Patents by Inventor Norbert Mronga

Norbert Mronga 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: 20110000826
    Abstract: In a device and a method for extracting non-magnetic ores from a pulp comprising non-magnetic ore particles and having a solid fraction of at least 30 mass percent, the pulp flows continuously through a reactor in the direction of flow and magnetic or magnetizable magnet particles that form ore magnetic particle agglomerations with the non-magnetic ore particles are added to said pulp. The ore magnetic particle agglomerations are moved by a magnetic field into an accumulation range of the reactor, and are then discharged out of reactor range and separated into ore and magnetic particles. In a device and a method, the separated magnetic particles are treated, in particular hydrophobized, such that during a new interaction with non-magnetic ore particles, new ore magnetic particle agglomerations are formed. Accordingly, a high yield of ores can be obtained and the mine can be operated in an economical and environmentally friendly manner.
    Type: Application
    Filed: February 10, 2009
    Publication date: January 6, 2011
    Inventors: Michael Diez, Imme Domke, Werner Hartmann, Hartmut Hibst, Wolfgang Krieglstein, Alexej Michailovski, Norbert Mronga, Michael Riebensahm, Wolfgang Schmidt, Thomas Servay
  • Publication number: 20100307982
    Abstract: The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises the steps: (A) production of a suspension of the mixture comprising at least one first material and at least one second material and at least one magnetic particle in a suitable suspension medium, (B) setting of the pH of the suspension obtained in step (A) to a value at which the at least one first material and the at least one magnetic particle bear opposite surface charges so that these agglomerate, (C) separation of the agglomerate obtained in step (B) from the suspension by application of a magnetic field and (D) dissociation of the agglomerate separated off in step (C) by setting of the pH to a value at which the at least one first material and the at least one magnetic particle bear the same surface charges in order to obtain the at least one first material.
    Type: Application
    Filed: November 17, 2008
    Publication date: December 9, 2010
    Applicant: BASF SE
    Inventors: Imme Domke, Alexej Michailovski, Norbert Mronga, Hartmut Hibst
  • Publication number: 20100300941
    Abstract: The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises the following steps: (A) contacting of the mixture comprising at least one first material and at least one second material with at least one surface-active substance, if appropriate in the presence of at least one dispersant, resulting in the surface-active substance becoming attached to the at least one first material, (B) if appropriate, addition of at least one dispersant to the mixture obtained in step (A) to give a dispersion having a suitable concentration, (C) treatment of the dispersion from step (A) or (B) with at least one hydrophobic magnetic particle so that the at least one first material to which the at least one surface-active substance is bound and the at least one magnetic particle become attached to one another, (D) separation of the addition product from step (C) from the mixture by application of
    Type: Application
    Filed: September 1, 2008
    Publication date: December 2, 2010
    Inventors: Imme Domke, Norbert Mronga, Alexej Michailovski, Hartmut Hibst, Thomas Servay, Rainer Klopsch
  • Patent number: 7837781
    Abstract: A pigment of empirical composition (TiO2)a(ZnO)b(SnO)c(SnO2)d(RExOy)e(AEO)f(MuOv)g wherein RE is a metal from transition group 3 or a rare earth metal, AE is an alkaline earth metal, and M is any other metal, where a=0.8-3; b=0.5-1.3; c=0.5-1.3; d=0-0.5; e=0-0.3; f=0-0.3; and g=0-0.1, and e+f?0.01. Preferably RE is selected from the elements Y, La, Ce, and Pr. The pigments are used as colorants for coloring paints, inks, plastics, and rubber.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: November 23, 2010
    Assignee: BASF SE
    Inventors: Norbert Mronga, Kirill Bramnik
  • Publication number: 20100050903
    Abstract: A pigment of empirical composition (TiO2)a(ZnO)b(SnO)c(SnO2)d(RExOy)e(AEO)f(MuOv)g wherein RE is a metal from transition group 3 or a rare earth metal, AE is an alkaline earth metal, and M is any other metal, where a=0.8-3; b=0.5-1.3; c=0.5-1.3; d=0-0.5; e=0-0.3; f=0-0.3; and g=0-0.1, and e+f?0.01. Preferably RE is selected from the elements Y, La, Ce, and Pr. The pigments are used as colorants for coloring paints, inks, plastics, and rubber.
    Type: Application
    Filed: December 17, 2007
    Publication date: March 4, 2010
    Applicant: BASF SE
    Inventors: Norbert Mronga, Kirill Bramnik
  • Patent number: 7449239
    Abstract: Use of luster pigments based on a platelet-shaped metallic substrate coated with a low refractive dielectric layer which does not absorb visible light, for pigmenting macromolecular materials.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: November 11, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Oliver Seeger, Norbert Mronga, Gunter Etzrodt, Arno Bohm
  • Publication number: 20080249224
    Abstract: Use of luster pigments based on a platelet-shaped metallic substrate coated with a low refractive dielectric layer which does not absorb visible light, for pigmenting macromolecular materials.
    Type: Application
    Filed: June 17, 2008
    Publication date: October 9, 2008
    Applicant: BASF Akiengesellschaft
    Inventors: Oliver SEEGER, Norbert Mronga, Gunter Etzrodt, Arno Bohm
  • Patent number: 7387669
    Abstract: Luster pigments having pronounced sparkle which are based on aluminum platelets which have been coated with iron oxide and have in the precoated state an average platelet size from 8 to 30 ?m, an average platelet thickness from 300 to 600 nm and an aspect ratio from 15 to 70.
