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).

  • Patent number: 11180659
    Abstract: A blended composition containing uncoated Al2O3 flakes having a thickness of ?500 nm and a D50-value of 15-30 ?m and a D90-value of 30-45 ?m, and/or coated Al2O3 flakes having a thickness of ?500 nm and a D50-value of 15-30 ?m and a D90-value of 30-45 ?m, which have been coated with at least one layer of a metal oxide, mixtures of at least two metal oxides, metal, metal sulphide, titanium suboxide, titanium oxynitride, FeO(OH), metal alloys and/or rare earth compounds, and their use in various formulations.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: November 23, 2021
    Assignee: Merck Patent GmbH
    Inventors: Ryuta Suzuki, Gerhard Pfaff, Sabine Schoen, Fumiko Sasaki, Satoru Kobayashi, Koshiro Kunii, Yuji Takenaka, Katsuhisa Nitta
  • Publication number: 20210322285
    Abstract: The present invention relates to a pigment mixture based on spherical particles having a defined particle-size distribution, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, in cosmetic formulations, as tracer, as filler and for the preparation of pigment preparations and dry preparations.
    Type: Application
    Filed: June 28, 2021
    Publication date: October 21, 2021
    Applicant: Merck Patent GmbH
    Inventors: Sylke KLEIN, Lilia HEIDER, Carsten LORENZ, Sabine SCHOEN
  • Patent number: 11142649
    Abstract: The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments. and organic dyes.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: October 12, 2021
    Assignee: Merck Patent GmbH
    Inventors: Ryuta Suzuki, Gerhard Pfaff, Sabine Schoen, Fumiko Sasaki, Satoru Kobayashi, Koshiro Kunii, Yuji Takenaka, Katsuhisa Nitta
  • Publication number: 20210087469
    Abstract: The invention relates to a liquid-crystalline medium comprising at least one compound of the formula I, in which R1 has the meanings indicated in Claim 1, and to the use thereof in liquid-crystalline media and in electro-optical liquid-crystal displays.
    Type: Application
    Filed: December 4, 2020
    Publication date: March 25, 2021
    Inventors: Mark GOEBEL, Harald HIRSCHMANN, Lars LIETZAU, Volker REIFFENRATH, Sabine SCHOEN, Brigitte SCHULER
  • Patent number: 10822497
    Abstract: The present invention relates to interference pigments based on transparent, low-refractive-index, flake-form substrates which have a high-refractive-index coating consisting of TiO2 having a layer thickness of 20-200 nm and optionally an outer protective layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, button pastes, ceramic materials, glasses, for seed coloring, as dopants in the laser marking of plastics and papers, as additive for the 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: March 31, 2016
    Date of Patent: November 3, 2020
    Assignee: Merck Patent GmbH
    Inventors: Christoph Schmidt, Tanja Delp, Sabine Schoen
  • Publication number: 20200339820
    Abstract: The present invention relates to effect pigments which are based on flake-form substrates having a circular form factor of 1.2-2 and are coated with at least one high-refractive-index layer, and to the use thereof, inter alia in paints, coatings, printing inks, plastics and in cosmetic formulations.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 29, 2020
    Applicant: MERCK PATENT GMBH
    Inventors: Gerhard PFAFF, Stephanie ANDES, Klaus AMBROSIUS, Ralf PETRY, Michael ROESLER, Sabine SCHOEN
  • Publication number: 20200231828
    Abstract: The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings, printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments.
    Type: Application
    Filed: April 8, 2020
    Publication date: July 23, 2020
    Applicant: Merck Patent GmbH
    Inventors: Ryuta SUZUKI, Gerhard PFAFF, Sabine SCHOEN, Noriyuki MATSUDA, Katsuhisa NITTA
  • Publication number: 20200231827
    Abstract: The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings, printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments.
