Patent application number | Description | Published |
20080286548 | Down-drawable, chemically strengthened glass for cover plate - An alkali aluminosilicate glass that is chemically strengthened and has a down-drawable composition. The glass has a melting temperature less than about 1650° C. and a liquidus viscosity of at least 130 kpoise and, in one embodiment, greater than 250 kpoise. The glass undergoes ion exchange at relatively low temperatures to a depth of at least 30 μm. | 11-20-2008 |
20090142568 | GLASSES HAVING IMPROVED TOUGHNESS AND SCRATCH RESISTANCE - A silicate glass that is tough and scratch resistant. The toughness is increased by minimizing the number of non-bridging oxygen atoms in the glass. In one embodiment, the silicate glass is an aluminoborosilicate glass in which −15 mol 1%≦(R | 06-04-2009 |
20090215607 | FINING AGENTS FOR SILICATE GLASSES - A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm | 08-27-2009 |
20090220761 | ION EXCHANGED, FAST COOLED GLASSES - A glass that is ion exchangeable to a depth of at least 20 μm (microns) and has a internal region having a tension of less than or equal to 100 MPa. The glass is quenched or fast cooled from a first temperature above the anneal point of the glass to a second temperature that is below the strain point of the glass. In one embodiment, the glass is a silicate glass, such as an alkali silicate glass, an alkali aluminosilicate glass, an aluminosilicate glass, a borosilicate glass, an alkali aluminogermanate glass, an alkali germanate glass, an alkali gallogermanate glass, and combinations thereof. | 09-03-2009 |
20100009154 | GLASS WITH COMPRESSIVE SURFACE FOR CONSUMER APPLICATIONS - A strengthened glass that does not exhibit frangible behavior when subjected to impact or contact forces, and a method of strengthening a glass. The glass may be strengthened by subjecting it to multiple, successive, ion exchange treatments. The multiple ion exchange treatments provide a local compressive stress maximum at a depth of the strengthened layer and a second local maximum at or near (e.g., within 10 μm) the surface of the glass. | 01-14-2010 |
20100210442 | METHOD OF SEPARATING STRENGTHENED GLASS - A method is provided for separating or dividing strengthened glass articles, particularly strengthened glass sheets, into at least two pieces, one of which has a predetermined shape and/or dimension. A flaw is initiated in the glass at a depth that is greater than the depth of the strengthened surface layer of the glass, and a vent extending from the flaw is created at a vent depth that is greater than the depth of and outside the strengthened surface layer to at least partially separate the glass. In one embodiment, the vent is generated by treating the glass with a laser to heat the glass to a temperature in a range from about 50° C. below the strain point of the glass up to a temperature between the strain point and the anneal point of the glass. A glass article having at least one strengthened surface and at least one edge having an average edge strength of at least 200 MPa is also described. | 08-19-2010 |
20100215862 | METHOD FOR FORMING AN OPAL GLASS - A method of fowling an opal layer on an optically transparent alkali-silicate glass sheet, wherein a liquidus viscosity of the alkali silicate glass forming the sheet is at least about 200,000 poise, a liquidus temperature of the alkali silicate glass is equal to or less than about 1200° C. and wherein the exposed surface of the glass sheet after the exposing comprises an opal layer. The method includes exposing a surface of the optically transparent alkali silicate glass sheet to an alkali metal salt bath at a temperature equal to or greater than 300° C. for at least 5 minutes. | 08-26-2010 |
20100291353 | METHOD OF SEPARATING STRENGTHENED GLASS - A method of cutting a glass sheet that has been thermally or chemically strengthened along a predetermined line, axis, or direction with high speed and with minimum damage on the cut edges. The strengthened glass sheet may be an aluminoborosilicate glass material having at least one alkali metal oxide modifier, and the ratio | 11-18-2010 |
20110201490 | CRACK AND SCRATCH RESISTANT GLASS AND ENCLOSURES MADE THEREFROM - A glass and an enclosure, including windows, cover plates, and substrates for mobile electronic devices comprising the glass. The glass has a crack initiation threshold that is sufficient to withstand direct impact, has a retained strength following abrasion that is greater than soda lime and alkali aluminosilicate glasses, and is resistant to damage when scratched. The enclosure includes cover plates, windows, screens, and casings for mobile electronic devices and information terminal devices. | 08-18-2011 |
