Patents Assigned to Ferro Corporation
  • Pigment additive for improving solar reflectance
    Patent number: 8580028
    Abstract: A pigment additive and resulting pigment are described that when incorporated in paints for example, significantly increases total solar reflectance. Also described are compositions utilizing the noted pigments, and related methods. The pigments are formed from iron oxide and/or chromium oxide and utilize as an additive, one or more phosphate compounds.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: November 12, 2013
    Assignee: Ferro Corporation
    Inventors: Gary L. Nuccetelli, Lei Wang, Daniel R. Swiler
  • Method and apparatus for enhanced size reduction of particles
    Patent number: 8535720
    Abstract: The present invention provides methods and apparatus for producing particles via supercritical fluid processing. In one embodiment, the method includes expanding a supercritical fluid plasticized melt across a pressure drop to form solid composite particles that are simultaneously dispersed, foamed and cooled, and milling the solid particles produced to achieve the desired size distribution. In another embodiment, a pressure vessel containing a supercritical fluid plasticized melt is depressurized to form a cooled solid porous mass, which is then milled to obtain solid composite particles.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: September 17, 2013
    Assignee: Ferro Corporation
    Inventors: Boris Y. Shekunov, Pratibhash Chattopadhyay, Jeffrey S. Seitzinger, Robert W. Huff
  • High Performance Organic, Inorganic Or Hybrid Seals
    Publication number: 20130236662
    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: Application
    Filed: March 12, 2013
    Publication date: September 12, 2013
    Applicant: FERRO CORPORATION
    Inventors: Vineet Dua, Chandrashekhar S. Khadilkar, Srinivasan Sridharan, George E. Sakoske
  • Hermetically Sealed Electronic Device Using Solder Bonding
    Publication number: 20130206230
    Abstract: Solder can be used to wet and bind glass substrates together to ensure a hermetic seal that superior (less penetrable) than conventional polymeric (thermoplastic or thermoplastic elastomer) seals in electric and electronic applications.
    Type: Application
    Filed: July 22, 2011
    Publication date: August 15, 2013
    Applicant: Ferro Corporation
    Inventors: Srinivasan Sridharan, Robert P. Blonski, Chandrashekhar Khadilkar, John J. Maloney
  • Polymer Composite Foams
    Publication number: 20130203878
    Abstract: Foamed polymeric compositions containing clay nucleating agents are described. The clays are preferably sepioiite, palygorskite/attapulgite, or combinations thereof. Also described are processes for forming the foamed compositions. The resulting products find particular application as insulation and packaging materials.
    Type: Application
    Filed: May 12, 2011
    Publication date: August 8, 2013
    Applicant: FERRO CORPORATION
    Inventors: Juan-Antonio Igualada, Jose-Luis Feijoo
  • Hermetically Sealed Electronic Device Using Coated Glass Flakes
    Publication number: 20130164466
    Abstract: A glass-flake loaded organic sealant system is useful for sealing active layers such as those in electronic devices and solar cells.
    Type: Application
    Filed: July 22, 2011
    Publication date: June 27, 2013
    Applicant: FERRO CORPORATION
    Inventors: Chandrashekhar S. Khadilkar, Robert P. Blonski, Srinivasan Sridharan, Jackie D. Davis, John J. Maloney, James D. Walker, Andrew M. Rohn, JR.
  • Easy rinsing polishing composition for polymer-based surfaces
    Patent number: 8449636
    Abstract: A polishing composition and method for polishing polymer-based surfaces that can be rinsed from the polished polymer-based surface using water so as to leave substantially less polishing residue behind as compared to conventional polishing compositions. Polishing compositions according to the invention include abrasive particles and a rinsing agent dispersed in water. Polishing compositions according to the invention can be used to polish all types of polymer-based surfaces including, for example, organic polymer-based ophthalmic substrates and clear-coat automotive finishes.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: May 28, 2013
    Assignee: Ferro Corporation
    Inventor: Jon Jun Song
  • Hermetic Sealing of Glass Plates
    Publication number: 20130111953
    Abstract: Durable hermetic seals between two inorganic substrates are produced using a high-intensity electromagnetic energy source, such as laser, to heat and seal enamel layers with controlled absorption of high-intensity energy source. Durable hermetic seals incorporating electrical feedthroughs are also produced.
