Patents by Inventor Birgit Potthoff-Karl

Birgit Potthoff-Karl 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: 10280387
    Abstract: Aqueous formulation containing (A) at least one pigment or at least one dyestuff, (B) at least one dispersant selected from (B1) copolymers of at least one ethylenically unsaturated C4-C10-dicarboxylic acid and at least one C4-C20-olefin and their respective alkali metal salts and (B2) aromatic sulfonic acids and their respective alkali metal salts.(C) at least one chelating agent selected from MGDA, GLDA, IDS and citric acid and their respective ammonium and alkali metal salts. (D) water, wherein the concentration of the pigment (A) or dyestuff (A) is in the range of from 5 to 500 ppm, referring to the total aqueous formulation, and wherein the weight ratio of dispersant (B) to the pigment (A) or dyestuff (A), respectively, is in the range of from 1:5 to 3:1.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: May 7, 2019
    Assignee: BASF SE
    Inventors: Marta Reinoso Garcia, Markus Hartmann, Birgit Potthoff-Karl
  • Publication number: 20180016527
    Abstract: Aqueous formulation containing (A) at least one pigment or at least one dyestuff, (B) at least one dispersant selected from (B1) copolymers of at least one ethylenically unsaturated C4-C10-dicarboxylic acid and at least one C4-C20-olefin and their respective alkali metal salts and (B2) aromatic sulfonic acids and their respective alkali metal salts.(C) at least one chelating agent selected from MGDA, GLDA, IDS and citric acid and their respective ammonium and alkali metal salts. (D) water, wherein the concentration of the pigment (A) or dyestuff (A) is in the range of from 5 to 500 ppm, referring to the total aqueous formulation, and wherein the weight ratio of dispersant (B) to the pigment (A) or dyestuff (A), respectively, is in the range of from 1:5 to 3:1.
    Type: Application
    Filed: February 1, 2016
    Publication date: January 18, 2018
    Applicant: BASF SE
    Inventors: Marta REINOSO GARCIA, Markus HARTMANN, Birgit POTTHOFF-KARL
  • Patent number: 7119058
    Abstract: Graft polymers containing (A) a polymeric grafting base devoid of monoethylenically unsaturated units, and (B) polymeric side chains formed by polymerization of a cyclic N-vinylamide of the general formula I where R is C1–C5-alkyl and R1 is hydrogen or C1–C4-alkyl, wherein said side chains (B) account for ?60% by weight of the total polymer.
    Type: Grant
    Filed: November 11, 2002
    Date of Patent: October 10, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Pia Baum, Christine Mueller, Anke Oswald, Birgit Potthoff-Karl
  • Patent number: 7101836
    Abstract: Graft polymer, comprising (A) a polymer graft skeleton with no mono-ethylenic unsaturated units and (B) polymer sidechains formed from co-polymers of two different mono-ethylenic unsaturated monomers (B1) and (B2), each comprising a nitrogen-containing heterocycle, whereby the proportion of the sidechains (B) amounts to more than 55 wt. % of the total polymer.
    Type: Grant
    Filed: November 11, 2002
    Date of Patent: September 5, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Pia Baum, Christine Mueller, Anke Oswald, Birgit Potthoff-Karl
  • Publication number: 20060116311
    Abstract: The use of copolymers containing units derived from at least 2 monoethylenically unsaturated monomers B1 and B2 which each contain at least one nitrogenous heterocycle, as auxiliaries for textile dyeing and textile printing.
    Type: Application
    Filed: November 28, 2003
    Publication date: June 1, 2006
    Inventors: Pia Baum, Nicola Kulzer, Frank Funke, Andreas Bastian, Markus Ringelsbacher, Heinz Heissler, Gerhard Reuther, Rouven Konrad, James Carnahan, Karl Siemensmeyer, Birgit Potthoff-Karl, Tarja Schneider, Johann Muller
  • Publication number: 20050171287
    Abstract: Graft polymers containing (A) a polymeric grafting base devoid of monoethylenically unsaturated units, and (B) polymeric side chains formed from copolymers of two different monoethylenically unsaturated monomers (B1) and (B2) which each contain at least one nitrogeneous heterocycle, wherein said side chains (B) account for from 35 to 55% by weight of the total polymer.
    Type: Application
    Filed: November 11, 2002
    Publication date: August 4, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Pia Baum, Christine Muller, Anke Oswald, Birgit Potthoff-Karl
  • Publication number: 20050004322
    Abstract: Graft polymers containing (A) a polymeric grafting base devoid of monoethylenically unsaturated units, and (B) polymeric side chains formed by polymerization of a cyclic N-vinylamide of the general formula I where R is C1-C5-alkyl and R1 is hydrogen or C1-C4-alkyl, wherein said side chains (B) account for ?60% by weight of the total polymer.
