Patents Assigned to Merck Patent GmbH
  • Publication number: 20010046628
    Abstract: The invention relates to lithium mixed oxide particles coated with one or more layers of alkali metals and metal oxides for improving the properties of electrochemical cells.
    Type: Application
    Filed: March 26, 2001
    Publication date: November 29, 2001
    Applicant: Merck Patent GmbH
    Inventors: Ruediger Oesten, Bangyin Li, Nobuaki Nakamura, Katsuhisa Nitta
  • Patent number: 6291065
    Abstract: Described are pigment flakes having a chiral liquid crystalline polymer material, the polymer material serving as a carrier material or being coated onto a carrier material. The pigment flakes have at least one dye that is chemically bound to the polymer. Also described are methods of making such pigment flakes and using them in paints, printing inks, spray paints, cosmetic products, colored plastics, optical elements and security applications.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: September 18, 2001
    Assignee: Merck Patent GmbH
    Inventors: Eike Poetsch, Gerhard Pfaff, Matthias Kuntz, Stephan Derow, David Coates
  • Patent number: 6284032
    Abstract: Multilayer interference pigment consisting of plateletlike titanium dioxide as carrier material, coated with alternating layers of metal oxides of low and high refractive index, the difference in the refractive indices being at least 0.1, which is obtainable by solidification and hydrolysis of an aqueous solution of a thermally hydrolysable titanium compound on a continuous belt, detachment of the resulting coat, coating of the resulting titanium dioxide platelets, with or without drying in between, by a wet method with, alternately, a metal oxide hydrate of high refractive index and a metal oxide hydrate of low refractive index by hydrolysis of the corresponding, water-soluble metal compounds, separation, drying and, if desired, calcining of the material obtained.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: September 4, 2001
    Assignee: Merck Patent GmbH
    Inventors: Stephanie Andes, Gerd Bauer, Günter Brenner, Dieter Brückner, Michael Schmelz, Andrea Heyland, Matthias Kuntz, Karl Osterried, Gerhard Pfaff
  • Patent number: 6280520
    Abstract: Multilayer pearl luster pigment based on an absorbing platelet-shaped substrate which is coated with alternating layers of a material of low refractive index and a material of high refractive index, or with a metal, the difference in the refractive indices being at least 0.1.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: August 28, 2001
    Assignee: Merck Patent GmbH
    Inventors: Stephanie Andes, Dieter Brückner, Gerald Fuchs-Pohl, Matthias Kuntz, Gerhard Pfaff, Reiner Vogt
  • Patent number: 6281215
    Abstract: New 4-(1-piperazinyl)benzoic acid derivatives of the formula (I) are described. Also described is methods for making these compounds and their use as therapeutic agents. In particular, the compounds find use in the treatment of diabetes.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: August 28, 2001
    Assignee: Merck Patent GmbH
    Inventors: Gérard Moinet, Gérard Botton, Liliane Doare, Micheline Kergoat, Didier Messangeau
  • Publication number: 20010016238
    Abstract: To improve switching times, especially at low temperatures, one or more reactive liquid crystalline compounds is added to a liquid crystal mixture used in an electroptical system.