    Type: Application
    Filed: April 27, 2011
    Publication date: May 9, 2013
    Applicant: FERRO CORPORATION
    Inventors: John J. Maloney, Robert P. Blonski, Chandrashekhar S. Khadilkar, Srinivasan Sridharan
  • Low-Melting Lead-Free Bismuth Sealing Glasses
    Publication number: 20130104980
    Abstract: Glasses comprising Bi203, ZnO B203 and optionally a colorant including an oxide of a metal such as iron, cobalt, manganese, nickel, copper and chromium are suitable to form hermetic seals in solar cell modules, architectural glass windows and MEMS devices. Glass frit and paste compositions suitable for flow and bonding to various substrates—glass, metal, silicon, in the temperature range of 400-500 degrees Centigrade. The broad compositional range in mole % is 25-70% Bi203, up to 65% ZnO, and 1-70% B203. Such glasses do not have batched in alumina or silica. Such glasses lack alumina and silica.
    Type: Application
    Filed: April 15, 2011
    Publication date: May 2, 2013
    Applicant: FERRO CORPORATION
    Inventors: Srinivasan Sridharan, John J. Maloney, Chandrashekhar Khadilkar, Robert P. Blonski, David L. Widlewski
  • Chemical-mechanical polishing compositions and methods of making and using the same
    Patent number: 8409990
    Abstract: The present invention provides an aqueous CMP slurry composition that includes abrasive particles and from about 0.01% to the limit of solubility in water of a compound according to Formula (I): wherein only one of R1, R2, R3, R4 and R5 is a hydroxyl group (—OH), only one of R1, R2, R3, R4 and R5 is a methoxy group (—OCH3), and the three of R1, R2, R3, R4 and R5 that are not either a hydroxyl group (—OH) or a methoxy group (—OCH3) are hydrogen atoms (—H).
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: April 2, 2013
    Assignee: Ferro Corporation
    Inventor: Bradley M. Kraft
  • Hot-Melt Sealing Glass Compositions And Devices Using The Same
    Publication number: 20130062712
    Abstract: Hot-melt sealing glass compositions that include one or more glass frits dispersed in a polymeric binder system. The polymeric binder system is a solid at room temperature, but melts at a temperature of from about 35° C. to about 90° C., thereby forming a flowable liquid dispersion that can be applied to a substrate (e.g., a cap wafer and/or a device wafer of a MEMS device) by screen printing. Hot-melt sealing glass compositions according to the invention rapidly re-solidify and adhere to the substrate after being deposited by screen printing. Thus, they do not tend to spread out as much as conventional solvent-based glass frit bonding pastes after screen printing. And, because hot-melt sealing glass compositions according to the invention are not solvent-based systems, they do not need to be force dried after deposition.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 14, 2013
    Applicant: FERRO CORPORATION
    Inventors: Robert D. Gardner, Keith M. Mason, Srinivasan Sridharan, Aziz S. Shaikh
  • Dark Colored Easy-To-Clean Enamel
    Publication number: 20130045389
    Abstract: A composition that upon firing, forms a low-temperature clean enamel layer is disclosed. The composition can be applied to a metal substrate to provide a low-temperature cleaning, durable coating for cooking surfaces. Also disclosed are methods of forming enamel layers and corresponding coated substrates. Various ground coats and related methods are also described. Furthermore, various multilayer coatings and structures are disclosed that include an enamel layer and a ground coat layer.
    Type: Application
    Filed: October 26, 2012
    Publication date: February 21, 2013
    Applicant: FERRO CORPORATION
    Inventor: Ferro Corporation
  • Thick Film Pastes For Fire Through Applications In Solar Cells
    Publication number: 20130040422
    Abstract: Formulations and methods of making solar cell contacts and cells therewith are disclosed. The invention provides a photovoltaic cell comprising a front contact, a back contact, and a rear contact. The back contact comprises, prior to firing, a passivating layer onto which is applied a paste, comprising aluminum, a glass component, wherein the aluminum paste comprises, aluminum, another optional metal, a glass component, and a vehicle. The back contact comprises, prior to firing, a passivating layer onto which is applied an aluminum paste, wherein the aluminum paste comprises aluminum, a glass component, and a vehicle.
    Type: Application
    Filed: September 13, 2012
    Publication date: February 14, 2013
    Applicant: FERRO CORPORATION
    Inventors: Nazarali Merchant, Aziz S. Shaikh, Srinivasan Sridharan
  • Materials for Improved Adhesion Relating to Functional Cold End Coatings (CECs) and Methods of Detecting Same
    Publication number: 20130040392
    Abstract: Various agents for improving adhesion of cold end coatings on glass surfaces are described Also described are agents for improving bonding between cold end coatings and organic inks. And, methods and related detection solutions for detecting the presence of cold end coatings on a substrate such as a glass bottle are disclosed. Additionally, particular additives and primers are described that can be applied onto cold end coatings for improving adhesion thereto.
