Patents by Inventor Christoph Hamers
Christoph Hamers 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: 11680371Abstract: A method for producing dried multilayer paper is provided comprising dewatering a first aqueous fibrous suspension, thereby creating a first fibrous web; dewatering a second aqueous fibrous suspension, thereby creating a second fibrous web; spraying one or more of a first fibrous web and a second fibrous web with a spray solution or spray suspension, thereby producing at least one sprayed fibrous web; assembling the first fibrous web with the second fibrous web; dehydrating the resulting layer compound by pressing; then dehydrating by supplying heat, which creates the dried multilayer paper. The spray solution or spray suspension contains water and at least one water-soluble polymer P. The polymer P is obtained by polymerizing: 40 to 85 mol % of a monomer of Formula I in which R1=H or C1-C6-Alkyl; and 15 to 60 mol % of one or more ethylenically unsaturated monomers.Type: GrantFiled: October 10, 2018Date of Patent: June 20, 2023Assignee: Solenis Technologies, L.P.Inventors: Christoph Hamers, Anton Esser, Frans De Bruyn, Christopher Alan Gray, Ralph Isermann
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Patent number: 11293143Abstract: A method to produce dried single-layer or multi-layer paper is disclosed. The method comprises, for a single-layer paper, preparing and spraying a partially dehydrated first fibrous web with a spray solution or suspension to give a sprayed partially dehydrated first fibrous web, and dehydrating the sprayed partially dehydrated first fibrous web by applying heat to form a dried single-layer paper; or, for a multi-layer paper, preparing and spraying a partially dehydrated layer compound with a spray solution or suspension to form a sprayed layer compound, and dehydrating the sprayed layer compound by applying heat to form a dried multi-layer paper. The spray solution or suspension comprises water and at least one water-soluble polymer P, which is obtained by polymerizing: (i) a monomer of formula H2CCHNHC(0)R1, where R1 is H or C1-C6- alkyl; and (ii) one or more ethylenically unsaturated monomers different from monomer (i).Type: GrantFiled: October 10, 2018Date of Patent: April 5, 2022Assignee: Solenis Technologies, L.P.Inventors: Christoph Hamers, Anton Esser, Frans De Bruyn, Christopher Alan Gray, Ralph Isermann
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Patent number: 11286621Abstract: Embodiments disclosed herein provide enzymatic formulations comprising a polypeptide having amylase activity for producing a paper product. Also provided are aqueous surface treatment compositions for paper and board comprising degraded starch. Further provided are methods for producing paper and board using the aqueous surface treatment composition, and to corrugated boards produced from this paper.Type: GrantFiled: August 12, 2016Date of Patent: March 29, 2022Assignee: BASF SEInventors: Christoph Hamers, Konstantino Karanikas, Kenneth Barrett, Zheng Tan
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Publication number: 20210395406Abstract: A vinyl amine containing polymer comprises randomly distributed repeating monomer units having at least two of the following formulae: wherein, R1 is a hydrogen atom or a methyl group; and wherein the vinyl amine containing polymer comprises repeating monomer unit III and/or IV in a total amount of from about 1.5 weight percent to about 8 weight percent based on a total weight of the polymer.Type: ApplicationFiled: June 23, 2021Publication date: December 23, 2021Inventors: Florian Taubert, Lysann Kaßner, Tina Uhlig, Andreas Seifert, Stefan Spange, Michael Sommer, Christoph Hamers, Hans-Joachim Haehnle
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Patent number: 11203838Abstract: A method for the production of paper or cardboard is provide comprising the following steps: (A) Adding a water soluble polymer P to a first aqueous pulp suspension, wherein polymer P is obtainable by Polymerizing to a polymer V of (i) 33 to 83 mol % of a monomer of formula I in which R1?H or C1-C6 alkyl, (ii) 6 to 56 mol % of diallyl dimethyl ammonium chloride, diallyl diethyl ammonium chloride or a salt form of a monoethylenically unsaturated monomer, (iii) 11 to 61 mol % of a monoethylenically unsaturated carboxylic acid, sulfonic acid or phosphonic acid, or salt forms thereof, (iv) 0 to 50 mol % of one or more ethylenically unsaturated monomers, and hydrolyzing the N—C(?O)R1 groups to form primary amino or amidine groups, (B) dehydrating the second aqueous pulp suspension to a wet paper structure, (C) dehydrating the wet paper structure.Type: GrantFiled: October 1, 2018Date of Patent: December 21, 2021Inventors: Christoph Hamers, Hans-Joachim Haehnle, Kai Pahnke, Anton Esser
