ЛИСТОВОЕ СТЕКЛО (ВАРИАНТЫ) И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Изобретение имеет своим предметом листовое стекло, предпочтительно произведенное флоат-процессом, упрочненное поверхностным ионным обменом в течение длительного периода при температуре такой, что обменная глубина превышает 200 микрон для поверхностных сжимающих напряжений более 400 МПа и превышает 50 микрон для поверхностных сжимающих напряжений более 700 МПа, и матрица которого удовлетворяет одному из следующих составов, выраженных в мас. % SiO2 65-76, Al2O3 1,5-5, MgO 4-8, CaO до 4,5, Na2O 10-18, K2O 1-7, B2O3 до 4%, причем эти элементы представляют по меньшей мере 96% по весу от стекла и удовлетворяют, кроме того, соотношениям в мас.% 0 < CaO/CaO + MgO < 0,45 и 0,05 < K2 O/Na2O + K2O < 0,35. Стекло формуют на установке флоат-типа и обрабатывают калийным ионным обменом в течение более 72 часов при температуре 350-475oC. Изобретение обеспечивает получение стекол с большой толщиной упрочненного слоя. 4 с. и 10 з.п. ф-лы, 2 табл., 4 ил.

Способ получения пористого стекла

Изобретение относится к технологии производства пористого стекла и может найти применение для производства фильтрующих трубок с контролируемым размером пор, которые могут быть использованы в промышленных установках, использующих принцип фильтрации в виде трубчатых систем, и позволяет создать более простой в исполнении способ получения пористого стекла с заданными свойствами. Поставленная задача решается тем, что в способе получения пористого стекла, включающем обработку исходного щелочно-боросиликатного стекла или изделия из него при повышенной температуре выщелачивающим агентом в автоклаве, в качестве выщелачивающего агента используют пароводяную смесь, при этом изделие из исходного стекла подвергают изотермической выдержке в автоклаве, частично заполненном дистиллированной водой, в течение 1-7 суток при температуре 250-300°С под давлением насыщенного пара с последующим охлаждением. 3 табл., 2 ил.

Bordinterne Anzeigevorrichtung

Bereitgestellt wird eine bordinterne Anzeigevorrichtung, die ein Deckglas mit hervorragender Stoßfestigkeit aufweist. Gebildet wird die bordinterne Anzeigevorrichtung durch Auflaminieren von Elementen von einem Oberflächenschichtdeckglas als erster Schicht bis zu einer n-ten Schicht, wobei das Deckglas ein verstärktes Glas ist, das eine Plattendicke von 0,5 bis 2,5 mm und eine Tiefe einer Oberflächenkompressionsbelastungsschicht von wenigstens 10 μm aufweist, und die Vorrichtung die spezifische Formel (I) erfüllt.

Glaszusammensetzungen mit verbesserter chemischer und mechanischer Beständigkeit

Glaszusammensetzung, enthaltend: SiO2 in einer Konzentration von mehr als 74 Mol.-%, Erdalkalioxid, welches MgO und CaO enthält, wobei CaO in einer Menge von mehr als oder gleich 0,1 Mol.-% und weniger als oder gleich 1,0 Mol.-% enthalten ist und ein Verhältnis (CaO (Mol.-%)/(CaO (Mol.-%) + MgO (Mol.-%))) kleiner als oder gleich 0,5 ist, und Y Mol.-% Alkalioxid, wobei das Alkalioxid Na2O in einer Menge von mehr als 8 Mol.-% enthält, wobei die Glaszusammensetzung frei von Bor und Borverbindungen ist.

Beschichtetes Glas und Verfahren zu seiner Herstellung

Verfahren zur Unterdrückung einer Metallverunreinigung bei einer Hochtemperaturbehandlung von Materialien

Es wird ein Verfahren zur Behandlung von Glas und kristallinen, anorganischen Materialien offenbart, wobei eine Metallverunreinigung während eines solchen Verfahrens verhindert wird. Solche Verfahren schließen die Behandlung des Materials in Gegenwart einer reinigenden Atmosphäre, die ein Reinigungsgas umfasst, ein. Das Verfahren ist insbesondere vorteilhaft für die Behandlung hochreinen, synthetischen Quarzglases zur Verwendung in hoch entwickelten, lithographischen Vorrichtungen.

VERFAHREN ZUR HERSTELLUNG FARBIGER, PHOTOCHROMER GLAESER

GLASS PANELS

... 1321742 Glass laminates GLAVERBEL 24 May 1971 [25 May 1970] 16580/71 Heading B5N [Also in Division C1] A method of making a panel incorporating two sheets of glass which are assembled in facing relationship and each of which is optically anisotropic in at least one zone thereof comprises securing said sheets in facing relationship with the sheets positioned and oriented relative to each other so that there is within the area of the panel at least one zone in which both sheets exhibit anisotropy in respect of at least one common optical property but in different ways such that if for each of the sheets, the differences in the magnitudes of the or a said property from one direction to another around a point located within the sheet in that zone are represented by a set of notional vectors of appropriately different lengths radiating from said point (the points in the different sheets being directly opposite each other in the panel) the geometric figures plotted by the ends of the respective ...

LAMINATED PANELS INCORPORATING GLASS SHEETS

... 1359170 Glass laminates GLAVERBEL 21 May 1971 48841/73 Divided out of 1359166 Heading B5N [Also in Division C1] A glass panel comprising a first sheet of glass 2 secured by an intervening organic sheet 3 to a second sheet of glass 1, both sheets 1 and 2 having been chemically tempered, is characterized in that the second sheet 1 can be flexed to impose flexing forces on the first sheet 2 sufficient to break that sheet but the relative inherent strengths of the sheets 2, 1 are such that, if tested independently the resistance of the first sheet 2 to breakage by flexure in a direction such that the flexure imposes tensioning forces on its side 5 which in the panel is remote from the second sheet 1 would be higher than the resistance of the second sheet 1 to breakage by flexure which imposes tensioning forces on the side 6 of the sheet which in the panel faces the first sheet 2. The panel may be flat or curved in one or more planes. Preferably the first sheet 2 is at least 1À25 times the thickness ...

Techniques for strengthening glass covers for portable electronic devices

A method for strengthening a glass cover for an electronic device is disclosed, where the method comprises chemical strengthening in a series of stages. The stages can have a first ion exchange stage using heated solutions (melts) where larger ions are exchanged into the glass cover, and a second ion exchange stage where some of the larger ions are exchanged out from the glass cover. The region of peak compressive strength 1028 occurs at a distance below the treated surface. Optionally, the glass cover can have its strength increased by forming its edges with a predetermined curved or chamfered geometry. In one embodiment, the glass member can pertain to a glass cover for a housing for an electronic device. The glass cover can be provided over or integrated with a display, such as Liquid Crystal Display (LCD) display.

COATED GLASS

A method of colouring glass fibres or other silicious fibres

... 516,826. Glass threads and fibres; colouring glass; softening water. NAAMLOOZE VENNOOTSCHAP. MAATSCHAPPIJ TOT BEHEER EN EXPLOITATIE VAN OCTROOIEN. July 11, 1938, No. 20483. Convention date, July 16, 1937. [Class 56] Threads or fibres of glass or other siliceous material are coloured by bringing them into contact for example, by immersion, with a solution containing metallic salts or inorganic dyes. Metallic ions from the solution replace basic constitutents of the glass and produce a colouration within the fibres. After 'the glass has absorbed a metallic ion it may be treated with another solution containing a suitable anion which combines with the metallic ion to form a coloured compound within the glass. For example, the fibres may be treated with a solution of lead acetate and.then with a solution of potassium bichromate to form lead chromate in the glass. Organic dyes, particularly of the basic type, may be used similarly. Examples of methods of treatment are given in the Specification ...

PROCESSES FOR TEMPERING GLASS AND VITRO-CRYSTALLINE MATERIALS

... 1,215,722. Treating glass. GLAVERBEL. 22 Dec., 1967 [24 April, 1967], No. 58384/67. Heading C1M. Glass or vitro-crystalline bodies are given compressive surface stresses by causing alkali metal ions to diffuse into the surface layers from a contacting medium in exchange forsmaller alkali metal ions at a temperature which is not sufficiently high to allow complete stress relaxation to occur, the ion exchange being promoted by additionally including alkaline earth metal ions in the contacting medium. The contacting medium is preferably in molten form and may additionally contain a compound providing halogen ions or a compound which acidifies or increases the acidity of the medium, e.g. compounds providing metal ions in valency state of 3, 4 or 5 such as Al+3 , Sn+4 , Ti+4, Bi+5 or a compound providing ions which show an affinity for alkali metal ions diffusing out of the body, e.g. gives rise to the formation of a complex such as one of the group Fe, Co ...

OPTICAL WAVEGUIDE STRUCTURES

... 1490809 Optical waveguides STANDARD TELEPHONES & CABLES Ltd 18 Dec 1975 51830/75 Heading ClM [Also in Division G2] An optical waveguide structure is made by diffusing a refractive index-reducing dopant into a glass body 1 to form a surface layer 2, and causing the dopant to migrate under the influence of an applied inhomogenous electric field to produce a dopant-denuded region 6 forming the core of the waveguide, the core region being bounded by a doped layer 7 of lower refractive index. Further dopant may be introduced so that the core is wholly surrounded by a doped layer of lower refractive index (Fig. 3, not shown). The inhomogenous electric field may be applied between flat electrode 3 and a shaped electrode 4. The dopant may be introduced with the aid of an electric field. The dopant is preferably introduced from a molten salt. K+ ions may replace Ba++ ions in a K 2 O-BaO-SiO 2 glass, or Na+ ions (from an NaNO 3 melt) may replace Pb ions in a glass. Alternatively ...

FIRE-SAFE AND HIGH TEMPERATURE-STEADY WINDOWPANES AND PROCEDURES FOR THEIR PRODUCTION

PROCEDURE FOR THE MARKING OF A DISK SAFETY GLASS

FIRE-SAFE AND HIGH TEMPERATURE-STEADY WINDOWPANES AND PROCEDURES FOR THEIR PRODUCTION

COATED GLASS.

Procedure for treating glass fibers and according to it manufactured glass fibers.

DISK UNIT, CONSISTING OF SEVERAL SCHEIBENFORMIGEN COMPONENTS AND PROCEDURES FOR YOUR PRODUCTION

LIME SODA SILICA GLASS COMPOSITIONS AND THEIR APPLICATIONS

Procedure for the modification of a physical and/or chemical characteristic of glass, vitrokristallinem material, ceramic material or rock

Procedure and device for hardening glass or vitrokristallinem material

Procedures and device for the production one by ion exchange recompensed glass article

Procedure for the increase of the firmness of a material from glass or a vitrokristallinen material

Procedure for the mechanical Festigkeitsverbsserung of glass articles by ion exchange

Procedure and device for the treatment of a Glasschmelze

BENDING AND TOUGHENING OF SILVERED SHEET GLASS

Luminescent glass

Annealing of glass to alter chemical strengthening behavior

Apparatus, systems and methods for improving chemical strengthening behavior in glass members are disclosed. According to one aspect, a method for processing a glass part formed using a fusion process or a float process includes annealing the glass part and then chemically strengthening the glass part. Annealing the glass part includes at least heating the glass part at a first temperature, maintaining the first temperature, and cooling the glass part to a second temperature using a controlled cooling process. Chemically strengthening the glass part includes facilitating an ion exchange between ions included in the glass part and ions included in a chemical strengthening bath.

HEAT TREATING SILVER COATED GLASS SHEET

OPTICAL FIBRES

GLASS COMPOSITIONS WITH IMPROVED CHEMICAL AND MECHANICAL DURABILITY

A glass composition comprising: from about 70 mol.% to about 80 mol.% SiO2; from about 4 mol.% to about 8 mol.% alkaline earth oxide, the alkaline earth oxide comprising CaO and from about 3 mol.% to about 7 mol.% MgO; X mol.% A120 3 , wherein X is from about 5 to about 7; and Y mol.% alkali oxide, wherein the alkali oxide comprises Na20 in an amount greater than 8 mol.%, and the glass composition is free of boron and compounds of boron.

Glass compositions with improved chemical and mechanical durability

The embodiments described herein relate to chemically and mechanically durable glass compositions and glass articles formed from the same. In another embodiment, a glass composition may include from about 70 mol.% to about 80 mol.% SiO ...

GLASS OPTICAL WAVEGUIDE

Soda-lime-silica glass compositions and uses thereof

DECOMPOSABLE GLASS

METHOD OF PRODUCING OPTICAL FIBRES FOR TELECOMMUNICATION

... "". Method of producing optical fibres for telecommunication. When producing a glass fibre, having a graded refractive index profile, by means of the double crucible method, the initial product being a pair Or a core and a cladding glass composition having mutually different alkali-ions, a profile is usually obtained which greatly deviates from the desired parabolic form. The invention furnishes the possibility to approximate this very closely. This is attained by a partial substitution of the core alkali ion by the cladding alkali-ion.

SURFACE COATING OF VITREOUS BODIES

HEAT-INSULATING SCREEN

GRADED REFRACTIVE INDEX FIBERS AND RODS

LOW TEMPERATURE REDUCTION PROCESS FOR LARGE PHOTOMASKS

HOLLOW BODY HAVING A WALL OF GLASS WITH A SURFACE REGION HAVING CONTENTS OF SI AND N

The invention refers to a hollow body (100) comprising a wall of glass (101) which at least partially surrounds an interior volume (102) of the hollow body (100); wherein the wall of glass (101) has a wall surface (103), which comprises a surface region (104); wherein at least in the surface region (104) the wall surface (103) has a content of a) N in a range from 0.3 to 10.0 at-%, and b) Si at least 5 at-%, wherein the preceding contents are determined by an X-ray photoelectron spectroscopy. Further, the invention refers to a process (300) for making an item and a hollow body (100) obtainable thereby; to a closed container (200); to a process (300) for packaging a pharmaceutical composition (201); to a closed hollow body (200) obtainable by this process (300); to a use of a hollow body (100) for packaging a pharmaceutical composition (201); and to a use of composition comprising N.

PERALUMINOUS NEPHELINE/KALSILITE GLASS-CERAMICS

Verfahren zum Färben von Glasfasern und nach demselben gefärbte Glasfaser.

Procédé pour former des signes, tels que échelle, dessin ou autre, dans un verre

Elektrische Leiteranordnung

Verfahren zum Behandeln von Glasfasern.

Article de verre et procédé pour sa fabrication

Procédé et disposition pour tremper une pièce en matériau vitreux ou vitrocristallin

Procédé de façonnage de verre fondu ou plastique, appareillage pour la mise en oeuvre de ce procédé et objet en verre façonné résultant dudit procédé

Feuille de verre de sécurité trempé et son procédé de préparation

Procédé de fabrication d'articles en verre trempé

Verfahren zur Herstellung eines verstärkten Glasgegenstandes

Procédé pour déposer au moins une couche sur des objets en matériau vitreux ou vitrocristallin

Rohrförmiges Quarzglasgeräteteil

VERFAHREN ZUR ABLAGERUNG EINES METALLISCHEN MATERIALS AUF EIN NICHTMETALLISCHES SUBSTRAT.

PROCEDE DE FABRICATION D'UN PANNEAU COMPRENANT PLUSIEURS FEUILLES ET PANNEAU AINSI FABRIQUE.

Verfahren zur Herstellung von Glas mit höherer Bruchfestigkeit

Procédé et dispositif pour le renforcement de corps en verre, en matière vitrocristalline ou en céramique

Procédé pour favoriser la diffusion d'au moins une substance dans un objet en verre, en matière vitrocristalline ou en matière céramique

Procédé et appareil pour la fabrication d'un corps en verre, en matière vitrocristalline ou en céramique

Verfahren zur Herstellung eines verstärkten Glasgegenstandes

Procédé de fabrication d'une feuille de verre et dispositif pour la mise en oeuvre de ce procédé

Procédé de fabrication d'une feuille de verre et dispositif pour sa mise en oeuvre

Procédé et dispositif pour le traitement de verre en feuille

Procédé et dispositif pour la trempe chimique d'un objet ou d'une partie d'objet au moins partiellement vitreux

Procédé de fabrication d'objets en matière vitreuse, vitrocristalline ou céramique, portant un ou plusieurs revêtements vitreux

Procédé pour le renforcement de propriétés physiques et/ou chimiques d'objets en verre, en matériau vitrocristallin ou d'une roche

Procédé et dispositif de modification d'un corps vitreux, en matière vitrocristalline, en céramique ou en roche

Procédé de renforcement d'une couche de matériau vitreux ou vitro-cristallin

Laminated windscreen - with ion diffusion surface hardened glass sheet

The plate comprises at least one glass or vitro crystalline material plate, which has been, previous to assembly subjected on one side to an ion diffusion treatment to produce an internally stressed skin zone forming the outside of the sandwich assembly. Furthermore a zone of this treated surface may be subjected to a tempering treatment to reduce breaking resistance against bending. The tempering consists of partial chemical removal of surface layer. The treatment reduces danger of spontaneous breakage of glass.

PROCEDE DE FABRICATION D'UN PANNEAU STRATIFIE COMPRENANT AU MOINS UNE FEUILLE DE VERRE ET PANNEAU AINSI FABRIQUE. MOINS UNE FEUILLE DE VERRE ET PANNEAU AINSI FABRIQUE.

Reinforced glass article and process for its manufacture

An opaque or coloured glass product is manufactured by producing a blank from a glass of the silicate or germinate class, of porous structure with communicating pores, one or a number of dopants are deposited nonuniformly inside the pores of this blank so that after collapse of the walls of the pores and homogeneous consolidation of the blank in a suitable atmosphere in order to maintain the opacity or the colour, and after cooling of the blank, the surface layers of the latter are maintained under a stress ensuring a reinforcement of the mechanical strength of the blank. This process can be applied to the manufacture of reinforced glass articles such as windows, cooker tops, tubes, laboratory apparatus, tanks or the like.

Process for manufacturing glazed structures, especially for optical waveguides

A glass article is manufactured in which a doping agent is incorporated into a porous glazed structure constituting a matrix with communicating pores, by immersing this matrix in a solution containing the doping agent or dopant within the matrix and the solvent (and if necessary the decomposition products) is removed from the matrix after which the latter is heated until causing the collapse of the pores and the production of a homogeneous continuous structure, the precipitation of the dopant within the matrix being carried out without appreciable evaporation of the solvent, and the matrix, after precipitation of the dopant, being subjected to a controlled drying operation with a view to eliminating the solvent, thereby producing a suitable distribution of the dopant within the glass article. Optical waveguides of the graded-index type may thus be produced.

Glass-ceramic material, and process for the production thereof

Process for reduction at low temperature for the manufacture of photomasks

Glass photomasks which have a high-definition pattern for use in photographic manufacturing processes are manufactured by causing colouring ions to penetrate below the surface of the glass and by reducing and aggregating the colouring ions using pure hydrogen under pressure at a relatively moderate temperature. A coloured pattern with very high definition is thus obtained.

СПОСОБ ПОЛУЧЕНИЯ ФУНКЦИОНАЛЬНЫХ СТЕКЛЯННЫХ ПОВЕРХНОСТЕЙ ПУТЕМ ИЗМЕНЕНИЯ КОМПОЗИЦИИ ИСХОДНОЙ ПОВЕРХНОСТИ

Изобретение относится к способу модифицирования стекловидных поверхностей. Способ включает в себя получение наночастиц, осаждение указанных наночастиц на поверхность и обеспечение подачи энергии к частицам и/или поверхности, вследствие чего наночастицы, по меньшей мере, частично диффундируют/растворяются в стекловидной поверхности. Способ также включает уменьшение энергии когезии наночастиц во время получения наночастиц или после получения наночастиц.

