Patents by Inventor Sabine Schoen

Sabine Schoen 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).

  • Liquid crystalline medium
    Patent number: 7704566
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterised in that it comprises one or more compounds of the formula I and one or more compounds of the formula IA in which R1, R2 ring A, ring B, L1-4, Z1, Z2, X1, X2 and a are as defined in claim 1, where the proportion of the compounds of the formula I in the medium is at least 18% by weight.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: April 27, 2010
    Assignee: Merck Patent GmbH
    Inventors: Michael Heckmeier, Sabine Schoen, Peer Kirsch
  • Effect pigments
    Patent number: 7691196
    Abstract: Disclosed are yellowing-stable, silver-white effect pigments having high whiteness based on synthetic mica flakes and to the use thereof in paints, lacquers, printing inks, plastics, button pastes, ceramic materials, glasses, for coloring seed, as dopant in laser markings of plastics and papers, as additive for laser welding of plastics, as additive for coloring in the foods and pharmaceuticals sectors and in cosmetic formulations, and for the preparation of pigment compositions and dry preparations.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: April 6, 2010
    Assignee: Merck Patent GmbH
    Inventors: Gerhard Pfaff, Johann Dietz, Sabine Schoen, Doreen Warthe
  • COSMETIC FORMULATIONS WITH IR PROTECTION
    Publication number: 20100047291
    Abstract: The present invention relates to cosmetic formulations with IR protection which are distinguished by the fact that they comprise functional pigments. The invention furthermore relates to cosmetic formulations which, besides the IR pigment, comprise colorants, fillers, cosmetic active compounds and cosmetic raw materials and auxiliaries, and to the use thereof in care and decorative cosmetics.
    Type: Application
    Filed: June 21, 2006
    Publication date: February 25, 2010
    Inventors: Veronika Hochstein, Christoph Schmidt, Sabine Schoen
  • Multilayer pigments based on glass flakes
    Patent number: 7604862
    Abstract: The present invention relates to multilayer pigments based on glass flakes and to a method for the production of such pigments. The resulting pigment can be used in any application for which pearlescent pigments have been heretofore used such as, for example, in plastics, paints, inks, cosmetic formulations, coatings including solvent or waterborne automotive paint systems, powder coatings, inks and agriculture foils, for the laser-marking of papers and plastics.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: October 20, 2009
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Klaus Ambrosius, Ralf Anselmann, Sabine Schoen
  • PIGMENT MIXTURE, AND USE THEREOF IN COSMETICS, FOOD AND PHARMACEUTICALS
    Publication number: 20090246294
    Abstract: The invention relates to pigment mixtures comprising at least two components A and B. The inventive pigment mixtures are characterized in that component A is embodied as effect pigments while component B is embodied as coloring agents and fillers. Also disclosed is the use of said pigment mixtures in cosmetic formulations and for coloring food products and pharmaceutical products.
    Type: Application
    Filed: May 9, 2007
    Publication date: October 1, 2009
    Inventors: Veronika Hochstein, Christoph Schmidt, Sabine Schoen
  • FILLER PIGMENTS
    Publication number: 20090169589
    Abstract: Filler pigments based on platelet-shaped substrates, which are coated with barium sulfate and at least two metal oxides and/or metal hydroxides are highly suitable as filler pigments especially for cosmetic formulations.
    Type: Application
    Filed: December 16, 2008
    Publication date: July 2, 2009
    Inventors: Christoph Schmidt, Sabine Schoen, Tamio Noguchi
  • Pigment mixture, and the use thereof in cosmetics and in the foods and pharmaceuticals sector
    Patent number: 7485183
    Abstract: Pigment mixtures which have at least two components, where component A comprises effect pigments based on glass flakes and component B comprises flake-form, needle-shaped, spherical or crystalline colorants or fillers, and to the use thereof, in particular in cosmetic formulations and for the coloring or as a coating of products in the foods and pharmaceuticals sector are described.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: February 3, 2009
    Assignee: Merck Patent GmbH
    Inventors: Veronika Hochstein, Sabine Schoen
  • Encapsulated pigments
    Patent number: 7479323
    Abstract: Described are encapsulated pigments having an outer water-soluble shell and a core containing organic and/or inorganic pigments and optionally solvents and/or conventional additives. The encapsulated pigments have very good dissolution rates in aqueous systems and are therefore particularly suitable for paints, coatings, printing inks, in papermaking and in cosmetic formulations.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: January 20, 2009
    Assignee: Merck Patent GmbH
    Inventors: Thomas Rathschlag, Veronika Hochstein, Carsten Griessmann, Sabine Schoen
  • Liquid Crystalline Medium
    Publication number: 20080308768
    Abstract: The present invention relates to a liquid-crystalline medium based on a mixture of polar compunds having negative dielectric anisotropy (??), which is distinguished by the fact that it has a value for the ratio ?1/?n2 in the range 6-45 with a clearing point of >60° C. and a ?? of ??2.3. Media of this type are particularly suitable for electro-optical displays having active-matrix addressing based on the ECB, PA LCD, FFS or IPS effect.
    Type: Application
    Filed: July 1, 2005
    Publication date: December 18, 2008
    Inventors: Melanie Klasen-Memmer, Sabine Schoen
  • Pigment Mixture
    Publication number: 20080305184
    Abstract: The invention relates to a pigment mixture consisting of at least two constituents, constituent A being uncoated, monocoated or multicoated glass lamellae, and constituent B being nacreous pigments based on phyllosilicates, SiO2 lamellae, Fe2O3 lamellae or Al2O3 lamellae. The invention also relates to the use of said pigment mixture, inter alia, in paints, dyes, especially printing inks, plastics, powder paints, pastes and cosmetic formulations.