20110293942 | VARIABLE TEMPERATURE/CONTINUOUS ION EXCHANGE PROCESS - A method of ion exchanging glass and glass ceramic articles. The method includes immersion of at least one such article in an ion exchange bath having a first end and a second end that are heated to first and second temperatures, respectively. The first and second temperature may either be equal or different from each other, with the latter state creating a temperature gradient across or along the ion exchange bath. Continuous processing of multiple articles is also possible in the ion exchange bath. | 12-01-2011 |
20110294648 | ION EXCHANGEABLE GLASSES - An ion exchangeable glass that is free of lithium and comprising 0.1-10 mol % P | 12-01-2011 |
20110294649 | GLASSES HAVING LOW SOFTENING TEMPERATURES AND HIGH TOUGHNESS - Glasses having a low softening point and high toughness. The glasses are alkali aluminoborosilicate glasses having softening points of less than 900° C. and, in some embodiments, in a range from about 650° C. up to about 825° C., and an indenter damage threshold of at least 300 g for glasses that are not chemically strengthened. The glasses are free of alkaline earth metals, lead, arsenic, antimony, and, in some embodiments, lithium. | 12-01-2011 |
20120135177 | METHODS FOR FORMING GROOVES AND SEPARATING STRENGTHENED GLASS SUBSTRATE SHEETS - Methods for separating strengthened glass articles from glass substrate sheets and strengthened glass substrate sheets are described herein. In one embodiment, a method of separating a glass article from a glass substrate sheet includes forming at least one groove on at least one surface of the glass substrate sheet. The at least one groove continuously extends around a perimeter of the glass article and extends partially through a thickness of the glass substrate sheet. The method further includes strengthening the glass substrate sheet by a strengthening process and separating the glass article from the glass substrate sheet along the at least one groove such that one or more edges of the glass article are under compressive stress. In another embodiment, a strengthened glass substrate sheet includes an ion exchanged glass having one or more grooves in one or more strengthened surface layers, the one or more grooves defining glass articles. | 05-31-2012 |
20120145331 | METHODS FOR LASER CUTTING ARTICLES FROM ION EXCHANGED GLASS SUBSTRATES - A method of cutting an article ( | 06-14-2012 |
20120159991 | FINING AGENTS FOR SILICATE GLASSES - A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm | 06-28-2012 |
20120196071 | STRENGTHENED GLASS SUBSTRATE SHEETS AND METHODS FOR FABRICATING GLASS PANELS FROM GLASS SUBSTRATE SHEETS - Strengthened glass substrate sheets and methods of fabricating glass panels from glass substrate sheets are disclosed. In one embodiment, a method includes forming at least one series of holes through a thickness of the glass substrate sheet, wherein the at least one series of holes defines a perimeter of the glass panel to be separated from the glass substrate sheet. The method further includes strengthening the glass substrate sheet by a strengthening process, and separating the glass panel from the glass substrate sheet along the at least one series of holes. At least a portion of one or more edges of the glass panel has an associated edge compressive layer. In another embodiment, a strengthened glass substrate sheet includes at least one series of holes that defines a perimeter of one or more glass panels to be separated from the strengthened glass substrate sheet. | 08-02-2012 |
20120216570 | LOCAL STRENGTHENING OF GLASS BY ION EXCHANGE - This disclosure describes a process for strengthening, by ion-exchange, the edges of an article separated from a large glass sheet after the sheet has been ion-exchanged to strengthen by exposing only the one or a plurality of the edges of the separated article to an ion-exchange medium (for example without limitation, a salt, paste, frit, glass) while the glass surface is maintained at temperatures less than 200° C. | 08-30-2012 |
20120252652 | SILICATE GLASSES HAVING LOW SEED CONCENTRATION - A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm | 10-04-2012 |
20120308803 | GLASSES HAVING IMPROVED TOUGHNESS AND SCRATCH RESISTANCE - A silicate glass that is tough and scratch resistant. The toughness is increased by minimizing the number of non-bridging oxygen atoms in the glass. In one embodiment, the silicate glass is an aluminoborosilicate glass in which −15 mol %≦(R | 12-06-2012 |
20130180665 | METHODS FOR LASER CUTTING ARTICLES FROM ION EXCHANGED GLASS SUBSTRATES - A method of cutting an article ( | 07-18-2013 |
