Patents by Inventor Klaus Dziwok

Klaus Dziwok 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).

  • Publication number: 20220243074
    Abstract: The invention deals with a composition comprising an organically modified silicate, and an organic compound having at least one non-primary amine group and at least three hydroxyl groups, wherein at least two of said hydroxyl groups have an amino group in beta position of the hydroxyl group, and wherein said at least two hydroxyl groups having an amino group in beta position of the hydroxyl group are separated by at least 6 carbon atoms, and wherein at least a part of the hydroxyl groups of the organic compound are secondary hydroxyl groups.
    Type: Application
    Filed: July 8, 2020
    Publication date: August 4, 2022
    Inventors: Dominika Beata Chajda, René Nagelsdiek, Sylvia Bühne, Klaus Dziwok, Heribert Holtkamp, Christoph Verlinden
  • Patent number: 9670339
    Abstract: The invention relates to the use of at least one mixed mineral organoclay rheology additive in a liquid composition comprising at least one epoxy resin, the additive comprises or consists of a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the aqueous hormite clay slurry (a) with the aqueous smectite clay slurry (b) to form a combined clay slurry (c), treating the combined clay slurry (c) with one or more quaternary alkyl-ammonium salts, and separating the produced quaternary alkyl-ammonium salt treated mineral clay mixture from the aqueous medium. The invention also relates to a process for producing a mixed mineral organoclay rheology additive and the use of the thus produced additive as a thickening agent in liquid compositions.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: June 6, 2017
    Assignee: BYK USA Inc.
    Inventors: Klaus Dziwok, Helmut Coutelle, Robert G. Briell, Tyler Nash
  • Patent number: 9637614
    Abstract: The invention relates to the use of at least one mixed mineral organoclay rheology additive, which comprises or consists of a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the aqueous hormite clay slurry (a) with the aqueous smectite clay slurry (b) to form a combined clay slurry (c), treating the combined clay slurry (c) with one or more quaternary alkyl-ammonium salts, and separating the thus produced quaternary alkyl-ammonium salt treated mineral clay mixture from the aqueous medium. The invention also relates to a process for producing a mixed mineral organoclay rheology additive and the use of the thus produced additive as a thickening agent in liquid compositions.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: May 2, 2017
    Assignee: BYK USA Inc.
    Inventors: Klaus Dziwok, Helmut Coutelle, Robert G. Briell, Tyler Nash
  • Patent number: 9546252
    Abstract: The invention relates to the use of at least one mixed mineral organoclay rheology additive, which comprises or consists of a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the aqueous hormite clay slurry (a) with the aqueous smectite clay slurry (b) to form a combined clay slurry (c), treating the combined clay slurry (c) with one or more quaternary alkyl-ammonium salts, separating the thus produced quaternary alkyl-ammonium salt treated mineral clay mixture from the aqueous medium, in which the aqueous hormite clay slurry (a) being formed by (i.1) dispersing a fraction of one or more hormite clays selected from the group of sepiolites and palygorskites in an aqueous medium to form a dispersion, and the aqueous smectite clay slurry (b) being formed by (ii.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: January 17, 2017
    Assignees: BYK-Chemie GmbH, BYK Additives, Inc.
    Inventors: Klaus Dziwok, Helmut Coutelle, Robert G. Briell, Tyler Nash
  • Patent number: 9522981
    Abstract: The invention relates to the use of at least one mixed mineral organoclay rheology additive, which comprises or consists of a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the aqueous hormite clay slurry (a) with the aqueous smectite clay slurry (b) to form a combined clay slurry (c), treating the combined clay slurry (c) with one or more quaternary alkyl-ammonium salts, in which the aqueous hormite clay slurry (a) being formed by dispersing a fraction of one or more hormite clays selected from the group of sepiolites and palygorskites in an aqueous medium to form a dispersion, and whereby the hormite clay fraction employed contains less than 3.0% by weight of Al2O3, less than 1.0% by weight of Fe2O3, and less than 3.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: December 20, 2016
    Assignees: BYK-Chemie GmbH, BYK Additives, Inc.
