Patents by Inventor Heribert Holtkamp

Heribert Holtkamp 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: 20240002582
    Abstract: The invention relates to a composition comprising a mixture of compounds according to formula (I) wherein IC1 and IC2 independently of one another and of each occurrence represent a hydrocarbyl group, AM independently of each occurrence represents N a hydrocarbyl group, m is the average number of repeating units from 0 to 20, RP1 and RP2 independently of one another and of each occurrence represent an organic group selected from RP3, RP4, RP5, wherein RP3 represents a hydrocarbyl group, RP4 represents an t7 organic group according to formula (II) RP41-(AO)n- wherein RP41 represents a hydrocarbyl group having 1 to 24 carbon atoms, AO represents an alkylene oxide repeating unit and n is the average number of repeating units from 6 to 30, RP5 represents an organic group N according to formula (III) RP51-(AO)p- wherein RP51 represents a hydrocarbyl group having 1 to 24 carbon atoms, AO represents an CN alkylene oxide repeating unit and p is the average number of repeating units from 1 to 5, wherein the mixture co
    Type: Application
    Filed: December 1, 2021
    Publication date: January 4, 2024
    Inventors: Dominika Chajda, René Nagelsdiek, Vera Leonhard, Heribert Holtkamp
  • 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: 9340641
    Abstract: Addition compound suitable as wetting and dispersing agent, obtainable from the reaction of A) polyepoxides with B) at least one primary polyoxyalkyleneamine C) at least one other aliphatic and/or araliphatic primary amine and D) at least one modified isocyanate.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: May 17, 2016
    Assignee: BYK-Chemie GmbH
    Inventors: Ulrich Orth, Heribert Holtkamp, Jürgen Omeis
  • Patent number: 8653222
    Abstract: Reaction products of polyepoxides with amines followed by reaction with polyalkyleneoxide modified and/or polyester-modified and/or polyether-polyester-modified isocyanates give comblike aminic polymers, and their salts. The compounds are useful as wetting and dispersing agents for organic and inorganic pigments, and as fillers for aqueous and solvent-borne systems.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: February 18, 2014
    Assignee: BYK-Chemie GmbH
    Inventors: Ulrich Orth, Jürgen Omeis, Heribert Holtkamp, Matthias Pickavé
  • Publication number: 20130018126
    Abstract: Addition compound suitable as wetting and dispersing agent, obtainable from the reaction of A) polyepoxides with B) at least one primary polyoxyalkyleneamine C) at least one other aliphatic and/or araliphatic primary amine and D) at least one modified isocyanate.
    Type: Application
    Filed: December 8, 2010
    Publication date: January 17, 2013
    Applicant: BYK-CHEMIE GMBH
    Inventors: Ulrich Orth, Heribert Holtkamp, Jürgen Omeis
  • Patent number: 8153731
    Abstract: The present invention relates to comb (block) copolymers obtainable by reacting I at least one (block) copolymer comprising polymerized, optionally substituted styrene and maleic anhydride units, which copolymer has been obtained by living, free-radical polymerization, with II at least one polyalkylene oxide monoamine comprising a primary amino end group at a reaction temperature of ?150° C. and by subsequent salification of at least 25 mol % of the free carboxyl groups of the reaction product at a reaction temperature of <100° C. and optionally after addition of H2O and to the use of these comb copolymers as wetting agents and dispersants.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: April 10, 2012
    Assignee: BYK=Chemie GmbH
    Inventors: Bernd Göbelt, Jürgen Omeis, Ulrich Orth, Heribert Holtkamp, Marcus Meichsner
  • Publication number: 20100099813
    Abstract: The present invention relates to comb (block) copolymers obtainable by reacting I at least one (block) copolymer comprising polymerised, optionally substituted styrene and maleic anhydride units, which copolymer has been obtained by living, free-radical polymerisation, with II at least one polyalkylene oxide monoamine comprising a primary amino end group at a reaction temperature of ?150° C. and by subsequent salification of at least 25 mol % of the free carboxyl groups of the reaction product at a reaction temperature of <100° C. and optionally after addition of H2O and to the use of these comb copolymers as wetting agents and dispersants.
    Type: Application
    Filed: December 21, 2007
    Publication date: April 22, 2010
    Applicant: BYK-CHEMIE GMBH
    Inventors: Bernd Göbelt, Jürgen Omeis, Ulrich Orth, Heribert Holtkamp, Marcus Meichsner
  • Publication number: 20090221745
    Abstract: Addition compound suitable as a wetting and dispersing agent and obtainable from the reaction of A) polyepoxides with B) at least one aliphatic and/or araliphatic primary amine of the general formula I H2N—R??I where R is alkyl, cycloalkyl, aryl and aralkyl, and where the primary amine may also carry further functional groups selected from —OH, tertiary amine or carboxyl, and subsequent addition reaction of C) at least one modified isocyanate of the general formula IIa and/or IIb where R3 is alkyl, cycloalkyl, aryl or aralkyl, R1 and R2 independently of one another are H, alkyl and/or aryl, X is alkylene, cycloalkylene and/or aralkylene, Y is alkylene and/or cycloalkylene and n and m are independent of one another, the sum n+m being ?2, to form a urethane.
    Type: Application
    Filed: January 31, 2008
    Publication date: September 3, 2009
    Applicant: BYK-Chemie GmbH
    Inventors: Ulrich Orth, Jürgen Omeis, Heribert Holtkamp, Matthias Pickavé
  • Patent number: 6617468
    Abstract: The invention relates to a process for preparing a solution which comprises urea urethanes and is effective as a thixotropic agent, which involves reacting at least two structurally different monohydroxy compounds with an excess of toluene diisocyanate to form monoisocyanate adducts, removing the unreacted portion of the toluene diisocyanate, and reacting the resultant monoisocyanate adducts with diamines in an aprotic solvent in the presence of a lithium salt to form urea urethanes. The invention also relates to the use of the solution to receive thixotropic coating compositions.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: September 9, 2003
    Assignee: BYK-Chemie GmbH
    Inventors: Karlheinz Haubennestel, Ulrich Orth, Axel Woocker, Heribert Holtkamp, Christoph Buchmann
  • Publication number: 20020115882
    Abstract: The invention relates to a process for preparing a solution which comprises urea urethanes and is effective as a thixotropic agent, which involves reacting at least two structurally different monohydroxy compounds with an excess of toluene diisocyanate to form monoisocyanate adducts, removing the unreacted portion of the toluene diisocyanate, and reacting the resultant monoisocyanate adducts with diamines in an aprotic solvent in the presence of a lithium salt to form urea urethanes. The invention also relates to the use of the solution to receive thixotropic coating compositions.
    Type: Application
    Filed: August 16, 2001
    Publication date: August 22, 2002
    Inventors: Karlheinz Haubennestel, Ulrich Orth, Axel Woocker, Heribert Holtkamp, Christoph Buchmann