METHOD OF OBTAINING THE FUNCTIONAL GLASS SURFACES BY CHANGING THE COMPOSITION OF THE INITIAL SURFACE

Method for manufacturing reinforced glass plate, and method for manufacturing glass plate for reinforcement

SUBSTRATE OUT OF GLASS REINFORCES

COMPOSITIONS OF GLASS IN PHOTOCHROMIC SHEET AND ARTICLES CARRIED OUT FROM SUCH COMPOSITIONS

SURFACE TREATMENT OF GLASS AND SIMILAR MATERIALS

VERRE DESALCALINISE EN FEUILLES ET PROCEDE DE FABRICATION D'UN TEL VERRE

L'INVENTION SE RAPPORTE A DU VERRE DESALCALINISE EN FEUILLES ET A UN PROCEDE DE FABRICATION DE VERRE DESALCALINISE EN FEUILLES. LA PROFONDEUR A LAQUELLE LA CONCENTRATION EN IONS DE SODIUM DU VERRE EST 90 DE LA CONCENTRATION MAXIMUM DU VERRE EN IONS DE SODIUM EST AU MOINS LE DOUBLE DE LA PROFONDEUR A LAQUELLE CETTE CONCENTRATION EST 50 DE LA CONCENTRATION MAXIMUM; ET LA CONCENTRATION EN IONS DE SODIUM A UNE PROFONDEUR DE 50 NM N'EST PAS SUPERIEURE A 50 DE LA CONCENTRATION MAXIMUM. LE VERRE SELON L'INVENTION EST NOTAMMENT INTERESSANT POUR SON ENTREPOSAGE, POUR SON UTILISATION COMME COUVERTURE DE DISPOSITIFS A CRISTAUX LIQUIDES ET POUR RECEVOIR UN REVETEMENT SUR SA SURFACE.

ARTICLE OUT OF GLASS REINFORCES AND PROCEEDED FOR SA MANUFACTURE

CHEMICALLY STRENGTHENED GLASS OF IMPROVED IMPACT RESISTANCE

Improvements to processes for the manufacture of flat glass, and tapes or sheets resulting flat glass

FIBRES OPTIQUES EN VERRES FLUORES ET PROCEDES DE FABRICATION DE CES FIBRES

L'objet de l'invention consiste à prévoir pour les fibres optiques un matériau dont les qualités de transmission soient au moins celles de la silice, mais avec une température de fusion nettement plus basse. Il est prévu d'utiliser un verre fluoré comportant du tétrafluorure de zirconium ou d'hanium, du fluorure de baryum et du fluorure de thorium ou de terre rare. Plusieurs méthodes de fabrication sont décrites. Notamment pour fabriquer une fibre à saut d'indice, on coule d'abord un verre dans un creuset, dont on supprime le fond après un certain temps, pour que la partie encore liquide s'écoule, puis on y coule le coeur. Utilisable pour les fibres à saut ou à gradient d'indice.

Thermochemical process of treatment of glass

PROCESS FOR THE PRODUCTION OF FIBEROPTICS

Optical fibre mfr. - using fluoride glass compsns. contg. transition and/or rare earth metals

METHOD FOR PRODUCING A METAL COATED GLASS?CERAMIC ARTICLE

MAKING SURFACE CRYSTALLIZED GLASS BODIES AND RESULTING PRODUCT

Method for cutting tempered glass, preparatory structure used in cutting tempered glass, and glass block cut from tempered glass substrate

A method for cutting a tempered glass includes the following steps. First, a shielding layer is formed on a part of a surface of a glass substrate, and a predetermined cutting path passes through the part of the surface. Then, a glass substrate is given an ion-exchange strengthening treatment, and the part of the surface covered by the shielding layer substantially does not undergo ion-exchange. Finally, the glass substrate is cut along the predetermined cutting path.

Anti-glare glass sheet having compressive stress equipoise and methods thereof

A chemically-strengthened glass sheet including: a smooth first side; and a rough second side, wherein the compressive stress values of the smooth first-side and the rough second-side are substantially in equipoise. Methods of making and using the glass sheet, as defined herein, are disclosed. A display system that incorporates the glass sheet, as defined herein, is also disclosed.

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 3 is also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cm 3 are also described.

Enhanced chemical strengthening glass for portable electronic devices

Apparatus, systems and methods for improving strength of a thin glass member for an electronic device are disclosed. In one embodiment, the glass member can have improved strength characteristics in accordance with a predetermined stress profile. The predetermined stress profile can be formed through multiple stages of chemical strengthening. The stages can, for example, have a first ion exchange stage where larger ions are exchanged into the glass member, and a second ion exchange stage where some of the larger ions are exchanged out from the glass member. In one embodiment, the glass member can pertain to a glass cover for a housing for an electronic device. The glass cover can be provided over or integrated with a display.

Method of manufacturing a glass substrate for use as a cover glass for a mobile electronic device, glass substrate for use as a cover glass for a mobile electronic device, and mobile electronic device

A glass substrate manufacturing method of this invention includes a first chemical strengthening process for chemically strengthening a plate-like glass member by ion exchange, a cutting process for cutting the plate-like glass member into small pieces after the first chemical strengthening process, thereby obtaining a plurality of glass substrates, and a second chemical strengthening process for chemically strengthening the glass substrates by ion exchange after the cutting process.

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.

Tempered glass substrate and method of producing the same

A tempered glass substrate of the present invention is a tempered glass substrate, which has a compression stress layer on a surface thereof, and has a glass composition comprising, in terms of mass %, 40 to 71% of SiO 2 , 3 to 21% of Al 2 O 3 , 0 to 3.5% of Li 2 O, 7 to 20% of Na 2 O, and 0 to 15% of K 2 O.

Glass with high frictive damage resistance

A glass article exhibiting improved resistance to fictive surface damage and a method for making it, the method comprising removing a layer of glass from at least a portion of a surface of the article that is of a layer thickness at least effective to reduce the number and/or depth of flaws on the surface of the article, and then applying a friction-reducing coating to the portion of the article from which the layer of surface glass has been removed.

Glass for use as substrate for information recording medium, substrate for information recording medium and information recording medium, and their production methods

According to one aspect of the present invention, provided is glass for use in substrate for information recording medium, which comprises, denoted as molar percentages, a total of 70 to 85 percent of SiO 2 and Al 2 O 3 , where SiO 2 content is equal to or greater than 50 percent and Al 2 O 3 content is equal to or greater than 3 percent; a total of equal to or greater than 10 percent of Li 2 O, Na 2 O and K 2 O; a total of 1 to 6 percent of CaO and MgO, where CaO content is greater than MgO content; a total of greater than 0 percent but equal to or lower than 4 percent of ZrO 2 , HfO 2 , Nb 2 O 5 , Ta 2 O 5 , La 2 O 3 Y 2 O 3 and TiO 2 ; with the molar ratio of the total content of Li 2 O, Na 2 O and K 2 O to the total content of SiO 2 , Al 2 O 3 , ZrO 2 , HfO 2 , Nb 2 O 5 , Ta 2 O 5 , La 2 O 3 , Y 2 O 3 and TiO 2 ((Li 2 O+Na 2 O+K 2 O)/(SiO 2 +Al 2 O 3 +ZrO 2 +HfO 2 +Nb 2 O 5 +Ta 2 O 5 +La 2 O 3 +Y 2 O 3 +TiO 2 )) being equal to or less than 0.28. Further provided are the substrate for information recording medium, information recording medium and their manufacturing methods according to the present invention.

Glass substrate of cover glass for portable electronic device, image display unit for portable electronic device, portable electronic device and method of manufacturing glass substrate of cover glass for portable electronic device

The present invention provides a glass substrate of a cover glass for a portable electronic device. The glass substrate includes a front face, a back face and an edge face. The edge face is at least partially formed by means of an etching treatment. A compressive stress layer, formed by means of an ion-exchanging method, is disposed on each of the front and back faces of the glass substrate. The compressive stress layer has the same thickness both in a planar-directional center part thereof and in a planar-directional end part thereof on each of the front and back faces of the glass substrate.

Display cover glass and display

Disclosed are a thin-sheet cover glass that is high in quality and has high mechanical strength, and a display equipped with the aforementioned cover glass. The cover glass is used to cover the image display unit of a display and to make images displayed by the aforementioned image display unit opaque. The cover glass is formed from a glass that comprises, in an oxide base conversion indicated in mol %, 60 to 75% SiO 2 , 0 to 12% Al 2 O 3 (provided that the total content of SiO 2 and Al 2 O 3 is 68% or more), 0 to 10% B 2 O 3 , 5 to 26% Li 2 O and Na 2 O in total, 0 to 8% K 2 O (provided that the total content of Li 2 O, Na 2 O, and K 2 O is 26% or less), 0 to 18% MgO, CaO, SrO, BaO in total, and ZnO, and 0 to 5% ZrO 2 , TiO 2 , and HfO 2 in total, as well as a total of 0.1 to 3.5 mass % of an Sn oxide and a Ce oxide relative to the total mass, wherein (Sn oxide content/(Sn oxide content+Ce oxide content)) is 0.01 to 0.99, and the content of an Sb oxide is 0 to 0.1%; and has a plate thickness of no more than 1.0 mm.

Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied

Disclosed are a glass substrate for an information recording medium, having excellent scratch resistance and a light weight and having high fracture toughness, the glass substrate having a fragility index value, measured in water, of 12 μm −1/2 or less or having a fragility index value, measured in an atmosphere having a dew point of −5° C. or lower, of 7 μm −1/2 or less, or the glass substrate comprising, by mol %, 40 to 75% of SiO 2 , 2 to 45% of B 2 O 3 and/or Al 2 O 3 and 0 to 40% of R′ 2 O in which R′ is at least one member selected from the group consisting of Li, Na and K), wherein the total content of SiO 2 , B 2 O 3 , Al 2 O 3 and R′ 2 O is at least 90 mol %, and a magnetic information recording medium comprising a magnetic recording layer formed on the glass substrate.

Manufacturing method of a glass blank for magnetic disk and manufacturing method of a glass substrate for magnetic disk

A manufacturing method of a glass blank for magnetic disk including a pair of principal surfaces, the method including: dropping process for dropping a lump of molten glass; pressing process for forming a sheet glass material by sandwiching simultaneously the lump from both sides of the dropping path of the lump with surfaces of the pair of dies facing together, and performing press forming to the lump; and temperature adjusting process for adjusting temperature of the lump before the pressing process such that viscosity variation of the lump is reduced with respect to positions over the entirety of the lump in the pressing process.

DAMAGE RESISTANT, CHEMICALLY TOUGHENED PROTECTIVE COVER GLASS

The invention is directed to a high strength, chemically toughened protective glass article, the glass article having a high damage tolerance threshold of at least 1500 g as measured by the lack of radial cracks when the load is applied to the glass using a Vickers indenter; preferably greater than 2000 g is measured by the lack of initiation of radial cracks when the load is applied to the glass using a Vickers indenter 1. A method of designing the ion-exchange parameters in thin glass articles for use as protective cover glasses , said method comprising the steps of:choosing the depth of the compression layer required to achieve the desired level of damage resistance as measured by a Vickers indenter test and/or a scratch resistant test using a Knoop diamond indenter;selecting the compressive stress that will allow a designed maximum tensile stress to develop in the center of the glass article;diluting an ion-exchange bath containing alkali metal ions having a diameter larger than that of sodium ions with sodium ions to achieve the desired compressive stress;providing a glass sheet, said glass sheet being made of a glass selected from the group consisting of alkali containing aluminosilicate glasses, alkali containing aluminoborosilicate glasses, alkali containing borosilicate glasses and alkali containing glass-ceramics;chemically strengthening the glass sheet by ion-exchanging Na and/or Li ions in the surface of the glass for larger ions, said chemical exchange being to a depth of at least 40 μm from the surface of the sheet; andfinishing the sheet by cutting and polishing as required to make the glass article;wherein, when finished, said glass article has damage tolerance threshold of at least 2000 g as measured by the lack of the presence of radial cracks when the load is applied to the glass using a Vickers indenter.2. The method according to claim 1 , wherein providing a glass sheet means provided a glass sheet whose composition comprising 64 mol %≦SiO≦68 ...

METHOD FOR MANUFACTURING STRENGTHENED GLASS SUBSTRATE, AND STRENGTHENED GLASS SUBSTRATE

A method for manufacturing a strengthened glass substrate includes: a chemical strengthening step of chemically strengthening a plate glass material by ion-exchange; and a shaping step of cutting the chemically strengthened plate glass material by etching. In the chemical strengthening step, the ion-exchange is performed to satisfy the condition of 7≦T≦50 [MPa], when the thickness of the plate glass material is denoted by t [μm], the thickness of the compressive stress layer by d [μm], the maximum compressive stress value of the compressive stress layer by F [MPa], the compressive stress integrated value of the compressive stress layer by X [MPa·μm], the thickness of the tensile stress layer by t[μm], the average tensile stress value of the tensile stress layer by T[MPa], and the relationships represented by equations X=F×d, t=t−2d and T=X/tare satisfied. 1. A method for manufacturing a strengthened glass substrate comprising:a chemical strengthening step of performing ion-exchange on a plate glass material to form a compressive stress layer in a surface layer of the plate glass material while forming a tensile stress layer in a deep portion other than the surface layer; anda shaping step of performing etching on the plate glass material which has been subjected to the chemical strengthening step to cut the plate glass material into small-sized glass substrates, wherein:the plate glass material is prepared, consisting of alumino-silicate glass containing an alkali metal oxide; andin the chemical strengthening step, the ion-exchange is performed to generate such a tensile stress that the plate glass material is not damaged by the etching.3. The method for manufacturing a strengthened glass substrate according to claim 1 , further comprising claim 1 , after the chemical strengthening step and before the shaping step claim 1 , a decorating layer formation step of forming one or more decorating layers on at least one of the surfaces of the plate glass material which has ...

Method and apparatus for forming a writable erasable area on an object

A method of forming a writable erasable area on an object includes selecting a glass sheet having a front surface and a back surface, where the front surface is opposed to and parallel to the back surface. An area of the object where the writable erasable area is to be located is selected. The selected area has a select non-flat shape. The shape of the glass sheet is conformed to the select non-flat shape. The glass sheet is then mounted on the object such that the glass sheet is located at the selected area of the object and conforms in shape to the selected area of the object.

RARE EARTH IONS DOPED ALKALI METAL SILICATE LUMINESCENT GLASS AND THE PREPARATION METHOD THEREOF

A preparation method of rare earth ions doped alkali metal silicate luminescent glass is provided. The steps involves: step 1, mixing the source compounds of cerium, terbium and alkali metals and putting the mixture into solvent to get a mixed solution; step 2, impregnating the nanometer micropores glass with the mixed solution obtained in step 1; step 3: calcining the impregnated nanometer micropores glass obtained in step 2 in a reducing atmosphere, cooling to room temperature, then obtaining the cerium and terbium co-doped alkali metal silicate luminescent glass. Besides, the rare earth ions doped alkali metal silicate luminescent glass prepared with aforesaid method is also provided. In the prepared luminescent glass, cerium ions can transmit absorbed energy to terbium ions under the excitation of UV light due to the co-doping of cerium ions. As a result, the said luminescent glass has higher luminous intensity than the glass only doped with terbium. 1. A preparation method of rare earth ions doped alkali metal silicate luminescent glass , comprising:step one: mixing the source compounds of cerium, terbium and alkali metal and dissolving them in a solvent to obtain a mixed solution;step two: submerging a nano-porous glass into the mixed solution obtained in step 1 for soaking;step three: sintering the soaked nano-porous glass obtained in step 2 in reductive atmosphere, then cooling to room temperature to obtain a cerium and terbium co-doped alkali metal silicate luminescent glass.2. The preparation method of claim 1 , wherein in step one the source compound of terbium is one or more selected from the group consisting of oxide claim 1 , nitrate claim 1 , chloride and acetate of terbium; the source compound of cerium is one or more selected from the group consisting of oxide claim 1 , nitrate claim 1 , chloride claim 1 , sulfate and acetate of cerium; the source compound of alkali metal is one or more selected from the group consisting of nitrate claim 1 , ...

METHOD FOR PRODUCING COLORED GLASS

The invention relates to a method for producing colored glass in which at least one powdery and/or sandy raw glass material is melted. The invention further relates to glass produced according to said method. According to the invention, finished nanoparticles made of at least one metal are mixed with the raw glass material and subsequently the mixture is melted together. The glass according to the invention comprises nanoparticles made of at least one metal and exhibits a dichroism that is dependent on whether light is reflected or transmitted by the glass The glass according to the invention is thus colored and changes its color depending on whether visible light is reflected or transmitted. 1. A method for producing colored glass , comprising melting at least one powdery and/or sandy raw glass material , mixing finished nanoparticles comprising at least one metal are with the raw glass material to produce a mixture before melting , and subsequently melting the mixture together.2. The method according to claim 1 , wherein the nanoparticles are admixed to the raw glass material at a concentration of 0.001% by weight to 0.20% by weight.3. The method according to claim 1 , wherein the nanoparticles consist of at least one metal.4. The method according to claim 3 , wherein the nanoparticles consist of gold claim 3 , silver claim 3 , copper claim 3 , platinum and/or nickel.5. The method according to claim 1 , wherein the raw glass material comprises glass sand and/or crushed glass.6. The method according to claim 1 , wherein the mixture is melted at a temperature from 400° C. to 1400° C.7. The method according to claim 1 , wherein the mixture is melted for a duration of 3 to 40 hours.8. A glass comprising nanoparticles made of at least one metal and exhibiting dichroism depending on whether the light is reflected or transmitted by the glass claim 1 , wherein the glass was produced according to the method of .9. The glass according to claim 8 , wherein the nanoparticles ...

ION EXCHANGEABLE GLASS WITH HIGH CRACK INITIATION THRESHOLD

Alkali aluminosilicate glasses that are resistant to damage due to sharp impact and capable of fast ion exchange are provided. The glasses comprise at least 4 mol % POand, when ion exchanged, have a Vickers indentation crack initiation load of at least about 7 kgf. 2. The alkali aluminosilicate glass of claim 1 , wherein the glass satisfies:{'br': None, 'sub': 2', '3', 'x, '[MO(mol%)/RO(mol%)]<1.4.'}3. The alkali aluminosilicate glass of claim 2 , wherein the glass satisfies:{'br': None, 'sub': 2', '3', 'x, '[MO(mol%)/RO(mol%)]<1.'}4. The alkali aluminosilicate glass of claim 1 , wherein the glass satisfies:{'br': None, 'sub': 2', '5', '2', '2', '3, '1.3<[(PO+RO)/MO]≦2.3.'}5. The alkali aluminosilicate glass of claim 4 , wherein the glass satisfies:{'br': None, 'sub': 2', '5', '2', '2', '3, '1.5<[(PO+RO)/MO]≦2.0.'}6. The alkali aluminosilicate glass of claim 1 , further comprising less than 1 mol % KO.7. The alkali aluminosilicate glass of claim 6 , wherein the alkali aluminosilicate glass comprises 0 mol % KO.8. The alkali aluminosilicate glass of claim 1 , further comprising less than 1 mol % BO.9. The alkali aluminosilicate glass of claim 8 , wherein the alkali aluminosilicate glass comprises 0 mol % BO.10. The alkali aluminosilicate glass of claim 1 , wherein the glass is ion exchanged to a depth of layer of at least about 10 μm.11. The alkali aluminosilicate glass of claim 10 , wherein the glass is ion exchanged to a depth of layer of at least about 30 μm.12. The alkali aluminosilicate glass of claim 10 , wherein the alkali aluminosilicate glass has a compressive layer extending from a surface of the glass to the depth of layer claim 10 , and wherein the compressive layer is under a compressive stress of at least about 300 MPa.13. The alkali aluminosilicate glass of claim 12 , wherein the compressive stress is at least about 500 MPa.14. The alkali aluminosilicate glass of claim 10 , wherein the ion exchanged alkali aluminosilicate glass has a Vickers ...

ACID STRENGTHENING OF GLASS

Disclosed herein are methods for strengthening glass articles having strength-limiting surface flaws, together with strengthened glass articles produced by such methods, and electronic devices incorporating the strengthened glass articles. The methods generally involve contacting the glass articles with a substantially fluoride-free aqueous acidic treating medium for a time at least sufficient to increase the rupture failure points of the glass articles. 1. A method , comprising: strength-limiting surface flaws having a first shape; and', 'a first rupture failure point; and, 'providing a glass article, comprisingcontacting the glass article with a substantially fluoride-free aqueous acidic treating medium having a pH of less than or equal to about 3 to produce an acid-treated strengthened glass article comprising a second rupture failure point,wherein at least a subset of the strength-limiting surface flaws of the acid-treated strengthened glass article have a second shape, andwherein the contacting occurs for a time at least sufficient to render the second rupture failure point higher than the first rupture failure point.2. The method of claim 1 , further comprising rinsing the acid-treated strengthened glass article to remove the substantially fluoride-free aqueous acidic treating medium therefrom.3. The method of claim 1 , further comprising incorporating the acid-treated strengthened glass article in an electronic device.4. The method of claim 1 , wherein the glass article comprises a silicate glass claim 1 , borosilicate glass claim 1 , aluminosilicate glass claim 1 , or boroaluminosilicate glass claim 1 , which optionally comprises an alkali or alkaline earth modifier.5. The method of claim 1 , wherein the substantially fluoride-free aqueous acidic treating medium is fluoride free.6. The method of claim 1 , wherein the substantially fluoride-free aqueous acidic treating medium comprises about 0.001 weight percent to about 0.095 weight percent fluoride ions.7. ...

