Patents by Inventor Stephan Hüffer

Stephan Hüffer 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: 20170057176
    Abstract: The present invention relates to the use of a polymer comprising polymerized units (A) and (B): (A) at least one first monomer of the formula (I) where n is 3 to 12; m is 0 to 3; R1 is C1-C10-alkyl, C2-C10-alkenyl, aryl or aralkyl; R2, R3 and R4 are each, independently of one another, hydrogen, C1-C10-alkyl, C2-C10-alkenyl, aryl or aralkyl; and (B) at least one second monomer of the formula (II) where R5, R6 and R7 are each, independently of one another, hydrogen, C1-C10-alkyl, C2-C10-alkenyl, aryl or aralkyl; R8 is C1-C20-alkyl, C2-C10alkenyl, aryl or aralkyl; as a support material in a fused filament fabrication process.
    Type: Application
    Filed: February 17, 2015
    Publication date: March 2, 2017
    Applicant: BASF SE
    Inventors: Marie-Claire HERMANT, Nikolaus NESTLE, Stephan HUEFFER
  • Patent number: 9550725
    Abstract: Process for the preparation of lipophilic polyalkylenepolyamines by homogeneously catalyzed alcohol amination, where aliphatic amino alcohols are reacted with one another or aliphatic diamines or polyamines are reacted with aliphatic diols or polyols with the elimination of water in the presence of a homogeneous catalyst, at least one of the reactants comprising an alkyl or alkylene group having five or more carbon atoms, and after the reaction a phase separation into at least one apolar phase and at least one polar phase being present, the lipophilic polyalkylenepolyamines being present in enriched form in the apolar phase. Polyalkylenepolyamines obtainable by such processes, and polyalkylenepolyamines comprising hydroxyl groups, secondary amines or tertiary amines.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: January 24, 2017
    Assignee: BASF SE
    Inventors: Julia Strautmann, Thomas Schaub, Stephan Hueffer, Steffen Maas, Claudia Wood
  • Patent number: 9481763
    Abstract: In a method of preparing polyalkyleneimines from alkyleneimines in the presence of a liquid solvent, and a catalyst, the preparing is effected semi-discontinuously in one reaction container. The preparing is optionally effected in the presence of further additives. Polyalkyleneimines obtained by such methods and formulations thereof likewise form part of the subject matter of the invention, especially those having a low proportion of chloride-containing compounds. Such polyalkyleneimines have uses in the field of medical technology, printing media, wastewater treatment, surface treatment, cosmetics, laundry detergents, biotechnology, packaging, electronics, paper, building construction chemistry, textiles, chromatography, ion exchangers, oil industry, ceramics, glass, membrane technology, catalysts, electroplating, biocides or wood protection.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: November 1, 2016
    Assignee: BASF SE
    Inventors: Stephan Hueffer, Andreas Kramer, Frank Dietsche
  • Publication number: 20160312153
    Abstract: The present invention relates to a modified polysaccharide obtainable by a process comprising the step of treating a polysaccharide with gaseous or liquid SO2, a laundry detergent composition comprising said modified polysaccharide, the use of said modified polysaccharide to increase whiteness of a washed fabric, the use of said modified polysaccharide as anti-greying agent in aqueous laundry processes, the use of said modified polysaccharide as a rheology modifier for homecare applications and the use of said modified polysaccharide in the manufacture of a liquid laundry composition. Further aspects of the invention are a method for preparing a laundry detergent composition comprising said modified polysaccharide.
