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).

  • Patent number: 11293143
    Abstract: 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: Grant
    Filed: October 10, 2018
    Date of Patent: April 5, 2022
    Assignee: Solenis Technologies, L.P.
    Inventors: Christoph Hamers, Anton Esser, Frans De Bruyn, Christopher Alan Gray, Ralph Isermann
  • Patent number: 11286621
    Abstract: 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: Grant
    Filed: August 12, 2016
    Date of Patent: March 29, 2022
    Assignee: BASF SE
    Inventors: Christoph Hamers, Konstantino Karanikas, Kenneth Barrett, Zheng Tan
  • Publication number: 20210395406
    Abstract: 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: Application
    Filed: June 23, 2021
    Publication date: December 23, 2021
    Inventors: Florian Taubert, Lysann Kaßner, Tina Uhlig, Andreas Seifert, Stefan Spange, Michael Sommer, Christoph Hamers, Hans-Joachim Haehnle
  • Patent number: 11203838
    Abstract: 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: Grant
    Filed: October 1, 2018
    Date of Patent: December 21, 2021
    Inventors: Christoph Hamers, Hans-Joachim Haehnle, Kai Pahnke, Anton Esser
  • Publication number: 20210222371
    Abstract: 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: Application
    Filed: October 10, 2018
    Publication date: July 22, 2021
    Applicant: SOLENIS TECHNOLOGIES CAYMAN, L.P.
    Inventors: Christoph HAMERS, Anton ESSER, Frans DE BRUYN, Christopher Alan GRAY, Ralph ISERMANN
  • Publication number: 20210189658
    Abstract: 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: Application
    Filed: October 10, 2018
    Publication date: June 24, 2021
    Applicant: SOLENIS TECHNOLOGIES CAYMAN, L.P.
    Inventors: Christoph HAMERS, Anton ESSER, Frans DE BRUYN, Christoph Alan GRAY, Ralph ISERMANN
  • Publication number: 20200240084
    Abstract: 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: Application
    Filed: October 1, 2018
    Publication date: July 30, 2020
    Applicant: SOLENIS TECHNOLOGIES CAYMAN, L.P.
    Inventors: Christoph HAMERS, Hans-Joachim HAEHNLE, Kai PAHNKE, Anton ESSER
  • Publication number: 20190271115
    Abstract: 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: Application
    Filed: August 12, 2016
    Publication date: September 5, 2019
    Applicant: BASF SE
    Inventors: Christoph HAMERS, Konstantino KARANIKAS, Kenneth BARRETT, Zheng TAN
  • Patent number: 10047480
    Abstract: 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: Grant
    Filed: March 10, 2015
    Date of Patent: August 14, 2018
    Assignee: BASF SE
    Inventors: Matthew Buchan, Reinhard Haffke, Guido Rensen, Christoph Hamers, Norbert Schall
  • Publication number: 20180209099
    Abstract: 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: Application
    Filed: June 23, 2015
    Publication date: July 26, 2018
    Applicant: BASF SE
    Inventors: Christoph HAMERS, Maria HEUKEN
  • Patent number: 9982392
    Abstract: 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: Grant
    Filed: November 17, 2014
    Date of Patent: May 29, 2018
    Assignee: BASF SE
    Inventors: Holger Kern, Christoph Hamers, Klaus Moeller, Uwe Albrecht
  • Publication number: 20170362776
    Abstract: 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: Application
    Filed: December 4, 2015
    Publication date: December 21, 2017
    Applicant: BASF SE
    Inventors: Hans-Joachim HAEHNLE, Christoph HAMERS, Anton ESSER, Hubert MEIXNER, Matthew BUCHAN, Norbert SCHALL, Stefan SPANGE, Katja TROMMLER, Hendryk WUERFEL, Susan SEIFERT, Tina WALTHER
  • Publication number: 20170233950
    Abstract: 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: Application
    Filed: August 14, 2015
    Publication date: August 17, 2017
    Applicant: BASF SE
    Inventors: Hans-Joachim HAEHNLE, Christoph HAMERS, Anton ESSER, Stefan SPANGE, Katja TROMMLER, Hendryk WUERFEL, Susan SEIFERT, Tina WALTHER
  • Publication number: 20170183821
    Abstract: 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: Application
    Filed: March 10, 2015
    Publication date: June 29, 2017
    Inventors: Matthew BUCHAN, Reinhard HAFFKE, Leonardus Guido Antonius RENSEN, Christoph HAMERS, Norbert SCHALL
  • Publication number: 20160265162
    Abstract: 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: Application
    Filed: November 17, 2014
    Publication date: September 15, 2016
    Applicant: BASF SE
    Inventors: Holger KERN, Christoph HAMERS, Klaus MÖLLER, Uwe ALBRECHT
  • Patent number: 9315943
    Abstract: 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: Grant
    Filed: October 11, 2012
    Date of Patent: April 19, 2016
    Assignee: BASF SE
    Inventors: Carmen-Elena Cimpeanu, Holger Kern, Petra Arnold, Christoph Hamers
  • Publication number: 20160083909
    Abstract: 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: Application
    Filed: December 4, 2015
    Publication date: March 24, 2016
    Applicant: BASF SE
    Inventors: Carmen-Elena Cimpeanu, Holger Kern, Petra Arnold, Christoph Hamers
  • Publication number: 20140275415
    Abstract: 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: Application
    Filed: October 11, 2012
    Publication date: September 18, 2014
    Applicant: BASF SE
    Inventors: Carmen-Elena Cimpeanu, Holger Kern, Petra Arnold, Christoph Hamers
  • Patent number: 8592002
    Abstract: 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: Grant
    Filed: September 15, 2005
    Date of Patent: November 26, 2013
    Assignee: BASF Aktiengesellschaft
    Inventors: Erich Krumbacher, Norbert Willenbacher, Oliver Birkert, Martin Schachtl, Christoph Hamers, Martin Tietz, Uwe Froehlich
  • Patent number: 8343312
    Abstract: Process for the production of filler-containing papers and filler-containing paper products by addition of an aqueous suspension of at least one finely divided polymer-pigment hybrid to a paper stock and drainage of the paper stock with sheet formation, the polymer-pigment hybrid being obtainable by milling an aqueous suspension of at least one inorganic pigment in the presence of at least one binder and, if appropriate, by drying the aqueous suspension thus obtainable and redispersing the dried polymer-pigment hybrid in water, and the use of the polymer-pigment hybrids thus obtainable as a filler for the production of filler-containing paper or filler-containing paper products.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: January 1, 2013
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Mahr, Dieter Meck, Rainer Blum, Ralf Hemel, Norbert Gispert, Juergen Schmidt-Thuemmes, Christoph Hamers