ION EXCHANGEABLE GLASS WITH HIGH CRACK INITIATION THRESHOLD

Alkali aluminosilicate glasses that are resistant to damage due to sharp impact and capable of fast ion exchange are provided. The glasses comprise at least 4 mol % POand, when ion exchanged, have a Vickers indentation crack initiation load of at least about 7 kgf. 2. The alkali aluminosilicate glass of claim 1 , wherein the glass satisfies:{'br': None, 'sub': 2', '3', 'x, '0.6<[MO(mol %)/RO(mol %)]<1.4.'}3. The alkali aluminosilicate glass of claim 2 , wherein the glass satisfies:{'br': None, 'sub': 2', '3', 'x, '0.6<[MO(mol %)/RO(mol %)]<1.'}4. The alkali aluminosilicate glass of claim 1 , wherein the glass satisfies:{'br': None, 'sub': 2', '5', '2', '2', '3, '1.3<[(PO+RO)/MO]≦2.3.'}5. The alkali aluminosilicate glass of claim 4 , wherein the glass satisfies:{'br': None, 'sub': 2', '5', '2', '2', '3, '1.5<[(PO+RO)/MO]≦2.0.'}6. The alkali aluminosilicate glass of claim 1 , further comprising less than 1 mol % KO.7. The alkali aluminosilicate glass of claim 1 , further comprising less than 1 mol % BO.8. The alkali aluminosilicate glass of claim 1 , wherein the alkali aluminosilicate glass has a potassium/sodium interdiffusion coefficient of at least about 2.4×10cm/s at 410° C.9. The alkali aluminosilicate glass of claim 7 , wherein the potassium/sodium interdiffusion coefficient is in a range from about 2.4×10cm/s up to about 6×10cm/s at 410° C.10. The alkali aluminosilicate glass of claim 1 , wherein the glass has a compressive layer extending from a surface of the glass to the depth of layer claim 1 , and wherein the compressive layer is under a compressive stress of at least about 300 MPa.11. The alkali aluminosilicate glass of claim 1 , wherein the ion exchanged glass has a Vickers indentation crack initiation load of at least about 7 kgf.12. The alkali aluminosilicate glass of claim 11 , wherein the ion exchanged glass has a Vickers indentation crack initiation load of at least about 12 kgf.13. The alkali aluminosilicate glass of claim 1 , wherein the ...

3-d glass enclosures for electronic devices

A 3-D glass enclosure comprises a generally planar glass base member, an encircling glass side wall member connected to the base member, and a generally planar glass cover member connected to the side wall member to form a unitary glass enclosure, the base, sidewall and cover members being made by reforming softened glass sheet preforms and subjecting the reformed members to ion-exchange strengthening, thus providing strong transparent enclosures for electronic devices such as tablet computers, cellphones, media players and televisions.

Colored glass housing

There is provided a colored glass housing having characteristics suitable for a housing of an electronic device, that is, a light blocking property, high strength, and superior manufacturing cost. The colored glass housing includes glass whose absorbance at wavelength from 380 nm to 780 nm is 0.7 or more, suitably, whose absorption constant is 1 mm −1 or more, and is provided on an exterior of the electronic device. In order to obtain the above glass, it is preferable that, as a coloring component in the glass, at least one component selected from a group consisting of oxides of Co, Mn, Fe, Ni, Cu, Cr, V, and Bi amounting to 0.1% to 7% in terms of molar percentage on an oxide basis.

COLORED ALKALI ALUMINOSILICATE GLASS ARTICLES

A glass article including at least about 40 mol % SiOand, optionally, a colorant imparting a preselected color is disclosed. In general, the glass includes, in mol %, from about 40-70 SiO, 0-25 AlO, 0-10 BO; 5-35 NaO, 0-2.5 KO, 0-8.5 MgO, 0-2 ZnO, 0-10% POand 0-1.5 CaO. As a result of ion exchange, the glass includes a compressive stress (σ) at at least one surface and, optionally, a color. In one method, communicating a colored glass with an ion exchange bath imparts σwhile in another; communicating imparts σand a preselected color. In the former, a colorant is part of the glass batch while in the latter; it is part of the bath. In each, the colorant includes one or more metal containing dopants formulated to impart to a preselected color. Examples of one or more metal containing dopants include one or more transition and/or rare earth metals. 1. A colored glass formulated to be ion exchangeable comprising:a. one or more metal containing dopants formulated to impart a preselected color; [{'sub': 's', 'i. having at least one surface under a compressive stress (σ) comprising at least about 500 MPa;'}, {'sub': 's', 'ii. the at least one surface under the compressive stress (σ) exhibiting a depth of layer (DOL) comprising at least about 15 μm; and'}, 7. up to about 8.2 when measurement results obtained between about 200 nm-2500 nm are presented in CIELAB color space coordinates for an observer angle of 10° and a CIE illuminant A; or', '8. up to about 9.1 when measurement results obtained between about 200 nm-2500 nm are presented in CIELAB color space coordinates for an observer angle of 10° and a CIE illuminant F02; or', '9. up to about 8.4 when measurement results obtained between about 200 nm-2500 nm are presented in CIELAB color space coordinates for an observer angle of 10° and a CIE illuminant D65; or', '10. up to about 5.2 when measurement results obtained between about 360 nm-750 nm are presented in CIELAB color space coordinates for an observer angle of 10° ...

METHOD FOR MANUFACTURING TEMPERED-GLASS PANELS FOR ELECTRONIC DEVICES

A method for manufacturing tempered-glass panels for electronic devices is provided. The method includes pre-processing an original glass substrate so as to reduce weak portions that are formed in the original glass substrate when the original glass substrate is first tempered and then processed tempering the pre-processed original glass substrate and cutting the tempered pre-processed original glass substrate to produce a number of tempered-glass panels. The method can produce the tempered-glass panels from the original glass substrate, maintaining a certain level of production efficiency. 1. A method for manufacturing tempered-glass panels for electronic devices , the method comprising:pre-processing an original glass substrate so as to reduce weak portions that are formed in the original glass substrate when the original glass substrate is first tempered and then processed;tempering the pre-processed original glass substrate; andcutting the tempered pre-processed original glass substrate to produce a number of tempered-glass panels.2. The method of claim 1 , wherein the weak portions comprise:at least one of holes, edges, and straight sections equal to or less than a predetermined length.3. The method of claim 2 , wherein the pre-processing of the original glass substrate comprises at least one of the following:forming the holes in the original glass substrate;processing the original glass substrate so that the edges can be exposed to the outside; andprocessing the original glass substrate so that the straight sections can be exposed to the outside.4. The method of claim 3 , wherein the pre-processing of the original glass substrate further comprises:curving or chamfering the edges.5. The method of claim 2 , wherein the tempering the pre-processed original glass substrate comprises:tempering the at least one of holes, the edges, and the straight sections, which are exposed to the outside.6. The method of claim 1 , further comprising:forming decorations in the pre ...

MIRROR FOR CONCENTRATING SOLAR POWER DEVICES

A mirror for concentrating solar power devices, associable with a curved supporting panel, which comprises a flat and thin mirror-finished plate which is flexible, as a consequence of a tempering treatment, for complementary shaping, by inflection, with respect to the panel, which is adapted to support and keep the plate inflexed. 16-. (canceled)7. A method for manufacturing a mirror system for concentrating solar power devices , said method comprising:i) providing a flat and thin glass plate having a thickness between 0.6 and 1.8 mm;ii) subjecting said flat and thin glass plate to a tempering treatment, so as to define a surface region of said plate that is pre-tensioned, the surface region being a thickness between 20 and 100 microns in depth from a surface of said plate and then to a silvering treatment, to obtain a flat and thin mirror-finished plate which is flexible, as a consequence of said tempering treatment so that the tensions to which said surface region are subjected during elastic deformation are limited due to the thickness of said surface region;iii) providing a curved supporting panel adapted to support and keep the plate inflexed;iv) elastically deforming said plate until it assumes the shape of the curved supporting panel limiting;v) associating, for complementary shaping by inflection with respect to said panel, said flexible flat and thin mirror-finished plate with said curved supporting panel.8. The method according to claim 7 , wherein said plate is tempered chemically.9. The method according to claim 8 , wherein said plate is tempered thermally.10. The method according to claim 7 , wherein the surface region is pre-tensioned by replacing with potassium ions the sodium ions that are present in the glass of the plate.11. The method according to claim 10 , wherein said replacing is obtained by immersion in a bath of potassium salts at a temperature higher than 380° C. This application is a Division of application Ser. No. 12/601654, filed Nov. ...

APPLIANCE FASCIA AND MOUNTING THEREFORE

A thin lightweight glass fascia for appliances. The fascia may be a seamless shaped glass fascia for an appliance, such as a glass fascia that wraps around at least two opposing edges of an appliance. The glass fascia may seamlessly incorporate a display or control panel under the fascia. A mounting arrangement that facilitates quick fascia removal and replacement may be provided. The fascia may be a chemically-strengthened glass sheet having a thickness of less than 2.0 mm, and a near-surface region under a compressive stress, wherein the compressive stress (CS) at a surface of the first glass sheet is greater than 300 MPa and extends to a depth of layer of at least 20 micrometers. 137-. (canceled)38. An appliance with a thin glass fascia mounted on an outer surface of the appliance , the thin glass fascia comprising:a chemically-strengthened glass sheet having a thickness less than 2.0 mm and a near-surface region under a compressive stress, wherein the compressive stress (CS) at a surface of the first glass sheet is greater than about 300 MPa and the extends to a depth of layer of at least 20 μm.39. The appliance according to claim 38 , wherein the compressive stress (CS) at a surface of the glass sheet is greater than about 400 MPa.40. The appliance according to claim 39 , wherein the compressive stress (CS) at a surface of the glass sheet is greater than about 600 MPa.41. The appliance according to claim 38 , wherein a composition of the glass sheet includes at least one of (a) 6 wt. % aluminum oxide; and (b) one or more alkaline earth oxides claim 38 , such that a content of alkaline earth oxides is at least 5 wt. %.42. The appliance according to claim 38 , wherein the glass sheet has an area greater than 1 m.43. The appliance according to claim 38 , wherein at least a portion of the glass sheet is curved.44. The appliance according to claim 38 , wherein the glass sheet further comprises a substantially planar or curved central portion having opposing ...

STRENGTHENED GLASS BLOCK, TOUCH-SENSITIVE DISPLAY DEVICE AND OLED DISPLAY DEVICE

A strengthened glass block cut from a mother glass substrate is provided. The mother glass substrate is given a preliminary chemically strengthening treatment, the strengthened glass block has a preliminary strengthened surface area and a newly-born surface area, and the newly-born surface area is formed as a result of a machining or material removing treatment. A chemically strengthened layer formed as a result of a secondary chemically strengthening treatment is formed in at least the newly-born surface area. 1. A strengthened glass block cut from a mother glass substrate given a preliminary chemically strengthening treatment , the strengthened glass block having a preliminary strengthened surface area and a newly-born surface area , and the newly-born surface area being formed as a result of a machining or material removing treatment , wherein a chemically strengthened layer formed as a result of a secondary chemically strengthening treatment is formed in at least the newly-born surface area.2. The strengthened glass block as claimed in claim 1 , wherein the preliminary strengthened surface area is larger than the newly-born surface area.3. The strengthened glass block as claimed in claim 1 , wherein the machining or material removing treatment comprises at least one of cutting claim 1 , edging claim 1 , drilling claim 1 , chamfering claim 1 , and polishing.4. The strengthened glass block as claimed in claim 3 , wherein a plurality of etched notch structures having an arc-shaped or a tooth-shaped profile are formed in the newly-born surface area.5. The strengthened glass block as claimed in claim 1 , wherein a chemically strengthened layer is formed as a result of the preliminary chemically strengthening treatment and exists only in the preliminary strengthened surface area.6. The strengthened glass block as claimed in claim 1 , further comprising:a shielding layer formed in at least part of the preliminary strengthened surface area.7. The strengthened glass ...

GLASS SHEET

A glass sheet, the thickness of which is at most 2 mm, including a surface zone under compression and a central zone under tension, such that the depth at which the transition between compression and tension occurs is at least 100 micrometers, the ratio between the depth and the thickness being at least 0.1, the sheet additionally being such that the flexural stress at break in a “ring-on-tripod” test is at least 70 MPa, after Vickers indentation under a load of 60 N. 1. A glass sheet , the thickness of which is at most 2 mm , comprising a surface zone under compression and a central zone under tension , such that a depth at which the transition between compression and tension occurs is at least 100 micrometers , a ratio between said depth and said thickness being at least 0.1 , said sheet additionally being such that a flexural stress at break in a “ring-on-tripod” test is at least 70 MPa , after Vickers indentation under a load of 60 N.2. The glass sheet as claimed in claim 1 , wherein the surface zone under compression has been obtained by ion exchange.3. The glass sheet as claimed in claim 1 , the thickness of which is at most 1.1 mm and at least 0.25 mm.4. The glass sheet as claimed in claim 1 , wherein the depth at which the transition between compression and tension occurs is at least 200 micrometers and at most 500 micrometers.5. The glass sheet as claimed in claim 1 , wherein a profile of the stresses in the thickness of the glass sheet is such that the maximum compressive stress is at least 70 MPa claim 1 , a zone subjected to the maximum compressive stress being located at a non-zero distance from the surface of the glass sheet.6. The glass sheet as claimed in claim 1 , wherein a profile of the stresses in the thickness of the glass sheet is such that in a central zone occupying the third of the thickness of the glass claim 1 , the relative variation of the intensity of the tensile stress is at least 10%.7. The glass sheet as claimed in claim 5 , wherein ...

ENERGY SAVING GLASS AND A METHOD FOR MAKING ENERGY SAVING GLASS

The energy saving glass comprises a substantially mutually parallel first surface and second surface, and the glass mass of the energy saving glass contains a solar radiation energy absorbing agent. The solar radiation energy absorbing agent is present in a layer of the glass mass which is close to the first surface, in which layer the concentration of the radiation energy absorbing agent substantially decreases when proceeding from the first surface deeper into the glass mass, such that the absorbing agent is present at the depth of at least 0.1 micrometres and not more than 100 micrometres as measured from the first surface of the glass. In the method, a layer of particulates is grown on the first surface of the glass, which particulates include at least one element or compound of the elements and diffuse and/or dissolve into the surface layer of the glass. At least one element dissolving from the particulates modifies the surface layer of the glass such that the solar radiation energy absorbing layer is formed on the surface, in which layer the concentration of said at least one element substantially decreases from the surface of the glass deeper into the glass, such that the element is present at the depth of at least 0.1 micrometres and not more than 100 micrometres as measured from the surface of the glass. 112101103101111. An energy saving glass comprising a substantially mutually parallel first surface () and second surface () , in which energy saving glass the glass mass () contains a solar radiation energy absorbing agent , characterized in that the solar radiation energy absorbing agent in present in a layer () of the glass mass () which is close to the first surface () , in which layer the concentration of the radiation energy absorbing agent substantially decreases when proceeding from the first surface () deeper into the glass mass , such that the absorbing agent is present at the depth of at least 0.1 micrometres and not more than 100 micrometres as ...

LITHIUM ALUMINOSILICATE GLASS WITH HIGH MODULUS OF ELASTICITY, AND METHOD FOR PRODUCING SAME

A lithium aluminosilicate glass and a method for producing such lithium aluminosilicate glass are provided. The glass has a composition, in mol %, of: SiO60-70; AlO10-13; BO0.0-0.9; LiO 9.6-11.6; NaO 8.2-less than 10; KO 0.0-0.7; MgO 0.0-0.2; CaO 0.2-2.3; ZnO 0.0-0.4; ZrO1.3-2.6; PO0.0-0.5; FeO0.003-0.100; SnO0.0-0.3; and CeO0.004-0.200. Further, the composition complies with the following relations and conditions: (LiO+AlO)/(NaO+KO) greater than 2; LiO/(LiO+NaO+KO) greater than 0.47 and less than 0.70; CaO+FeO+ZnO+PO+BO+CeOgreater that 0.8 and less than 3, where at least four out of the six oxides are included. The glass exhibits a modulus of elasticity of at least 82 GPa and has a glass transition point below 540° C. and/or a working point below 1150° C. 114-. (canceled)16. The lithium aluminosilicate glass as claimed in claim 15 , wherein said lithium aluminosilicate glass is suitable for shaping by a float process.17. The lithium aluminosilicate glass as claimed in claim 16 , wherein said lithium aluminosilicate glass can be chemically and/or thermally tempered so that it has a flexural strength of at least 550 N/mm claim 16 , as measured with a double ring method according to EN 1288-5.18. The lithium aluminosilicate glass as claimed in claim 15 , further comprising a linear coefficient of thermal expansion αbetween 8.0*10Kand 9.0*10K.19. The lithium aluminosilicate glass as claimed in claim 15 , wherein at least two components from a group of refining components consisting of FeO claim 15 , CeO claim 15 , and SnOtogether account for at least 0.1 mol % of said composition.20. The lithium aluminosilicate glass as claimed in claim 19 , wherein said lithium aluminosilicate glass is free of TiOand/or MgO and/or AsOand/or SbOand/or VOand/or BiOand/or PbO claim 19 , except for technically or economically unavoidable residues in glass raw materials.21. The lithium aluminosilicate glass as claimed in claim 15 , wherein SnOis present in a content of not more than 0.5 wt ...

THIN LITHIUM-ALUMINOSILICATE GLASS FOR THREE DIMENSIONAL PRECISION MOLDING

A thin lithium-aluminosilicate glass is provided. The glass is suitable for three dimensional precision molding and suitable for toughening, wherein after toughening, the glass has a center tension smaller than 50 Mpa, a surface compressive stress of 600-1200 Mpa, and a bending strength of up to 500 MPa. The glass also has a transition point lower than 550° C. 1. A thin lithium-aluminosilicate glass for three dimensional precision molding , comprising:after toughening, a center tensile stress smaller than 50 Mpa, a surface compressive stress of 500-1200 Mpa, a bending strength of at least 500 MPa, and a glass transition point lower than 550° C.2. The thin lithium-aluminosilicate glass according to claim 1 , wherein claim 1 , the center tensile stress is smaller than 30 Mpa.3. The thin lithium-aluminosilicate glass according to claim 2 , wherein center tensile stress is smaller than 20 Mpa.4. The thin lithium-aluminosilicate glass according to claim 1 , wherein the surface compressive stress is 700-1200 Mpa.5. The thin lithium-aluminosilicate glass according to claim 4 , wherein the surface compressive stress is 800-1200 Mpa.6. The thin lithium-aluminosilicate glass according to claim 1 , wherein the bending strength is up to 600 MPa.7. The thin lithium-aluminosilicate glass according to claim 1 , wherein the glass transition point is lower than 530° C.8. The thin lithium-aluminosilicate glass according to claim 7 , wherein the glass transition point is lower than 520° C.9. Thin lithium-aluminosilicate glass according to claim 8 , wherein the glass transition point is lower than 510° C.11. The thin lithium-aluminosilicate glass according to claim 10 , wherein KO is less than 0.5 wt. %.12. The thin lithium-aluminosilicate glass to claim 11 , wherein KO less than 0.3 wt. %.13. The thin lithium-aluminosilicate glass according to claim 10 , wherein ZnO is less than 0.4 wt. %.14. The thin lithium-aluminosilicate glass according to claim 13 , wherein ZnO is less than 0.3 ...

