Patents Assigned to Ferro Corporation
  • Patent number: 11634358
    Abstract: A curable glass coating composition including 5-70 wt % aliphatic polycarbonate diol, 5-60 wt % crosslinker, 1-20 wt % extender, 4-20 wt % fatty alcohol, and 2-30 wt % crystalline or amorphous powder filler material, and optionally 2-20 wt % aliphatic polyester polyol and 2-20 wt % cycloaliphatic epoxy. The coating composition can be applied to a glass substrate and cured to form a decorative cured polyurethane coating layer on the substrate that has improved caustic and UV resistance.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: April 25, 2023
    Assignee: Ferro Corporation
    Inventors: Thirumalai Duraisamy, Kameron Gale, Cindy Pankiewicz, George E. Sakoske
  • Patent number: 11367812
    Abstract: A phosphor in glass (PiG) cover is provided to modulate the color emitted from an LED chip. The PiG cover includes an active layer including glass and phosphor, and a secondary layer including glass and free of phosphor. The active layer is stacked on the secondary layer to form the PiG cover. Alternately the PiG includes an active layer sandwiched between two secondary layers. Two or more active layers can be stacked to each other or disposed side-by-side. An LED chip is arranged under the PiG cover to form an LED package.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: June 21, 2022
    Assignee: Ferro Corporation
    Inventors: Cody J. Gleason, Srinivasan Sridharan, George E. Sakoske, Ellen S. Tomey, Chao Ma, Jackie D. Davis, Yi Yang, Stanley Wang
  • Patent number: 11225433
    Abstract: A sintered machinable glass-ceramic is provided. The machinable glass-ceramic is formed by mixing phyllosilicate material having a sheet structure, with a glass fit and firing the mixture at relatively low temperatures to sinter the phyllosilicate, while maintaining the sheet-like morphology of the phyllosilicate and its associated cleaving properties. The sintered machinable glass-ceramic can be machined with conventional metal working tools and includes the electrical properties of the phyllosilicate. Producing the sintered machinable glass-ceramic does not require the relatively high-temperature bulk nucleation and crystallization needed to form sheet phyllosilicate phases in situ.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: January 18, 2022
    Assignee: Ferro Corporation
    Inventors: Srinivasan Sridharan, George E. Sakoske, John J. Maloney, Cody Gleason, Gregory R. Prinzbach, Bradford Smith, Chih Cheng Wang
  • Patent number: 11225432
    Abstract: The present invention relates to the field of forehearth frits, pearls, and/or concentrates for use in glass compositions. In particular, the present invention provides a system of forehearth frits, pearls, and/or concentrates that is capable of parting a fluorescent effect to a glass composition by adding a fluorescent glass fit, pearl or concentrate in the forehearth of a glass furnace, to form fluorescent glass and a method of using the fluorescent system of forehearth frits, pearls, and/or concentrates.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: January 18, 2022
    Assignee: Ferro Corporation
    Inventors: Yasin Musa Mehmet Duman, Stéphane François Yves Bodin, Benoit Darbouret
  • Patent number: 11193044
    Abstract: An acidic slurry composition for use in chemical-mechanical polishing including an acid pH adjuster and a cationic polishing suppressant comprising a quaternized aromatic heterocycle. The quaternized aromatic heterocycle imparts a polishing selectivity of silica over crystalline silicon of at least 100.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: December 7, 2021
    Assignee: Ferro Corporation
    Inventor: Nathaniel D. Urban
  • Patent number: 11174170
    Abstract: Modified copper chromite spinel pigments exhibit lower coefficients of thermal expansion than unmodified structures. Three methods exist to modify the pigments: (1) the incorporation of secondary modifiers into the pigment core composition, (2) control of the pigment firing profile, including both the temperature and the soak time, and (3) control of the pigment core composition.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: November 16, 2021
    Assignee: Ferro Corporation
    Inventors: George E. Sakoske, John J. Maloney, Cody Gleason, Srinivasan Sridharan
  • Patent number: 11168217
    Abstract: The present invention is directed to a coated bismuth oxy halide-based pigment having a coating comprising an anti-oxidant, said antioxidant is being a phenol based, a phosphite or phosphonate based, or a thioether based stabilizer, and the coating comprising an inner coating and an outer coating, wherein the outer coating comprises the antioxidant, and wherein the inner coating comprises a first layer consisting of one or more salts, or one or more oxides, heteropolyacids, organic acids, sulphites, sulfides, sulfates, phosphates, pyrophosphates, polyphosphates, hydrates, carbonates, or a combination thereof, selected from the group of alkali-earth metals, metals, non-metals, transition metals or lanthanides. Further, the present invention is directed to a composition comprising a paint, a lacquer, an ink, a cosmetic, a resin, a plastisol or a polymer formulation, and such pigment.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: November 9, 2021
