Patents by Inventor Mathias Hahn
Mathias Hahn 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: 8299183Abstract: The invention relates to a process for preparing an aqueous polymer dispersion comprising reacting, in the presence of a polymeric cationic co-stabilizer (A), one or more monomers (m), and a polymer (B) of a monomer mixture comprising at least one monomer (x) having a primary, secondary or tertiary amine or amide group and at least one olefinic unsaturation, and, at least one cationic monomer (y) having at least one olefinic unsaturation. The invention also relates to a polymer dispersion, a process for preparing a polymeric stabilizer (C), a polymeric stabilizer (C) and a process for producing paper.Type: GrantFiled: December 22, 2005Date of Patent: October 30, 2012Assignees: Akzo Nobel N.V., Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.Inventors: Mathias Hahn, Werner Jaeger, André Laschewsky, Bernd Paulke, Christian Przybyla, Achim Sieger
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Publication number: 20120022203Abstract: The present invention relates to a process for preparing a polymer dispersion comprising polymerising one or more water soluble anionic monomers (m1) and one or more non-ionic vinyl monomers (m2) present in a reaction mixture further comprising a polymeric stabiliser (B) and a polymeric co-stabiliser (C). It further relates to a polymer dispersion, the use of the polymer dispersion and a process for producing paper.Type: ApplicationFiled: September 28, 2011Publication date: January 26, 2012Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V., AKZO NOBEL N.V.Inventors: Christian Przybyla, Oliver Struck, André Laschewsky, Bernd Paulke, Mathias Hahn
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Patent number: 8039550Abstract: The present invention relates to a process for preparing a polymer dispersion comprising polymerising one or more water soluble anionic monomers (m1) and one or more non-ionic vinyl monomers (m2) present in a reaction mixture further comprising a polymeric stabiliser (B) and a polymeric co-stabiliser (C). It further relates to a polymer dispersion, the use of the polymer dispersion and a process for producing paper.Type: GrantFiled: May 19, 2006Date of Patent: October 18, 2011Assignees: Akzo Nobel N.V., Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung E.V.Inventors: Christian Przybyla, Oliver Struck, André Laschewsky, Bernd Paulke, Mathias Hahn
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Patent number: 7408004Abstract: The present invention relates to a water-soluble polymer dispersion comprising: a dispersed polymer made up of at least one water-soluble monomer A and at least one water-soluble cationic monomer B, at least one stabiliser C, and at least one cationic polyelectrolyte as co-stabiliser D. It also relates to a method of producing a polymer dispersion and to a paper-making process.Type: GrantFiled: May 15, 2003Date of Patent: August 5, 2008Assignee: Akzo Nobel N.V.Inventors: Oliver Struck, Christian Przybyla, Werner Jaeger, Mathias Hahn, Dirk Ruppelt
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Patent number: 7220339Abstract: The present invention relates to a process for preparing an aqueous polymer dispersion comprising: preparing a dispersant co-polymer of a monomer mixture (M) by polymerising the monomer mixture (M) in a reaction medium which is substantially free from organic solvents and/or substantially free from monomers which are not soluble in water, the monomer mixture (M) comprises at least one cationic vinyl monomer (m3) and at least one monomer (m4) which is tetrahydrofurfuryl acrylate, tetrahydrofurfuryl methacrylate, or a monomer of the general formula (I): wherein R1 is hydrogen or methyl, R2 is hydrogen or C1-C2 alkyl, R3 is hydrogen, C1-C4 alkyl, phenyl, or benzyl, n=1 to 4, and x=1 to 50, and then, polymerising one or more water-soluble monomers (m) in an aqueous solution of a salt in the presence of the obtained dispersant polymer. The invention also relates to an aqueous polymer dispersion, use of the dispersion and a process for the production of paper.Type: GrantFiled: June 12, 2006Date of Patent: May 22, 2007Assignee: Akzo Nobel N.V.Inventors: Oliver Struck, Christian Przybyla, Achim Sieger, Mathias Hahn, Dirk Ruppelt, Werner Jaeger
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Publication number: 20060281858Abstract: The present invention relates to a process for preparing a polymer dispersion comprising polymerising one or more water soluble anionic monomers (m1) and one or more non-ionic vinyl monomers (m2) present in a reaction mixture further comprising a polymeric stabiliser (B) and a polymeric co-stabiliser (C). It further relates to a polymer dispersion, the use of the polymer dispersion and a process for producing paper.Type: ApplicationFiled: May 19, 2006Publication date: December 14, 2006Applicants: AKZO NOBEL N.V., Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.Inventors: Christian Przybyla, Oliver Struck, Andre Laschewsky, Bernd Paulke, Mathias Hahn