REINFORCED PLATE GLASS AND METHOD FOR MANUFACTURING THE SAME

A method of manufacturing a reinforced plate glass by which glass surface strength is sufficiently increased, and a stable quality reinforced plate glass is manufactured at high production efficiency. The reinforced plate glass is formed of an inorganic oxide glass, and is provided with a compression stress layer by chemical reinforcement on plate surfaces opposed to each other in a plate thickness direction. Plate end faces have regions where a compression stress is formed and regions where no compression stress is formed. 19-. (canceled)10. A method of manufacturing a reinforced plate glass , comprising the steps of:{'sub': 2', '2', '3', '2', '2, 'making a palate glass made of an aluminosilicate glass comprising 50 to 80% of SiO, 5 to 25% of AlO, 3 to 25% of LiO+NaO, and 0 to 10% of CaO+MgO+ZnO+SrO+BaO, represented by percent by mass of an oxide conversion,'}forming a compression stress layer on plate surfaces of the plate glass by chemical reinforcement, the compression stress layer having a thickness of 100 μm or less, anddividing the plate glass chemically reinforced by scribe cleaving to obtain the reinforced plate glass which comprises a plate end face comprising a region where a compression stress is formed and a region where a compression stress is not formed11. The method of manufacturing a reinforced plate glass according to claim 10 , wherein a stress distribution in a plate thickness direction of the compression stress layer of the plate surface is limited in accordance with a compression stress function represented by a compression stress value of the plate surface claim 10 , the thickness of the compression stress layer claim 10 , and a thickness of the region where a compression stress is not formed.12. The method of manufacturing a reinforced plate glass according to claim 11 , wherein the compression stress function is obtained by dividing a product of the compression stress value and the thickness of the compression stress layer by the thickness ...

GLASS FOR CHEMICAL TEMPERING, CHEMICALLY TEMPERED GLASS, AND GLASS PLATE FOR DISPLAY DEVICE

To provide glass to be used for chemically tempered glass, of which the strength is less likely to be reduced even when indentations are formed thereon. Glass for chemical tempering, which comprises, as represented by mole percentage based on oxides, from 62 to 68% of SiO, from 6 to 12% of AlO, from 7 to 13% of MgO, from 9 to 17% of NaO, and from 0 to 7% of KO, wherein the difference obtained by subtracting the content of AlOfrom the total content of NaO and KO is less than 10%, and when ZrOis contained, its content is at most 0.8%. Chemically tempered glass obtained by chemically tempering such glass for chemical tempering. Such chemically tempered glass has a compressive stress layer formed on the glass surface, which has a thickness of at least 30 μm and a surface compressive stress of at least 550 MPa. 1. Glass for chemical tempering , which comprises , as represented by mole percentage based on oxides , from 62 to 68% of SiO , from 6 to 12% of AlO , from 7 to 13% of MgO , from 9 to 17% of NaO , and from 0 to 7% of KO , wherein the difference obtained by subtracting the content of AlOfrom the total content of NaO and KO is less than 10% , and when ZrOis contained , its content is at most 0.8%.2. The glass for chemical tempering according to claim 1 , which contains from 64 to 67% of SiO claim 1 , and from 6 to 7.5% of AlO claim 1 , wherein the total content of SiOand AlOis from 69 to 73%.3. Glass for chemical tempering claim 1 , which comprises claim 1 , as represented by mole percentage based on oxides claim 1 , from 62 to 66% of SiO claim 1 , from 6 to 12% of AlO claim 1 , from 7 to 13% of MgO claim 1 , from 9 to 17% of NaO claim 1 , and from 0 to 7% of KO claim 1 , wherein the difference obtained by subtracting the content of AlOfrom the total content of NaO and KO is less than 10% claim 1 , and when ZrOis contained claim 1 , its content is at most 0.8%.4. The glass for chemical tempering according to claim 3 , wherein the total content of SiOand AlOis more ...

METHOD OF MANUFACTURING GLASS SUBSTRATE AND INFORMATION RECORDING MEDIUM

In a method of manufacturing a glass substrate for an information recording medium including a step for chemically strengthening the glass substrate by contacting the glass substrate with chemical strengthening processing liquid containing chemical strengthening salt, concentration of Fe and Cr is 500 ppb or less in said chemical strengthening salt, respectively. The concentration may be detected by the use of an ICP (Inductively Coupled Plasma) emission spectrometry analyzing method or a fluorescent X-ray spectroscopy analyzing method. 1. A method of manufacturing a glass substrate for a magnetic disk , comprising the steps of:preparing a glass substrate;judging whether or not the amount of particles contained in a chemical strengthening salt itself is not greater than a predetermined reference value;reducing, if the predetermined reference value is exceeded, the amount of particles contained in said chemical strengthening salt itself to a level not greater than said predetermined reference value;preparing a chemical strengthening processing liquid by mixing said chemical strengthening salt containing the particles in an amount not greater than said predetermined reference value; andchemically strengthening said glass substrate by replacing a part of first ions contained in said glass substrate by second ions contained in said processing liquid and having an ion diameter larger than that of said first ions by contacting said glass substrate with said chemical strengthening processing liquid.2. A method as claimed in claim 1 , wherein said predetermined reference value is determined by preliminarily obtaining correlation between the amount of particles contained in said chemical strengthening salt itself and a glide height claim 1 , selecting claim 1 , with reference to the correlation claim 1 , a particular amount of particles corresponding to a desired glide height claim 1 , and setting the particular amount as said predetermined reference value.3. A method of ...

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, is supplied a salt inlet end of a long channeled containment vessel and the used molten salt is removed from a salt outlet end distal from the inlet end of the channel. Glass article is loaded into at least one cassette, the cassette is placed in the vessel containing the molten salt and is translated from the salt outlet end to the salt inlet end. Cassettes containing glass articles are continuously placed into the vessel at the salt outlet lend and are removed as they reach the salt inlet end. 1. A continuous ion-exchange system , the system comprising:an ion-exchange vessel, the ion-exchange vessel having an inlet end, the inlet end comprising a molten salt source, and an outlet end distal to the inlet end, the outlet end comprising a molten salt drain;a molten salt, the molten salt comprising a first salt having a first concentration and a second salt having a second concentration, wherein the first salt concentration and second salt concentration vary from the inlet end to the outlet end;a cassette disposable in the ion-exchange vessel, where in the cassette is capable of holding at least one glass article to be ion-exchanged;a translation element for translating the cassette from the outlet end to the inlet end of the ion-exchange vessel, andan agitation element to establish a flow of the molten salt counter-current to a direction in which the cassette is translated, the molten salt having a continuous concentration gradient from the salt inlet end to the salt outlet end of the vessel;wherein the cassette is adapted to hold the at least glass article such that a surface of the glass article is parallel to a direction of translation of the cassette from the inlet end to the outlet end.2. The system of claim 1 , wherein the molten salt flow rate from inlet end to outlet end is at least 0.006 m/hr.3. The system of claim 1 , ...

METHOD OF MANUFACTURING CHEMICALLY STRENGTHENED GLASS PLATE

[Subject] 1. A method of manufacturing a chemically strengthened glass plate by ion-exchanging a glass base plate to replace alkali metal ions A that are the main alkali metal ion component of the glass base plate with alkali metal ions B having a larger ionic radius than the alkali metal ions A at a surface of the glass base plate ,the unexchanged glass base plate made of a soda-lime glass,the method comprising:a first step of contacting the glass base plate with a first salt comprising the alkali metal ions A, the first salt comprising the alkali metal ions A at a ratio X, as expressed as a molar percentage of total alkali metal ions, of 90 to 100 mol %;a second step of contacting the glass plate with a second salt comprising the alkali metal ions B after the first step, the second salt comprising the alkali metal ions A at a ratio Y, as expressed as a molar percentage of the total alkali metal ions, of 0 to 10 mol %; anda third step of contacting the glass plate with a third salt comprising the alkali metal ions B after the second step, the third salt comprising the alkali metal ions B at a ratio Z, as expressed as a molar percentage of the total alkali metal ions, of 98 to 100 mol %.2. The method of manufacturing a chemically strengthened glass plate according to claim 1 ,{'sub': 2', '2', '2', '2', '3, 'wherein the soda-lime glass is substantially composed of 65 to 75% SiO, 5 to 20% NaO+KO, 2 to 15% CaO, 0 to 10% MgO, and 0 to 5% AlOon a mass basis.'}3. The method of manufacturing a chemically strengthened glass plate according to claim 1 ,wherein the chemically strengthened glass has a thickness of 0.03 to 3 mm.4. The method of manufacturing a chemically strengthened glass plate according to claim 1 ,wherein the chemically strengthened glass has a surface compressive stress of 600 to 900 MPa.5. The method of manufacturing a chemically strengthened glass plate according to claim 1 ,wherein the chemically strengthened glass has a compressive stress layer having a ...

Glass Articles With Low-Friction Coatings

Low-friction coatings and glass articles with low-friction coatings are disclosed. According to one embodiment, a coated glass article may include a glass body comprising a first surface and a low-friction coating positioned on at least a portion of the first surface of the glass body. The low-friction coating may include a polymer chemical composition. The coated glass article may be thermally stable at a temperature of at least about 260° C. for 30 minutes. A light transmission through the coated glass article may be greater than or equal to about 55% of a light transmission through an uncoated glass article for wavelengths from about 400 nm to about 700 nm. The low-friction coating may have a mass loss of less than about 5% of its mass when heated from a temperature of 150° C. to 350° C. at a ramp rate of about 10° C./minute.

ION EXCHANGED GLASSES VIA NON-ERROR FUNCTION COMPRESSIVE STRESS PROFILES

Glasses with compressive stress profiles that allow higher surface compression and deeper depth of layer (DOL) than is allowable in glasses with stress profiles that follow the complementary error function at a given level of stored tension. In some instances, a buried layer or local maximum of increased compression, which can alter the direction of cracking systems, is present within the depth of layer. Theses compressive stress profiles are achieved by a three step process that includes a first ion exchange step to create compressive stress and depth of layer that follows the complimentary error function, a heat treatment at a temperature below the strain point of the glass to partially relax the stresses in the glass and diffuse larger alkali ions to a greater depth, and a re-ion-exchange at short times to re-establish high compressive stress at the surface. 1. A glass having a surface and a thickness t , the glass comprising:{'sub': '1', 'a first region under a compressive stress, the first region extending from the surface to a depth of layer DOL in the glass, wherein the compressive stress CS has a maximum CSat the surface and varies with distance d from the surface according to a function other than a complementary error function; and'}a second region under a tensile stress CT, the second region extending from the depth of layer into the glass.2. The glass of claim 1 , wherein the first region comprises:{'sub': 1', '1, 'a. a first segment, the first segment extending from the surface to a first depth d, wherein the depth dis less than the depth of layer DOL, wherein the compressive stress CS in the first segment varies according to a first function; and'}{'sub': '1', 'b. a second segment, the second segment extending from the first depth dup to the depth of layer DOL, wherein the compressive stress CS in the second segment varies according to a second function, and wherein the first function is different than the second function.'}3. The glass of claim 2 , ...

GLASS WITH SURFACE AND CENTRAL REGIONS UNDER COMPRESSION

A glass article having an engineered stress profile. The central or core region of the glass is in compression and the surface or outer region of the glass is either under neutral stress or in compression. The outer surface region and the core region are separated by an intermediate region that is under tension. A flaw that penetrates the outer region in compression will propagate in the underlying tensile intermediate layer, but will not penetrate though the compressive core region of the glass. The compressive core region prevents flaws from penetrating through the thickness of the glass. 1. A glass article , the glass article comprising:a. an outer region extending from the surface to a depth of layer, wherein the outer region is under neutral stress or a first compressive stress;b. a core region under a second compressive stress; andc. an intermediate region disposed between the surface and the core region, wherein the intermediate region is under a tensile stress.2. (canceled)3. The glass article of claim 1 , wherein the outer region is under the first compressive stress.4. The glass article of claim 3 , wherein the depth of layer of the outer region is at least 5 μm.5. The glass article of claim 3 , wherein the first compressive stress is at least 500 MPa.6. The glass article of claim 3 , wherein the glass article has a laminate structure.7. The glass article of claim 6 , wherein:a. the core region comprises a first glass having a first coefficient of thermal expansion;b. the intermediate region comprises a second glass having a second coefficient of thermal expansion; andc. the outer region comprises a third glass having a third coefficient of expansion, and wherein the first coefficient of expansion and third coefficient of thermal expansion are less than the second coefficient of thermal expansion.8. The glass article of claim 6 , wherein:a. the core region comprises a core glass, the core glass comprising a first alkali metal ion;b. the intermediate region ...

HEAT TREATMENT FOR STRENGTHENING GLASSES

A method of making a strengthened glass article. The method includes altering the glass structure and subsequently creating a compressive layer extending from the surface of the glass to a depth of layer. In some embodiments, the structure is altered by heat treating the glass at a temperature that is less than the annealing point of the glass, and the compressive layer is formed by ion exchange. A strengthened glass article made by the method is also provided. 1. A method of making a glass article , the glass article having a surface that is under a compressive stress , the method comprising:a. heating the glass article at a first temperature for a time period, wherein the glass article has an annealing point and a fictive temperature that is greater than the annealing point, and wherein the first temperature is less than the annealing point; andb. ion exchanging the heated glass article at a second temperature to achieve a compressive stress in the surface to a depth of layer, wherein the first temperature is greater than the second temperature.2. The method of claim 1 , wherein the glass is an alkali aluminosilicate glass or an alkali aluminoborosilicate glass.3. The method of claim 2 , wherein the glass further comprises phosphorus.4. The method of claim 1 , wherein the first temperature is in a range from about 25° C. to about 100° C. below the annealing point of the glass article.5. The method of claim 1 , wherein the first temperature is between the annealing point and the 10poise temperature of the glass article.6. The method of claim 1 , wherein the time period ranges from about 0.5 hour to about 4 hours.7. The method of claim 1 , wherein the compressive stress is at least 800 MPa.8. The method of claim 7 , wherein the step of ion exchanging the glass article comprises ion exchanging the glass article for less than about five hours in a molten salt bath comprising at least about 90% KNOand less than about 10 wt % NaNOat a temperature that is greater than ...

PROCESS FOR PRODUCING CHEMICALLY TEMPERED GLASS

To provide a process for producing a chemically tempered glass whereby it is possible to increase the surface compressive stress. A process for producing a chemically tempered glass, which comprises holding a glass at a temperature of at least the strain point minus 40° C. and at most the strain point plus 70° C. for at least 30 minutes for heat treatment, and thereafter, immersing it in a molten salt for ion exchange without allowing the temperature to exceed the strain point plus 70° C. 1. A process for producing a chemically tempered glass , which comprises holding a glass at a temperature of at least the strain point minus 40° C. and at most the strain point plus 70° C. for at least 30 minutes for heat treatment , and thereafter , immersing it in a molten salt for ion exchange without allowing the temperature to exceed the strain point plus 70° C.2. The process for producing a chemically tempered glass according to claim 1 , wherein in the heat treatment claim 1 , the glass is held at a temperature of at least the strain point minus 30° C. and at most the strain point plus 50° C. claim 1 , and after the heat treatment claim 1 , the glass is immersed in a molten salt for ion exchange without allowing the temperature to exceed the strain point plus 50° C.3. The process for producing a chemically tempered glass according to claim 1 , wherein the surface compressive stress of the chemically tempered glass is at least 550 MPa.4. The process for producing a chemically tempered glass according to claim 1 , wherein the glass is a glass plate produced by a downdraw process or a float process claim 1 , or one obtained by processing such a glass plate.5. The process for producing a chemically tempered glass according to claim 1 , wherein the thickness of the chemically tempered glass is at most 1.2 mm.6. The process for producing a chemically tempered glass according to claim 1 , wherein the chemically tempered glass is one to be used for a chassis or a cover glass for a ...

METHOD OF MANUFACTURING MAGNETIC-DISK GLASS SUBSTRATE AND METHOD OF MANUFACTURING MAGNETIC DISK

A process for producing a glass substrate for magnetic disk through chemical strengthening operation, in which the distribution of compressive stress is uniformed at a surface layer portion. The chemical strengthening operation includes the first step of bringing the glass substrate into contact with a first treatment solution (chemical strengthening treatment solution) containing first ions with an ionic radius larger than those of ions within the glass substrate and either the second and subsequent steps of bringing the platy glass into contact with treatment solutions containing second and subsequent bivalent ions, or the second and subsequent steps of bringing the glass substrate into contact with second and subsequent chemical strengthening treatment solutions containing second and subsequent ions exhibiting an ion exchange rate with ions within the glass substrate greater than that of the first ions to thereby decelerate the ion exchange. 1. A method of manufacturing a magnetic-disk glass substrate , the method including a chemical strengthening process of chemically strengthening the glass substrate , wherein:the chemical strengthening process comprises at least two steps;a first step brings the glass substrate into contact with a chemical strengthening treatment solution containing first ions having an ionic radius larger than an ionic radius of ions contained in the glass substrate, thereby causing ion exchange to occur; anda second or subsequent step brings the glass substrate into contact with a treatment solution containing second or subsequent ions being bivalent ions.2. The method of manufacturing the magnetic-disk glass substrate according to claim 1 , wherein:the second or subsequent ions are any one of Pb2+, Cd2+, Zn2+, Hg2+, Ca2+, Sr2+, and Ba2+.3. The method of manufacturing of the magnetic-disk glass substrate according to claim 1 , wherein:a maximum value of fine waviness of a main surface of the glass substrate is less than 5 nm in a ...

WHITE, OPAQUE, ß-SPODUMENE/RUTILE GLASS-CERAMICS; ARTICLES COMPRISING THE SAME; AND METHODS FOR MAKING THE SAME

Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit β-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 62-75 SiO 2 ; 10.5-17 Al 2 O 3 ; 5-13 Li 2 O; 0-4 ZnO; 0-8 MgO; 2-5 TiO 2 ; 0-4 B 2 O 3 ; 0-5 Na 2 O; 0-4 K 2 O; 0-2 ZrO 2 ; 0-7 P 2 O 5 ; 0-0.3 Fe 2 O 3 ; 0-2 MnOx; and 0.05-0.2 SnO 2 . Additionally, these glasses and glass-ceramics exhibit the following criteria: a. a ratio: [ Li 2  O + Na 2  O + K 2  O + MgO + ZnO _ ]  [ Al 2  O 3 + B 2  O 3 ] between 0.7 to 1.5; b. a ratio: [ TiO 2 + SnO 2 _ ]  [ SiO 2 + B 2  O 3 ] greater than 0.04. Furthermore, the glass-ceramics exhibit an opacity≧about 85% over the wavelength range of 400-700 nm for an about 0.8 mm thickness and colors an observer angle of 10° and a CIE illuminant F02 determined with specular reflectance included of a* between −3 and +3, b* between −6 and +6, and L* between 88 and 97.

Glass for chemical tempering and glass plate for display device

To provide glass to be used for chemically tempered glass which is hardly broken even when flawed. Glass for chemical tempering, which comprises, as represented by mole percentage based on the following oxides, from 65 to 85% of SiO 2 , from 3 to 15% of Al 2 O 3 , from 5 to 15% of Na 2 O, from 0 and less than 2% of K 2 O, from 0 to 15% of MgO and from 0 to 1% of ZrO 2 , and has a total content Si0 2 +Al 2 O 3 of SiO 2 and Al 2 O 3 of at most 88%.

HIGH-STRENGTH ALKALI-ALUMINOSILICATE GLASS

A high-strength alkali-aluminosilicate glass, characterized by excellent meltability, fineability. and processibility, exhibits the following formula: SiO60.5 to 69.0 weight percent AlO7.0 to 11.8 weight percent BO0 to 4.0 weight percent MgO 2.0 to 8.5 weight percent CaO 0 to 4.0 weight percent ZnO 0 to 5.0 weight percent ZrO0 to 3.0 weight percent NaO 15.0 to 17.5 weight percent KO 0 to 2.7 weight percent LiO 0 to 2.0 weight percent and from 0 to 1.5 weight percent of a fining agents such as AsO, SbOCeO, SnO, Cl, F, (SO) and combinations thereof. The glass allows for adequate conditions for an alkali ion exchange treatment in a short time period (4 to 8 hours) and can also be produced according to the established, continuous, vertically downward directed drawing process such as the overflow down-draw method or the fusion method, the die slot or the slot down-draw method, or combinations thereof. The viscosity temperature profile of these glasses allows the use of conventional fining agents in combination at the lowest amounts possible and additionally allows the production of glasses that are free of or contain only small amounts of either or both of antimony oxide and arsenic oxide. 1. A high-strength alkali-aluminosilicate glass comprising:{'sub': '2', 'from 60.5 to 69.0 weight percent of SiO,'}{'sub': 2', '3, 'from 7.0 to 11.8 weight percent of AlO,'}{'sub': 2', '3, 'from 0 to 4.0 weight percent of BO,'}from 2.0 to 8.5 weight percent of MgO,from 0 to 4.0 weight percent of CaO,from 0 to 5.0 weight percent ZnO,{'sub': '2', 'from 0 to 3.0 weight percent of ZrO,'}{'sub': '2', 'from 15.0 to 17.5 weight percent of NaO,'}{'sub': '2', 'from 0 to 2.7 weight percent of KO,'}{'sub': '2', 'from 0 to 2.0 weight percent of LiO, and'}{'sub': 2', '3', '2', '3', '2', '2', '4, 'sup': −', '−', '2−, 'from 0 to 1.5 weight percent of a fining agent selected from AsO, SbO, CeO, SnO, Cl, F, SO, and combinations thereof.'}2. The high-strength alkali-aluminosilicate glass according to ...

