Patents by Inventor Karl-Heinz Buechner
Karl-Heinz Buechner 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: 8256308Abstract: A metering capillary and method for providing at least one defined volume of a target constituent of a sample is provided, the method comprising providing at least one metering capillary having at least two openings; at least partly filling the metering capillary with the sample; carrying out a constituent separation for the at least partial separation of at least two constituents of the sample inside the metering capillary; and dividing the metering capillary into at least two partial pieces, wherein at least one of the partial pieces contains the defined volume of the target constituent.Type: GrantFiled: August 10, 2011Date of Patent: September 4, 2012Assignee: Roche Diagnostics Operations, Inc.Inventor: Karl-Heinz Buechner
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Publication number: 20120000299Abstract: A metering capillary and method for providing at least one defined volume of a target constituent of a sample is provided, the method comprising providing at least one metering capillary having at least two openings; at least partly filling the metering capillary with the sample; carrying out a constituent separation for the at least partial separation of at least two constituents of the sample inside the metering capillary; and dividing the metering capillary into at least two partial pieces, wherein at least one of the partial pieces contains the defined volume of the target constituent.Type: ApplicationFiled: August 10, 2011Publication date: January 5, 2012Applicant: ROCHE DIAGNOSTICS OPERATIONS, INC.Inventor: Karl-Heinz Buechner
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Patent number: 8002119Abstract: 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: GrantFiled: January 30, 2007Date of Patent: August 23, 2011Assignee: BASF SEInventors: Karl-Heinz Buechner, Stephan Nied, Alexander Goethlich, Frank Klippel, Gunnar Schornick
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Patent number: 7960455Abstract: Use of copolymers comprising alkylene oxide units, which copolymers comprise incorporated randomly or blockwise by polymerization (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 the formula I where the variables have the following meaning: R1 hydrogen or methyl; R2 a chemical bond or unbranched or branched C1-C6-alkylene; R3 identical or different unbranched or branched C2-C4-alkylene radicals; R4 unbranched or branched C1-C6-alkyl; n 3 to 50, as additive to phosphate- and/or phosphonate-comprising aqueous systems in industrial technical plants.Type: GrantFiled: June 14, 2006Date of Patent: June 14, 2011Assignee: BASF AktiengesellschaftInventors: Stephan Nied, Karl-Heinz Buechner, Marcus Guzmann
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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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Patent number: 7472793Abstract: A storage device which is suitable for presorting and having ready medicaments, particularly solid medicaments, and which is adapted to the medically prescribed, individual intake rhythm of the corresponding patients in such a way that the right dose can be administered at prescribed times without any problem. The storage device is in the form of magazines in which several receptacles (B) are stacked in semi-inclined position in a receiving container (A).Type: GrantFiled: November 30, 2002Date of Patent: January 6, 2009Inventors: Karin Berghaeuser, Karl-Heinz Buechner, Bertram Fritzsch, Andreas Schuster, Tobias Schuster
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Patent number: 7459513Abstract: 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: GrantFiled: November 5, 2004Date of Patent: December 2, 2008Assignee: BASF AktiengesellschaftInventors: Marcus Guzmann, Karl-Heinz Buechner, Pia Baum, Gregor Brodt