20130192305 | METHODS FOR SEPARATING GLASS SUBSTRATE SHEETS BY LASER-FORMED GROOVES - Methods for separating glass articles from glass substrate sheets are described herein. In one embodiment, a method includes focusing a laser beam on at least one surface of the glass substrate sheet such that the laser beam has an asymmetrical intensity distribution at the at least one surface of the glass substrate sheet. The method further includes translating the laser beam on the at least one surface of the glass substrate sheet along a desired groove line to form at least one groove on the at least one surface of the glass substrate sheet. The at least one groove extends partially through a thickness of the glass substrate sheet along the desired groove line and has bevelled or chamfered walls. The glass article may be separated from the glass substrate sheet along the at least one groove. | 08-01-2013 |
20130219965 | COUNTER-CURRENT CONTINUOUS ION-EXCHANGE METHOD FOR STRENGTHENING GLASS ARTICLES - This disclosure is directed to a continuous flow ion-exchange system and process (CIOX) in which a fresh molten salt, for example KNO | 08-29-2013 |
20130281281 | SILICATE GLASSES HAVING LOW SEED CONCENTRATION - A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm | 10-24-2013 |
20140023865 | ION EXCHANGEABLE LI-CONTAINING GLASS COMPOSITIONS FOR 3-D FORMING - According to one embodiment, a glass article may include SiO | 01-23-2014 |
20140034374 | GLASS INTERPOSER PANELS AND METHODS FOR MAKING THE SAME - Glass interposer panels and methods for forming the same are described herein. The interposer panels include a glass substrate core formed from an ion-exchangeable glass. A first layer of compressive stress may extend from a first surface of the glass substrate into the thickness T of the glass substrate core to a first depth of layer D | 02-06-2014 |
20140066285 | COLORED AND OPAQUE GLASS-CERAMIC(S), ASSOCIATED COLORABLE AND CERAMABLE GLASS(ES), AND ASSOCIATED PROCESS(ES) - Disclosed herein are glass-ceramics having crystalline phases including β-spodumene ss and either (i) pseudobrookite or (ii) vanadium or vanadium containing compounds so as to be colored and opaque glass-ceramics having coordinates, determined from total reflectance—specular included—measurements, in the CIELAB color space of the following ranges: L*=from about 20 to about 45; a*=from about −2 to about +2; and b*=from about −12 to about +1. Such CIELAB color space coordinates can be substantially uniform throughout the glass-ceramics. In each of the proceeding, β-quartz ss can be substantially absent from the crystalline phases. If present, β-quartz ss can be less than about 20 wt % or, alternatively, less than about 15 wt % of the crystalline phases. Also Further crystalline phases might include spinel ss (e.g., hercynite and/or gahnite-hercynite ss), rutile, magnesium zinc phosphate, or spinel ss (e.g., hercynite and/or gahnite-hercynite ss) and rutile. | 03-06-2014 |
20140113798 | FINING AGENTS FOR SILICATE GLASSES - A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm | 04-24-2014 |
20140308526 | ION EXCHANGEABLE GLASSES - An ion exchangeable glass that is free of lithium and comprising 0.1-10 mol % P | 10-16-2014 |
20140329660 | CRACK AND SCRATCH RESISTANT GLASS AND ENCLOSURES MADE THEREFROM - A glass and an enclosure, including windows, cover plates, and substrates for mobile electronic devices comprising the glass. The glass has a crack initiation threshold that is sufficient to withstand direct impact, has a retained strength following abrasion that is greater than soda lime and alkali aluminosilicate glasses, and is resistant to damage when scratched. The enclosure includes cover plates, windows, screens, and casings for mobile electronic devices and information terminal devices. | 11-06-2014 |
20150030827 | LOW CTE, ION-EXCHANGEABLE GLASS COMPOSITIONS AND GLASS ARTICLES COMPRISING THE SAME - Glass compositions and glass articles comprising the glass compositions are disclosed. In one embodiment, a glass composition includes from about 65 mol. % to about 70 mol. % SiO2; from about 9 mol. % to about 14 mol. % Al | 01-29-2015 |
20150030840 | TWO-STEP METHOD FOR STRENGTHENING GLASS - A method of strengthening an alkali aluminoborosilicate glass. A compressive layer extending from a surface of the glass to a depth of layer is formed by exchanging larger metal cations for smaller metal cations present in the glass. In a second step, metal cations in the glass are exchanged for larger metal cations to a second depth in the glass that is less than the depth of layer and increase the compressive stress of the compressive layer. Formation of the compressive layer and replacement of cations with larger cations can be achieved by a two-step ion exchange process. An alkali aluminoborosilicate glass having a compressive layer and a crack indentation threshold of at least 3000 gf is also provided. | 01-29-2015 |
20150064473 | ION EXCHANGEABLE GLASS CONTAINING BORON AND PHOSPHOROUS - Ion exchangeable glasses containing SiO | 03-05-2015 |