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Publication number: 20210222371Abstract: A method for producing dried multilayer paper is provided comprising (A) Dewatering a first aqueous fibrous suspension, thereby creating a first fibrous web, (B) Dewatering a second aqueous fibrous suspension, thereby creating a second fibrous web, (C) Spraying one or more of a first fibrous web and a second fibrous web with a spray solution or spray suspension, thereby producing at least one sprayed fibrous web, (D) Assembling the first fibrous web with the second fibrous web, (E) Dehydrating the resulting layer compound by pressing, then (F) Dehydrating by supplying heat, which creates the dried multilayer paper, wherein the spray solution or spray suspension contains (c-a) Water (c-b) at least one water-soluble polymer P obtained by polymerizing 40 to 85 mol % of a monomer of Formula I in which R1=H or C1-C6-Alkyl, 15 to 60 mol % of one or more ethylenically unsaturated monomers.Type: ApplicationFiled: October 10, 2018Publication date: July 22, 2021Applicant: SOLENIS TECHNOLOGIES CAYMAN, L.P.Inventors: Christoph HAMERS, Anton ESSER, Frans DE BRUYN, Christopher Alan GRAY, Ralph ISERMANN
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Publication number: 20210189658Abstract: The invention relates to a method for producing dried single-layer or multi-layer paper containing the steps for a single-layer paper (A) Dewatering a first aqueous fibrous suspension, thereby creating a first fibrous web having a dry content between 14% wt. and 25% wt., (D-1) Dehydrating the first fibrous web by pressing, thereby creating a partially dehydrated first fibrous web, (E-1) Spraying the partially dehydrated first fibrous web on at least one surface side with a spray solution or spray suspension, which results in a sprayed partially dehydrated first fibrous web, (F-1) Dehydrating the sprayed partially dehydrated first fibrous web by applying heat to form the dried single-layer paper, or containing the above step (A) and steps for a multi-layer paper (B) Dewatering a second aqueous fibrous suspension, thereby creating a second fibrous web having a dry content between 14% wt. and 25% wt.Type: ApplicationFiled: October 10, 2018Publication date: June 24, 2021Applicant: SOLENIS TECHNOLOGIES CAYMAN, L.P.Inventors: Christoph HAMERS, Anton ESSER, Frans DE BRUYN, Christoph Alan GRAY, Ralph ISERMANN
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Publication number: 20200240084Abstract: A method for the production of paper or cardboard is provide comprising the following steps: (A) Adding a water soluble polymer P to a first aqueous pulp suspension, wherein polymer P is obtainable by Polymerizing to a polymer V of (i) 33 to 83 mol % of a monomer of formula I in which R1?H or C1-C6 alkyl, (ii) 6 to 56 mol % of diallyl dimethyl ammonium chloride, diallyl diethyl ammonium chloride or a salt form of a monoethylenically unsaturated monomer, (iii) 11 to 61 mol % of a monoethylenically unsaturated carboxylic acid, sulfonic acid or phosphonic acid, or salt forms thereof, (iv) 0 to 50 mol % of one or more ethylenically unsaturated monomers, and hydrolyzing the N—C(?O)R1 groups to form primary amino or amidine groups, (B) dehydrating the second aqueous pulp suspension to a wet paper structure, (C) dehydrating the wet paper structure.Type: ApplicationFiled: October 1, 2018Publication date: July 30, 2020Applicant: SOLENIS TECHNOLOGIES CAYMAN, L.P.Inventors: Christoph HAMERS, Hans-Joachim HAEHNLE, Kai PAHNKE, Anton ESSER
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Publication number: 20190271115Abstract: Embodiments disclosed herein provide enzymatic formulations comprising a polypeptide having amylase activity for producing a paper product. Also provided are aqueous surface treatment compositions for paper and board comprising degraded starch. Further provided are methods for producing paper and board using the aqueous surface treatment composition, and to corrugated boards produced from this paper.Type: ApplicationFiled: August 12, 2016Publication date: September 5, 2019Applicant: BASF SEInventors: Christoph HAMERS, Konstantino KARANIKAS, Kenneth BARRETT, Zheng TAN
