Patents by Inventor Hubert Meixner
Hubert Meixner 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: 10113270Abstract: Process for the Manufacture of Paper and Paperboard The present invention relates to a process of making paper or paperboard in which a cellulosic thin stock is provided and subjected to one or more shear stages and then drained and a moving screen to form a sheet which is dried, wherein the process employs a retention system which is applied to the thin stock, said retention system comprising as components i) a blend of different cationic polymers and ii) a microparticulate material, in which the blend of cationic polymers comprises, a) a cationic polymer having a charge density of from 0.Type: GrantFiled: January 9, 2014Date of Patent: October 30, 2018Assignee: BASF SEInventors: Christopher Alan Gray, Antonius Moormann-Schmitz, Hubert Meixner, Luis Miguel Sanchez Cerro, Thomas Muehlenbernd, Christian Jehn-Rendu
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Publication number: 20170362776Abstract: A process for producing paper or board, which process comprises ad-mixing (I) an aqueous composition of pH ?6 and (II) at least one water-soluble polymeric anionic compound to a paper stock having a pH in the range from 6 to 8 and then dewatering the paper stock by sheet formation and drying, wherein the aqueous composition comprises (a) polymers having primary amino groups and/or amidine groups to a combined content for these groups of ?1.5 meq/g of polymer, and (b) 0.01 to 50 mol % of 1,4-cyclohexanedione (b) based on the combined amount of primary amino groups and/or amidine groups of the polymers, and also to the paper or board thus obtained.Type: ApplicationFiled: December 4, 2015Publication date: December 21, 2017Applicant: BASF SEInventors: Hans-Joachim HAEHNLE, Christoph HAMERS, Anton ESSER, Hubert MEIXNER, Matthew BUCHAN, Norbert SCHALL, Stefan SPANGE, Katja TROMMLER, Hendryk WUERFEL, Susan SEIFERT, Tina WALTHER
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Patent number: 9404223Abstract: The present invention relates to a process of making paper or paperboard in which a cellulosic thin stock is provided and subjected to one or more shear stages and then drained and a moving screen to form a sheet which is dried, wherein the process employs a retention system which is applied to the thin stock, said retention system comprising as components i) a blend of different cationic polymers and ii) a microparticulate material, in which the blend of cationic polymers comprises, a) a cationic polymer having a charge density of at least 3 mEq per gram and a molar mass of greater than 700,000 Da, b) a cationic polymer having a charge density of below 3 mEq per gram and an intrinsic viscosity of at least 3 dl/g, wherein one of the components of the retention system is dosed into the thin stock after the final shearing stage and the other is dosed into the thin stock before the final shearing stage.Type: GrantFiled: January 31, 2013Date of Patent: August 2, 2016Assignee: BASF SEInventors: Christopher Alan Gray, Antonius Moormann-Schmitz, Hubert Meixner, Luis Miguel Sanchez Cerro, Christian Jehn-Rendu, Thomas Muehlenbernd
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Publication number: 20150345081Abstract: Process for the Manufacture of Paper and Paperboard The present invention relates to a process of making paper or paperboard in which a cellulosic thin stock is provided and subjected to one or more shear stages and then drained and a moving screen to form a sheet which is dried, wherein the process employs a retention system which is applied to the thin stock, said retention system comprising as components i) a blend of different cationic polymers and ii) a microparticulate material, in which the blend of cationic polymers comprises, a) a cationic polymer having a charge density of from 0.Type: ApplicationFiled: January 9, 2014Publication date: December 3, 2015Applicant: BASF SEInventors: Christopher Alan GRAY, Antonius MOORMANN-SCHMITZ, Hubert MEIXNER, Luis Miguel SANCHEZ CERRO, Thomas MUEHLENBERND, Christian JEHN-RENDU