    Type: Application
    Filed: April 8, 2020
    Publication date: July 23, 2020
    Applicant: Merck Patent GmbH
    Inventors: Ryuta SUZUKI, Gerhard PFAFF, Sabine SCHOEN, Noriyuki MATSUDA, Katsuhisa NITTA
  • Patent number: 10647861
    Abstract: Alpha-Alumina flakes having a particle thickness of 130-400 nm, a D50-value of 15-30 ?m, a D90-value of 30-45 ?m and a D10-value of <9.5 ?m. Use of the alumina flakes in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations. Also, use of the alumina flakes as a substrate for effect pigments and in organic dyes.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: May 12, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Ryuta Suzuki, Gerhard Pfaff, Sabine Schoen, Noriyuki Matsuda, Katsuhisa Nitta
  • Publication number: 20200123388
    Abstract: Effect pigments based on Al2O3 flakes with high weather resistance and less photoactivity and to their use thereof in paints, industrial coatings, automotive coatings, printing inks, cosmetic formulations. The effect pigments have a ratio of the amount by weight of Al2O3 of the Al2O3 flake and the amount by weight of the metal oxide(s) of the coating layer(s) in the range of from 27:73 to 83:17 based on the total weight of the effect pigment.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Applicant: Merck Patent GmbH
    Inventors: Sabine SCHOEN, Michael JUNGNITZ, Stefan SCHLUETER, Kirsten FRITSCHE, Carsten PLUEG, Stephanie ANDES, Ulrich SCHOENEFELD
  • Patent number: 10611963
    Abstract: The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds 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: Grant
    Filed: August 15, 2017
    Date of Patent: April 7, 2020
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Sabine Schoen
  • Patent number: 10533135
    Abstract: The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds 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: Grant
    Filed: August 16, 2013
    Date of Patent: January 14, 2020
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Melanie Klassen-Memmer, Sabine Schoen
  • Publication number: 20190390112
    Abstract: A liquid-crystalline medium and the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PM-VA, SS-VA, PALC, IPS, PS-IPS, FFS or PS-FFS effect.
    Type: Application
    Filed: June 20, 2019
    Publication date: December 26, 2019
    Applicant: Merck Patent GmbH
    Inventors: Harald HIRSCHMANN, Sabine SCHOEN
  • Publication number: 20190345389
    Abstract: Liquid-crystalline medium contains at least one compound of formula I, and at least one compound formulae ST-1 to ST-17 and the use thereof for an active-matrix display, in particular based on the VA, PSA, PA-VA, SS-VA, SA-VA, PS-VA, PALC, IPS, PS-IPS, UB-FFS, U-IPS, FFS or PS-FFS effect.
    Type: Application
    Filed: July 22, 2019
    Publication date: November 14, 2019
    Applicant: MERCK PATENT GMBH
    Inventors: Harald HIRSCHMANN, Sabine SCHOEN
  • Publication number: 20190330475
    Abstract: The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments. and organic dyes.
    Type: Application
    Filed: July 2, 2019
    Publication date: October 31, 2019
    Applicant: Merck Patent GmbH
    Inventors: Ryuta SUZUKI, Gerhard PFAFF, Sabine SCHOEN, Fumiko SASAKI, Satoru KOBAYASHI, Koshiro KUNII, Yuji TAKENAKA, Katsuhisa NITTA
  • Patent number: 10457812
    Abstract: Alpha-Alumina flakes having a particle thickness of 550-1000 nm, a D50-value of 15-30 ?m, a D90-value of 30-45 ?m and a D10-value of ?9.0 ?m. Use of the alumina flakes in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations. Also, use of the alumina flakes as a substrate for effect pigments and in organic dyes.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: October 29, 2019
    Assignee: Merck Patent GmbH
    Inventors: Ryuta Suzuki, Gerhard Pfaff, Sabine Schoen, Fumiko Sasaki, Satoru Kobayashi, Koshiro Kunii, Yuji Takenaka, Katsuhisa Nitta
  • Publication number: 20190322871
    Abstract: The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments. and organic dyes.
    Type: Application
    Filed: July 2, 2019
    Publication date: October 24, 2019
    Applicant: Merck Patent GmbH
    Inventors: Ryuta SUZUKI, Gerhard PFAFF, Sabine SCHOEN, Fumiko SASAKI, Satoru KOBAYASHI, Koshiro KUNII, Yuji TAKENAKA, Katsuhisa NITTA
  • Patent number: 10435626
    Abstract: The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds 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: Grant
    Filed: May 30, 2017
    Date of Patent: October 8, 2019
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Sabine Schoen
  • Patent number: 10400169
    Abstract: The invention relates to a liquid-crystalline medium which comprises at least one compound of the formula I, in which R1, R1*, Z1, Z2 and L1-3 have the meanings defined herein, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, PS-FFS, PS-IPS or IPS effect.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 3, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Harald Hirschmann, Monika Bauer, Martina Windhorst, Marcus Reuter, Constanze Brocke, Rocco Fortte, Matthias Bremer, Sabine Schoen
  • Publication number: 20190225813
    Abstract: A pigment mixture comprising at least two or three interference pigments of different interference colours selected from the colours red, green and blue, suitable for use in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses and in the preparation of pigment preparations, dry preparations and in particular cosmetic formulations.
    Type: Application
    Filed: January 23, 2019
    Publication date: July 25, 2019
    Applicant: MERCK PATENT GMBH
    Inventors: Christoph SCHMIDT, Carsten PLUEG, Uwe LENZ, Sabine SCHOEN