Patents Assigned to Ferro Corporation
  • 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.
  • Patent number: 10427973
    Abstract: A fired hybrid enamel coating is provided. The hybrid enamel coating is formed by firing an enamel composition on a substrate. The enamel composition includes at least a first glass frit, which is sintered to form the hybrid enamel coating. The hybrid enamel coating can be cleaned using aqualytic or pyrolytic cleaning methods, and does not discolor or lose gloss when subject to typical pyrolytic cleaning methods. The hybrid enamel coating does not require the application of highly caustic cleaners to remove the baked-on soils.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: October 1, 2019
    Assignee: Ferro Corporation
    Inventors: Andrew Gorecki, Charles A. Baldwin, Brad Devine, Albert L. Benford, Jr., Ralph Villoni, Karine Sarrazy, Alain Aronica, Teddy Colombe, Angélique Leseur
  • Publication number: 20190249012
    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: Application
    Filed: September 22, 2017
    Publication date: August 15, 2019
    Applicant: Ferro Corporation
    Inventors: Zeki Acar, Vincent Devreux, Greta Verspaille, Jürgen D'haeveloose, Emmanuelle Clabaux
  • Patent number: 10370290
    Abstract: A passivation glass coating composition is provided for forming a fired passivation glass layer on a semiconductor substrate having p-n junction. The passivation glass coating composition includes a glass component that is lead free, cadmium free, alkali metal oxides free, and colored transition metal oxides (i.e. metal oxides of V, Fe, Co, Ni, Cr, Cu, Mn) free. The glass component includes bismuth based glasses, and provides a firing temperature range of 500° C. to 900° C., and controlled devitrification. Once fired to a semiconductor device, the fired passivation glass layer provides exceptional device performance including no cracking of the fired passivation glass layer, excellent thermal expansion matching to silicon, good chemical resistance to acid and base, and improved device performance.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: August 6, 2019
    Assignee: Ferro Corporation
    Inventors: Srinivasan Sridharan, John J. Maloney, George E. Sakoske, Gregory R. Prinzbach, David Widlewski, Jackie Davis, Bradford Smith
  • Patent number: 10287211
    Abstract: LTCC devices are produced from dielectric compositions comprising a mixture of precursor materials that, upon firing, forms a dielectric material comprising a barium-tungsten-silicon host.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: May 14, 2019
    Assignee: Ferro Corporation
    Inventor: Walter J. Symes, Jr.
  • Patent number: 10266444
    Abstract: Methods of making multilayer glass structure are described. The method involves providing first and second glass sheets, and a first enamel composition layer and at least one separation layer between the first and second glass sheets, and firing the glass sheets to sinter the first enamel composition to the first glass sheet. The separation layer is a black pigment separation layer, a refractory material separation layer, or an oxidizer separation layer. The separation layer can improve separation of the first and second glass sheets after the firing.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: April 23, 2019
    Assignee: Ferro Corporation
    Inventors: Terry J. Brown, George E. Sakoske, Osamu Ishii
  • Patent number: 10174211
    Abstract: Silver pastes including two powders having different physical properties and silver flakes together with glass frits and pigments impart improved thermal stress characteristics to substrates upon firing.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: January 8, 2019
    Assignee: Ferro Corporation
    Inventors: Terry J. Brown, Jeffrey Grover, David Klimas, George E. Sakoske
  • Patent number: 10065894
    Abstract: Electronic devices are produced from dielectric compositions comprising a mixture of precursor materials that, upon firing, forms a dielectric material comprising a barium-strontium-titanium-tungsten-silicon oxide.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: September 4, 2018
    Assignee: Ferro Corporation
    Inventor: Walter J. Symes, Jr.
  • Patent number: 10047004
    Abstract: A multi-layer glass enamel is disclosed. The various layers of the enamel are included to provide certain performance characteristics to the enamel. The components of each layer can be individually adjusted to tailor the performance characteristics influenced by that layer without changing the influence of the remaining layers.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: August 14, 2018
    Assignee: Ferro Corporation
    Inventors: George E. Sakoske, Phil Maitland, Dietrich Speer, Walter Frank
  • Publication number: 20180170797
    Abstract: A fired hybrid enamel coating is provided. The hybrid enamel coating is formed by firing an enamel composition on a substrate. The enamel composition includes at least a first glass frit, which is sintered to form the hybrid enamel coating. The hybrid enamel coating can be cleaned using aqualytic or pyrolytic cleaning methods, and does not discolor or lose gloss when subject to typical pyrolytic cleaning methods.
    Type: Application
    Filed: August 26, 2016
    Publication date: June 21, 2018
    Applicant: Ferro Corporation
    Inventors: Andrew Gorecki, Charles A. Baldwin, Brad Devine, Albert L. Benford, Jr., Ralph Villoni, Karine Sarrazy, Alain Aronica, Teddy Colombe, Angélique Leseur