Methods of separating strengthened glass sheets by mechanical scribing

A method of separating a strengthened glass sheet includes positioning a serrated scribing wheel at a position spaced apart from a first edge of the glass sheet and offset below a top surface of the glass sheet, where the glass sheet comprises a surface compression layer of layer depth DOL and a central region. The method also includes translating the serrated scribing wheel in a first direction at an initiation speed such that the serrated scribing wheel forms a crack initiation site comprising surface indentations extending into the surface compression layer, accelerating the serrated scribing wheel in the first direction from the initiation speed to a scoring speed to scribe a score line extending into the glass sheet to a median crack depth greater than DOL, and stopping the serrated scribing wheel in the first direction before the score line reaches a second edge of the glass sheet.

Antireflection film, method for producing antireflection film, polarizer and image display device

The claimed invention provides an antireflection film including a light-transmitting substrate, a hard coat layer, and a low-refractive-index layer, the hard coat layer and the low-refractive-index layer being formed on the light-transmitting substrate, the low-refractive-index layer including a (meth)acrylic resin, hollow silica particles, reactive silica particles, and two kinds of antifouling agents, the hollow silica particles having an average particle size of 40 to 80 nm and a blending ratio to the (meth)acrylic resin, represented by a ratio: Amount of hollow silica particles/Amount of (meth)acrylic resin, of 0.9 to 1.4, the amount of the reactive silica particles being 5 to 60 parts by mass based on 100 parts by mass of the (meth) acrylic resin, the antifouling agents including an antifouling agent that contains a fluorine compound and an antifouling agent that contains a fluoro-silicone compound.

Glass compositions with improved chemical and mechanical durability

The embodiments described herein relate to chemically and mechanically durable glass compositions and glass articles formed from the same. In another embodiment, a glass composition may include from about 70 mol. % to about 80 mol. % SiO 2 ; from about 3 mol. % to about 13 mol. % alkaline earth oxide; X mol. % Al 2 O 3 ; and Y mol. % alkali oxide. The alkali oxide may include Na 2 O in an amount greater than about 8 mol. %. A ratio of Y:X may be greater than 1 and the glass composition may be free of boron and compounds of boron. In some embodiments, the glass composition may also be free of phosphorous and compounds of phosphorous. Glass articles formed from the glass composition may have at least a class S3 acid resistance according to DIN 12116, at least a class A2 base resistance according to ISO 695, and a type HGA1 hydrolytic resistance according to ISO 720.

GLASS COMPOSITION SUITABLE FOR CHEMICAL STRENGTHENING AND CHEMICALLY STRENGTHENED GLASS ARTICLE

Provided is a glass composition suitable for production using large-scale sheet glass mass production facilities by the float process or the like, having high heat resistance, and suitable for chemical strengthening. Specifically, provided is a glass composition containing, in mass %: 60 to 66% SiO; 10 to 16% AlO; 0 to 1% BO; 3 to 10% MgO; 0 to 1% CaO; 1 to 9% SrO; O to 4% BaO; 0 to 2% ZnO; 0 to 1% LiO; 10 to 20% NaO; 0 to 5% KO; O to 2% TiO; 0 to 0.1% ZrO; and 0 to 2% total iron oxide in terms of FeO. In this glass composition, a total content of MgO, CaO, SrO, and BaO is in a range of 10 to 20%, a total content of LiO, NaO, and KO is in a range of 14 to 20%, and a content of SrO is higher than a content of CaO. 1. A glass composition comprising , in mass %:{'sub': '2', '60 to 66% SiO;'}{'sub': 2', '3, '10 to 16% AlO;'}{'sub': 2', '3, '0 to 1% BO;'}3 to 10% MgO;0 to 1% CaO;1 to 9% SrO;0 to 4% BaO;0 to 2% ZnO;{'sub': '2', '0 to 1% LiO;'}{'sub': '2', '10 to 20% NaO;'}{'sub': '2', '0 to 5% KO;'}{'sub': '2', '0 to 2% TiO;'}{'sub': '2', '0 to 0.1% ZrO; and'}{'sub': 2', '3, '0 to 2% total iron oxide in terms of FeO, wherein'}a total content of MgO, CaO, SrO, and BaO is in a range of 10 to 20%,{'sub': 2', '2', '2, 'a total content of LiO, NaO, and KO is in a range of 14 to 20%, and'}a content of SrO is higher than a content of CaO.2. The glass composition according to claim 1 , wherein the content of CaO is 0.9 mass % or less.3. The glass composition according to claim 1 , wherein a content of MgO is 4.8 mass % or more.4. The glass composition according to claim 1 , wherein a difference obtained by subtracting the content of CaO from the content of SrO is at least 1.5 mass %.5. The glass composition according to claim 1 , wherein the content of SrO is 4 mass % or more.6. The glass composition according to claim 5 , wherein the content of SrO is more than 4.5 mass %.7. The glass composition according to claim 5 , wherein a content of BaO is 1 mass % or less.8. The glass ...

Method and apparatus for forming a writable erasable area on an object

A method of forming a writable erasable area on an object includes selecting a glass sheet having a front surface and a back surface, where the front surface is opposed to and parallel to the back surface. An area of the object where the writable erasable area is to be located is selected. The selected area has a select non-flat shape. The shape of the glass sheet is conformed to the select non-flat shape. The glass sheet is then mounted on the object such that the glass sheet is located at the selected area of the object and conforms in shape to the selected area of the object.

GLASS FOR CHEMICAL STRENGTHENING AND CHEMICAL STRENGTHENED GLASS

Glass for chemical strengthening, comprising 0.001% to 5% of Se in terms of molar percentage as a coloring component in the glass, wherein the glass has a property configured to provide an absolute value of Δa*m with 1.8 or less, the absolute value of Δa*m being a difference Δa*m between a value of chromaticity a* of reflected light by a D65 light source and a value of chromaticity a* of reflected light by an F2 light source, in a L*a*b* color system, the difference being expressed by the following expression (1), 1. Glass for chemical strengthening , comprising 0.001% to 5% of Se in terms of molar percentage as a coloring component in the glass , {'br': None, 'i': a*m=a*', 'D', 'a*', 'F, 'Δvalue(65 light source)−value(2 light source) \u2003\u2003(1).'}, 'wherein the glass has a property configured to provide an absolute value of Δa*m with 1.8 or less, the absolute value of Δa*m being a difference Δa*m between a value of chromaticity a* of reflected light by a D65 light source and a value of chromaticity a* of reflected light by an F2 light source, in a L*a*b* color system, the difference being expressed by the following expression (1),'}2. The glass for chemical strengthening according to claim 1 ,wherein the glass contains the Se in an amount of 0.05% to 5% in terms of molar percentage.3. The glass for chemical strengthening according to claim 1 , {'br': None, 'i': b*m=b*', 'D', 'b*', 'F, 'Δvalue(65 light source)−value(2 light source) \u2003\u2003(2).'}, 'wherein the glass has a property configured to provide an absolute value of Δb*m with 1.8 or less, the absolute value of Δb*m being a difference Δb*m between a value of chromaticity b* of the reflected light by the D65 light source and a value of chromaticity b* of the reflected light by the F2 light source, in the L*a*b* color system, the difference being expressed by the following expression (2),'}51. The glass for chemical strengthening according to claim claim 1 ,wherein the glass has a property configured to ...

CHEMICALLY STRENGTHENED GLASS FOR DISPLAY DEVICE

The present invention relates to a chemically strengthened glass for a display device, having a visible light transmittance Tva of 50% or more and less than 91% at a thickness of 1 mm using A light source, and an excitation purity Pe of less than 0.5% at a thickness of 1 mm. 1. A chemically strengthened glass for a display device , having a visible light transmittance Tva of 50% or more and less than 90% at a thickness of 1 mm using A light source , and an excitation purity Pe of less than 0.5% at a thickness of 1 mm.2. A chemically strengthened glass for a display device , having a visible light transmittance Tva of 50% or more and less than 91% at a thickness of 1 mm using A light source , and an excitation purity Pe of 0.25% or less at a thickness of 1 mm.3. The chemically strengthened glass for a display device according to claim 1 , which contains claim 1 , in terms of oxides claim 1 , 0.03% by mass or more of FeO claim 1 , 0.005% by mass or more in total of one or more components selected from the group consisting of TiO claim 1 , MnO claim 1 , VO claim 1 , NiO claim 1 , CoO claim 1 , and CrO claim 1 , and 0.001% by mass or more in total of two or more components selected from the same group.4. The chemically strengthened glass for a display device according to claim 2 , which contains claim 2 , in terms of oxides claim 2 , 0.03% by mass or more of FeO claim 2 , 0.005% by mass or more in total of one or more components selected from the group consisting of TiO claim 2 , MnO claim 2 , VO claim 2 , NiO claim 2 , CoO claim 2 , and CrO claim 2 , and 0.001% by mass or more in total of two or more components selected from the same group.5. A chemically strengthened glass for a display device claim 2 , having a visible light transmittance Tva of less than 91% at a thickness of 1 mm using A light source claim 2 , an excitation purity Pe of less than 0.5% at a thickness of 1 mm claim 2 , and (92-Tva)/Pe of 5.8 or more.6. The chemically strengthened glass for a display ...

GRADED FLUORESCENT MATERIAL

Some embodiments in the present disclosure generally relate to fluorescent structures such as fluorescent glass, fluorescent substrates, and/or light emitting devices, which can include a gradient of fluorescent molecules across the structure, substrate, and/or light emitting device. In some embodiments, the fluorescent glass, fluorescent substrates, and/or light emitting devices can be porous and include at least one fluorescent molecule within the one or more pore. In some embodiments, this can allow for the creation of a gradient fluorescent material throughout the material. 1. A graded fluorescent glass comprising: silica; and', 'a gradient of fluorescent molecules, wherein the gradient of fluorescent molecules comprises a first concentration of fluorescent molecules at the first surface, and a second concentration of fluorescent molecules at the second surface., 'a silica structure comprising a first surface and a second surface, and wherein the silica structure comprises'}2. The graded fluorescent glass of claim 1 , wherein a concentration of fluorescent molecules is about 50 ppm to about 10 claim 1 ,000 ppm.3. The graded fluorescent glass of claim 2 , wherein the gradient of fluorescent molecules comprises an approximately linear change in concentration from the first surface to the second surface.4. A light-emitting apparatus comprising:at least one light source; and silica;', 'at least a first pore within the silica and a second pore within the silica; and', 'at least a first fluorescent molecule within the first pore and at least two or more second fluorescent molecules within the second pore., 'a fluorescent silica glass, wherein the fluorescent silica glass comprises5. The light-emitting apparatus of claim 4 , wherein: the first fluorescent molecule absorbs radiation at a first wavelength of light claim 4 , the second fluorescent molecule absorbs radiation at a second wavelength of light claim 4 , and the first wavelength and the second wavelength are ...

GLASS SUBSTRATE FOR MAGNETIC DISK AND METHOD FOR MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK

A method for manufacturing a glass substrate for magnetic disk is provided. The method includes a forming process of press-forming a lump of molten glass using a pair of dies, wherein in the forming process, the cooling rate of the molten glass during pressing is controlled so that a first compressive stress layer is formed on a pair of principal faces of a glass blank that is press formed, and the method includes a chemically strengthening process for forming a second compressive stress layer on a pair of principal faces of a glass substrate formed using the glass blank after the forming process. 1. A method for manufacturing a glass substrate for magnetic disk , the method comprising:a forming process of press-forming a lump of molten glass using a pair of dies, during which the cooling rate of the molten glass during pressing is controlled so that a first compressive stress layer is formed on each of a pair of principal faces of a glass blank that is press formed; anda chemically strengthening process for forming a second compressive stress layer on each of a pair of principal faces of a glass substrate formed using the glass blank after the forming process.2. The method for manufacturing a glass substrate for magnetic disk according to claim 1 , wherein in the forming process claim 1 , the falling lump of molten glass is press-formed using the pair of dies from directions claim 1 , each direction being orthogonal to the falling direction.3. The method for manufacturing a glass substrate for magnetic disk according to claim 1 , wherein in the forming process claim 1 , press forming is performed so that the temperature of the press forming surface of the pair of dies is substantially identical.4. The method for manufacturing a glass substrate for magnetic disk according to claim 1 , wherein the temperature of the pair of dies is kept lower than the glass transition point (Tg) of the molten glass during a period of time from when the glass blank contacts the pair ...

Glass articles with high flexural strength and method of making

A strengthened glass article has a chemically-etched edge and a compressive stress layer formed in a surface region thereof. The compressive stress layer has a compressive stress and a depth of layer. A product of the compressive stress and depth of layer is greater than 21,000 μm-MPa. A method of making the strengthened glass article includes creating the compressive stress layer in a glass sheet, separating the glass article from the glass sheet, and chemically etching at least one edge of the glass article.

TRANSPARENT LAMINATE WHICH INHIBITS PUNCTURE BY PROJECTILES

A transparent laminate is provided that includes at least one chemically prestressed pane having a thickness, a compressive stress (CS) of a surface layer, a thickness of the prestressed surface layer and a tensile stress (CT) of an interior portion. The tensile stress (CT) is greater than 0 and is less than the compressive stress divided by 50. 1. A transparent laminate comprising:at least one chemically prestressed pane, where the at least one chemically prestressed pane has a thickness, a compressive stress (CS) of a prestressed surface layer, a thickness of the prestressed surface layer, and a tensile stress (CT) in an interior, wherein that the tensile stress (CT) is greater than 0 and less than the compressive stress (CS) divided by 50.2. The transparent laminate according to claim 1 , wherein the tensile stress (CT) is less than the compressive stress (CS) divided by 100.3. The transparent laminate according to claim 1 , wherein the tensile stress (CT) is less than the compressive stress (CS) divided by 150.4. The transparent laminate according to claim 1 , wherein the tensile stress (CT) is more than 1 MPa.5. The transparent laminate according to claim 1 , wherein the tensile stress (CT) is more than 2 MPa.6. The transparent laminate according to claim 1 , wherein the at least one chemically prestressed pane has a compressive stress (CS) of 400 MPa or more.7. The transparent laminate according to claim 1 , wherein the at least one chemically prestressed pane has a compressive stress (CS) of 700 MPa or more.8. The transparent laminate according to claim 1 , wherein the at least one chemically prestressed pane has a compressive stress (CS) of 900 MPa or more.9. The transparent laminate according to claim 1 , wherein the thickness of at least one chemically prestressed pane is 3 mm or more.10. The transparent laminate according to claim 1 , wherein the thickness of at least one chemically prestressed pane is 6 mm or more.11. The transparent laminate according ...

COATED, ANTIMICROBIAL, CHEMICALLY STRENGTHENED GLASS AND METHOD OF MAKING

The disclosure is directed to a chemically strengthened glass having antimicrobial properties and to a method of making such glass. In particular, the disclosure is directed to a chemically strengthened glass with antimicrobial properties and with a low surface energy coating on the glass that does not interfere with the antimicrobial properties of the glass. The antimicrobial has an Ag ion concentration on the surface in the range of greater than zero to 0.047 μg/cm. The glass has particular applications as antimicrobial shelving, table tops and other applications in hospitals, laboratories and other institutions handling biological substances, where color in the glass is not a consideration. 1. An antimicrobial , chemically strengthened glass comprising:a glass article;a compressive stress layer in the glass article extending to a first selected depth in the glass article; and{'sup': '+1', 'an antimicrobial Ag+ region extending from the surface of the glass article to a second selected depth in the glass article, the Ag+ region having a plurality of Agions,'}{'sup': +1', '2, 'wherein the compressive stress in the compressive stress layer is at least 250 MPa, and the concentration of the plurality of Agions on the surface of the glass article is in the range of greater than zero to less than or equal to 0.047 μg/cm.'}2. The antimicrobial claim 1 , chemically strengthened glass according to claim 1 , wherein the glass article further comprises a low surface energy coating on the surface of the glass article that allows water molecules to contact the plurality of Agions on the surface of the glass.3. The antimicrobial claim 1 , chemically strengthened glass according to claim 1 , wherein the surface of the glass article exhibits a Log Reduction value of greater than 1 for an antimicrobial test incubation of an hour for each of at least two microbial species.4. The antimicrobial claim 1 , chemically strengthened glass according to claim 1 , wherein the surface of the ...

Exposed Glass Article with Inner Recessed Area for Portable Electronic Device Housing

Transparent articles for use as outer surfaces of electronic devices and methods therefor are disclosed. A transparent cover can be provided over a display of portable electronic device to provide a protective outer cover over the display. The transparent cover can include material to mark, mask or color a portion of the transparent cover, such portion thereupon becoming opaque. The material can be provided in a recessed portion of an inner surface of the transparent cover, such portion being a portion of the transparent cover that is not over a usable portion of the display. The electronic device can, for example, be a portable electronic device. 1. A method for producing a glass article having an opaque border region , the method comprising:obtaining a glass article for use as an outer surface for a portable electronic device;physically manipulating a peripheral region of a backside of the glass article; andapplying at least one layer of material to the manipulated peripheral region of the backside of the glass article.2. A method as recited in claim 1 , wherein the glass article is a cover glass for the outer surface of at least one side of the portable electronic device.3. A method as recited in claim 1 , wherein the glass article is substantially transparent claim 1 , and wherein the at least one layer of material at the manipulated peripheral region of the backside of the glass sheet renders the manipulated peripheral region of the glass sheet opaque.4. A method as recited in claim 1 , wherein the glass article is clear claim 1 , and wherein the at least one layer of material applied at the manipulated peripheral region of the backside of the glass sheet renders the manipulated peripheral region of the backside of the glass sheet colored.5. A method as recited in claim 1 , wherein the at least one layer of material comprises at least one layer of colored ink or paint.6. A method as recited in claim 1 , wherein the applying of the at least one layer of material ...

ANTIMICROBIAL ACTION OF COPPER IN GLASS

The disclosure is directed to glass compositions that incorporate copper into an otherwise homogeneous glass and to a method for making such glass. This incorporation of the copper into the glass composition imparts significant antimicrobial activity to the glass. A method of making a copper-containing glass article comprises: batching a glass batch comprising: 40-85 SiO; 10-40 BO; 1-19 AlO; 0.1-20 CuO or a selected salt of Cu that is convertible into CuO during melting; 0-20 MO, wherein M is Li, Na, K, or combinations thereof; 0-25 RO, wherein R is Ca, Sr, Mg, or combinations thereof; and 0-20 ZnO. melting the batch to form a melted glass; and forming the melted glass to form the copper-containing glass article having antimicrobial properties. 124-. (canceled)25. A glass article comprising copper selected from the group consisting of Cu ions , metallic copper , colloidal copper , copper nanoparticles , and combinations thereof dispersed throughout the glass and at a surface of the glass; and the glass having antimicrobial properties.26. The article according to claim 25 , wherein the copper is in a reduced state.27. The article according to claim 26 , wherein the reduced copper is at a depth of in the range of from 2 μm to 3 μm from the surface of the glass.28. The article according to claim 26 , having a log reduction ≧1.29. The article according to claim 25 , wherein the glass is a strengthened glass.30. The article according to claim 25 , wherein the glass as batched comprises 0.1 mole %-20 mole % copper.31. The article according to claim 25 , wherein the glass as batched comprises 10 mole %-40 mole % BO.32. The article according to claim 25 , wherein the glass as batched comprises a BO/AlOratio greater than 1.33. The article according to claim 25 , wherein the glass as batched has an R-value of less than 1.34. The article according to claim 25 , wherein the glass comprises copper nanoparticles and wherein the nanoparticles are adhered to the surface.35. The ...

