dimensionally stable and elastic lids (3) have an adapted curvature R? that matches said uniform curvature of the top edge (2.3) of the partitions (2). The closing parts (6) start detaching from one another when pressure is applied to the central or rear region of an arched elastic lid (3).Type: GrantFiled: August 13, 2008Date of Patent: February 26, 2013Inventors: Karl-Heinz Buchner, Bertram Fritzsch, Karin Berghauser, Andreas Schuster
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Publication number: 20110120905Abstract: Disclosed is a storage device for medicaments, comprising a rectangular bottom part with 7 compartments (1) that are separated by partitions (2) and each have an independent pivotable lid (3) such that each compartment (1) can be individually accessed. Seven compartments (1) have a same-sized rectangular horizontal section within the bottom part (4) of the weekly dispenser, while at least one longitudinal side (4.2) of the bottom part (4), more specifically the access side, has a convex wall (4.3), and the top edge (2.3) of all partitions (2) has a uniform curvature having a radius R in the longitudinal direction thereof. The 7 dimensionally stable and elastic lids (3) have an adapted curvature R? that matches said uniform curvature of the top edge (2.3) of the partitions (2). The closing parts (6) start detaching from one another when pressure is applied to the central or rear region of an arched elastic lid (3).Type: ApplicationFiled: August 13, 2008Publication date: May 26, 2011Inventors: Karl-Heinz Buchner, Bertram Fritzsch, Karin Berghauser, Andreas Schuster
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Publication number: 20090025896Abstract: A method for controlling the thickening of aqueous systems comprising silicates, which comprises adding to the aqueous system at least one copolymer of a mean molecular weight Mw of at least 3000 g/mol to at most 60 000 g/mol and the copolymer being made up essentially randomly from monoethylenically unsaturated monocarboxylic acids, monoethylenically unsaturated dicarboxylic acids and other ethylenically unsaturated comonomers, the polymerization for producing the copolymer being performed in the presence of from 0.01 to 100 mol % of at least one base, based on the total amount of all COOH groups of the monocarboxylic and dicarboxylic acids, the quantitative figures in % by weight being respectively based on the total amount of all monomers used.Type: ApplicationFiled: January 30, 2007Publication date: January 29, 2009Applicant: BASF SEInventors: Karl-Heinz Büchner, Stephan Nied, Alexander Gothlich, Frank Klippel, Gunnar Schornick
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Publication number: 20090020728Abstract: A method for controlling the thickening of aqueous systems comprising silicates, which comprises adding to the aqueous system at least one copolymer of a mean molecular weight Mw of greater than 60 000 g/mol and the copolymer being made up essentially randomly from monoethylenically unsaturated monocarboxylic acids, monoethylenically unsaturated dicarboxylic acids and optionally other ethylenically unsaturated comonomers, the quantitative figures being respectively based on the total amount of all monomers used.Type: ApplicationFiled: January 31, 2007Publication date: January 22, 2009Applicant: BASF SEInventors: Karl-Heinz Buchner, Stephan Nied, Frank Klippel, Alexander Gothlich, Gunnar Schornick
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Publication number: 20080197082Abstract: The present invention relates to aminocarboxylic esters with EO/PO/BuO block polymers, processes for preparing such compounds and the use of these compounds as emulsion breakers, in particular for crude oil emulsions.Type: ApplicationFiled: June 14, 2006Publication date: August 21, 2008Applicant: BASF AKTIENGESELLSCHAFTInventors: Marcus Guzmann, Peter Neumann, Karl-Heinz Buchner, Alfred Oftring
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Publication number: 20080153931Abstract: The invention relates to the use of nondendrimeric, highly functional, hyperbranched polymers as demulsifiers for breaking crude oil emulsions. The hyperbranched polymers are preferably hyperbranched polycarbonates, hyperbranched polyesters, hyperbranched polyethers, hyperbranched polyurethanes, hyperbranched polyureapolyurethanes, hyperbranched polyureas, hyperbranched polyamides, hyperbranched polyetheramines and hyperbranched polyesteramides which are functional groups selected from the group consisting of —OC(O)OR, —COOH, —COOR, —CONHR, —CONH2, —OH, —SH, —NH2, —NHR, —NR2, —SO3H, —SO3R, —NHCOOR, —NHCONH2 and —NHCONHR, where R is an optionally substituted alkyl or aryl radical.Type: ApplicationFiled: February 2, 2006Publication date: June 26, 2008Applicant: BASF AktiengesellschaftInventors: Bernd Bruchmann, Karl-Heinz Buchner, Marcus Guzmann, Gregor Brodt, Stefan Frenzel
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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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Patent number: 6872848Abstract: Alkylpolyalkylene glycol esters of monoethylenically unsaturated carboxylic acids are prepared by esterifying (a) monoethylenically unsaturated carboxylic acids with (b) polyalkylene glycols which are endcapped at one end, in the absence of a solvent and in the presence of polymerization inhibitors and esterification catalysts at not more than 160° C. by a process in which the esterification is first carried out under atmospheric pressure or at up to 50 bar, the water formed in the esterification is then distilled from the reaction mixture at from 10 to 500 mbar and the esterification is then continued under atmospheric pressure or at up to 50 bar.Type: GrantFiled: December 14, 2001Date of Patent: March 29, 2005Assignee: BASF AktiengesellschaftInventors: Matthias Kroner, Jürgen Pfister, Dieter Faul, Hans-Jürgen Raubenheimer, Karl-Heinz Büchner