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Patent number: 10047480Abstract: The present invention relates to a process for producing corrugated fiberboard from plies of paper which each have a grammage of 70 to 200 g/m2 and of which at least one ply of paper is obtained by a process comprising the addition of (A) 0.25 to 5 wt %, based on dry paper stock, of at least one cationic polymer comprising vinylamine units, and (B) 0 to 5 wt %, based on dry paper stock, of at least one polymeric anionic compound, to a paper stock, draining the paper stock by sheet formation, coating the paper web obtained with (C) 0.Type: GrantFiled: March 10, 2015Date of Patent: August 14, 2018Assignee: BASF SEInventors: Matthew Buchan, Reinhard Haffke, Guido Rensen, Christoph Hamers, Norbert Schall
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Publication number: 20180209099Abstract: The present invention relates to an aqueous surface coating composition for paper and board with a solids content of 1 to 55 wt % comprising (A) 0 to 20 parts by weight of starch (solids), (B) 0.01 to 20 parts by weight of a zirconium carbonate compound, (C) 0.01 to 40 parts by weight of water-soluble synthetic polymer (solids) containing in copolymerized form one or more monomers having monoethylenic double bonds, and also to a method for producing paper and board using the aqueous surface coating composition, and to corrugated boards produced from this paper.Type: ApplicationFiled: June 23, 2015Publication date: July 26, 2018Applicant: BASF SEInventors: Christoph HAMERS, Maria HEUKEN
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Patent number: 9982392Abstract: An antifoaming agent, based on an oil-in-water emulsion in which the oil phase accounts for from 5-50% by weight of the emulsion, where the oil phase includes: (a) at least one selected from the group consisting of (a1) an alcohol of not less than 12 carbon atoms and (a2) a C1-C36-carboxylic acid, a distillation residue; (d) a component including (d1) a polyglyceryl ester and (d2) a C18-C30 alkyl behenate, wherein the component (d) accounts for 1-80% by weight of the oil phase of the emulsion.Type: GrantFiled: November 17, 2014Date of Patent: May 29, 2018Assignee: BASF SEInventors: Holger Kern, Christoph Hamers, Klaus Moeller, Uwe Albrecht
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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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Publication number: 20170233950Abstract: The invention relates to an aqueous composition comprising (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 amidine groups of the polymers, wherein the pH of the aqueous composition is ?6, and further to its use as strength enhancer and to a method of producing paper and board, employment of the aqueous composition and also the paper and board thus obtained.Type: ApplicationFiled: August 14, 2015Publication date: August 17, 2017Applicant: BASF SEInventors: Hans-Joachim HAEHNLE, Christoph HAMERS, Anton ESSER, Stefan SPANGE, Katja TROMMLER, Hendryk WUERFEL, Susan SEIFERT, Tina WALTHER
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Publication number: 20170183821Abstract: The present invention relates to a process for producing corrugated fiberboard from plies of paper which each have a grammage of 70 to 200 g/m2 and of which at least one ply of paper is obtained by a process comprising the addition of (A) 0.25 to 5 wt %, based on dry paper stock, of at least one cationic polymer comprising vinylamine units, and (B) 0 to 5 wt %, based on dry paper stock, of at least one polymeric anionic compound, to a paper stock, draining the paper stock by sheet formation, coating the paper web obtained with (C) 0.Type: ApplicationFiled: March 10, 2015Publication date: June 29, 2017Inventors: Matthew BUCHAN, Reinhard HAFFKE, Leonardus Guido Antonius RENSEN, Christoph HAMERS, Norbert SCHALL
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Publication number: 20160265162Abstract: The present invention which provides antifoaming agents for the paper industry, based on oil-in-water emulsions, in which the oil phase accounts for from 5 to 50% by weight of the emulsion if the oil phase of the emulsions contains (a) an alcohol of not less than 12 carbon atoms, fatty esters of alcohols of not less than 22 carbon atoms and C1-C36-carboxylic acids, distillation residues which are obtainable in the preparation of alcohols having a relatively large number of carbon atoms by the oxo synthesis or by the Ziegler method and which may furthermore be alkoxylated, a mixture of the stated compounds and (b) optionally a fatty ester of a C12-C22-carboxylic acid with a monohydric to trihydric C1-C18-alcohol and, (c) optionally a hydrocarbon having a boiling point above 200° C.Type: ApplicationFiled: November 17, 2014Publication date: September 15, 2016Applicant: BASF SEInventors: Holger KERN, Christoph HAMERS, Klaus MÖLLER, Uwe ALBRECHT