    Type: Application
    Filed: December 10, 2014
    Publication date: October 27, 2016
    Applicant: BASF SE
    Inventors: Stephan HÜFFER, Alejandra GARCIA MARCOS, Jürgen DETERING
  • Patent number: 9403731
    Abstract: The invention relates to aminocarboxylates in solid form which have a relatively high storage stability and improved processability, and to the use thereof in household products, in particular detergents, cleaners and care compositions, and in industrial processes.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: August 2, 2016
    Assignee: BASF SE
    Inventors: Frank-Peter Lang, Markus Hartmann, Alejandra Garcia Marcos, Stephan Hueffer
  • Publication number: 20160186098
    Abstract: Formulations, comprising (A) in total in the range of 1 to 50% by weight of at least one compound, selected from methylglycinediacetic acid (MGDA), glutamic acid diacetate (GLDA) and salts thereof, (B) in total in the range of 0.01 to 0.4% by weight of at least one zinc salt, stated as zinc, (C) in total in the range of 0.001 to 0.045% by weight of homo- or copolymer of ethyleneimine, and (D) optionally 0.5 to 15% by weight of bleach, based in each case on the solids content of the respective formulation.
    Type: Application
    Filed: March 28, 2014
    Publication date: June 30, 2016
    Applicant: BASF SE
    Inventors: Stephan HUEFFER, Alejandra GARCIA MARCOS, Markus HARTMANN, Heike WEBER
  • Patent number: 9328201
    Abstract: Process for the preparation of alkoxylated polyalkylenepolyamines, comprising the following steps (a) homogeneously catalyzed alcohol amination, where aliphatic amino alcohols are reacted with one another or aliphatic diamines or polyamines are reacted with aliphatic diols or polyols with the elimination of water in the presence of a homogeneous catalyst to give polyalkylenepolyamines, (b) reaction of these polyalkylenepolyamines with alkylene oxides to give alkoxylated polyalkylenepolyamines. Specific alkoxylated polyalkylenepolyamines obtainable by such processes and alkoxylated polyalkylenepolyamines and processes for their preparation. Uses of alkoxylated polyalkylenepolyamines as detergent additives, dispersants, textile auxiliaries, wood protectants, corrosion inhibitors.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: May 3, 2016
    Assignee: BASF SE
    Inventors: Sophia Ebert, Thomas Schaub, Julia Strautmann, Stephan Hueffer
  • Publication number: 20160075972
    Abstract: Formulations, their use as or for producing dishwashing detergents and their production Formulations comprising (A) at least one aminocarboxylate selected from methylglycine diacetate (MGDA), iminodisuccinic acid (IDA) and glutamic acid diacetate (GLDA), and salts and derivatives thereof, and (B) at least one alkoxylated alkyleneimine polymer with an average molecular weight Mw in the range from 500 to below 800 g/mol which has a positive charge density of at least 5 meq/g and which has in the range from 2 to at most 80% by weight alkylene oxide side chains, based on total alkoxylated alkyleneimine polymer.
    Type: Application
    Filed: October 7, 2013
    Publication date: March 17, 2016
    Applicant: BASF SE
    Inventors: Stephan HUEFFER, Alejandra GARCIA MARCOS, Markus HARTMANN, Heike WEBER, Mario EMMELUTH
  • Publication number: 20160002572
    Abstract: Use of alkoxylated polypropylenimine for laundry care and compositions therefore Use of alkoxylated polypropylenimines (A) for laundry care.
    Type: Application
    Filed: February 24, 2014
    Publication date: January 7, 2016
    Applicant: BASF SE
    Inventors: Sophia EBERT, Bjoern LUDOLPH, Christoph MUELLER, Stephan HUEFFER, Alejandra GARCIA MARCOS
  • Patent number: 9228148
    Abstract: A method of producing shaped articles made from single-sidedly or double-sidedly galvanized steel sheet, starting from galvanized steel strip, at least one of the steps of the method being a transport operation, and in which, for protection from black-spot corrosion, a corrosion preventive oil is applied which comprises at least one phosphoric acid polyoxyalkylene ester.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: January 5, 2016
    Assignee: Voestalpine Stahl GmbH
    Inventors: Stephan Hüffer, Helmut Witteler, Achim Feβenbecker, Karl-Heinz Stellnberger, Martin Fleischanderl
  • Publication number: 20150361379
    Abstract: Formulation comprising (A) at least one aminocarboxylate selected from methylglycin diacetate (MGDA), iminodisuccinic acid (IDA) and glutamic acid diacetate (GLDA), and salts thereof, (B) at least one polypropyleneimine which may be alkoxylated.