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Patent number: 7405263Abstract: 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: GrantFiled: May 6, 2004Date of Patent: July 29, 2008Assignee: BASF AktiengesellschaftInventors: Pia Baum, Erich Lutz, Marcus Guzmann, Karl-Heinz Buechner, 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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Publication number: 20050023181Abstract: A storage device which is suitable for presorting and having ready medicaments, particularly solid medicaments, and which is adapted to the medically prescribed, individual intake rhythm of the corresponding patients in such a way that the right dose can be administered at prescribed times without any problem. The storage device is in the form of magazines in which several receptacles (B) are stacked in semi-inclined position in a receiving container (A).Type: ApplicationFiled: November 30, 2002Publication date: February 3, 2005Inventors: Karin Berghaeuser, Karl-Heinz Buechner, Fritzsch Bertram, Andreas Schuster, Tobias Schuster
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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: 6803396Abstract: Aqueous superplasticizer solutions for concrete compositions include a polymeric superplasticizer and an air-detraining effective amount of a block polyether containing ethylene oxide and propylene oxide units.Type: GrantFiled: August 16, 2001Date of Patent: October 12, 2004Assignee: BASF CorporationInventors: Sridhar Gopalkrishnan, Kenneth L. Zack, Karl-Heinz Buechner
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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: 20030073760Abstract: Aqueous superplasticizer solutions for concrete compositions include a polymeric superplasticizer and an air-detraining effective amount of a block polyether containing ethylene oxide and propylene oxide units.Type: ApplicationFiled: August 16, 2001Publication date: April 17, 2003Inventors: Sridhar Gopalkrishnan, Kenneth L. Zack, Karl-Heinz Buechner
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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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Patent number: 5747619Abstract: Water-soluble copolymerizates are disclosed containing carboxyl groups, and also containing the following components incorporated by polymerization: (a) 30 to 80 mol % monoethylenically unsaturated C.sub.3 -C.sub.8 carboxylic acids, anhydrides thereof and/or water-soluble salts thereof; (b) 10 to 50 mol % C.sub.2 -C.sub.8 olefines, styrene, alkyl styrene, C.sub.1 -C.sub.10 alkyl vinyl ethers and/or vinyl esters of saturated C.sub.1 -C.sub.10 monocarboxylic acids; and (c) 0.01 to 20 mol % vinyl ethers and/or allyl ethers of alkoxylated C.sub.1 -C.sub.30 alcohols. The copolymerizates in question have a K-value of at least 8 (determined after H. Fikentscher). Also disclosed are methods of producing the water-soluble copolymerizates by copolymerization of the monomers in the presence of radical-forming polymerization initiators, and the use of the polymerizates as scale inhibitors.Type: GrantFiled: February 20, 1996Date of Patent: May 5, 1998Assignee: BASF AktiengesellschaftInventors: Walter Denzinger, Heinrich Hartmann, Birgit Potthoff-Karl, Karl-Heinz Buechner, Marc Heider, Hans-Juergen Raubenheimer
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Patent number: 5747635Abstract: Modified polyaspartic acids useful as detergent and cleaner additives, as water treatment agents and as scale inhibitors in the evaporation of sugar juice are obtainable by polycondensation of(a) from 1 to 99.9 mol % of aspartic acid with(b) from 99 to 0.1 mol % of fatty acids, polybasic carboxylic acids, anhydrides of polybasic carboxylic acids, polybasic hydroxycarboxylic acids, monobasic polyhydroxycarboxylic acids, alcohols, amines, alkoxylated alcohols and amines, amino sugars, carbohydrates, sugarcarboxylic acids and/or non-proteinogenic aminocarboxylic acidsor by polymerizing monoethylenically unsaturated monomers in the presence of polyaspartic acids in the manner of a free-radically initiated graft polymerization.Type: GrantFiled: January 3, 1995Date of Patent: May 5, 1998Assignee: BASF AktiengesellschaftInventors: Matthias Kroner, Heinrich Hartmann, Dieter Boeckh, Angelika Funhoff, Richard Baur, Alexander Kud, Volker Schwendemann, Birgit Potthoff-Karl, Karl-Heinz Buechner
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Patent number: 5225088Abstract: Nonhydrolyzed copolymers of(a) from 99 to 1 mol % of N-vinylformamide and(b) from 1 to 99 mol % of one or more water-soluble dialkylaminoalkylacrylamides in the form of the salts or quaternized products or a dialkylammonium compoundare used as agents for the treatment of wastewaters and sludges.Type: GrantFiled: September 18, 1991Date of Patent: July 6, 1993Assignee: BASF AktiengesellschaftInventors: Dietmar Moench, Heinrich Hartmann, Karl-Heinz Buechner