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Patent number: 7122618Abstract: The present invention relates to quaternized polyamidoamines which have at least one structural unit of the formula VII in which R1, R2, R4 are straight-chain or branched organic radicals optionally containing heteroatoms; R5 is hydrogen or alkyl, R7 is hydrogen or alkyl or two radicals R7 together form a radical having a meaning given for R4, b is an integer from 0 to 50, and c is an integer from 1 to 50. The invention also relates to the preparation of the quaternary polyamidoamines, to compositions which comprise these compounds, and to the use thereof for cosmetic and pharmaceutical purposes, and in the fields of crop protection and textile dyeing. The present invention also relates to the use of quaternized polyamidoamines of the ionene type as biostatic or biocide and thus also biocidal compositions based on quaternized polyamidoamines.Type: GrantFiled: August 12, 2002Date of Patent: October 17, 2006Assignee: Fraunhofer Gesellschaft zur Foerderung der Angewandteri Forschung E.V.Inventors: Helmut Witteler, Axel Sanner, John-Bryan Speakman, Christian Drohmann, Mathias Hahn, Werner Jaeger
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Publication number: 20060229401Abstract: The present invention relates to a process for preparing an aqueous polymer dispersion comprising: preparing a dispersant co-polymer of a monomer mixture (M) by polymerising the monomer mixture (M) in a reaction medium which is substantially free from organic solvents and/or substantially free from monomers which are not soluble in water, the monomer mixture (M) comprises at least one cationic vinyl monomer (m3) and at least one monomer (m4) which is tetrahydrofurfuryl acrylate, tetrahydrofurfuryl methacrylate, or a monomer of the general formula (I): wherein R1 is hydrogen or methyl, R2 is hydrogen or C1-C2 alkyl, R3 is hydrogen, C1-C4 alkyl, phenyl, or benzyl, n=1 to 4, and x=1 to 50, and then, polymerising one or more water-soluble monomers (m) in an aqueous solution of a salt in the presence of the obtained dispersant polymer. The invention also relates to an aqueous polymer dispersion, use of the dispersion and a process for the production of paper.Type: ApplicationFiled: June 12, 2006Publication date: October 12, 2006Applicant: Akzo Nobel N.V.Inventors: Oliver Struck, Christian Przybyla, Achim Sieger, Mathias Hahn, Dirk Ruppelt, Werner Jaeger
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Patent number: 7091273Abstract: The present invention relates to a process for preparing an aqueous polymer dispersion comprising: preparing a dispersant co-polymer of a monomer mixture (M) by polymerising the monomer mixture (M) in a reaction medium which is substantially free from organic solvents and/or substantially free from monomers which are not soluble in water, the monomer mixture (M) comprises at least one cationic vinyl monomer (m3) and at least one monomer (m4) which is tetrahydrofurfuryl acrylate, tetrahydrofurfuryl methacrylate, or a monomer of the general formula (I): wherein R1 is hydrogen or methyl, R2 is hydrogen or C1–C2 alkyl, R3 is hydrogen, C1–C4 alkyl, phenyl, or benzyl, n=1 to 4, and x=1 to 50, and then, polymerising one or more water-soluble monomers (m) in an aqueous solution of a salt in the presence of the obtained dispersant polymer. The invention also relates to an aqueous polymer dispersion, use of the dispersion and a process for the production of paper.Type: GrantFiled: May 7, 2003Date of Patent: August 15, 2006Assignee: Akzo Nobel N.V.Inventors: Oliver Struck, Christian Przybyla, Achim Sieger, Mathias Hahn, Dirk Ruppelt, Werner Jaeger
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Publication number: 20060142464Abstract: The invention relates to a process for preparing an aqueous polymer dispersion comprising reacting, in the presence of a polymeric cationic co-stabiliser (A), one or more monomers (m), and a polymer (B) of a monomer mixture comprising at least one monomer (x) having a primary, secondary or tertiary amine or amide group and at least one olefinic unsaturation, and, at least one catonic monomer (y) having at least one olefinic unsaturation. The invention also relates to a polymer dispersion, a process for preparing a polymeric stabiliser (C), a polymeric stabiliser (C) and a process for producing paper.Type: ApplicationFiled: December 22, 2005Publication date: June 29, 2006Applicants: AKZO NOBEL N.V., FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG e.V.Inventors: Mathias Hahn, Werner Jaeger, Andre Laschewsky, Bernd Paulke, Christian Przybyla, Achim Sieger
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Publication number: 20050182181Abstract: The present invention relates to a water-soluble polymer dispersion comprising:a dispersed polymer made up of at least one water-soluble monomer A and at least one water-soluble cationic monomer B, at least one stabiliser C, and at least one cationic polyelectrolyte as co-stabiliser D. It also relates to a method of producing a polymer dispersion and to a paper-making process.Type: ApplicationFiled: May 15, 2003Publication date: August 18, 2005Inventors: Oliver Struck, Christian Przybyla, Werner Jaeger, Mathias Hahn, Dirk Ruppelt