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Publication number: 20140367059Abstract: The present invention relates to a process of making paper or paperboard in which a cellulosic thin stock is provided and subjected to one or more shear stages and then drained and a moving screen to form a sheet which is dried, wherein the process employs a retention system which is applied to the thin stock, said retention system comprising as components i) a blend of different cationic polymers and ii) a microparticulate material, in which the blend of cationic polymers comprises, a) a cationic polymer having a charge density of at least 3 mEq per gram and a molar mass of greater than 700,000 Da, b) a cationic polymer having a charge density of below 3 mEq per gram and an intrinsic viscosity of at least 3 dl/g, wherein one of the components of the retention system is dosed into the thin stock after the final shearing stage and the other is dosed into the thin stock before the final shearing stage.Type: ApplicationFiled: January 31, 2013Publication date: December 18, 2014Applicant: BASF SEInventors: Christopher Alan Gray, Antonius Moormann-Schmitz, Hubert Meixner, Luis Miguel Sanchez Cerro, Christian Jehn-Rendu, Thomas Muehlenbernd
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Patent number: 7297733Abstract: Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides contain, based on 100 parts of water, (A) from 5 to 80 parts by weight of water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units and having particle sizes of from 50 nm to 2 ?m and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the water-soluble polymers (A) in aqueous solution, which dispersions are prepared by polymerizing (A) from 5 to 80 parts by weight of N-vinylformamide and/or N-vinylacetamide, if desired together with other monoethylenically unsaturated monomers which form water-soluble polymers therewith, and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the polymers, formed from the monomers (A), in aqueous solution, in 100 parts by weight of water, at from 30 to 95° C. in the presence of from 0.001 to 5.Type: GrantFiled: January 10, 2006Date of Patent: November 20, 2007Assignee: BASF AktiengesellschaftInventors: Anton Negele, Werner Gauweiler, Hubert Meixner, Norbert Mahr, Martin Ruebenacker
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Publication number: 20060116448Abstract: Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides contain, based on 100 parts of water, (A) from 5 to 80 parts by weight of water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units and having particle sizes of from 50 nm to 2 ?m and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the water-soluble polymers (A) in aqueous solution, which dispersions are prepared by polymerizing (A) from 5 to 80 parts by weight of N-vinylformamide and/or N-vinylacetamide, if desired together with other monoethylenically unsaturated monomers which form water-soluble polymers therewith, and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the polymers, formed from the monomers (A), in aqueous solution, in 100 parts by weight of water, at from 30 to 95° C. in the presence of from 0.001 to 5.Type: ApplicationFiled: January 10, 2006Publication date: June 1, 2006Applicant: BASF AktiengesellschaftInventors: Anton Negele, Werner Gauweiler, Hubert Meixner, Norbert Mahr, Martin Rubenacker
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Patent number: 7034068Abstract: Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides contain, based on 100 parts of water, (A) from 5 to 80 parts by weight of water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units and having particle sizes of from 50 nm to 2 ?m and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the water-soluble polymers (A) in aqueous solution, which dispersions are prepared by polymerizing (A) from 5 to 80 parts by weight of N-vinylformamide and/or N-vinylacetamide, if desired together with other monoethylenically unsaturated monomers which form water-soluble polymers therewith, and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the polymers, formed from the monomers (A), in aqueous solution, in 100 parts by weight of water, at from 30 to 95° C. in the presence of from 0.001 to 5.Type: GrantFiled: October 30, 1999Date of Patent: April 25, 2006Assignee: BASF AktiengesellschaftInventors: Anton Negele, Werner Gauweiler, Hubert Meixner, Norbert Mahr, Martin Rübenacker
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Patent number: 6777530Abstract: The invention relates to the use of crosslinked nitrogenous compounds which are soluble or dispersible in water and are obtainable by crosslinking of (a) compounds containing at least three NH groups with (b) at least bifunctional crosslinkers which react with NH groups, in detergents and cleaners, especially soil release agents. Compounds (a) are preferably selected from the group consisting of oligo- and polyamines, polyalkylenepolyamines, polyamidoamines, polyamidoamines grafted with (poly)ethyleneimine, and mixtures thereof.Type: GrantFiled: October 2, 2000Date of Patent: August 17, 2004Assignee: BASF AktiengesellschaftInventors: Hubert Meixner, Ulrich Steuerle, Jürgen Decker, Wolfgang Paulus, Dieter Boeckh, Jürgen Alfred Lux, Beate Ehle