    Type: Application
    Filed: January 21, 2011
    Publication date: February 14, 2013
    Applicant: FERRO CORPORATION
    Inventors: Cindy Pankiewicz, Thirumalai Duraisamy, Bertram Gardner, Ian Dudas, David C. Kapp, Enos A. Axtell, III, George E. Sakoske
  • Pigment Additive For Improving Solar Reflectance
    Publication number: 20130036944
    Abstract: A pigment additive and resulting pigment are described that when incorporated in paints for example, significantly increases total solar reflectance. Also described are compositions utilizing the noted pigments, and related methods. The pigments are formed from iron oxide and/or chromium oxide and utilize as an additive, one or more phosphate compounds.
    Type: Application
    Filed: February 18, 2011
    Publication date: February 14, 2013
    Applicant: FERRO CORPORATION
    Inventors: Gary L. Nuccetelli, Lei Wang, Daniel R. Swiler
  • Hot-melt sealing glass compositions and methods of making and using the same
    Patent number: 8307674
    Abstract: Hot-melt sealing glass compositions that include one or more glass frits dispersed in a polymeric binder system. The polymeric binder system is a solid at room temperature, but melts at a temperature of from about 35° C. to about 90° C., thereby forming a flowable liquid dispersion that can be applied to a substrate (e.g., a cap wafer and/or a device wafer of a MEMS device) by screen printing. Hot-melt sealing glass compositions according to the invention rapidly re-solidify and adhere to the substrate after being deposited by screen printing. Thus, they do not tend to spread out as much as conventional solvent-based glass frit bonding pastes after screen printing. And, because hot-melt sealing glass compositions according to the invention are not solvent-based systems, they do not need to be force dried after deposition.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: November 13, 2012
    Assignee: Ferro Corporation
    Inventors: Robert D. Gardner, Keith M. Mason, Srinivasan Sridharan, Aziz S. Shaikh
  • Thick film pastes for fire through applications in solar cells
    Patent number: 8309844
    Abstract: Formulations and methods of making solar cell contacts and cells therewith are disclosed. The invention provides a photovoltaic cell comprising a front contact, a back contact, and a rear contact. The back contact comprises, prior to firing, a passivating layer onto which is applied a paste, comprising aluminum, a glass component, wherein the aluminum paste comprises, aluminum, another optional metal, a glass component, and a vehicle. The back contact comprises, prior to firing, a passivating layer onto which is applied an aluminum paste, wherein the aluminum paste comprises aluminum, a glass component, and a vehicle.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: November 13, 2012
    Assignee: Ferro Corporation
    Inventors: Nazarali Merchant, Aziz S. Shaikh, Srinivasan Sridharan
  • Glass Frit Compositions For Enamels
    Publication number: 20120282407
    Abstract: This invention relates to glass and enamel compositions. The glass compositions comprise SiO2, Cs2O, Na2O, ZnO, B2O3, and TiO2, and optionally Bi2O3 and F. The resulting compositions can be used to form an enamel on a substrate, for example, to decorate and/or protect the substrate.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 8, 2012
    Applicant: FERRO CORPORATION
    Inventors: Sandeep K. Singh, George E. Sakoske, David A. Klimas
  • Lead and cadmium free, low temperature fired X7R dielectric ceramic composition and method of making
    Patent number: 8305731
    Abstract: Multilayer ceramic chip capacitors (MLCC's) which satisfy X7R TCC requirements and which are compatible with silver-palladium internal electrodes. The MLCC's exhibit desirable dielectric properties—high capacitance, low dissipation factor, high insulation resistance, stable TCC—and excellent performance on highly accelerated life testing, and good resistance to dielectric breakdown. The dielectric layers include a lead-free and cadmium-free barium titanate base material doped with other metal oxides such oxides of zinc, boron, bismuth, barium, titanium, praseodymium, cerium, tungsten, neodymium, tungsten, tin, niobium, copper, and/or manganese in various combinations. The dielectric ceramic materials herein can be fired at less than 1150° C. with an inner electrode having 70 wt % or more Ag and 30 wt % or less Pd to form an MLCC.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: November 6, 2012
    Assignee: Ferro Corporation
    Inventors: Walter J. Symes, Jr., Mike S. H. Chu
  • Layered Contact Structure For Solar Cells
    Publication number: 20120270366
    Abstract: Formulations and methods of making semiconductor devices and solar cell contacts are disclosed. The invention provides a method of making a semiconductor device or solar cell contact including ink jet printing onto a silicon wafer an ink composition, typically including a high solids loading (20-80 wt %) of glass frit and preferably a conductive metal such as silver. The wafer is then fired such that the glass frit fuses to form a glass, thereby forming a contact layer to silicon.
    Type: Application
    Filed: July 6, 2012
    Publication date: October 25, 2012
    Applicant: FERRO CORPORATION
    Inventors: Chandrashekhar S. Khadilkar, Srinivasan Sridharan, Paul S. Seman, Aziz S. Shaikh