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Patent number: 6855762Abstract: A process for the preparation of water-soluble polymers of esters of ethylenically unsaturated carboxylic acids and polyalkylene glycols by azeotropic esterification, in the presence of organic solvents which form an azeotrope with water, of ethylenically unsaturated carboxylic acids with polyalkylene oxides which are capped at one end by end groups, to a degree of at least 85 wt %, followed by free-radical polymerization of the resulting esters optionally together with other ethylenically unsaturated monomers, in aqueous medium, wherein the organic solvents are removed by azeotropic distillation from the reaction mixture during polymerization and the water that is removed by distillation is recycled or the quantity of water removed by distillation from the reaction mixture is replaced by a feed of fresh water.Type: GrantFiled: November 16, 2000Date of Patent: February 15, 2005Assignee: BASF AktiengesellschaftInventors: Matthias Kroner, Karl-Heinz Büchner, Johannes Perner, Hans-Jürgen Raubenheimer, Dieter Faul
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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: 6846882Abstract: Polymers containing acid groups are modified by reaction of (a) polymers which comprise at least 5% by weight of a copolymerized monoethylenically unsaturated monomer containing acid groups, have molar masses of from 200 to 100,000 and are obtainable by free-radical polymerization of monoethylenically unsaturated acids in aqueous solution in the presence or absence of other monoethylenically unsaturated monomers and in the presence of at least 4% by weight, based on the monomers used in the polymerization, of a water-soluble sulfur compound in which the sulfur is in the oxidation state +4, with (b) polyalkylene glycols which are end-capped at one end, alkylpolyalkylene glycol amines or mixtures thereof, or mixtures of at least one of the two compounds specified with up to 30% by weight, based on the mixtures, of ammonia, amines, alcohols, hydroxycarboxylic acids or aminocarboxylic acids at up to 250° C.Type: GrantFiled: March 27, 2001Date of Patent: January 25, 2005Assignee: BASF AktiengesellschaftInventors: Matthias Kroner, Johannes Perner, Karl-Heinz Büchner, Jochen Wild, Jürgen Pfister
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Patent number: 6756471Abstract: The invention relates to a process for the preparation of water-soluble polymers containing polyalkylene glycol ether side chains and having molecular weights of from 15,000 to 65,000 by solution polymerization of esters of ethylenically unsaturated carboxylic acids and polyalkylene glycols which are masked on the end groups at one end, if desired together with another monomer in at least one hydrocarbon at monomer concentrations of from 70 to 95% by weight in the presence of free-radical-forming polymerization initiators and, if desired, polymerization regulators at temperatures of up to 200° C., removal of the solvent used in the solution polymerization, and dissolution of the polymers in water to give from 50 to 80% strength by weight solutions, with polymers containing acid groups being neutralized if desired.Type: GrantFiled: May 13, 2002Date of Patent: June 29, 2004Assignee: BASF AktiegesellschaftInventors: Matthias Kroner, Karl-Heinz Büchner, Johannes Perner
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Publication number: 20040054218Abstract: Alkylpolyalkylene glycol esters of monoethylenically unsaturated carboxylic acids are prepared by esterifying (a) monoethylenically unsaturated carboxylic acids with (b) polyalkylene glycols which are endcapped at one end, in the absence of a solvent and in the presence of polymerization inhibitors and esterification catalysts at not more than 160° C. by a process in which the esterification is first carried out under atmospheric pressure or at up to 50 bar, the water formed in the esterification is then distilled from the reaction mixture at from 10 to 500 mbar and the esterification is then continued under atmospheric pressure or at up to 50 bar.Type: ApplicationFiled: June 20, 2003Publication date: March 18, 2004Inventors: Matthias Kroner, Jurgen Pfister, Dieter Faul, Hans-Jurgen Raubenheimer, Karl-Heinz Buchner
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Patent number: 6545067Abstract: Mixtures of at least one polycarboxylate-based plasticizer for cement-comprising mineral building materials, and butoxylated polyalkylenepolyamines or their salts as air detrainers, and the use of such mixtures as additives for mineral building materials comprising cement, are described.Type: GrantFiled: March 16, 2001Date of Patent: April 8, 2003Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Büchner, Michael Ehle, Johannes Perner, Knut Oppenländer, Markus Hartmann, Wolfgang Günther, Matthias Kroner
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Publication number: 20030050404Abstract: Polymers containing acid groups are modified by reaction ofType: ApplicationFiled: September 19, 2002Publication date: March 13, 2003Inventors: Matthias Kroner, Johannes Perner, Karl-Heinz Buchner, Jochen Wild, Jurgen Pfister
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Publication number: 20030013842Abstract: Water-soluble polymers of esters made from acrylic acid and methacrylic acid and alkylpolyalkylene glycols, obtainable by azeotropic esterification of a mixture of acrylic acid (A), methacrylic acid (B), and an alkylpolyalkylene glycol (C) with a molecular weight Mw of from 350 to 4000, where in the mixture the molar ratio of (A) to (C) is from 0.Type: ApplicationFiled: May 2, 2002Publication date: January 16, 2003Applicant: BASF AktiengesellschaftInventors: Matthias Kroner, Karl-Heinz Buchner, Gregory Brodt
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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: 4764473Abstract: A chamber for the treatment of cells in an electrical field, in which a space is provided to hold the suspension containing the cells and into which extend at least two electrodes. The cells are exposed to an electrical field developed between the electrodes. The chamber is also provided with an accessory vessel removably connected thereto for further treatment of the cells.Type: GrantFiled: November 4, 1986Date of Patent: August 16, 1988Assignee: Kerforshungsanlage JulichInventors: Christain Matschke, William M. Arnold, Karl-Heinz Buchner, Ulrich Zimmerman