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Patent number: 6716311Abstract: The invention relates to modified cationic polymers which can be obtained by reacting (a) water-soluble, polymeric compounds containing NH groups with (b) compounds which are at least bifunctional with regard to NH groups, which contain at least one alkyl radical or alkenyl radical having at least 8 C atoms, and which contain, as a functional group, a halohydrin, epoxide, carboxyl, chloroformate or isocyanate group or a halogen atom. The invention also relates to a method for producing the polymers by reacting the compounds of groups (a) and (b), and to the use of the modified cationic polymers during the production of paper as fixing agents for papermaking stock containing interfering substances.Type: GrantFiled: May 4, 2001Date of Patent: April 6, 2004Assignee: BASF AktiengesellschaftInventors: Jürgen Decker, Norbert Mahr, Anton Esser, Hubert Meixner, Rainer Dyllick-Brenzinger, Martin aus dem Kahmen, Martin Gercke
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Patent number: 6706190Abstract: A process for fractionating water-soluble or water-dispersible amino-containing synthetic polymers having a broad molar mass distribution by ultrafiltration, wherein the polymer solution or dispersion to be fractionated is fed continuously into an ultrafiltration circulation with at least one ultrafiltration unit, and retentate having a narrower molar mass distribution and permeate are discharged continuously, in such a way that the ultrafiltration circulation is essentially in a steady state, the polymers obtainable by this process and their use.Type: GrantFiled: November 13, 2001Date of Patent: March 16, 2004Assignee: BASF AktiengesellschaftInventors: Ulrich Steuerle, Hartwig Voss, Jürgen Bernbach, Jürgen Decker, Rainer Dyllick-Brenzinger, Klaus Lorenz, Hubert Meixner, Martin Rübenacker
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Patent number: 6616807Abstract: Paper, board and cardboard having high dry strength are produced by the addition of cationic, anionic and/or amphoteric starch as dry strength agents to the paper stock and drainage of the paper stock with sheet formation in the presence of cationic polymers as retention aids for starch, and cationic polymeric retention aids are used for increasing the retention of dry strength agents comprising cationic, anionic and/or amphoteric starch in the production of paper, board and cardboard.Type: GrantFiled: October 1, 1999Date of Patent: September 9, 2003Assignee: BASF AktiengesellschaftInventors: Rainer Dyllick-Brenzinger, Primoz Lorencak, Hubert Meixner, Peter Baumann, Ellen Krüger, Andreas Stange, Martin Rübenacker
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Patent number: 6576086Abstract: Paper, board and cardboard are produced by draining paper stock containing interfering substances in the presence of fixing agents by a process in which the fixing agents used are reaction products which are obtainable by reacting amino- and/or ammonium-containing polymers selected from the group consisting of the polymers containing vinylamine units polyalkylene polyamines polyamidoamines ethyleneimine-grafted polyamidoamines which may be crosslinked, polydiallyldimethylammonium chlorides polymers containing dialkylaminoalkylacrylamide units or dialkylaminoalkylmethacrylamide units and polyallylamines and dicyandiamide and formaldehyde condensates with reactive sizes for paper in a weight ratio of polymer to reactive size of from 15,000:1 to 1:1, and the reaction products thus obtainable are used as fixing agents for water-soluble and for water-insoluble interfering substances in the production of paper, board and cardboard from paper stocks containing interfering substances.Type: GrantFiled: November 2, 1999Date of Patent: June 10, 2003Assignee: BASF AktiengesellschaftInventors: Roland Ettl, Hubert Meixner, Anton Esser, Rainer Scholz, Norbert Mahr, Ulrich Steuerle, Matthias Höne, Klaus Lorenz
