Patents by Inventor Christian Lach

Christian Lach 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: 7632883
    Abstract: An aqueous synthetic resin formulation essentially comprising a synthetic resin A, a metallic cation with a charge number of from 2 to 4, dispersants, water, and finely divided fillers, and also, if desired, acetophenone derivatives or benzophenone derivatives, the resin A being prepared by free-radically initiated aqueous emulsion polymerization of monomers in the presence of from 0.01 to 3 parts by weight of an alien polymer seed per 100 parts by weight of the monomer mixture.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: December 15, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Lach, Michael Melan
  • Patent number: 7049001
    Abstract: Compounds with carbodiimide units and carboxyl or carboxylate groups (compounds V), derived from a) aliphatic or araliphatic C4 to C20 polyisocyanates (component a) b) hydroxy carboxylic acids or hydroxy carboxylic salts (component b) and c) if desired, further compounds, carrying groups able to react with isocyanate groups in an addition reaction (component c) d) if desired, other isocyanates (component d), the carbodiimide units being derived essentially exclusively from the isocyanate groups of component a).
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: May 23, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Häberle, Ulrike Licht, Sabine Kielhorn-Bayer, Christian Lach, Bernd Meyer-Roscher, Robert Shane Porzio, Christelle Staller, Peter Weyland
  • Publication number: 20050014889
    Abstract: An aqueous synthetic resin formulation essentially comprising a synthetic resin A, a metallic cation with a charge number of from 2 to 4, dispersants, water, and finely divided fillers, and also, if desired, acetophenone derivatives or benzophenone derivatives, the resin A being prepared by free-radically initiated aqueous emulsion polymerization of monomers in the presence of from 0.01 to 3 parts by weight of an alien polymer seed per 100 parts by weight of the monomer mixture.
    Type: Application
    Filed: October 29, 2002
    Publication date: January 20, 2005
    Inventors: Christian Lach, Michael Melan
  • Patent number: 6783807
    Abstract: The surfaces of apparatuses and apparatus parts for chemical plant construction, including, for example, apparatus, container and reactor walls, discharge apparatuses, fittings, pumps, filters, compressors, centrifuges, columns, heat exchangers, dryers, comminuting machines, internals, packings and mixing elements, are coated by a process wherein protuberances having a mean height of from 100 nm to 50 &mgr;m with a mean spacing of from 100 nm to 100 &mgr;m are produced on the surface to be coated and the coating is applied thereon by currentless deposition of a metal layer or of a metal-polymer dispersion layer with the aid of a plating bath which contains a metal electrolyte, a reducing agent and optionally a polymer or polymer blend to be deposited, in dispersed form.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: August 31, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Stephan Hüffer, Thilo Krebs, Klaus-Dieter Hungenberg, Ingolf Kühn, Ekkehard Jahns, Christian Lach, Harald Keller, Andreas Pfau, Thomas Frechen, Bernd Diebold, Peter Dillmann
  • Publication number: 20040157043
    Abstract: A process for coating surfaces in apparatuses or apparatus parts for plant construction, preferably for chemical plant construction, involves optionally first hydrophobicizing a polymer film having a microstructure and optionally additionally macrostructured surface and then fixing it on the apparatus or apparatus part to be coated, and also apparatuses and apparatus parts thus coated.
    Type: Application
    Filed: February 12, 2003
    Publication date: August 12, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Harald Keller, Ekkehard Jahns, Christian Lach, Stephan Huffer, Thilo Krebs, Yi Thomann, Thomas Frechen
  • Patent number: 6730807
    Abstract: Compounds containing carbodiimide units and carboxyl or carboxylate groups (compounds V), derived from a) aliphatic or araliphatic C4 to C20 polyisocyanates (component a) b) amino carboxylic acids or amino carboxylic salts (component b) and c) if desired, further compounds which carry groups able to react with isocyanate groups in an addition reaction (component c) d) if desired, other isocyanates (component d), the carbodiimide units deriving essentially exclusively from the isocyanate groups of component (a).
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: May 4, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Häberle, Reinhard Treiber, Christian Lach, Ulrike Licht, Bernd Meyer-Roscher, Peter Weyland
  • Publication number: 20040047997
    Abstract: Surfaces are provided with a dirt-repellent treatment by a process in which the surfaces are coated with particles which have a mean diameter of from 3 nm to 5 &mgr;m and consist of a material which has a surface energy of at least 20 mN/m.