    Type: Application
    Filed: November 11, 2002
    Publication date: January 6, 2005
    Inventors: Pia Baum, Christine Muller, Anke Oswald, Birgit Potthoff-Karl
  • Publication number: 20040266655
    Abstract: Graft polymer, comprising (A) a polymer graft skeleton with no mono-ethylenic unsaturated units and (B) polymer sidechains formed from co-polymers of two different mono-ethylenic unsaturated monomers (B1) and (B2), each comprising a nitrogen-containing heterocycle, whereby the proportion of the sidechains (B) amounts to more than 55 wt. % of the total polymer.
    Type: Application
    Filed: May 7, 2004
    Publication date: December 30, 2004
    Inventors: Pia Baum, Christine Muller, Anke Oswald, Birgit Potthoff-Karl
  • Patent number: 6437181
    Abstract: The invention describes a process for the preparation of (S,S)-N,N′-ethylenediaminedisuccinic acid or analogous compounds or their salts by reaction of L-aspartic acid, L-glutamic acid or L-cysteic acid with 1,2-bissulfooxyethane, 1,3,2-dioxathiolane 2,2-dioxide or mixtures thereof or 1,3-bissulfooxy-2-hydroxypropane in the presence of a base, and optional subsequent acidification with an acid. Also described is a process for the preparation of (S,S)-N,N′-ethylenediaminedisuccinic acid or analogous compounds or their salts by reaction of N-(2-sulfooxyethyl)-L-aspartic acid or its salts with L-aspartic acid or corresponding compounds based on L-glutamic acid, L-cysteic acid and/or 1,3-bissulfooxy-2-hydroxypropane in the presence of a base, and optional subsequent acidification with an acid.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: August 20, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Alfred Oftring, Christian Ott, Birgit Potthoff-Karl
  • Patent number: 6258295
    Abstract: Use of mono- and bisoxime esters I where L1 is an oxime moiety of the formula  where R1 and R2 are hydrogen or organic radicals and Z1 are alkylene groups, L2 is a second oxime moiety L1 or an organic radical attached via an O or N atom, A is a chemical bond or a linker, and m is 0 or 1, as activators for inorganic peroxy compounds, in particular as cold bleach activators or optical brighteners in detergents, cleaners and bleaches and in disinfectants.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: July 10, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Wehlage, Dieter Boeckh, Elisabeth Kappes, Alfred Oftring, Birgit Potthoff-Karl, Werner Bertleff
  • Patent number: 6172028
    Abstract: A mixture comprising (a) from 0.1 to 99% by weight of at least one polycarboxylate having at least 3 carboxyls, (b) from 0.1 to 99% by weight of at least one amine having a pKa value of more than 9, and (c) from 0.1 to 99% by weight of at least one acid selected from the group consisting of mineral acids and organic acids having one or two carboxyls and not more than 10 carbons, with the proviso that the mixture contains less than 24% by weight of triphosphates, is used in detergent and rinse aid formulations.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: January 9, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Baur, Werner Bertleff, Birgit Potthoff-Karl, Beate Ehle, Matthias Kroner, Gunnar Schornick
  • Patent number: 6008176
    Abstract: Glycine-N,N-diacetic acid derivatives and their alkali metal, alkaline earth metal, ammonium and substituted ammonium salts are used as complexing agents for alkaline earth metal and heavy metal ions with the exception of .alpha.-alanine-N,N-diacetic acid as textile detergent builders in powder detergent formulations and as calcium sequestrants in oral hygiene products.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: December 28, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Schneider, Birgit Potthoff-Karl, Alexander Kud, Richard Baur, Alfred Oftring, Thomas Greindl
  • Patent number: 6005141
    Abstract: Glycine-N,N-diacetic acid derivatives and their alkali metal, alkaline earth metal, ammonium and substituted ammonium salts are used as complexing agents for alkaline earth metal and heavy metal ions with the exception of .alpha.-alanine-N,N-diacetic acid as textile detergent builders in powder detergent formulations and as calcium sequestrants in oral hygiene products.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: December 21, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Schneider, Birgit Potthoff-Karl, Alexander Kud, Richard Baur, Alfred Oftring, Thomas Greindl
  • Patent number: 5994290
    Abstract: A solid textile detergent formulation, comprising(A) 1-60% by weight of inorganic builders based on crystalline or amorphous aluminosilicates, crystalline or amorphous silicates, carbonates and/or phosphates,(B) 0.1-25% by weight of one or more glycine-N,N'-diacetic acid derivatives I ##STR1## where R is an organic radical and M is hydrogen or a cation, as organic cobuilders,(C) 1-40% by weight of anionic surfactants and(D) 0.5-30% by weight of nonionic surfactants.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: November 30, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Birgit Potthoff-Karl, Beate Ehle, Angelika Funhoff, Dieter Kiessling, Richard Baur, Thomas Greindl
  • Patent number: 5981798