    Type: Application
    Filed: February 4, 2014
    Publication date: December 17, 2015
    Applicant: BASF SE
    Inventors: Stephan HUEFFER, Sophia EBERT, Bjoern LUDOLPH, Christoph MUELLER, Alejandra GARCIAS MARCOS
  • Publication number: 20150361381
    Abstract: The present invention is directed towards aqueous formulations comprising (A) at least one alkoxylated polypropylenimine, (B) at least one non-ionic surfactant, selected from (B1) alkyl polyglycosides and (B2) alkoxylated C8-C14-Guerbet alcohols.
    Type: Application
    Filed: February 4, 2014
    Publication date: December 17, 2015
    Applicant: BASF SE
    Inventors: Sophia EBERT, Bjoern LUDOLPH, Christoph MUELLER, Stephan HUEFFER, Alejandra GARCIA MARCOS
  • Patent number: 8945610
    Abstract: The invention relates to a condensation product obtainable by reaction of a1) at least one bicyclic or polycyclic aromatic or heteroaromatic, where the bicyclic or polycyclic aromatic or heteroaromatic is substituted by at least one carboxyl group (—COOH), and where the carboxyl group can be present in salt form, a2) at least one carbonyl compound, a3) if appropriate at least one sulfonating agent, a4) at least one urea derivative, and a5) if appropriate at least one further aromatic or heteroaromatic, or a physiologically tolerable salt thereof.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: February 3, 2015
    Assignee: BASF SE
    Inventors: Sebastien Garnier, Stephan Hüffer, Günter Scherr, Joachim Roser, Ulrich Mrowietz, Hans Wilhelm Doerr, Jindrich Cinatl, Martin Michaelis
  • Publication number: 20140369953
    Abstract: Disclosed are compositions comprising a) an antimicrobial agent, which is selected from the group consisting of biocides containing halogen atoms and/or containing phenolic moieties, formic acid, chlorine dioxide, chlorine dioxide generating compounds, dialdehydes; components containing an antimicrobial metal such as antimicrobial silver, and b) a polyamine, especially a polyethylenimine. The polyamine is effective as a booster for the antimicrobial agent.
    Type: Application
    Filed: February 19, 2013
    Publication date: December 18, 2014
    Applicant: BASF SE
    Inventors: Janina Purschwitz, Stephan Hüffer, Alejandra Garcia Marcos, Menno Hazenkamp
  • Patent number: 8877977
    Abstract: Process for the preparation of polyalkylenepolyamines by homogeneously catalyzed alcohol amination, in which aliphatic amino alcohols are reacted with one another or aliphatic diamines or polyamines are reacted with aliphatic diols or polyols with the elimination of water in the presence of a homogeneous catalyst and in the presence of hydrogen gas. Polyalkylenepolyamines obtainable by such processes and polyalkylenepolyamines comprising hydroxy groups, secondary amines or tertiary amines. Uses of such polyalkylenepolyamines as adhesion promoters for printing inks, adhesion promoters in composite films, cohesion promoters for adhesives, crosslinkers/curing agents for resins, primers for paints, wet-adhesion promoters for emulsion paints, complexing agents and flocculating agents, penetration assistants in wood preservation, corrosion inhibitors, immobilizing agents for proteins and enzymes.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: November 4, 2014
    Assignee: BASF SE
    Inventors: Julia Strautmann, Thomas Schaub, Stephan Hueffer, Steffen Maas, Rocco Paciello
  • Publication number: 20140309460
    Abstract: Process for increasing the molar mass of polyalkylenepolyamines by homogeneously catalyzed alcohol amination, which comprises carrying out a reaction of the polyalkylenepolyamines in a reactor with elimination of water in the presence of a homogeneous catalyst and removing the water of reaction from the reaction system. Polyalkylenepolyamines obtainable by such processes, and polyalkylenepolyamines comprising hydroxyl groups, secondary amines or tertiary amines. Uses of such polyalkylenepolyamines as adhesion promoters for printing inks, adhesion promoters in composite films, cohesion promoters for adhesives, crosslinkers/curing agents for resins, primers for paints, wet-adhesion promoters for emulsion paints, complexing agents and flocculating agents, penetration assistants in wood preservation, corrosion inhibitors, immobilizing agents for proteins and enzymes.