GLASS-CERAMIC(S); ASSOCIATED FORMABLE AND/OR COLOR-TUNABLE, CRYSTALLIZABLE GLASS(ES); AND ASSOCIATED PROCESS(ES)

Disclosed herein are one or more of formable and/or color-tunable, crystallizable glasses; formed and/or color-tuned glass-ceramics; IXable, formed and/or color-tuned glass-ceramics; IX, formed and/or color-tuned glass-ceramics; a machine or equipment including a formed and/or color-tuned glass-ceramic; a machine or equipment including an IXable, formed and/or color-tuned glass-ceramics; a machine or equipment including an IX, formed and/or color-tuned glass-ceramics; one or more processes for making formable, crystallizable glasses crystallizable; one or more processes for making formable and/or color-tunable, crystallizable glasses; one or more processes for making formed and/or color-tuned glass-ceramics; one or more processes for making IXable, formed and/or color-tuned glass-ceramics; one or more processes for making IX, formed and/or color-tuned glass-ceramics; and one or more processes for using any one of formable and/or color-tunable, crystallizable glasses; formed and/or color-tuned glass-ceramics; IXable, formed and/or color-tuned glass-ceramics; and/or IX, formed and/or color-tuned glass-ceramics. 1. A glass-ceramic comprising:a. less than about 20 wt % of one or more crystalline phases comprising one or more oxides; and [{'sub': '2', 'a. about 50-76 SiO;'}, {'sub': 2', '3, 'b. about 4-25 AlO;'}, {'sub': 2', '5', '2', '3, 'c. about 0-14 PO+BO;'}, {'sub': '2', 'd. about 0-33 RO;'}, 'e. about 0-5 of one or more nucleating agents; and', 'f. optionally, about 0-20 RO., 'b. a composition comprising on an oxide basis in mol %2. A glass-ceramic according to claim 1 , the composition further comprises on an oxide basis in mol % about 0-20 RO claim 1 , and optionally:{'sub': 2', '2', '3, 'a. about −4 to about 10 RO+RO—AlO; or'}{'sub': 2', '2', '3, 'b. about −8 to about 8 RO—AlO; or'}{'sub': 2', '2', '3', '2', '2', '3, 'c. about −4 to about 10 RO+RO—AlOand about −8 to about 8 RO—AlO.'}3. A glass-ceramic according to claim 2 , wherein:{'sub': 2', '2', '2', '2', '2 ...

PATTERNED CURVIFORM SURFACE OF GLASS AND METHOD FOR MANUFACTURE THE SAME

A patterned curviform surface of glass includes a glass body having a smooth surface. The smooth surface has a plurality of compressive stress area, and the plurality of compressive stress area forms a predetermined pattern. Compressive stress retained in the compressive stress area is lager than 50 Mpa so that the plurality of compressive stress area will form a patterned curviform surface based on the predetermined pattern. A method for manufacturing the patterned curviform surface of glass includes forming a mask onto the smooth surface of surface roughness lower than 0.12 μm. The mask includes a plurality of hollow, and the plurality of hollow forms a predetermined pattern. The smooth surface is processed by a chemical ion tempering process to form a plurality of compressive stress area retaining compressive stress within the hollow of the mask. By removing the mask and cleaning the smooth surface, a curviform surface opposite to the predetermined pattern is formed to the smooth surface. 1. A patterned curviform surface of glass comprising a smooth surface of a glass body; the smooth surface having a plurality of compressive stress area; the plurality of compressive stress area forming a predetermined pattern; compressive stress retained in the compressive stress area being lager than 50 Mpa so that the plurality of compressive stress area will slight protrusion by the strain and a patterned curviform surface is formed.2. The patterned curviform surface of glass as claimed in claim 1 , wherein the glass body is one of soda-lime glass or aluminosilcate glass.3. The patterned curviform surface of glass as claimed in claim 1 , wherein the surface roughness of the smooth surface is lower than 0.12 μm.4. The patterned curviform surface of glass as claimed in claim 1 , wherein the smooth surface is one of a flat claim 1 , arc claim 1 , or spherical surface.5. The patterned curviform surface of glass as claimed in claim 1 , wherein the glass body is a glass plate ...

JIG FOR LOADING PLATE GLASS OF TEMPERED GLASS MANUFACTURING APPARATUS

A jig for loading plate glass of a tempered glass manufacturing apparatus. The present invention includes, inside of a jig () for holding plate glass (), a width control means () and a height control means (), which can vary horizontal and vertical widths according to a plate glass () standard, thereby enabling the plate glass to be stably loaded with one jig () irrespective of a change in the plate glass () standard when the plate glass () requiring tempering needs to be transferred in a tempered glass manufacturing apparatus capable of chemical strengthening. 1101. A jig for loading plate glass which is used to load plate glass in a tempered glass manufacturing apparatus and which has a rectangular parallelepiped frame structure formed of lower and upper frames which are formed by a plurality of support beams and side frames () formed by a plurality of support beams which connect the lower and upper frames , the jig comprising:a plurality of guide rails disposed inside the lower frame and spaced apart at predetermined intervals;{'b': '110', 'a plurality of width control means disposed to be lovable along the guide rails by being perpendicularly fitted and coupled with respect to the guide rails, disposed to adjust widths of support points to allow plate glass to be supported by a plurality of support points corresponding to a length of a width of the plate glass, and each having a plurality of seating grooves capable of fitting and fixing a lower end surface of the plate glass ();'}height control means formed of side slot bars disposed to be horizontal to the width control means, disposed at both upper side surfaces of the side frames to face each other, and including a plurality of slot grooves, height control guide beams vertically disposed along the side frames to be perpendicular to the side slot bars and having a plurality of height control holes formed at predetermined intervals, and fixing ports movably assembled to the height control guide beams to change ...

HIGH STRENGTH GLASS-CERAMICS HAVING PETALITE AND LITHIUM SILICATE STRUCTURES

Glass and glass ceramic compositions having a combination of lithium silicate and petalite crystalline phases along with methods of making the glass and glass ceramic compositions are described. The compositions include LiO, SiO, and AlO. Ion-exchanged glass-ceramic articles made from the glass and glass ceramic compositions have a surface compressive stress in a range from about 100 MPa to about 500 MPa. 1. An ion-exchanged glass-ceramic article comprising LiO , SiO , and AlO , wherein: a petalite crystalline phase; and', 'a lithium silicate crystalline phase; and, 'the ion-exchanged glass-ceramic article comprisesthe ion-exchanged glass-ceramic article has a surface compressive stress in a range from about 100 MPa to about 500 MPa.2. The ion-exchanged glass-ceramic article of claim 1 , wherein the surface compressive stress is from about 100 MPa to about 250 MPa.3. The ion-exchanged glass-ceramic article of claim 1 , wherein the ion-exchanged glass-ceramic article has a depth of layer of at least about 100 μm.4. The ion-exchanged glass-ceramic article of claim 1 , wherein the ion-exchanged glass-ceramic article has a central tension of at least 10 MPa.5. The ion-exchanged glass-ceramic article of claim 1 , wherein the petalite crystalline phase is present in the ion-exchanged glass ceramic article in an amount of from 20 to 70 wt %.6. The ion-exchanged glass ceramic article of claim 1 , wherein the lithium silicate crystalline phase is present in the ion-exchanged glass ceramic article in an amount of from 20 to 60 wt %.7. The ion-exchanged glass ceramic article of claim 1 , wherein the ion-exchanged glass-ceramic article comprises:{'sub': '2', 'from about 55 to about 80 wt % SiO;'}{'sub': '2', 'from about 5 to about 20 wt % LiO;'}{'sub': 2', '3, 'from about 2 to about 20 wt % AlO;'}{'sub': '2', 'from greater than 0 to about 10 wt % ZrO; and'}{'sub': 2', '5, 'from about 0.5 to about 15 wt % PO.'}8. The ion-exchanged glass ceramic article of claim 1 , wherein the ...

GLASSES AND GLASS CERAMICS INCLUDING A METAL OXIDE CONCENTRATION GRADIENT

A glass-based article may include from about 45 mol. % to about 80 mol. % SiO; from about 0 mol. % to about 10 mol. % NaO; less than about 5 mol. % KO; a non-zero amount of AlO; and an amorphous phase and a crystalline phase. The article may further in include a stress profile comprising a surface compressive stress (CS) and a maximum central tension (CT). A ratio of LiO (mol. %) to RO (mol. %) in the article is from about 0.5 to about 1, where RO is the sum of LiO, NaO, and KO in the article. CT may be greater than or equal to about 50 MPa and less than about 100 MPa. CS may be greater than 2.0·CT. A depth of compression (DOC) of the stress profile may be greater than or equal to 0.14·t and less than or equal to 0.25·t, where t is the thickness of the article. 1. A glass-based article comprising:{'sub': '2', 'greater than or equal to 45 mol. % and less than or equal to about 80 mol. % SiO;'}{'sub': '2', 'greater than or equal to 0 mol. % and less than or equal to 10 mol. % NaO;'}{'sub': '2', 'less than 5 mol. % KO;'}{'sub': 2', '3, 'a non-zero amount of AlO;'}a first surface and a second surface opposing the first surface thereby defining a thickness (t) of the glass-based article; and the glass-based article comprises an amorphous phase and a crystalline phase;', {'sub': 2', '2', '2', '2', '2', '2, 'a ratio of LiO (mol. %) to RO (mol. %) in the glass-based article is greater than or equal to 0.5 and less than or equal to 1, where RO is the sum of LiO, NaO, and KO in the glass-based article;'}, 'CT is greater than or equal to about 50 MPa and less than about 100 MPa;', 'CS is greater than 2.0·CT; and', 'a depth of compression (DOC) of the stress profile is greater than or equal to 0.14·t and less than or equal to 0.25·t., 'a stress profile comprising a surface compressive stress (CS) and a maximum central tension (CT), wherein2. The glass-based article of claim 1 , wherein CS is greater than or equal to 150 MPa.3. The glass-based article of claim 1 , wherein CS is ...

GLASS-BASED ARTICLES INCLUDING A METAL OXIDE CONCENTRATION GRADIENT

A glass-based article includes an amorphous phase and a crystalline phase, and a first surface and a second surface opposing the first surface thereby defining a thickness (t) of the glass-based article. The glass-based article has a stress profile with a surface compressive stress (CS) and a maximum central tension (CT). The maximum CT is greater than or equal to 80 MPa and less than or equal to 95 MPa, and the maximum CT is positioned within the glass-based article at a range from greater than or equal to 0.4·t and less than or equal to 0.6·t. The surface CS of the glass-based article is greater than or equal to 200 MPa; and a depth of compression (DOC) is from greater than or equal to 0.14·t and less than or equal to 0.25·t. 1. A glass-based article comprising:{'sub': '2', 'greater than or equal to 40 mol % and less than or equal to 80 mol % SiO;'}{'sub': '2', 'greater than or equal to 0 mol % and less than or equal to 6 mol % NaO;'}{'sub': '2', 'less than 2 mol % KO;'}a first surface and a second surface opposing the first surface thereby defining a thickness (t) of the glass-based article;{'sub': 2', '2', '2', '2', '2', '2, 'a ratio of LiO (mol %) to RO (mol %) in the glass-based article is greater than or equal to 0.7 and less than or equal to 1.0, wherein RO is the sum of LiO, NaO, and KO in the glass-based article;'} the maximum CT is greater than or equal to 80 MPa and less than or equal to 95 MPa;', 'the maximum CT is positioned within the glass-based article at a range from greater than or equal to 0.4·t and less than or equal to 0.6·t;', 'the surface CS is greater than or equal to 200 MPa; and', 'a depth of compression (DOC) is from greater than or equal to 0.14·t and less than or equal to 0.25·t, and, 'a stress profile comprises a surface compressive stress (CS) and a maximum central tension (CT), whereinthe glass-based article is a glass-ceramic comprising an amorphous phase and a crystalline phase.2. The glass-based article of claim 1 , wherein the ...

EDGE CHAMFERING METHODS

Processes of chamfering and/or beveling an edge of a glass substrate of arbitrary shape using lasers are described herein. Two general methods to produce chamfers on glass substrates are the first method involves cutting the edge with the desired chamfer shape utilizing an ultra-short pulse laser to create perforations within the glass; followed by an ion exchange. 1. A method of chamfering a material comprising:focusing a pulsed laser beam into a laser beam focal line, viewed along the beam propagation direction;directing the laser beam focal line into the material at a first angle of incidence to the material, the laser beam focal line generating an induced absorption within the material, the induced absorption producing a defect line along the laser beam focal line within the material;translating the material and the laser beam relative to each other, thereby laser drilling a plurality of defect lines along a first plane at the first angle within the material;directing the laser beam focal line into the material at a second angle of incidence to the material, the laser beam focal line generating an induced absorption within the material, the induced absorption producing a defect line along the laser beam focal line within the material;translating the material and the laser beam relative to each other, thereby laser drilling a plurality of defect lines along a second plane at the second angle within the material, the second plane intersecting the first plane, andseparating the material along the first plane and the second plane by applying an ion-exchange process to the material, wherein during separating of the material along the first plane and the second plane the ion-exchange process is applied to the material for time t, wherein 10 min≦t≦120 min.2. The method of claim 1 , wherein directing the laser beam focal line into the material at a first angle of incidence to the material is directed to a first surface of the material and directing the laser beam focal ...

Chemically Toughened Flexible Ultrathin Glass

A chemically toughened ultrathin glass is provided. The glass has a thickness less than 500 μm and a surface compressive layer having a depth of at most 30 μm. The toughened ultrathin glass sheet is more flexible and has extraordinary thermal shock resistance with the glass being easier to handle for processing. 2. The glass article according to claim 1 , wherein said slow ion exchange rate includes slowly chemically toughening in a salt bath between 350-700° C. for 15 minutes to 48 hours.3. The glass article according to claim 2 , wherein said glass either before or after chemical toughening has a property selected from the group consisting of a thermal shock parameter R higher than 190 W/m claim 2 , a maximum thermal loading ΔT higher than 380° C. claim 2 , a resistance to temperature difference RTG higher than 50 K claim 2 , a resistance to thermal shock RTS higher than 75 K claim 2 , a CTE less than 9.5×10-6/K claim 2 , and any combinations thereof.4. The glass article according to claim 1 , wherein said glass has a Young's modulus less than 84 GPa.5. The glass article according to claim 1 , wherein said glass has a rigidity ε less than 33.5 GPa·cm3/g.21. The glass article according to claim 1 , wherein said glass has a surface roughness less than 5 nm.22. The glass article according to claim 1 , wherein said glass is glass sheet having a size that is greater than 100×100 mm2.23. The glass article according to claim 1 , wherein said glass is a glass roll claim 1 , said glass roll having a width greater than 250 mm and a spreading length is greater than 1 m.24. The glass article according to claim 1 , wherein said glass has a bending radius less than 150 mm.25. The glass article according to claim 1 , further comprising a bendable non-ITO conductive coating with a thickness between 0.001 μm and 100 μm thereon such that the glass article is a conductive glass article.26. The glass article according to claim 25 , wherein the conductive coating comprises a material ...

DECORATIVE POROUS INORGANIC LAYER COMPATIBLE WITH ION EXCHANGE PROCESSES

Embodiments of methods for forming strengthened glass articles comprise providing an exchangeable glass substrate having a coefficient of thermal expansion (CTE) between about 60×10−7°/C. to about 110×10−7°/C., depositing at least one decorative porous inorganic layer onto at least a portion of the surface of the glass substrate, wherein the decorative porous inorganic layer comprises a glass transition temperature (Tg)≧450° C., a glass softening temperature (Ts)≧650° C., wherein the difference in CTE values between the glass substrate and the decorative porous inorganic layer is within 10×10−7°/C.; and curing the glass substrate and the deposited decorative porous inorganic layer at a temperature greater than the Ts of the decorative porous inorganic layer; and chemically strengthening the cured glass substrate and the decorative porous inorganic layer thereon via ion exchange at a temperature below the Tg of the decorative porous inorganic layer. 1. A method for forming a strengthened glass article , the method comprising:{'sup': −7', '−7, 'providing an ion exchangeable glass substrate having a coefficient of thermal expansion (CTE) ranging between about 60×10/° C. to about 110×10/° C.;'}{'sup': '−7', 'depositing at least one decorative porous inorganic layer onto at least a portion of the surface of the glass substrate, wherein the decorative porous inorganic layer comprises a glass transition temperature (Tg)≧450° C., a glass softening temperature (Ts)≦650° C., wherein the difference in CTE values between the glass substrate and the decorative porous inorganic layer is within 10×10° C.;'}curing the glass substrate and the deposited decorative porous inorganic layer at a temperature greater than the glass softening temperature (Ts) of the decorative porous inorganic layer; andchemically strengthening the cured glass substrate and the decorative porous inorganic layer thereon via ion exchange at a temperature above the glass transition temperature (Tg) of the ...

GLASS FOR CHEMICAL STRENGTHENING, CHEMICALLY STRENGTHENED GLASS, AND METHOD FOR MANUFACTURING CHEMICALLY STRENGTHENED GLASS

An object of the present invention is to provide a glass for chemical strengthening which is capable of improving strength as compared with an ordinary soda lime silicate glass even when the same chemical strengthening treatment as that in a conventional process is applied and has good devitrification characteristics, a chemically strengthened glass using the glass for chemical strengthening, and a method for producing the chemically strengthened glass. The present invention provides a glass for chemical strengthening having a specific glass composition described in the present specification. 1. A glass for chemical strengthening , comprising , as expressed by mass percentage based on oxides , 60 to 72% of SiO , 4.4 to 10% of AlO , 5 to 10.9% of MgO , 0.1 to 5% of CaO , 14 to 19% of NaO , and 0 to 3% of KO , wherein RO is 7% or more and 11% or less (wherein the RO represents the sum of alkaline earth metal oxides , i.e. , MgO , CaO , SrO , and BaO) and RO/(RO+RO) is 0.20 or more and 0.42 or less (wherein the RO represents the sum of alkali metal oxides).2. The glass for chemical strengthening according to claim 1 , wherein the RO/(RO+RO) is 0.40 or less.3. The glass for chemical strengthening according to claim 1 , comprising 5% or more of AlO.4. The glass for chemical strengthening according to claim 1 , comprising 6% or more of MgO.5. The glass for chemical strengthening according to claim 1 , comprising 10% or less of MgO.6. The glass for chemical strengthening according to claim 1 , further comprising 0 to 4% of BO claim 1 , 0 to 1% of FeOand 0 to 1% of TiO.7. The glass for chemical strengthening according to claim 1 , having a temperature (T) at which a viscosity is 10dPa·s of 1550° C. or lower.8. The glass for chemical strengthening according to claim 1 , which has been formed according to a float process.9. A chemically strengthened glass obtained by chemically strengthening the glass for chemical strengthening according to .10. The chemically strengthened ...

METHODS FOR THERMALLY TREATING GLASS ARTICLES

According to one embodiment, a method for thermally treating glass articles may include holding a glass article at a treatment temperature equal to an annealing temperature of the glass article =15° C. for a holding time greater than or equal to 5 minutes. Thereafter, the glass article may be cooled from the treatment temperature through a strain point of the glass article at a first cooling rate CR1 less than 0° C./min and greater than −20° C./min such that a density of the glass article is greater than or equal to 0.003 g/cc after cooling. The glass article is subsequently cooled from below the strain point at a second cooling rate CR, wherein |CR|>|CR|. 1. A method for thermally treating glass articles , the method comprising:holding a glass article at a treatment temperature equal to an annealing temperature of the glass article ±15° C. for a holding time greater than or equal to 5 minutes;{'sub': '1', 'cooling the glass article from the treatment temperature through a strain point of the glass article at a first cooling rate CRless than 0° C./min and greater than −20° C./min such that a density of the glass article is greater than or equal to 0.003 g/cc after cooling; and'}{'sub': 2', '2', '1, 'cooling the glass article from below the strain point at a second cooling rate CR, wherein |CR|>|CR|.'}2. The method of claim 1 , wherein the first cooling rate CRis from about −1° C./min to about −10° C./min.3. The method of claim 1 , wherein the holding time is less than or equal to 15 minutes.4. The method of claim 1 , wherein the treatment temperature is within a range from the annealing temperature to 10° C. greater than the annealing temperature.5. The method of claim 1 , wherein the glass article is cooled at the second cooling rate CRto room temperature.61. The method of further comprising an initial step of heating the glass article to the treatment temperature at a first heating rate HR claim 1 , wherein |HR|>|CR|.7. The method of claim 1 , wherein the glass ...