    Assignee: Ferro Corporation
    Inventors: Greta Verspaille, Jürgen D'haeveloose, Vincent Devreux, Emmanuelle Clabaux
  • Patent number: 11098199
    Abstract: The present invention is directed to a method for manufacturing a bismuth based pigment having an improved alkaline resistance, the method comprising: i) obtaining a dried bismuth based pigment; ii) encapsulation of the bismuth based pigment using a chelating agent; iii) final processing of the encapsulated pigment; and v) drying of the pigment. In addition, the present invention is directed to a bismuth based pigment encapsulated by a layer of chelating agent.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: August 24, 2021
    Assignee: Ferro Corporation
    Inventors: Zeki Acar, Vincent Devreux, Greta Verspaille, Jürgen D'haeveloose, Emmanuelle Clabaux
  • Patent number: 11084950
    Abstract: A conductive paste is provided for forming conductive traces on substrates. The conductive paste includes a vehicle and conductive material. The vehicle includes a resin, a plasticizer, and a solvent in which the resin is dissolved. After application to a substrate, the conductive paste is cured at ambient temperature by evaporation of the solvent from the paste, to thereby form a conductive trace on the substrate. The conductive trace does not require a curing agent, and attains low resistivity within minutes of application to the substrate.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: August 10, 2021
    Assignee: Ferro Corporation
    Inventors: G. Edward Graddy, Jr., Ben E. Cruz
  • Patent number: 10941305
    Abstract: The present invention relates to a thermoplastic screen printing paste comprising one or more hydroxyfunction polyesters, one or more blocked polyisocyanates, pigments, and additives. The invention is characterized in that the melting or softening range of the thermoplastic screen printing paste lies at temperatures below 90° C. and the paste is free of bisphenol-A is and free of other substances directly involved in the polymerization itself.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 9, 2021
    Assignee: Ferro Corporation
    Inventors: Andreas Schulz, Elisabeth Gross
  • Patent number: 10854554
    Abstract: A compounded polymer material that can be laser marked is provided. The compounded polymer material includes an enhancer of nitrides, carbides, silicides, or combinations thereof. Upon forming the compounded polymer material into an article and exposing it to laser radiation, the irradiated portion of the compounded polymer material absorbs the laser radiation, increases in temperature, and forms a mark in the article. A lightness value difference (?L) between the mark and the non-irradiated portion of the article has an absolute value of at least 5, and the lightness value difference between the mark and the non-irradiated portion is greater than if the polymer material did not include the enhancer.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: December 1, 2020
    Assignee: Ferro Corporation
    Inventors: Joseph E. Sarver, Nicholas M. Karpa, Dennis R. Gilmore, George E. Sakoske
  • Patent number: 10800138
    Abstract: The present invention describes a new method for creating hybrid edge seals using metal, alloy, powder coated metal and other conductive surfaces in between two substrates. The methods utilize various materials, seal designs, and geometries of hybrid seals based on polymeric powder coatings and glass powder coatings.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: October 13, 2020
    Assignee: Ferro Corporation
    Inventors: Vineet Dua, Chandrashekhar S. Khadilkar, Srinivasan Sridharan, George E. Sakoske, Jackie Davis
  • Patent number: 10723160
    Abstract: A universal or all-purpose laser marking composition for forming satisfactorily dark laser marks on a wide variety of substrates is provided. The marking composition comprises an enhancer of nitrides, carbides, silicides, and combinations thereof. The enhancer may be selected one or more of ferromanganese, ferrosilicon, FexSi(1-x) where X can range from about 0.005 to 0.995, Fe5Si2, MgFeSi, SiC, CaSi, (Co)Mo, MoSi2, TiSi2, ZrSi2, WSi2, MnSi2, YSi, Cu5Si, Ni2Si, Fe3C, Fe7C3 and Fe2C, MoC, Mo2C, Mo3C2, YC2, WC, Al4C3, Mg2C, Mg2C3, CaC2, LaC2, Ta4C3, Fe2N, Fe3N, Fe4N, Fe7N3, Fe16N2, MoN, Mo2N, W2N, WN, WN2, and combinations thereof and combinations thereof.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: July 28, 2020
    Assignee: Ferro Corporation
    Inventors: Joseph E. Sarver, Nicholas M. Karpa, Dennis R. Gilmore, George E. Sakoske
  • Publication number: 20200079975
    Abstract: An acidic slurry composition for use in chemical-mechanical polishing including an acid pH adjuster and a cationic polishing suppressant comprising a quaternized aromatic heterocycle. The quaternized aromatic heterocycle imparts a polishing selectivity of silica over crystalline silicon of at least 100.