    Type: Application
    Filed: December 29, 2000
    Publication date: August 23, 2001
    Applicant: Merck Patent GmbH
    Inventors: David Coates, Owain Llyr Parri, Simon Greenfield, Martin David Tillin, Mark John Goulding, Patrick Nolan
  • Patent number: 6270563
    Abstract: The invention relates to a non-dusting homogeneous pigment composition comprising at least 50 % by weight of one or more effect pigments, 0.1-50 % by weight of plasticizer or a mixture of plasticizer/nitrocellulose, and 0-49.9 % by weight of a solvent or solvent mixture; and to its use in paints, varnishes, printing inks and plastics.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: August 7, 2001
    Assignee: Merck Patent GmbH
    Inventors: Gerhard Herget, Wolfgang Hechler, Carsten Griessmann
  • Patent number: 6262788
    Abstract: The invention relates to a process for preparing an optical retardation film comprising at least one layer of an anisotropic polymer material, to a method of rubbing a substrate for the alignment of liquid crystal or mesogenic material that can be used in the above process, to an optical retardation film obtainable by the above process, to the use of such an optical retardation film in a liquid crystal display, and to a liquid crystal display device comprising a liquid crystal cell and such an optical retardation film.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: July 17, 2001
    Assignee: Merck Patent GmbH
    Inventors: Keith Hanrahan, John Scott, Mark Goulding, Mark Andrew Verrall, David Coates, Nicolas Sharples, Jun Nakanowatari
  • Patent number: 6258804
    Abstract: Described are compound of the formula (I) defined herein which are useful, for example, in the treatment of diabetes. Also described is a method for preparing the compounds.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: July 10, 2001
    Assignee: Merck Patent GmbH
    Inventors: Daniel Ruggiero, Nicolas Wiernsperger, Gérard Patereau, Gérard Moinet
  • Patent number: 6254886
    Abstract: The invention relates to multilayer tablets which are constructed of two, three or more layers, one layer containing probiotic microorganisms, while the other layers contain foodstuff ingredients valuable in nutritional physiology, such as vitamins, minerals, etc. The tablets are distinguished by a high stability or activity over a long period with respect to the microorganisms used and are thus very well suited for keeping in storage.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: July 3, 2001
    Assignee: Merck Patent GmbH
    Inventors: Martino Fusca, Dagmar Färber
  • Patent number: 6238472
    Abstract: Colored pearl luster pigment consisting of a core of platelet shaped titanium dioxide and one or more layers of other metal oxides or metal oxide hydrates obtainable by solidifying an aqueous solution of a thermally hydrolyzable titanium compound on a continuous belt, detaching the resulting layer, coating the resulting titanium dioxide platelets, with or without drying in between, with one or more other metal oxides or metal oxide hydrates, for example Fe2O3, Fe3O4, FeOOH or Cr2O3, by a wet method, separating, drying and, if desired, calcining the material obtained.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: May 29, 2001
    Assignee: Merck Patent GmbH
    Inventors: Stephanie Andes, Gerd Bauer, Günter Brenner, Dieter Brückner, Michael Schmelz, Andrea Heyland, Matthias Kuntz, Karl Osterried, Gerhard Pfaff
  • Patent number: 6221144
    Abstract: A pale electrically conductive pigment consisting of a substrate and an electrically conductive layer formed of phosphorus- and/or fluorine-doped tin oxide. There may be an interlayer disposed between the substrate and the conductive layer.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: April 24, 2001
    Assignee: Merck Patent GmbH
    Inventors: Johann Dietz, Wilhelm Goebel, Ralf Glausch, Reiner Vogt
  • Patent number: 6217792
    Abstract: The invention relates to chiral dopants of the formula (I): R1—X1—MG1—G—MG2—X2—R2. The invention also relates to liquid crystalline materials comprising at least one chiral dopant of formula (I) and optionally at least one polymerizable mesogenic compound. The invention furthermore relates to the use of such liquid crystalline materials for the preparation of polymer films with a chiral liquid crystalline phase, for active and passive optical elements or color filters and for liquid crystal displays, for example STN, TN, AMD-TN, temperature compensation, guest-host or phase change displays, or polymer free or polymer stabilized cholesteric texture (PFCT, PSCT) displays.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: April 17, 2001
    Assignee: Merck Patent GmbH
    Inventors: Owain L Parri, Patrick Nolan, Louise D Farrand, Alison May
  • Patent number: 6217953
    Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of negative dielectric anisotropy which comprises at least one compound of the formula I1 and/or I2 and at least one compound of the formula I3 in which R11, R12, R2, R3, Z, Q, o, p, t, and u are as defined in claim 1, and the use thereof for an active matrix display based on the ECB effect.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: April 17, 2001
    Assignee: Merck Patent GmbH
    Inventors: Michael Heckmeier, Matthias Bremer, Dagmar Klement
  • Patent number: 6214917
    Abstract: The present invention relates to laser-markable plastics, in particular thermoplastic polyurethanes, which are distinguished by the fact that they contain pigments having a coating of doped tin dioxide.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: April 10, 2001
    Assignees: Merck Patent GmbH, BASF Akteingesellschaft
    Inventors: Rainer Linzmeier, Burkhard Krietsch, Frank Prissok
  • Patent number: 6207770
    Abstract: The invention relates to cholesteric polymer flakes obtainable from a chiral polymerizable mesogenic material, to methods of manufacturing such cholesteric flakes, to the use of certain chiral and achiral polymerizable compounds with one or more terminal polymerizable groups for the manufacturing of such flakes and to the use of such cholesteric flakes as effect pigments in spraying or printing inks or paints or colored plastics for different applications, especially for automotive use, cosmetic products and security applications.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: March 27, 2001
    Assignee: Merck Patent GmbH
    Inventors: David Coates, Mark Goulding, Alison May
  • Patent number: 6207098
    Abstract: The present invention relates to a process for producing inorganic porous materials, mainly composed of glass or glass-ceramic components. The glass or glass-ceramic components can have interconnected continuous macropores with a median diameter larger than 0.1 &mgr;m, and mesopores in the walls of said macropores, said mesopores having a median diameter between 2 and 100 nm. The process can include dissolving a water-soluble polymer or some other pore forming agent and a precursor for a matrix dissolving agent in a medium for mixing with a metalorganic compound.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: March 27, 2001
    Assignee: Merck Patent GmbH
    Inventors: Kazuki Nakanishi, Naohiro Soga, Tokiyo Minakuchi
  • Patent number: 6187222
    Abstract: An electroptical system which between 2 electrode layers contains a PDLC film comprising a liquid crystal mixture forming micro-droplets in an optically isotropic, transparent polymer matrix, in which one of the refractive indices of the liquid crystal mixture is matched to the refractive index of the polymer matrix, which exhibits an electrically switchable transparency essentially independent of the polarization of the incident light, the precursor of the PDLC film of which comprises one or more monomers, oligomers and/or prepolymers and a photoinitiator, and is cured photoradically, the liquid crystal mixture of which comprises one or more compounds of the formula I in which the substituents are defined herein characterized in that the liquid crystal mixture additionally contains one or more reactive liquid crystalline compounds in order to obtain improved switching times especially at low temperatures.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: February 13, 2001
    Assignee: Merck Patent GmbH
    Inventors: David Coates, Owain Llyr Parri, Simon Greenfield, Martin David Tillin, Mark John Goulding, Patrick Nolan
  • Patent number: 6187316
    Abstract: Antiviral and antifungal compositions comprising a mixture of a ferrous salt and an aqueous plant extract of pomegranate rind, Viburnum plicatum leaves or flowers, tea leaves or maple leaves are disclosed.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: February 13, 2001
    Assignee: Merck Patent GmbH
    Inventors: Sabah Abdel Amir Jassim, Stephen Paul Denyer, Gordon Sydney Anderson Birnie Stewart
  • Patent number: 6166159
    Abstract: Described are high-strength materials which are degradable and resorbable in the human and animal organisms and shaped articles manufactured therefrom, such as implants, based on cured (meth)acrylic acid esters of polyfunctionally hydroxyl-terminated oligomers of lower hydroxycarboxylic acids {polyfunctional (meth)acrylic acid esters}. The invention is characterized in that said materials and/or shaped articles have been three-dimensionally cross-linked by radiation-curing and/or any other, however boron-free, free radical-initiated polymerization of the polyfunctional (meth)acrylic acid esters and exhibit a tensile strength under standard conditions of at least 10 N/mm.sup.2.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: December 26, 2000
    Assignee: Merck Patent GmbH
    Inventor: Wolfgang Ritter