    Type: Application
    Filed: June 30, 2005
    Publication date: December 11, 2008
    Inventors: Dieter Heinz, Ralf Anselmann, Klaus Boehm, Sabine Schoen
  • Pigment preparation in granulate form
    Patent number: 7365109
    Abstract: The invention relates to pigment preparations in granulate form, containing one or more resins, one or more effect pigments and optionally, additives. The granulates are characterized in that they contain 3 to 10 wt. % water or a, solvent or solvent mixture with a vapor pressure of 0.001 to 40 hPa at 20° C.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: April 29, 2008
    Assignee: Merck Patent GmbH
    Inventors: Thomas Rathschlag, Sabine Schoen
  • Effect pigments
    Publication number: 20080047470
    Abstract: Disclosed are yellowing-stable, silver-white effect pigments having high whiteness based on synthetic mica flakes and to the use thereof in paints, lacquers, printing inks, plastics, button pastes, ceramic materials, glasses, for coloring seed, as dopant in laser markings of plastics and papers, as additive for laser welding of plastics, as additive for coloring in the foods and pharmaceuticals sectors and in cosmetic formulations, and for the preparation of pigment compositions and dry preparations.
    Type: Application
    Filed: June 7, 2007
    Publication date: February 28, 2008
    Inventors: Gerhard Pfaff, Johann Dietz, Sabine Schoen, Doreen Warthe
  • Liquid-crystal medium and electro-optical display containing same
    Patent number: 7314653
    Abstract: Disclosed are nematic liquid-crystal media which have an initial current density of 0.05 ?A/cm2 or less and a threshold voltage of 1.0 V or less and their use in liquid-crystal displays, preferably TN or STN displays.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: January 1, 2008
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Harald Hirschmann, Sabine Schoen
  • Liquid-crystalline medium
    Patent number: 7175891
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula I and one or more compounds of the formula IA in which R1, R2, ring A, ring B, L1-4, Z1, Z2, X1 and X2 are as defined in claim 1.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: February 13, 2007
    Assignee: Merck Patent GmbH
    Inventors: Michael Heckmeier, Sabine Schoen, Peer Kirsch
  • Liquid crystalline medium and liquid crystal display
    Patent number: 7153550
    Abstract: The instant invention relates to liquid crystalline media comprising a dielectrically positive component, component A, consisting of dielectrically positive compounds, comprising one or more compounds of formula I and one or more compounds of formula II wherein the parameters have the meaning given in the specification and to liquid crystal displays comprising these media, especially to active matrix displays.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: December 26, 2006
    Assignee: Merck Patent Gesellschaft
    Inventors: Michael Heckmeier, Sabine Schoen, Peer Kirsch, Matthias Bremer, Volker Reiffenrath
  • Liquid crystalline medium
    Publication number: 20060204674
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterised in that it comprises one or more compounds of the formula I and one or more compounds of the formula IA in which R1, R2 ring A, ring B, L1-4, Z1, Z2, X1, X2 and a are as defined in claim 1, where the proportion of the compounds of the formula I in the medium is at least 18% by weight.
    Type: Application
    Filed: August 2, 2004
    Publication date: September 14, 2006
    Inventors: Michael Heckmeier, Sabine Schoen, Peer Kirsch
  • Liquid-crystalline medium
    Patent number: 7105210
    Abstract: A liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, which contains one or more compounds of the formula I and one or more compounds of the formula IA in which R1, R2, ring A, L1-8, Z1, X1 and X2 are as defined in claim 1.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: September 12, 2006
    Assignee: Merck Patent GmbH
    Inventors: Michael Heckmeier, Brigitte Schuler, Izumi Saito, Sabine Schoen, Peer Kirsch
  • Liquid-crystalline medium
    Patent number: 7078079
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterised in that it comprises one or more compounds of the general formula I in which R1, L1, L2, L3, L4, L5, L6, Z1, Z2, X, v and u are as defined in claim 1.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: July 18, 2006
    Assignee: Merck Patent GmbH
    Inventors: Michael Heckmeier, Brigitte Schuler, Achim Goetz, Peer Kirsch, Detlef Pauluth, Matthias Bremer, Sabine Schoen, Georg Lüssem, Christian Hock
  • Liquid-crystalline medium
    Patent number: 7056561
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterised in that it comprises one or more ester compounds of the formula I and one or more compounds of the formula IA in which R1, R2, ring A, ring B, L1-6, Z1, Z2, X1 and X2 are as defined in claim 1.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: June 6, 2006
    Assignee: Merck Patent GmbH
    Inventors: Michael Heckmeier, Sabine Schoen, Peer Kirsch, Brigitte Schuler, Izumi Saito
  • Liquid crystal mixtures
    Patent number: 7048974
    Abstract: The invention relates to TN and STN liquid-crystal displays and to the nematic liquid-crystal mixtures used therein, characterised in that they comprise one or more compounds of the formula I and one or more compounds of the formula II in which ring A, R1, R2 and Y are as defined in Claim 1.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: May 23, 2006
    Assignee: Merck Patentgesellschaft Mit Beschrankter Haftung
    Inventors: Antje Mühlfeld, Michael Junge, Harald Hirschmann, Sabine Schoen, Juliane Suermann, Ursula Patwal, Dagmar Zimmermann