    Type: Application
    Filed: August 2, 2017
    Publication date: March 12, 2020
    Applicant: Ferro Corporation
    Inventor: Nathaniel D. URBAN
  • Patent number: 10577279
    Abstract: A method of modifying glass frit involves treating the frit with a grain-boundary-healing compound. The method increases transmission and clarity, and reduces haze of a fired enamel coating made from such modified glass frit as compared to a coating not made from such modified glass frit. The grain-boundary-healing compound influences the chemistry at the grain boundaries to prevent haze. The compound burns out to yield a fluxing material that dissolves alkaline carbonates or bicarbonates on the surface of the glass frit. The dissolved species are incorporated into the enamel coating, thereby promoting the fusion of the glass frit and reducing the amount of haze in the enamel coating. The additives also function to prevent the formation of seed crystals on the surface of the glass frit that may inhibit the fusion of the glass frit.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: March 3, 2020
    Assignee: Ferro Corporation
    Inventors: Enos A. Axtell, III, John J. Maloney, James D. Walker, Srinivasan Sridharan, George E. Sakoske
  • Patent number: 10562809
    Abstract: A low K value, high Q value, low firing dielectric material and method of forming a fired dielectric material. The dielectric material can be fired below 950° C. or below 1100° C., has a K value of less than about 8 at 10-30 GHz and a Q value of greater than 500 or greater than 1000 at 10-30 GHz. The dielectric material includes, before firing a solids portion including 10-95 wt % or 10-99 wt % silica powder and 5-90 wt % or 1-90 wt % glass component. The glass component includes 50-90 mole % SiO2, 5-35 mole % or 0.1-35 mole % B2O3, 0.1-10 mole % or 0.1-25 mole % Al2O3, 0.1-10 mole % K2O, 0.1-10 mole % Na2O, 0.1-20 mole % Li2O, 0.1-30 mole % F. The total amount of Li2O+Na2O+K2O is 0.1-30 mole % of the glass component. The silica powder can be amorphous or crystalline.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: February 18, 2020
    Assignee: Ferro Corporation
    Inventors: Cody J. Gleason, John J. Maloney, Srinivasan Sridharan, George E. Sakoske, Peter Marley, Mohammed H. Megherhi, Yie-Shein Her, Orville W. Brown, Jackie D. Davis, Thomas J. Coffey, Ellen S. Tormey, Stanley Wang, David L. Widlewski
  • Patent number: 10544332
    Abstract: A slurry composition for use in chemical-mechanical polishing sapphire substrates and includes an alkaline pH adjuster and an accelerant.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: January 28, 2020
    Assignee: Ferro Corporation
    Inventors: Mohammed H. Megherhi, Nathaniel D. Urban, Yie Shein Her
  • Patent number: 10508220
    Abstract: The present invention provides a slurry composition and method for polishing organic polymer-based ophthalmic substrates. The slurry composition according to the invention includes an aqueous dispersion of abrasive particles and one of a polyvinyl alcohol compound, and a tertiary amide functionalized compound. The abrasive particles can be alumina, zirconia, silica, titania, ceria, spinel or combinations of the foregoing.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: December 17, 2019
    Assignee: Ferro Corporation
    Inventors: Nathaniel D. Urban, Edward E. Abbott, Yue Liu
  • Patent number: 10508201
    Abstract: A method for manufacturing an azoic pigment is disclosed, according to an illustrative embodiment of the present invention. The method includes producing slurry of the azoic pigment. The slurry includes primary aromatic amine (PAA). The method further includes the derivatization of the residual PAA in the slurry, followed by encapsulation of the slurry. The slurry is acidified or basified. Finally, the slurry is further processed, thereby forming PAA migration free azoic pigment. The derivatization and encapsulation additively or synergistically reduce the PAA content thereby inhibiting migration of PAA from the pigment into a substrate onto which the pigment is loaded.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: December 17, 2019
    Assignee: Ferro Corporation
    Inventors: Vincent Devreux, Greta Verspaille, Jürgen D'haeveloose, Emmanuelle Clabaux
  • Patent number: 10494306
    Abstract: Electronic devices are produced from dielectric compositions comprising a mixture of precursor materials that, upon firing, forms a dielectric material comprising a barium-titanium-tungsten-silicon oxide.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: December 3, 2019
    Assignee: Ferro Corporation
    Inventor: Walter J. Symes, Jr.