    Type: Application
    Filed: June 25, 2003
    Publication date: March 11, 2004
    Inventors: Harald Keller, Ekkehard Jahns, Christian Lach, Stephan Huffer, Elmar Stockelmann, Yi Thomann, Thomas Frechen
  • Patent number: 6683126
    Abstract: The present invention provides a coating composition for producing difficult-to-wet surfaces, comprising i) at least one finely divided powder whose particles have a hydrophobic surface and a porous structure characterized by a BET surface area (determined in accordance with DIN 66131) of at least 1 m2/g, and ii) at least one film-forming binder characterized by a surface tension <50 mN/m, the weight ratio of powder to binder being at least 1:4. It also provides a process for producing difficult-to-wet surfaces, and provides for the use of the coating compositions for producing surfaces having a self-cleaning effect and for reducing the flow resistance for liquids in pipes.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: January 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Harald Keller, Ingolf Kühn, Ekkehard Jahns, Christian Lach, Stephan Hüffer, Thilo Krebs, Yi Thomann, Thomas Frechen
  • Publication number: 20040014865
    Abstract: The invention relates to a composition comprising at least one hydrophylic, inorganic powder (P) having an average particle size of between 15 and 500 &mgr;m, and at least one hydrophobic, thermoplastic substance (T) which is characterised by a surface tension of between 20 and 50 mN/m. The weight ratio of the hydrophylic, inorganic powder to the hydrophobic, thermoplastic substance P:T is between 50:1 and 1:2.
    Type: Application
    Filed: April 14, 2003
    Publication date: January 22, 2004
    Inventors: Harald Keller, Ekkehard Jahns, Christian Lach, Stephen Huffer, Thilo Krebs, Yi Thomann, Thomas Frechen
  • Publication number: 20030104215
    Abstract: An aqueous dispersion of a polymer synthesized from free-radical polymerizable compounds (monomers), wherein the dispersed polymer particles comprise compounds containing carbodiimide groups (carbodiimides for short) and the carbodiimides are not attached to the polymer by free-radical copolymerization.
    Type: Application
    Filed: June 17, 2002
    Publication date: June 5, 2003
    Inventors: Ulrike Licht, Karl Haberle, Christian Lach, Sabine Kielhorn-Bayer, Karl-Heinz Schumacher
  • Publication number: 20030088030
    Abstract: Compounds with carbodiimide units and carboxyl or carboxylate groups (compounds V), derived from
    Type: Application
    Filed: July 5, 2002
    Publication date: May 8, 2003
    Inventors: Karl Haberle, Ulrike Licht, Sabine Kielhorn-Bayer, Christian Lach, Bernd Meyer-Roscher, Robert Shane Porzio, Christelle Staller, Peter Weyland
  • Publication number: 20030054114
    Abstract: The surfaces of apparatuses and apparatus parts for chemical plant construction, including, for example, apparatus, container and reactor walls, discharge apparatuses, fittings, pumps, filters, compressors, centrifuges, columns, heat exchangers, dryers, comminuting machines, internals, packings and mixing elements, are coated by a process wherein protuberances having a mean height of from 100 nm to 50 &mgr;m with a mean spacing of from 100 nm to 100 &mgr;m are produced on the surface to be coated and the coating is applied thereon by currentless deposition of a metal layer or of a metal-polymer dispersion layer with the aid of a plating bath which contains a metal electrolyte, a reducing agent and optionally a polymer or polymer blend to be deposited, in dispersed form.
    Type: Application
    Filed: September 26, 2002
    Publication date: March 20, 2003
    Inventors: Stephan Huffer, Thilo Krebs, Klaus-Dieter Hungenberg, Ingolf Kuhn, Ekkehard Jahns, Christian Lach, Harald Keller, Andreas Pfau, Thomas Frechen
  • Publication number: 20020061940
    Abstract: Described is a water-based, pigmented coating composition essentially free from volatile organic compounds and comprising
    Type: Application
    Filed: October 9, 2001
    Publication date: May 23, 2002
    Inventors: Christian Lach, Roland Baumstark
  • Publication number: 20020059974
    Abstract: A process for coating surfaces in apparatuses or apparatus parts for plant construction, preferably for chemical plant construction, involves optionally first hydrophobicizing a polymer film having a microstructured and optionally additionally macrostructured surface and then fixing it on the apparatus or apparatus part to be coated, and also apparatuses and apparatus parts thus coated.
    Type: Application
    Filed: October 25, 2001
    Publication date: May 23, 2002
    Applicant: BASF Aktiengesellschaft
    Inventors: Harald Keller, Ekkehard Jahns, Christian Lach, Stephan Hueffer, Thilo Krebs, Yi Thomann, Thomas Frechen
  • Publication number: 20020016433
    Abstract: The present invention provides a coating composition for producing difficult-to-wet surfaces, comprising
    Type: Application
    Filed: April 25, 2001
    Publication date: February 7, 2002
    Inventors: Harald Keller, Ingolf Kuhn, Ekkehard Jahns, Christian Lach, Stephan Huffer, Thilo Krebs, Yi Thomann, Thomas Frechen