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Patent number: 9315943Abstract: A finely divided, starch-containing polymer dispersion which is obtainable by free radical emulsion polymerization of ethylenically unsaturated monomers in the presence of at least one redox initiator and starch, wherein (a) from 0 to less than 40% by weight of at least one optionally substituted styrene, (b) from greater than 60 to 100% by weight of at least one C1-C12-alkyl acrylate and/or C1-C12-alkyl methacrylate, (c) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer, are used as the ethylenically unsaturated monomers, the sum (a)+(b)+(c) being 100% and being based on the active monomer content and (d) from 15 to 40% by weight of at least one degraded starch which has a molar mass Mw of from 1000 to 65 000 g/mol, based on the total weight of solids content of components (a)+(b)+(c)+(d), are used as the starch, and the polymerization being carried out in the presence of at least 0.Type: GrantFiled: October 11, 2012Date of Patent: April 19, 2016Assignee: BASF SEInventors: Carmen-Elena Cimpeanu, Holger Kern, Petra Arnold, Christoph Hamers
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Publication number: 20160083909Abstract: A finely divided, starch-containing polymer dispersion which is obtainable by free radical emulsion polymerization of ethylenically unsaturated monomers in the presence of at least one redox initiator and starch, wherein (a) from 0 to less than 40% by weight of at least one optionally substituted styrene, (b) from greater than 60 to 100% by weight of at least one C1-C12-alkyl acrylate and/or C1-C12-alkyl methacrylate, (c) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer, are used as the ethylenically unsaturated monomers, the sum (a)?(b)+(c) being 100% and being based on the active monomer content and (d) from 15 to 40% by weight of at least one degraded starch which has a molar mass Mw of from 1000 to 65 000 g/mol, based on the total weight of solids content of components (a)+(b)+(c)+(d), are used as the starch, and the polymerization being carried out in the presence of at least 0.Type: ApplicationFiled: December 4, 2015Publication date: March 24, 2016Applicant: BASF SEInventors: Carmen-Elena Cimpeanu, Holger Kern, Petra Arnold, Christoph Hamers
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Publication number: 20140275415Abstract: A finely divided, starch-containing polymer dispersion which is obtainable by free radical emulsion polymerization of ethylenically unsaturated monomers in the presence of at least one redox initiator and starch, wherein (a) from 0 to less than 40% by weight of at least one optionally substituted styrene, (b) from greater than 60 to 100% by weight of at least one C1-C12-alkyl acrylate and/or C1-C12-alkyl methacrylate, (c) from 0 to 10% by weight of at least one other ethylenically unsaturated copolymerizable monomer, are used as the ethylenically unsaturated monomers, the sum (a)+(b)+(c) being 100% and being based on the active monomer content and (d) from 15 to 40% by weight of at least one degraded starch which has a molar mass Mw of from 1000 to 65000 g/mol, based on the total weight of solids content of components (a)+(b)+(c)+(d), are used as the starch, and the polymerization being carried out in the presence of at least 0.Type: ApplicationFiled: October 11, 2012Publication date: September 18, 2014Applicant: BASF SEInventors: Carmen-Elena Cimpeanu, Holger Kern, Petra Arnold, Christoph Hamers
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Patent number: 8592002Abstract: A process for the production of singly and/or multiply coated paper and/or board, except for photographic papers and self-adhesive labeling papers, which are particularly suitable for printing, packaging and inscription, is described. The substrate, for example base paper or board, is coated once or several times with a free-falling liquid curtain, the coating liquid having in particular an extensional viscosity of from 1 to 1000 Pa·s at a Hencky strain of from 1 to 15.Type: GrantFiled: September 15, 2005Date of Patent: November 26, 2013Assignee: BASF AktiengesellschaftInventors: Erich Krumbacher, Norbert Willenbacher, Oliver Birkert, Martin Schachtl, Christoph Hamers, Martin Tietz, Uwe Froehlich