    Inventors: Klaus Dziwok, Helmut Coutelle, Robert G. Briell, Tyler Nash
  • Patent number: 7335699
    Abstract: A description is given of water-soluble aminoplast ether copolymers of the following structural type: wherein Z is a glycoluril central unit, B is a radical of an essentially water-insoluble polymer and R1 is a radical of a hydrophilic organic compound. The ratio R1:B is selected within a range of about 1.5 to 4:1 and the overall mass of the water-soluble aminoplast ether copolymer is from about 2000 to 50 000 g/mol such that the copolymer is soluble in water and may be used as a dispersant for e.g. pigments in polar solvents, e.g. water.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: February 26, 2008
    Assignee: Sud-Chemie AG
    Inventors: Klaus Dziwok, Inge Krämer, Norbert Schall, Helmut Coutelle, Sabine Huth, Alan Steinmetz, Thadeus Schauer, Heinz Greisiger, Mark Entenmann
  • Publication number: 20070161745
    Abstract: An associative thickener preparation having a viscosity in aqueous solution of less than 25 000 mPa·s is described, comprising (a) a combination of at least one associative thickener (A) having a structural viscosity and at least one Newtonian associative thickener (B); and/or (b) a combination of at least one associative thickener (A) having a structural viscosity, at least one Newtonian associative thickener (B) and at least one thinner (C); and/or (c) a combination of at least one associative thickener (A) having a structural viscosity, at least one Newtonian associative thickener (B) and at least one wetting agent; and/or (d) a combination of at least one associative thickener (A) having a structural viscosity, at least one Newtonian associative thickener (B) and at least one solvent; and/or (e) a combination of at least one associative thickener (A) having a structural viscosity, at least one Newtonian associative thickener (B), at least one solvent and at least one wetting agent; and/or (f) a combinatio
    Type: Application
    Filed: March 7, 2004
    Publication date: July 12, 2007
    Inventors: Helmut Coutelle, Klaus Dziwok
  • Patent number: 6929860
    Abstract: Surface-modified fillers are described characterized by the fact that the fillers represent reactive inorganic fillers and the modifying agent represents an amphiphilic aminoplastic-ether polymer or copolymer of the structural type in which: Z denotes the same or different aminoplastic central units based on melamine-formaldehyde or urea-formaldehyde derivatives; n=10 to 500; R denotes the group —[O—CH2—CH2]mO—S in which m=5 to 500 and S represents a substituted or unsubstituted alkyl, aryl, alkaryl or aralkyl group.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: August 16, 2005
    Assignee: Sud-Chemie AG
    Inventors: Alan Lawrence Steinmetz, Norbert Schall, Klaus Dziwok, Helmut Coutelle, Wolfgang Simon, Stefan Dick, Inge Krämer, Hubert Schiessling
  • Publication number: 20040102585
    Abstract: Graft polymers or copolymers of the structural type are described 1
    Type: Application
    Filed: July 17, 2003
    Publication date: May 27, 2004
    Inventors: Alan Lawrence Steinmetz, Norbert Schall, Klaus Dziwok, Helmut Coutelle, Wolfgang Simon, Stefan Dick, Inge Kramer
  • Publication number: 20030165684
    Abstract: Surface-modified fillers are described characterized by the fact that the fillers represent reactive inorganic fillers and the modifying agent represents an amphiphilic aminoplastic-ether polymer or copolymer of the structural type 1
    Type: Application
    Filed: April 29, 2003
    Publication date: September 4, 2003
    Inventors: Alan Lawrence Steinmetz, Norbert Schall, Klaus Dziwok, Helmut Coutelle, Wolfgang Simon, Stefan Dick, Inge Kramer, Hubert Schiessling
  • Patent number: 5948156
    Abstract: A supplementing agent for mineral binder systems is disclosed, especially for the construction industry, containing at least 1 finely divided, swellable layer silicate and possible at least 1 other additive, the proportion of the swellable layer silicate being more than 60 wt. % and the swelling volume of the layer silicate being around 5-50 ml, in terms of a suspension of 2 g layer silicate in 100 ml water.
    Type: Grant
    Filed: July 31, 1997
    Date of Patent: September 7, 1999
    Assignee: Sud-Chemie, AG
    Inventors: Helmut Coutelle, Klaus Dziwok