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Patent number: 6562926Abstract: The invention relates to a method for producing water-soluble homopolymers and copolymers, comprising oligoalkylene-imine side chains of the general formula (I), wherein [AI]m, m, Y and x have the definitions given in claim 1, by radical homopolymerisation or copolymerisation of monomers A of the general formula (II), wherein [AI]m, m, n, Y and R have the definitions given in claim 1, in an aqueous reaction medium. The invention also relates to the homopolymers and copolymers obtained by this method and to their use as auxiliary agents in paper production.Type: GrantFiled: May 13, 2002Date of Patent: May 13, 2003Assignee: BASF AktiengesellschaftInventors: Jürgen Decker, Stefan Frenzel, Martin Rübenacker, Hubert Meixner
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Patent number: 6331519Abstract: A method of boosting the detergency of a detergent, which entails admixing an amine with an average pKA of from 1 to 14 to the detergent, wherein the amine is a polymer containing repeating units corresponding to the formula: —[CH2—CH(NH2)]— produced by at least partial hydrolysis of oligo/polyvinylformamides and co-polymers of vinylformamide wherein 5 to 100% of the nitrogen atoms are present in primary or secondary amino groups.Type: GrantFiled: May 2, 2000Date of Patent: December 18, 2001Assignee: BASF AktiengesellschaftInventors: Jürgen Huff, Ulrich Steuerle, Hubert Meixner, Beate Ehle, Wolfgang Paulus, Jürgen Alfred Lux, Lukas Häussling
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Patent number: 6303002Abstract: Paper, board and cardboard are produced from paper stocks which contain tacky impurities by the addition of surfactants and cationic polymers having a charge density of at least 1.5 meq/g (measured at pH 7) and a molar mass Mw of the cationic polymers of at least 15,000 and drainage of the paper stocks with fixation of the tacky impurities in the paper produced.Type: GrantFiled: October 15, 1999Date of Patent: October 16, 2001Assignee: BASF AktiengesellschaftInventors: Friedrich Linhart, Jaroslav Melzer, Hubert Meixner
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Patent number: 6300305Abstract: The use of an amine with an average pKA of from 1 to 14 as detergency booster, preferably in textile detergents, especially in color detergents, and detergent formulations containing these amines.Type: GrantFiled: May 2, 2000Date of Patent: October 9, 2001Assignee: BASF AktiengesellschaftInventors: Juergen Huff, Ulrich Steuerle, Hubert Meixner, Beate Ehle, Wolfgang Paulus, Juergen Alfred Lux, Lukas Haeussling
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Patent number: 6248836Abstract: Amphiphilic graft copolymers are prepared by grafting a pre-formed graft base polymer comprising at least 5% by weight of units of formula (I) where R1 and R2 are independently H or C1 to C6 alkyl groups. The monomer grafted to the pre-formed graft base polymer is at least one of styrene or a C1 to C2 alkylstyrene, and optionally other monoethylenically unsaturated monomers. At least 5 mole % of the groups are cleaved from the grafted copolymer thus formed.Type: GrantFiled: June 10, 1999Date of Patent: June 19, 2001Assignee: BASF AktiengesellschaftInventors: Anton Negele, Martin Rübenacker, Jens Utecht, Hubert Meixner
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Patent number: 6180590Abstract: The use of an amine with an average pKA of from 1 to 14 as detergency booster, preferably in textile detergents, especially in color detergents, and detergent formulations containing these amines.Type: GrantFiled: October 28, 1998Date of Patent: January 30, 2001Assignee: BASF AktiengesellschaftInventors: J{umlaut over (u)}rgen Huff, Ulrich Steuerle, Hubert Meixner, Beate Ehle, Wolfgang Paulus, J{umlaut over (u)}rgen Alfred Lux, Lukas H{umlaut over (a)}ussling
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Patent number: 6132558Abstract: Paper and cardboard are produced by draining pulps, with sheet formation and drying of the sheets, by a process in which first(a) polyethyleneimines having a molar mass M.sub.w of more than 500,000 or polymers containing vinylamine units and having a molar mass of from 5000 to 3 million and then(b) cationic polyacrylamides or polymers containing vinylamine units, the molar masses M.sub.w of the polymers each being at least 4 million,are added to the pulps, and the pulp is then subjected to at least one shearing stage and is flocculated by adding bentonite, colloidal silica or clay.Type: GrantFiled: January 8, 1999Date of Patent: October 17, 2000Assignee: BASF AktiengesellschaftInventors: Rainer Dyllick-Brenzinger, Hubert Meixner, Friedrich Linhart, Dietmar Monch, Klaus-Dieter Gerber, Bernd Dirks, Peter Baumann