GLASSES AND GLASS CERAMICS INCLUDING A METAL OXIDE CONCENTRATION GRADIENT

Embodiments of a glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t) of about 3 millimeters or less (e.g., about 1 millimeter or less), and a stress profile, wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than 0.7·t, comprise a tangent that is less than about −0.1 MPa/micrometers or greater than about 0.1 MPa/micrometers, are disclosed. In some embodiments, the glass-based article includes a non-zero metal oxide concentration that varies along at least a portion of the thickness (e.g., 0·t to about 0.3·t). In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a point between the first surface and the second surface and increases from the point to the second surface. The concentration of the metal oxide may be about 0.05 mol % or greater or about 0.5 mol % or greater throughout the thickness. Methods for forming such glass-based articles are also disclosed. 1. The use of a glass composition in a strengthened glass , the glass composition comprising in mol %:{'sub': '2', 'SiOin an amount from about 60 to about 72;'}{'sub': 2', '3, 'AlOin an amount from about 6 to about 10;'}a total amount of MgO+CaO+ZnO is from about 0.1 to about 8;{'sub': 2', '2', '2, 'a total amount of LiO+NaO+KO is from about 5 to about 15;'}{'sub': '2', 'LiO in an amount from about 6 to about 10;'}{'sub': '2', 'NaO in an amount from about 0 to about 10;'}{'sub': '2', 'KO in an amount of less than about 2; and'}{'sub': '2', 'claim-text': [{'sub': '2', 'the glass composition is substantially free of TiO;'}, {'sub': 2', '3, 'the glass composition is substantially free of FeO; and'}, {'sub': 2', '2', '2', '2, 'a ratio of LiO to (LiO+NaO+KO) is from about 0.5 to about 1.'}], 'ZrOin an amount of about 0.1 to about 1, wherein2. The use of the glass composition of claim 1 , wherein the glass composition is substantially ...

METHODS FOR TREATING GLASS ARTICLES

Methods for increasing the hydrolytic resistance of a glass article are disclosed. According to one embodiment, the method includes providing a glass article with a pre-treatment hydrolytic titration value. Thereafter, the glass article is thermally treated at a treatment temperature greater than a temperature 200C less than a strain temperature of the glass article for a treatment time greater than or equal to about hours such that, after thermally treating the glass article, the glass article has a post-treatment hydrolytic titration value that is less than the pre-treatment hydrolytic titration value. 1. A method for increasing the hydrolytic resistance of a glass article , the method comprising:providing a glass article with a pre-treatment hydrolytic titration value; andthermally treating the glass article at a treatment temperature greater than a temperature 200° C. less than a strain temperature of the glass article for a treatment time greater than or equal to about 0.25 hours such that, after thermally treating the glass article, the glass article has a post-treatment hydrolytic titration value that is less than the pre-treatment hydrolytic titration value.2. The method of claim 1 , wherein:prior to thermally treating, a surface of the glass article has a glass surface layer with a persistent layer heterogeneity relative to a midpoint within a thickness of the glass article, wherein an extrema in a layer concentration of each constituent component in the glass surface layer is less than about 80% or greater than about 120% of a concentration of a same constituent component at the midpoint prior to thermally treating; andafter thermally treating, an extrema in the layer concentration of each constituent component in the glass surface layer is greater than or equal to 80% or less than or equal to about 120% of the concentration of the same constituent component at the midpoint after thermally treating.3. The method of claim 2 , wherein after thermally ...

LENTICULAR SHEET FOR CREATING AN OPTICAL STEREO EFFECT OF AN IMAGE CODED IN A DECORATIVE PANEL AND A METHOD OF CARRYING OUT THE SAME

Invention relates to lenticular sheets made of thermally or chemically hardened mineral glass used for decorative panels, to create three-dimensional visual effects combined with an encoded image. One of the advantages of invention is the fact that it is a proposed mineral lenticular sheet, which underwent chemical or mechanical hardening of its outer parts This increases the mechanical strength and impact resistance. This aspect makes it safer for use under the influence of external factors and in contact with a person. This allows for applying the invention in large scopes in comparison with plastic lenticular screens. Pre-stressing is achieved by thermal or chemical hardening. 1464. A lenticular sheet () for creating in a decorative panel an optical stereo effect of an image () coded therein , including a transparent flat surface on one side and a plurality of cylindrical lenses arranged parallel to each other on the other side wherein the lenticular sheet () is made of mineral glass.24. The lenticular sheet according to claim 1 , wherein the mineral lenticular sheet () is finished by thermal or chemical hardening.441. A method of producing mineral lenticular sheet () according to claim () claim 1 , comprising the following steps:{'b': '100', 'a) glass melting ()'}{'b': 4', '104', '104', '4, 'b) forming a sheet () by rolling () of the melted glass () between two shafts, wherein one of the shafts has a flat surface, while another has negative forms of lenses, thus forming a plurality of cylindrical lenses arranged in parallel to each other on the other side of the sheet ().'}c) primary cutting subject to proportions of the decorative panel used therein.34. The method according to wherein further chemical or thermal hardening is provided after step (b) depending on the required thinkness of the sheet ().4. The method according to wherein for the sheet having thinkness less than 3 mm a chemical hardening is provided preferably by immersing the sheet in a bath ...

TRANSPARENT, NEAR INFRARED-SHIELDING GLASS CERAMIC

Optically transparent glass ceramic materials comprising a glass phase containing and a crystalline tungsten bronze phase comprising nanoparticles and having the formula MWO, where M includes at least one H, Li, Na, K, Rb, Cs, Ca, Sr, Ba, Zn, Cu, Ag, Sn, Cd, In, Tl, Pb, Bi, Th, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and U, and where 0 Подробнее

High strength glass-ceramics having petalite and lithium silicate structures

Glass and glass ceramic compositions having a combination of lithium silicate and petalite crystalline phases along with methods of making the glass and glass ceramic compositions are described. The compositions are compatible with conventional rolling and float processes, are transparent or translucent, and have high mechanical strength and fracture resistance. Further, the compositions are able to be chemically tempered to even higher strength glass ceramics that are useful as large substrates in multiple applications.

GLASS-BASED ARTICLES WITH IMPROVED STRESS PROFILES

Glass-based articles are manufactured by a unique ion exchange process that results in glass-based articles having improved stress profiles with higher stress values at moderate depths. A medium of the ion exchange process includes ions of two or more alkali metals of two or more alkali metal oxides in a base composition of a glass-based substrate in a ratio such that ions of each alkali metal are in chemical equilibrium with each of the respective alkali metals of the alkali metal oxides in the base glass composition. 1. A glass-based article comprising:opposing first and second surfaces defining a thickness (t);a central composition at the center of the glass-based article containing two alkali metal oxides;a surface concentration of each of the two alkali metal oxides being non-zero at one or both of the first and second surfaces; anda metal oxide, different from the two alkali metal oxides of the central composition, having a non-zero concentration that varies from the first surface to a depth of layer (DOL) with respect to the metal oxide;wherein at a depth of about three times the DOL, a concentration of each of the two alkali metal oxides is within 10% of a respective concentration of each of the two alkali metal oxides in the central composition.2. The glass-based article of claim 1 , wherein at the first surface claim 1 , the surface concentration of each of the two alkali metal oxides are ±5% of the respective concentration of each of the two alkali metal oxides in the central composition.3. The glass-based article of claim 1 , wherein the glass-based article comprises an alkali-aluminosilicate claim 1 , an alkali-containing borosilicate claim 1 , an alkali-containing aluminoborosilicate claim 1 , or an alkali-containing phosphosilicate.4. The glass-based article of claim 1 , wherein the central composition comprises 1 mol % or less of the metal oxide different from the two alkali metal oxides of the central composition.5. The glass-based article of claim ...

THERMALLY STRENGTHENED ARCHITECTURAL GLASS AND RELATED SYSTEMS AND METHODS

A strengthened architectural glass or glass-ceramic sheet or article as well as processes and systems for making the strengthened architectural glass or glass-ceramic sheet or article is provided. The process comprises cooling the architectural glass sheet by non-contact thermal conduction for sufficiently long to fix a surface compression and central tension of the sheet. The process results in thermally strengthened architectural glass sheets that may be incorporated into one or more panes in single or multi-pane windows. 1. A window comprising:a first glass-based layer comprising first and second major surfaces, a first body formed from a first glass material, and a first outer edge; the second glass-based layer facing, spaced apart from and disposed substantially parallel to the first glass-based layer by a first distance;', 'the second glass based layer comprising an interior region located between the first and second major surfaces of the second glass-based layer;', 'wherein an ion content and chemical constituency of at least a portion of one of the first major surface or the second major surface of the second glass-based layer is the same as an ion content and chemical constituency of at least a portion of the interior region of the second glass-based layer;', 'wherein the first and second major surfaces of the second glass-based layer are under compressive stress greater than 60 MPa and the interior region of the second glass-based layer is under tensile stress;', 'wherein a surface roughness of the first major surface of the second glass-based layer is between 0.2 and 1.5 nm Ra roughness., 'a second glass-based layer comprising first and second major surfaces, a second body formed from a second glass material, and a second outer edge;'}2. The window of claim 1 , wherein the stress within the second glass-based layer varies as a function of position relative to the first and second major surfaces of the second glass-based layer claim 1 , wherein the stress ...

STRENGTHENED GLASS AND RELATED SYSTEMS AND METHODS

A strengthened glass or glass-ceramic sheet or article as well as processes and systems for making the strengthened glass or glass-ceramic sheet or article is provided. The process comprises cooling the glass sheet by non-contact thermal conduction for sufficiently long to fix a surface compression and central tension of the sheet. The process results in thermally strengthened glass sheets. 1. A process for thermally strengthening a glass material comprising:heating an article of a glass material above a glass transition temperature of the glass material;supporting the heated article with a flow of pressurized gas; andcooling the heated article in a cooling station, the cooling station including a heat sink having a heat sink surface facing the heated article and a gas gap separating the heat sink surface from the heated article, wherein the heated article is supported in the gas gap by the flow of pressurized gas such that the heat sink surface does not touch the heated article;wherein the heated article is cooled within the cooling station to a temperature below the glass transition temperature such that surface compressive stresses are created within the article;wherein the flow of pressurized gas is delivered to the gas gap at a flow rate between 50 slpm and 50,000 slpm per square meter of surface area of the heated article.2. The process of claim 1 , wherein the flow rate of the pressurized gas is low such that the heated article is cooled by transferring thermal energy from the heated article to the heat sink by conduction across the gas gap such that more than 20% of the thermal energy leaving the heated article crosses the gas gap and is received by the heat sink.3. The process of claim 1 , wherein the flow rate of the pressurized gas is low such that the heated article is cooled by transferring thermal energy from the heated article to the heat sink by conduction across the gas gap such that more than 50% of the thermal energy leaving the heated article ...

THERMALLY STRENGTHENED AUTOMOTIVE GLASS

A strengthened automotive glass-based sheet or automotive glass laminate as well as processes and systems for making the strengthened automotive glass-based sheet or automotive laminate is provided. The process comprises cooling the glass sheet by non-contact thermal conduction for sufficiently long to fix a surface compression and central tension of the sheet. The process results in thermally strengthened automotive glass sheets and automotive laminates. 1. A laminate for a vehicle , the laminate comprising:a first glass-based layer;at least one interlayer at least partially coextensive with the first glass-based layer and coupled directly or indirectly to a side of the first glass-based layer;a second glass-based layer comprising a first major surface, a second major surface opposite the first major surface defining a thickness, and an interior region located between the first and second major surfaces; wherein one or both the first major surface and the second major surface of the second glass sheet comprise a stress birefringence of about 10 nm/cm or less; wherein an ion content and chemical constituency of at least a portion of both the first major surface and the second major surface of the second glass-based layer is the same as an ion content and chemical constituency of at least a portion of the interior region of the second glass-based layer;', 'wherein either one or both the first and second major surfaces of the second glass-based layer comprise a surface compressive stress greater than 150 MPa; and', 'wherein a surface roughness of the first or second major surface of the second glass-based layer is between 0.2 and 2.0 nm Ra roughness over an area of 15 micrometers by 15 micrometers., 'the second glass-based layer at least partially coextensive with the at least one interlayer and coupled directly or indirectly to the interlayer opposite the first glass-based layer;'}2. The laminate of claim 1 , wherein the thickness of the second glass-based layer is ...

THERMALLY STRENGTHENED CONSUMER ELECTRONIC GLASS AND RELATED SYSTEMS AND METHODS

A strengthened cover glass or glass-ceramic sheet or article as well as processes and systems for making the strengthened glass or glass-ceramic sheet or article is provided for use in consumer electronic devices. The process comprises cooling the cover glass sheet by non-contact thermal conduction for sufficiently long to fix a surface compression and central tension of the sheet. The process results in thermally strengthened cover glass sheets for use in or on consumer electronic products. 1. A consumer electronic product comprising:an electronic display comprising a front surface, a back surface, and at least one side surface; wherein the glass-based layer is provided at least partially over the electronic display;', 'wherein an average thickness between the first and second major surfaces of the glass-based layer is less than 2 mm;', 'wherein an ion content and chemical constituency of at least a portion of both the first major surface and the second major surface of the glass-based layer is the same as an ion content and chemical constituency of at least a portion of the interior region of the glass-based layer;', 'wherein the first and second major surfaces of the glass-based layer are under compressive stress greater than 150 MPa and the interior region of the glass-based layer is under tensile stress;', 'wherein a surface roughness of the first major surface of the glass-based layer is between 0.2 and 1.5 nm Ra roughness., 'a glass-based layer comprising a first major surface opposite a second major surface with an interior region located therebetween;'}2. The consumer electronic product of claim 1 , wherein the stress within the glass-based layer varies as a function of position relative to the first and second major surfaces claim 1 , wherein the stress within the glass-based layer has slope of at least 200 MPa over a distance of less than 500 μm of the thickness of the glass-based layer.3. The consumer electronic product of claim 1 , wherein a surface ...

METHOD FOR TEMPERING GLASS PLATE, AND TEMPERED GLASS PLATE

To provide a method for tempering glass to obtain tempered glass having high surface quality and a deep compression stress layer. The present invention relates to a method for tempering a glass plate comprising a preparation step of preparing a glass plate having a surface temperature of at most the strain point, an internal heating step of heating the internal temperature of the glass plate to be at least the annealing point, while maintaining the surface temperature of the glass plate within minutes, or to be at most the strain point, and a cooling step of cooling the glass plate. 1. A tempered glass plate made of glass with a single matrix composition and having a first main surface and a second main surface opposed to each other , characterized in that the tempered glass plate has a compressive stress layer at its surface , wherein in the distribution of stress remaining in a cross section passing through the center of the first main surface and being perpendicular to the first main surface , the depth from the first main surface where the compressive stress component in a direction parallel to the first main surface becomes zero , is at least 22% of the plate thickness of the tempered glass plate.2. The tempered glass plate according to claim 1 , which has at least one of the following first region and the following second region in a range from the first main surface to the depth from the first main surface where the above compressive stress component becomes zero claim 1 , whereinthe first region is a region where the absolute value of the change rate of the above stress distribution in the plate thickness direction of the tempered glass plate becomes constant, andthe second region is a region where the above absolute value decreases towards the first main surface.3. The tempered glass plate according to claim 1 , wherein in the above stress distribution claim 1 , the absolute value of the change rate in the plate thickness direction of the tempered glass ...

CHEMICALLY STRENGTHENED GLASS

The present invention relates to a chemically strengthened glass having a first principal surface and a second principal surface facing the first principal surface, at least a portion of the first principal surface being chemically strengthened, wherein the depth of a compressive stress layer in at least a portion of the first principal surface continuously changes. This chemically strengthened glass can be suitably used in an application in which chemical strengthening characteristics that differ among different regions in the same plane are desired in a chemically strengthened glass. 1. A chemically strengthened glass comprising a first main surface and a second main surface opposite the first main surface , wherein at least a part of the first main surface is chemically strengthened , anda depth of a compressive stress layer in at least a part of the first main surface continuously changes.2. The chemically strengthened glass according to claim 1 , comprising a part having an absolute value of the maximum value of an inclination of a change of the depth of the compressive stress layer being 150×10or less claim 1 , in at least a part of the first main surface.3. The chemically strengthened glass according to claim 1 , wherein the depth of the compressive stress layer changes over 10 mm or more in a predetermined direction in the first main surface.4. The chemically strengthened glass according to claim 1 , wherein the whole first main surface is chemically strengthened.5. The chemically strengthened glass according to claim 1 , having a curved shape claim 1 , wherein:the first main surface is a convex surface and the second main surface is a concave surface;the chemically strengthened glass has a first point and a second point which are apart from each other at a distance on the first main surface in a first direction, wherein the first direction is a direction having the smallest curvature radius in a cross-section including a normal line at the gravity center of ...

GLASS-BASED ARTICLES WITH IMPROVED FRACTURE RESISTANCE

Glass-based articles are provided that exhibit improved fracture resistance. The relationships between properties attributable to the glass composition and stress profile of the glass-based articles are provided that indicate improved fracture resistance. 1. A method , comprising:exposing a glass-based substrate to an ion exchange solution to form a glass-based article; a first surface;', 'a second surface; and', {'sub': 1', '2', '1', '2, 'a stress profile having a first compressive region extending from a first surface to a first depth of compression DOC, a second compressive region extending from a second surface to a second depth of compression DOC, and a tensile region extending from DOCto DOC,'}, {'sub': T', 'IC', 'IC, 'wherein the tensile region has a tensile stress factor Kgreater than or equal to 1.31 MPa·√(m) and less than 1.8·K, wherein Kis the fracture toughness of the glass-based substrate.'}], 'wherein the glass-based article comprises2. The method of claim 1 , wherein Kis greater than or equal to 1.41 MPa·√(m).3. The method of claim 1 , wherein Kis less than or equal to 1.781·K.4. The method of claim 1 , wherein Kis greater than or equal to 0.67 MPa·√(m).5. The method of claim 1 , wherein DOC=DOC claim 1 , as measured from the first and second surfaces claim 1 , respectively.6. The method of claim 1 , wherein the glass-based article is non-frangible.8. The method of claim 7 , wherein Kis greater than or equal to 1.41 MPa·√(m).10. The method of claim 7 , wherein Kis greater than or equal to 0.67 MPa·√(m).11. The method of claim 7 , wherein the glass-based article is non-frangible.13. The method of claim 12 , wherein Kis greater than or equal to 1.41 MPa·√(m).14. The method of claim 12 , wherein Kis less than or equal to 0.95·K.15. The method of claim 12 , wherein Kis greater than or equal to 0.67 MPa·√(m).16. The method of claim 12 , wherein DOC=t-DOC.17. The method of claim 12 , wherein the glass-based article is non-frangible.20. The method of claim ...

PRODUCTION METHOD OF CHEMICALLY STRENGTHENED GLASS, AND CHEMICALLY STRENGTHENED GLASS

The present invention relates to a method for producing a chemically strengthened glass, the method including, performing a chemical strengthening treatment including the following steps (1) to (3) to a glass having a specific composition, (1) a step of bringing the glass into contact with an inorganic salt composition including 70 mass % or more of potassium nitrate to perform ion exchange; (2) a step of bringing the glass having been ion-exchanged in step (1) into contact with an inorganic salt composition including 50 mass % or more of sodium nitrate to perform ion exchange; and (3) a step of bringing the glass having been ion-exchanged in step (2) into contact with an inorganic salt composition including 70 mass % or more of potassium nitrate to perform ion exchange. 1: A method for producing a chemically strengthened glass , the method comprising(1) contacting a glass with an inorganic salt composition comprising 70 mass % or more of potassium nitrate to perform ion exchange;(2) contacting the glass obtained in (1) with an inorganic salt composition comprising 50 mass % or more of sodium nitrate to perform ion exchange; and(3) contacting the glass obtained in (2) with an inorganic salt composition comprising 70 mass % or more of potassium nitrate to perform ion exchange,{'sub': 2', '2', '3', '2', '2', '2', '2', '5', '2', '3', '2', '3', '2, 'wherein the glass comprises, in mole percentage based on oxides, from 50 to 80% of SiO, from 2 to 25% of AlO, from 0.1 to 20% of LiO, from 0.1 to 18% of NaO, from 0 to 10% of KO, from 0 to 15% of MgO, from 0 to 5% of CaO, from 0 to 5% of PO, from 0 to 6% of BO, from 0 to 5% of YO, and from 0 to 5% of ZrO.'}2: The method of claim 1 , satisfying at least one of the following (a1) to (a3):(a1) in (1), the contact between the glass and the inorganic salt composition is performed at 350 to 480° C. for 0.5 to 20 hours;(a2) in (2), the contact between the glass and the inorganic salt composition is performed at 340 to 480° C. for 0 ...