    Abstract: A crystalline solid which has a sufficiently low hygroscopicity for processing and use and essentially consists of glycine-N,N-diacetic acid derivatives is prepared by adjusting the water content of the starting material containing the glycine-N,N-diacetic acid derivatives to a value of from 10 to 30% by weight, based on the starting material, and subsequently bringing about crystallization.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: November 9, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Schonherr, Matthias Rauls, Hermann Ascherl, Thomas Letzelter, Dieter Baumann, Birgit Potthoff-Karl
  • Patent number: 5972508
    Abstract: The microcapsules containing bleaching agents are obtainable by polymerizing monomer mixtures which comprise5-100% by weight of at least one ethylenically unsaturated carboxylic anhydride (a),0-95% by weight of at least one monoethylenically unsaturated monomer (b) different from the monomers of group (a),0-80% by weight of crosslinking monomers (c) which have at least two nonconjugated monoethylenic double bonds in the molecule, and0-20% by weight of water-soluble monoethylenically unsaturated monomers (d),where the total of components (a) to (d) is 100% by weight. The polymerization takes place in the oil phase of a stable oil-in-water emulsion in the presence of free-radical polymerization initiators, where the temperature of the polymerizing reaction mixture is, where appropriate, increased continuously or periodically during the polymerization. The oil phase contains or consists of the bleaching aid.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: October 26, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Boeckh, Birgit Potthoff-Karl, Werner Bertleff, Peter Neumann, Ekkehard Jahns, Ralf Biastoch, Thomas Wehlage
  • Patent number: 5907055
    Abstract: The use of triacids of the formula I ##STR1## where X.sup.1 to X.sup.3 are, independently of one another, carboxylic acid groups of the formula COOM, sulfonic acid groups of the formula SO.sub.3 M or phosphonic acid groups of the formula PO.sub.3 M.sub.2, whereM is hydrogen, alkali metal, ammonium or substituted ammonium,A.sup.1 to A.sup.3 are, independently of one another, 1,2-alkylene with 2 to 18 carbon atoms,R.sup.1 to R.sup.3 are, independently of one another, C.sub.1 -C.sub.8 -alkylene, andx, y and z are, independently of one another, a number from 0 to 10, where the total of x+y+z must be greater than or equal to 1,as complexing agents for complexing heavy metals or for preparing heavy metal complexes for changing the redox potential, and as builders in detergents and cleaners.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: May 25, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Greindl, Birgit Potthoff-Karl, Alfred Oftring, Thomas Fetzer, Richard Baur, Wolfgang Trieselt
  • Patent number: 5849950
    Abstract: Glycine-N,N-diacetic acid derivatives I ##STR1## where R is unsubstituted or substituted alkyl, alkenyl, alkoxylate groups, phenylalkyl, phenyl, a heterocyclic ring or a radical of the formula ##STR2## where A is an alkylene bridge or a chemical bond, and M is hydrogen, alkali metal, alkaline earth metal, ammonium or substituted ammonium in the appropriate stoichiometric amounts,are prepared by reactingA) corresponding 2-substituted glycines or 2-substituted glycinonitriles or doubled glycines of the formula ##STR3## or doubled glycinonitriles of the formula ##STR4## or precursors of the glycine derivatives named as starting material with formaldehyde and hydrogen cyanide in aqueous medium at a pH of from 0 to 11 orB) iminodiacetonitrile or iminodiacetic acid with appropriate monoaldehydes of the formula R--CHO or dialdehydes of the formula OHC--A--CHO and hydrogen cyanide in aqueous medium at a pH of from 0 to 11and, where appropriate, subsequent hydrolysis of nitrile functionalities which are present, where
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: December 15, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Greindl, Alfred Oftring, Gerold Braun, Jochen Wild, Birgit Potthoff-Karl, Georg Schuh
  • Patent number: 5817864
    Abstract: Glycine-N, N-diacetic acid derivatives are prepared by reacting corresponding 2-substituted glycines, 2-substituted glycinonitriles, doubled glycines, or precursors of the glycine derivatives with formaldehyde and alkali metal cyanide. The reaction is conducted in an aqueous medium at a pH of 8 to 14. From 0, 5 to 30% of the amount of alkali metal cyanide required for the reaction are added to the glycine derivatives or precursors thereof Subsequently, the remaining amount of alkali metal cyanide and the formaldehyde are simultaneously metered in over a period of from 0.5 to 12 hours.
    Type: Grant
    Filed: May 24, 1996
    Date of Patent: October 6, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Greindl, Alfred Oftring, Gerold Braun, Jochen Wild, Birgit Potthoff-Karl, Georg Schuh
  • Patent number: 5786313
    Abstract: Disclosed is the use of glycine-N,N-diacetic acid derivatives as their alkali metal, alkaline earth metal, ammonium and substituted ammonium salts as complexing agents for alkaline earth and heavy metal ions, except with .alpha.-alanine-N,N-diacetic acid, as textile detergent builders in powdered detergent formulations and as calcium sequestering agents in oral hygiene products.
    Type: Grant
    Filed: November 24, 1995
    Date of Patent: July 28, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Schneider, Birgit Potthoff-Karl, Alexander Kud, Richard Baur, Alfred Oftring, Thomas Greindl