    Type: Grant
    Filed: October 23, 2004
    Date of Patent: June 17, 2008
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Mronga, Raimund Schmid, Oliver Seeger
  • Publication number: 20080127860
    Abstract: The use of bismuth vanadate pigments containing ?1.4% by weight of aluminum for coloring powder coating materials.
    Type: Application
    Filed: January 23, 2006
    Publication date: June 5, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Kirill Bramnik, Eckhard Korona, Norbert Mronga
  • Patent number: 7300510
    Abstract: Goniochromatic luster pigments comprising at least one dielectric low-refractive interference-colored layer which includes a polar organic solvent which can interact with the layer material via functional groups.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: November 27, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Oliver Seeger, Norbert Mronga, Rainer Henning, Raimund Schmid
  • Publication number: 20070034112
    Abstract: Luster pigments having pronounced sparkle which are based on aluminum platelets which have been coated with iron oxide and have in the precoated state an average platelet size from 8 to 30 ?m, an average platelet thickness from 300 to 600 nm and an aspect ratio from 15 to 70.
    Type: Application
    Filed: October 23, 2004
    Publication date: February 15, 2007
    Applicant: DASF Aktiengesellschaft
    Inventors: Norbert Mronga, Raimund Schmid, Oliver Seeger
  • Publication number: 20070026224
    Abstract: Use of luster pigments based on a platelet-shaped metallic substrate coated with a low refractive dielectric layer which does not absorb visible light, for pigmenting macromolecular materials.
    Type: Application
    Filed: April 14, 2004
    Publication date: February 1, 2007
    Applicant: BASF Akiengesellschaft
    Inventors: Oliver Seeger, Norbert Mronga, Gunter Etzrodt, Arno Bohm
  • Publication number: 20050223940
    Abstract: Goniochromatic luster pigments comprising at least one dielectric low-refractive interference-colored layer which includes a polar organic solvent which can interact with the layer material via functional groups.
    Type: Application
    Filed: May 8, 2003
    Publication date: October 13, 2005
    Inventors: Oliver Seeger, Norbert Mronga, Rainer Henning, Raimund Schmid
  • Patent number: 6620233
    Abstract: Goniochromatic luster pigments are based on titanium dioxide-coated silicatic platelets which have been heated in a reducing atmosphere and which comprise at least one layer packet comprising A) a colorless coating having a refractive index n≦1.8 and B) a coating which has a refractive index n≧2.0, which includes iron(III) oxide and which selectively absorbs visible light.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: September 16, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Oliver Seeger, Raimund Schmid, Norbert Mronga, Jörg Adel
  • Patent number: 6533857
    Abstract: Luster pigments based on multiply coated reflecting platelet-shaped substrates and comprising at least one layer packet comprising A) a low refractive coating which selectively absorbs visible light and B) a reflective coating which is at least partially transparent to visible light and also, if desired, C) an outer protective layer.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: March 18, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Raimund Schmid, Arno Böhm, Oliver Seeger, Norbert Mronga, Thorsten Clemens
  • Patent number: 6423131
    Abstract: Bismuth vanadate pigments comprising at least one coating containing calcium fluoride, bismuth oxyfluoride or a lanthanide fluoride or oxyfluoride or a mixture thereof are useful for coloring paints, printing inks and plastics.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: July 23, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Oliver Seeger, Hansulrich Reisacher, Norbert Mronga, Reinhard Zickgraf
  • Publication number: 20020056402
    Abstract: Bismuth vanadate pigments comprising at least one coating containing calcium fluoride, bismuth oxyfluoride or a lanthanide fluoride or oxyfluoride or a mixture thereof are useful for coloring paints, printing inks and plastics.
    Type: Application
    Filed: September 2, 1999
    Publication date: May 16, 2002
    Inventors: OLIVER SEEGER, HANSULRICH REISACHER, NORBERT MRONGA, REINHARD ZICKGRAF
  • Patent number: 6335390
    Abstract: Aqueous coating compositions comprise a water-soluble or water-dispersible film-forming polymer, a metallic pigment based on coated metal flakes, an organic nitro compound which is further carboxyl-, carbonyl- and/or hydroxyl-functionalized, and an organic solvent in which the nitro compound is soluble, along with further components customary for aqueous coating compositions.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: January 1, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Oliver Seeger, Norbert Mronga
  • Patent number: 6193794
    Abstract: The iron oxide platelets comprise at least one layer packet comprising A) a colorless coating having a refractive index n≦1.8, and B) a colorless coating having a refractive index n≧2.0.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: February 27, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Raimund Schmid, Oliver Seeger, Norbert Mronga
  • Patent number: 6139614
    Abstract: Goniochromatic luster pigments are based on titanium dioxide-coated silicatic platelets which have been heated in a reducing atmosphere and which comprise at least one layer packet comprisingA) a colorless coating having a refractive index n.ltoreq.1.8 andB) a colorless coating having a refractive index n.gtoreq.2.0.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: October 31, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Raimund Schmid, Oliver Seeger, Norbert Mronga