COATINGS OF NON-PLANAR SUBSTRATES AND METHODS FOR THE PRODUCTION THEREOF

A coated article is described herein that may comprise a substrate and an optical coating. The substrate may have a major surface comprising a first portion and a second portion. A first direction that is normal to the first portion of the major surface may not be equal to a second direction that is normal to the second portion of the major surface. The optical coating may be disposed on at least the first portion and the second portion of the major surface. The coated article may exhibit at the first portion of the substrate and at the second portion of the substrate hardness of about 8 GPa or greater at an indentation depth of about 50 nm or greater as measured on the anti-reflective surface by a Berkovich Indenter Hardness Test. 1. A coated article comprising:a substrate having a major surface, the major surface comprising a first portion and a second portion, wherein a first direction that is normal to the first portion of the major surface is not equal to a second direction that is normal to the second portion of the major surface, and the angle between the first direction and the second direction is in a range of from about 10 degrees to about 180 degrees; andan optical coating disposed on at least the first portion and the second portion of the major surface, the optical coating forming an anti-reflective surface, wherein:the coated article exhibits at the first portion of the substrate and at the second portion of the substrate hardness of about 8 GPa or greater;the coated article exhibits a photopic reflectance as measured at the anti-reflective surface at the first portion of the substrate of about 2% or less, wherein the photopic reflectance of the first portion is measured at a first incident illumination angle relative to the first direction, wherein the first incident illumination angle comprises an angle in the range from about 0 degrees to about 60 degrees from the first direction;the coated article exhibits a photopic reflectance as measured at the ...

Glass articles exhibiting improved fracture performance

A glass-based article having an amorphous phase and a crystalline phase, and a first surface and a second surface opposing the first surface thereby defining a thickness (t) of the glass-based article. The glass-based article having a stress profile with a surface compressive stress (CS) and a maximum central tension (CT). The maximum CT is greater than or equal to 50 MPa and less than or equal to 200 MPa and is positioned within the glass-based article at a range from greater than or equal to 0.4·t and less than or equal to 0.6·t. The surface CS is greater than or equal to 200 MPa and less than or equal to 500 MPa, and a depth of compression (DOC) is from greater than or equal to 0.14·t and less than or equal to 0.25·t.

GLASS SUBSTRATE AND DISPLAY DEVICE COMPRISING THE SAME

Disclosed herein are methods for making a thin film device and/or for reducing warp in a thin film device, the methods comprising applying at least one metal film to a convex surface of a glass substrate, wherein the glass substrate is substantially dome-shaped. Other methods disclosed include methods of determining the concavity of a glass sheet. The method includes determining the orientation of the concavity and measuring a magnitude of the edge lift of the sheet when the sheet is supported by a flat surface and acted upon by gravity. Thin film devices made according to these methods and display devices comprising such thin film devices are also disclosed herein. 1. A method for making a thin film device , comprising applying at least one metal film to a convex surface of a glass substrate at a first temperature to form the thin film device , and cooling the thin film device to a second temperature.2. The method of claim 1 , wherein the at least one metal film is chosen from copper claim 1 , silicon claim 1 , amorphous silicon claim 1 , polysilicon claim 1 , ITO claim 1 , IGZO claim 1 , IZO claim 1 , ZTO claim 1 , zinc oxide claim 1 , other metal oxides and doped metals and oxides thereof claim 1 , and combinations thereof.3. The method of claim 1 , wherein the at least one metal film has a thickness ranging from about 1 claim 1 ,000 Å to about 10 claim 1 ,000 Å.4. The method of claim 1 , wherein the at least one metal film has a width ranging from about 1 claim 1 ,000 Å to about 10 claim 1 ,000 Å.5. The method of claim 1 , wherein the glass substrate has a thickness of less than about 3 mm.6. The method of claim 1 , wherein the glass substrate has a thickness of between 0.2 mm and less than about 1 mm.7. The method of claim 1 , wherein the glass substrate is substantially dome-shaped or bowl-shaped.8. The method of claim 1 , wherein the glass substrate has a substantially constant thickness over a length and width of the glass substrate.9. The method of claim 1 ...

STRESS FEATURES FOR CRACK REDIRECTION AND PROTECTION IN GLASS CONTAINERS

A glass container comprises a glass body comprising a first region under a compressive stress extending from a surface of the glass body to a depth of compression and a second region extending from the depth of compression into a thickness of the glass body, the second region being under a tensile stress. The glass container also includes a localized compressive stress region having a localized compressive stress extending from the surface to a localized depth of compression within the body. The localized depth of compression is greater than the depth of compression of the first region. The glass container also includes a crack re-direction region extending in a predetermined propagation direction, wherein the crack re-direction region possesses a higher tensile stress than the tensile stress in the second region in a sub-region of the crack re-direction region, the sub-region extending substantially perpendicular to the predetermined propagation direction. 1. A glass container comprising:a body comprising a glass composition, the body having an interior surface, an exterior surface, and a wall thickness extending between the interior surface and the exterior surface, wherein the body comprises a localized compressive stress region having a localized compressive stress extending from the exterior surface to a localized depth of compression within the body, wherein:the localized compressive stress region extends farther into the body than any regions of compressive stress adjacent to the localized compressive region.2. The glass container of claim 1 , wherein the glass container comprises a pharmaceutical container.3. The glass container of claim 1 , wherein the localized depth of compression extends greater than or equal to 2% of the wall thickness and less than or equal to 25% of the wall thickness.4. The glass container of claim 3 , wherein the localized depth of compression extends greater than or equal to 20% of the wall thickness and less than or equal to 25% ...

Method for manufacturing window

A method for manufacturing a window includes providing a base glass, and strengthening the base glass by exposing the base glass to a strengthening molten salt and an additive. The additive contains at least one of Al2(SO4)3, Al(NO3)3, K2SiO3, Na2SiO3, KCl, Ca(NO3)2, and Mg(NO3)2, and a window having good surface compressive stress and excellent surface chemical resistance may thus Ire provided.

GLASS ARTICLES WITH INFRARED REFLECTIVITY AND METHODS FOR MAKING THE SAME

Glass articles with infrared reflectivity and methods for making the same are disclosed herein. In one embodiment, glass article having infrared reflectivity includes a first surface, a second surface and a body extending between the first and second surfaces. A plurality of discrete layers of metallic silver are formed in the body creating at least one optical cavity in the body. Each discrete layer may have a thickness T such that 100 nm≦T≦250 nm and may be spaced apart from adjacent layers of metallic silver by a spacing S≦500. The glass article reflects at least a portion of electromagnetic radiation incident on the glass article having a wavelength from 800 nm to 2500 nm and transmits at least a portion of electromagnetic radiation incident on the glass article having a wavelength from 390 nm to 750 nm. 1. A glass article , comprising:a first surface;a second surface;a body extending from the first surface to the second surface; anda plurality of discrete layers of metallic silver in the body.2. The glass article of claim 1 , wherein each of the plurality of discrete layers of metallic silver has a thickness T such that 100 nm≦T≦250 nm.3. The glass article of claim 1 , wherein a layer of compressive stress extends into the body of the glass article.4. The glass article of claim 3 , wherein the layer of compressive stress has a depth of layer DOL of up to about 60 μm.5. The glass article of claim 4 , wherein the layer of compressive stress has magnitude of compression CS≧200 MPa.6. The glass article of claim 3 , wherein the layer of compressive stress has magnitude of compression CS≧200 MPa.7. The glass article of claim 1 , wherein a first layer of the plurality of discrete layers of metallic silver is spaced apart from the first surface by a distance D claim 1 , and wherein D≦5 μm.8. The glass article of claim 2 , wherein a layer of compressive stress extends into the body of the glass article.9. The glass article of claim 8 , wherein the layer of compressive ...

METHOD AND DEVICE FOR PASSIVATING THE INNER SURFACE OF A GLASS FLASK, AND FLASK OBTAINED WITH SUCH A METHOD

The present invention relates to a method, a device for implementing the method, and a flask obtained by said method for passivating the inner wall of a glass container capable of containing a pharmaceutical grade material. To treat or inhibit the inner surface of the container, said inner surface of the container is treated via ion exchange between the container and an aqueous extraction liquid such that the measured hydrolytic resistance of said surface is divided by at least two. 1. A process for passivation of the inner wall of a glass container suitable for containing a product of pharmaceutical quality , wherein in order to passivate and/or inhibit the inner surface of the container , the process includes treating said inner surface of the container by ion exchange between the container and an aqueous extraction liquid so that the measured hydrolytic resistance of said surface is at least halved.2. The passivation process as claimed in wherein the aqueous extraction liquid is water of R1 quality.3. The passivation process as claimed in claim 1 , wherein the inner surface of the container is treated by at least three passes of the bottle in an autoclave at a temperature above 120° C. for a time greater than one hour claim 1 , the aqueous extraction liquid being changed each time.4. The passivation process as claimed in claim 1 , wherein the extraction liquid is an acid aqueous solution with a pH corrected to 8.5. The passivation process as claimed in claim 1 , wherein claim 1 , the container being a bottle claim 1 , in order to carry out the ionic treatment the following steps are carried out at least once:bringing the inner face of the bottle into contact by filling, vaporization or flowing of the aqueous extraction liquid in the bottle,raising the temperature of the bottle with the extraction liquid inside the bottle and/or while maintaining a saturated atmosphere inside the container up to a given temperature greater than or equal to 80° C. and for a first ...

STRENGTHENED 3D PRINTED SURFACE FEATURES AND METHODS OF MAKING THE SAME

Glass articles including one or more 3D printed surface features attached to a surface of a substrate at a contact interface between the 3D printed surface feature and the surface. The 3D printed surface feature(s) include a glass or a glass-ceramic, a compressive stress region at an exterior perimeter surface of the 3D printed surface feature(s), and a central tension region interior of the compressive stress region. The 3D printed surface feature(s) may be formed of a contiguous preformed material 3D printed on a surface of a substrate. The compressive stress region of a 3D printed surface feature may be formed using an ion-exchange process. 1. A glass article comprising:a substrate comprising a surface; a glass or a glass-ceramic,', 'a compressive stress region at an exterior perimeter surface of the 3D printed surface feature, and', 'a central tension region interior of the compressive stress region., 'a 3D printed surface feature disposed on the surface, the 3D printed surface feature attached to the surface at a contact interface between the 3D printed surface feature and the surface, and the 3D printed surface feature comprising2. The glass article of claim 1 , wherein the 3D printed surface feature comprises one ofthe glass and the glass comprises an ion-exchangeable glass material, andthe glass-ceramic and the glass-ceramic comprises an ion-exchangeable glass-ceramic material.3. (canceled)4. The glass article of claim 1 , wherein the 3D printed surface feature comprises a contiguous preformed material.5. The glass article of claim 1 , wherein:the contact interface has a minimum contact dimension,the compressive stress region has a maximum depth measured inward from the exterior perimeter surface at a direction orthogonal to the exterior perimeter surface, andthe minimum contact dimension is at least three times greater than the maximum depth of the compressive stress region.6. The glass article of claim 5 , wherein the minimum contact dimension is at least ...

METHOD FOR MANUFACTURING FLOAT GLASS, AND FLOAT GLASS

The present invention provides a tin alloy bath for a float bath, an apparatus for manufacturing a float glass, a method for manufacturing a float glass that can provide a high quality float glass in which defects due to coagulation and falling of a volatile tin component have been suppressed, and a float glass manufactured using those. The above-mentioned tin alloy bath for a float bath is a molten metal bath to be placed in the float bath for supplying molten glass to a liquid surface of the molten metal bath, thereby forming into a glass ribbon, and includes 1 mass % or more of copper with the remainder being unavoidable impurities and tin. 1. A method for manufacturing a float glass , comprising: supplying molten glass to a liquid surface of a molten metal bath placed in a float bath , thereby forming into a glass ribbon; lifting the glass ribbon from the liquid surface of the molten metal bath , followed by annealing and cutting to obtain a float glass ,wherein the molten metal bath is a tin alloy bath for a float bath, which comprises 1 mass % or more and 40 mass % or less of copper with the remainder being unavoidable impurities and tin, anda temperature of a region at which the glass ribbon is lifted from the liquid surface of the molten metal bath in the float bath is 700° C. or higher.2. The method for manufacturing a float glass according to claim 1 , wherein the float glass is alkali-free glass.3. The method for manufacturing a float glass according to claim 2 , wherein AlOcontent in the alkali-free glass is from 10.5 to 24 mass %.4. The method for manufacturing a float glass according to claim 2 , wherein a proportion of SOin the molten glass is 5 mass % or less.5. The method for manufacturing a float glass according to claim 4 , wherein the proportion of SOin the molten glass is 0.1 mass % or less. This application is a divisional of U.S. patent application Ser. No. 15/141,332, filed on Apr. 28, 2016, which is a continuation application filed under 35 ...

Shaped glass article and method for producing such a shaped glass article

A shaped glass article is provided that is ultrathin, has two surfaces and one or more edges joining the two surfaces, and a thickness between the two surfaces. The shaped ultrathin glass article has at least one curved area with a non-vanishing surface curvature with a minimal curvature radius R if no external forces are applied. A method for producing a shaped glass article is also provided that includes providing an ultrathin glass with two surfaces and one or more edges joining the two surfaces, having a thickness between the two surfaces and shaping the ultrathin glass to a shaped ultrathin glass article by forming at least one curved area having a non-vanishing surface curvature with a minimal curvature radius R if no external forces are applied to the shaped ultrathin glass article.

GLASS SHEET

A glass sheet is a single glass sheet having a first surface and a second surface facing the first surface. The glass sheet has a curvature part curved in a first direction and a second direction orthogonal to the first direction. A radius of curvature in the first direction of the curvature part is 8,500 mm or less. At least a part of the first surface has been chemically strengthened in the curvature part. In the first direction within the chemically strengthened region in the curvature part, an Na amount in the first surface is smaller than the Na amount in the second surface. 1. A glass sheet , which is a single glass sheet having a first surface and a second surface facing the first surface , wherein:the glass sheet has a curvature part curved in a first direction and a second direction orthogonal to the first direction;a radius of curvature in the first direction of the curvature part is 8,500 mm or less;at least a part of the first surface has been chemically strengthened in the curvature part; andin the first direction within the chemically strengthened region in the curvature part, an Na amount in the first surface is smaller than the Na amount in the second surface.2. The glass sheet according to claim 1 , wherein in the first direction within the region in the curvature part claim 1 , a ratio of the Na amount in the first surface to the Na amount in the second surface is 0.936 or less.3. The glass sheet according to claim 1 , wherein the radius of curvature in the first direction of the curvature part is 7 claim 1 ,000 mm or less claim 1 , and in the first direction within the region in the curvature part claim 1 , a ratio of the Na amount in the first surface to the Na amount in the second surface is 0.925 or less.4. The glass sheet according to claim 2 , wherein in the first direction within the region in the curvature part claim 2 , the ratio of the Na amount in the first surface to the Na amount in the second surface is 0.825 or less.5. The glass ...

Thin glass article with a non-uniformly ion-exchanged surface layer and method for producing such a thin glass article

A thin glass article is provided that has a first face, a second face, one or more edges joining the first and second faces, and a thickness between the first and second faces, where the faces and the one or more edges together form an outer surface of the thin glass article. The thin glass article has an ion-exchanged surface layer on its outer surface. The ion-exchanged surface layer is non-uniform, wherein the non-uniform ion-exchanged surface layer has an associated compressive surface stress which varies between a minimum and a maximum value over the outer surface and/or a depth of layer which varies between a minimum and a maximum value over the outer surface. A method for producing a thin glass article and a use of a thin glass article are also provided. 1. A thin glass article , comprising:a first face;a second faceone or more edges joining the first and second faces;a thickness between the first and second faces, the first and second faces and the one or more edges together forming an outer surface; andan ion-exchanged surface layer on the outer surface, the ion-exchanged surface layer being non-uniform and having a compressive surface stress and/or a depth of layer that varies between a minimum value and a maximum value over the outer surface.2. The thin glass article according to claim 1 , wherein the minimum value is at most 90% of the maximum value.3. The thin glass article according to claim 1 , wherein the minimum value is zero.4. The thin glass article according to claim 1 , wherein the ion-exchanged surface layer is formed by exchanged K and/or Na ions.5. The thin glass article according to claim 1 , wherein the maximum value of the depth of layer is equal or less than 50 μm and the maximum value of the surface compressive stress lies in a range from 10 MPa to 1200 MPa.6. The thin glass article according to claim 1 , wherein the thickness is equal or less than 1 mm.7. The thin glass article according to claim 1 , comprising one or more surface areas ...

GLASS SHEET

A glass sheet includes a first main surface and a second main surface opposite to the first main surface in a thickness direction. X represented by the following formula (1) is −0.29 Подробнее

METHODS FOR PREVENTING BLISTERS IN LAMINATED GLASS ARTICLES AND LAMINATED GLASS ARTICLES FORMED THEREFROM

A method for forming a laminated glass article may include flowing a molten first glass composition having a first RO concentration and a first fining agent with a first fining agent concentration. The method may also include flowing a molten second glass composition having a second RO concentration less than the first RO concentration of the first glass composition and a second fining agent with a second fining agent concentration that is greater than or equal to the first fining agent concentration of the first glass composition. The molten first glass composition may be contacted with the molten second glass composition to form an interface between the molten first glass composition and the molten second glass composition. 1. A laminated glass article comprising:{'sub': '2', 'a first glass layer formed from a first glass composition comprising a first RO concentration and a first fining agent with a first fining agent concentration, wherein R is an element from Group I of the periodic table; and'}{'sub': 2', '2, 'a second glass layer fused to the first glass layer, the second glass layer formed from a second glass composition comprising a second RO concentration less than the first RO concentration of the first glass composition and a second fining agent with a second fining agent concentration that is greater than or equal to the first fining agent concentration of the first glass composition'}{'sup': '+2', 'wherein the first fining agent and the second fining agent are oxides of Sn, and a ratio of Snions to a total concentration of Sn in the first molten glass composition is greater than or equal to about 0.15.'}2. The laminated glass article of claim 1 , wherein a difference between the first RO concentration and the second RO concentration is at least 3 mol %.3. The laminated glass article of claim 1 , wherein the laminated glass article comprises less than 1 blister defect/lb of the laminated glass article.4. The laminated glass article of claim 1 , wherein ...

GLASS FOR CHEMICAL STRENGTHENING

The purpose of the present invention is to provide a glass for chemical strengthening that exhibits a high strength after chemical strengthening and is resistant to devitrification. The present invention relates to a glass for chemical strengthening that contains, expressed as mol% on an oxide basis, 55 to 70% SiO, 10 to 25% AlO, 1 to 20% LiO, 0 to 8% CaO, 0 to 8% SrO, and 0 to 5% ZrO, in which the sum of the contents of CaO and SrO is 1.5 to 10%, the sum of the contents of NaO and KO is 3 to 11%, and the value X given by the formula ([LiO]+[KO])/[AlO] is 0.1 to 1.1. 2. The glass for chemical strengthening according to claim 1 , having a total content of MgO claim 1 , BaO claim 1 , and ZnO of 0-5%.3. The glass for chemical strengthening according to claim 1 , having a content of BOof 0-10%.4. The glass for chemical strengthening according to claim 1 , having a temperature (T4) at which a viscosity of the glass is 10dPa·s of 1 claim 1 ,050-1 claim 1 ,300° C.5. The glass for chemical strengthening according to claim 1 , having a devitrification temperature being not higher than a temperature (T4+120° C.) that is higher by 120° C. than the temperature (T4) at which the viscosity of the glass is 10dPa·s.6. The glass for chemical strengthening according to claim 1 , having the devitrification temperature being not lower than a temperature (T5.5) at which the viscosity of the glass is 10dPa·s.7. The glass for chemical strengthening according to claim 1 , having a temperature (T2) at which the viscosity of the glass is 10dPa·s of 1 claim 1 ,400-1 claim 1 ,800° C.8. The glass for chemical strengthening according to claim 1 , having a surface compressive stress of 950 MPa or larger and a depth of a surface compressive-stress layer of 100 μm or larger claim 1 , after being subjected claim 1 , as a glass sheet having a thickness of 0.8 mm claim 1 , to two- stage chemical strengthening including 3-hour immersion in 450° C. sodium nitrate and subsequent 1.5-hour immersion in 450 ...