    Type: Application
    Filed: November 19, 2012
    Publication date: October 16, 2014
    Applicant: BASF SE
    Inventors: Julia Strautmann, Thomas Schaub, Stephan Hueffer, Rocco Paciello
  • Publication number: 20140305339
    Abstract: Process for the preparation of lipophilic polyalkylenepolyamines by homogeneously catalyzed alcohol amination, where aliphatic amino alcohols are reacted with one another or aliphatic diamines or polyamines are reacted with aliphatic diols or polyols with the elimination of water in the presence of a homogeneous catalyst, at least one of the reactants comprising an alkyl or alkylene group having five or more carbon atoms, and after the reaction a phase separation into at least one apolar phase and at least one polar phase being present, the lipophilic polyalkylenepolyamines being present in enriched form in the apolar phase. Polyalkylenepolyamines obtainable by such processes, and polyalkylenepolyamines comprising hydroxyl groups, secondary amines or tertiary amines.
    Type: Application
    Filed: November 19, 2012
    Publication date: October 16, 2014
    Applicant: BASF SE
    Inventors: Julia Strautmann, Thomas Schaub, Stephan Hueffer, Steffen Maas, Claudia Wood
  • Patent number: 8846593
    Abstract: The present invention relates to formulations comprising (A) at least one aminocarboxylate, selected from methylglycine diacetate (MGDA), iminodisuccinic acid (IDA) and glutaminic acid diacetate (GLDA), and salts and derivatives thereof, and (B) at least one alkyleneimine polymer which is covalently modified with at least one carboxylic acid or at least one derivative of a carboxylic acid or at least one derivative of carbonic acid, where up to at most 75 mol % of the nitrogen atoms of the primary and secondary amino groups of the alkyleneimine polymer have been reacted with carboxylic acid or derivative of carboxylic acid or carbonic acid.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: September 30, 2014
    Assignee: BASF SE
    Inventors: Stephan Hueffer, Alejandra Garcia Marcos, Markus Hartmann, Heike Weber, Mario Emmeluth
  • Publication number: 20140288265
    Abstract: Process for the preparation of alkoxylated polyalkylenepolyamines, comprising the following steps (a) homogeneously catalyzed alcohol amination, where aliphatic amino alcohols are reacted with one another or aliphatic diamines or polyamines are reacted with aliphatic diols or polyols with the elimination of water in the presence of a homogeneous catalyst to give polyalkylenepolyamines, (b) reaction of these polyalkylenepolyamines with alkylene oxides to give alkoxylated polyalkylenepolyamines. Specific alkoxylated polyalkylenepolyamines obtainable by such processes and alkoxylated polyalkylenepolyamines and processes for their preparation. Uses of alkoxylated polyalkylenepolyamines as detergent additives, dispersants, textile auxiliaries, wood protectants, corrosion inhibitors.
    Type: Application
    Filed: November 19, 2012
    Publication date: September 25, 2014
    Applicant: BASF SE
    Inventors: Sophia Ebert, Thomas Schaub, Julia Strautmann, Stephan Hueffer
  • Patent number: 8822589
    Abstract: Process for the preparation of aqueous formulations, wherein (A) at least one ethylenically unsaturated carboxylic acid, (B) at least one heterocyclic comonomer having at least one permanent cationic charge per molecule and (C-P1) at least one ethylenically unsaturated dicarboxylic acid or its anhydride are subjected to free radical copolymerization with one another in an aqueous medium and, shortly before the end or after the end of the copolymerization, further ethylenically unsaturated dicarboxylic acid (C-P2) or its anhydride is added.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: September 2, 2014
    Assignee: BASF SE
    Inventors: Markus Brym, Stephan Hueffer, Audrey Renoncourt, Ulrike Mahn, Franz Glocknitzer, Alexandra Bruhn