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Publication number: 20050182222Abstract: The invention pertains to water soluble branched block copolymers comprising quaternary ammonium compounds and poly(alkylene glycols), whereby the molecular building blocks, which contain the quaternary ammonium groups, form backbone chains that are linked together in a wide mesh manner by the poly(alkylene glycol) blocks.Type: ApplicationFiled: March 21, 2003Publication date: August 18, 2005Inventors: Werner Jaeger, Mathias Hahn, Antje Lieske, Heike Korth, Rainer Staeck, Angelo Scordialo
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Publication number: 20040234493Abstract: The present invention relates to quaternized polyamidoamines which have at least one structural unit of the formula VII 1Type: ApplicationFiled: June 30, 2004Publication date: November 25, 2004Inventors: Helmut Witteler, Axel Sanner, John-Bryan Speakman, Christian Drohmann, Mathias Hahn, Werner Jaeger
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Publication number: 20030212183Abstract: The present invention relates to a process for preparing an aqueous polymer dispersion comprising: preparing a dispersant co-polymer of a monomer mixture (M) by polymerising the monomer mixture (M) in a reaction medium which is substantially free from organic solvents and/or substantially free from monomers which are not soluble in water, the monomer mixture (M) comprises at least one cationic vinyl monomer (m3) and at least one monomer (m4) which is tetrahydrofurfuryl acrylate, tetrahydrofurfuryl methacrylate, or a monomer of the general formula (I): 1Type: ApplicationFiled: May 7, 2003Publication date: November 13, 2003Applicant: AKZO NOBEL N.V.Inventors: Oliver Struck, Christian Przybyla, Achim Sieger, Mathias Hahn, Dirk Ruppelt, Werner Jaeger
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Patent number: 6423801Abstract: The invention is concerned with water soluble high-molecular weight quaternary ammonium graft polymer, wherein ammonium salt side chains are grafted onto a polyamine backbone under free radical conditions, and wherein the initiator system comprises a free radical-producing oxidizing agent and the polyamine backbone polymer.Type: GrantFiled: February 8, 1999Date of Patent: July 23, 2002Assignee: Nalco Chemical CompanyInventors: Mathias Hahn, Werner Jaeger, Jeffrey R. Cramm
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Patent number: 6124396Abstract: This invention concerns comb-like branched, water-soluble cationic acrylamide copolymers, prepared from 1-40 mole % of a water-soluble cationic prepolymer backbone of formula I--[A--B--NR].sub.n -- Iwhere A is an unsaturated ammonium compound or acrylamide and B--NR-- is selected from the group consisting of olefinically unsaturated, functional amine-group-containing monomers, triethanolamine, and diethanolalkylamine, and the amount of B--NR is 1 mole % to 50 mole % and n represents a degree of polymerization which leads to molecular weights in the range from 1000 to 200,000 g/mole, and 60 to 99 mole % acrylamide by graft polymerization of the acrylamide onto the amine-group-containing cationic prepolymer backbone with a water-in-oil emulsion technique, and the comb-like branched acrylamide copolymers have a molecular weight of >1 million.Type: GrantFiled: March 23, 1998Date of Patent: September 26, 2000Assignee: Nalco Chemical CompanyInventors: Mathias Hahn, Werner Jaeger, Jeffrey R. Cramm, Wesley L. Whipple
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Patent number: 6075089Abstract: The present invention concerns a process for producing dispersions of watsoluble vinyl polymers and a stabilizer for carrying out this process. Such water-soluble, particularly cationic vinyl polymers, are employed on a large scale as process expediters for carrying out, for instance, separating processes in water treatment or waste-water purification, respectively, in the paper, coal and ore industries, in oil production or also in the food stuff industry, among others, for floculation, coagulation, retention or dewatering. According to the present invention, water-soluble vinyl polymers are homo- or copolymerized in the presence of a dispersion stabilizer of the invention. The stabilizer consists of a graft copolymer whose backbone is formed by polyethylene oxide and its grafted branches of cationic vinyl monomers. Among others, cationic, hydrophobically modified vinyl monomers can be advantageously employed.Type: GrantFiled: October 5, 1998Date of Patent: June 13, 2000Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.Inventors: Werner Jaeger, Arvid Zimmermann, Mathias Hahn, Volker Hildebrandt, Karl Heinz Reichert
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Patent number: D693904Type: GrantFiled: October 16, 2012Date of Patent: November 19, 2013Assignee: Kohler Co.Inventors: Mathias Hahn, Herbert V. Kohler, Jr.
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Patent number: D694366Type: GrantFiled: February 21, 2012Date of Patent: November 26, 2013Assignee: Kohler Co.Inventors: Mathias Hahn, Paolo Grazioli, Anael Tasserit
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Patent number: D698420Type: GrantFiled: August 6, 2013Date of Patent: January 28, 2014Assignee: Kohler Co.Inventors: Mathias Hahn, Paolo Grazioli, Anael Tasserit