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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 11906. Отображено 100.

12-01-2012 дата публикации

Glass having excellent resistance against surface damages and method for the production thereof

Номер: US20120009386A1

Автор: Andreas Langsdorf, Bernd Ruedinger, Friedrich Siebers, Markus Heiss

Принадлежит: Andreas Langsdorf, Bernd Ruedinger, Friedrich Siebers, Markus Heiss

A glass having excellent resistance against surface damages is provided. The glass includes a content of alkaline earth oxides of at least 0.3% by weight and of P 2 O 5 of 0.1 to 4% by weight; the glass has at least one surface that has precipitations with a mean size of 1 to 20 μm. A method is further provided and includes melting a glass batch, yielding a glass melt, and casting the glass melt onto a float bath. The glass melt is maintained on the float bath at a temperature of above 1000° C. for at least 5 minutes, and yields glass. The glass has a content of alkaline earth oxides of at least 0.3% by weight and of P2O5 of 0.1 to 4% by weight, and the glass has at least one surface that has precipitations with a mean size of 1 to 20 μm.

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Номер записи: 1

19-01-2012 дата публикации

Mixed antibacterial glass

Номер: US20120015018A1

Автор: Noriyuki Nishiyama, Satoshi Niigawa, Takashi Fushimi, Yoshinao Kobayashi

Принадлежит: Koa Glass Co Ltd

There is provided a mixed antibacterial glass which stably controls the silver ion elution amount from the antibacterial glass into the drain water in an air conditioning system, thereby effectively preventing the occurrence of microorganisms in the drain water. The mixed antibacterial glass achieves antibacterial effect by releasing silver ions, and contains an antibacterial glass which shows alkalinity when dissolved, and another antibacterial glass which shows acidity when dissolved, the silver ion elution amounts from the antibacterial glasses showing alkalinity or acidity being within certain ranges as measured under certain conditions, the compounding amount of the antibacterial glass showing alkalinity being from 10 to 100 parts by weight with reference to 100 parts by weight of the antibacterial glass showing acidity, and the total silver ion elution amount being within a certain range as measured under certain conditions.

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Номер записи: 2

09-02-2012 дата публикации

Rear earth aluminoborosilicate glass composition

Номер: US20120033693A1

Автор: Carsten Weinhold, Hong Li

Принадлежит: Schott North America Inc

The invention relates to aluminoborosilicate-based glasses suitable for use as a solid laser medium. In particular, these aluminoborosilicate-based laser glasses exhibit broad emission bandwidths of rare earth lasing ions. Although not entirely understood, the broadening of the emission bandwidth is believed to be achieved by the presence of significant amounts of lanthanide ions in the glass matrix. In addition, because of the high values of Young's modulus, fracture toughness and hardness, the rare earth aluminoborosilicate glass system according to the invention is also suitable as transparent armor window material.

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Номер записи: 3

03-05-2012 дата публикации

Glass substrate for magnetic recording medium and magnetic recording medium

Номер: US20120107647A1

Автор: Kinobu Osakabe, Naomi Matsumoto, Yoichi Hachitani

Принадлежит: Hoya Corp

An aspect of the present invention relates to a glass substrate for a magnetic recording medium, which is comprised of glass comprising, denoted as molar percentages, 56 to 75 percent of SiO 2 , 1 to 11 percent of Al 2 O 3 , more than 0 percent but equal to or less than 4 percent of Li 2 O, equal to or more than 1 percent but less than 15 percent of Na 2 O, equal to or more than 0 percent but less than 3 percent of K 2 O, and substantially no BaO, with a total content of Li 2 O, Na 2 O, and K 2 O falling within a range of 6 to 15 percent, with a molar ratio (Li 2 O/Na 2 O) being less than 0.50, with a molar ratio {K 2 O/(Li 2 O+Na 2 O+K 2 O)} being equal to or less than 0.13, with a total content of MgO, CaO, and SrO falling within a range of 10 to 30 percent, with a total content of MgO and CaO falling within a range of 10 to 30 percent, with a molar ratio {(MgO+CaO)/(MgO+CaO+SrO)} being equal to or more than 0.86, with a total content of the above alkali metal oxides and alkaline earth metal oxides falling within a range of 20 to 40 percent, with a molar ratio {(MgO+CaO+Li 2 O)/(Li 2 O+Na 2 O+K 2 O+MgO+CaO+SrO)} being equal to or more than 0.50, with a total content of ZrO 2 , TiO 2 , Y 2 O 3 , La 2 O 3 , Gd 2 O 3 , Nb 2 O 5 , and Ta 2 O 5 being more than 0 percent but equal to or less than 10 percent, and with a molar ratio {(ZrO 2 +TiO 2 +Y 2 O 3 +La 2 O 3 +Gd 2 O 3 +Nb 2 O 5 +Ta 2 O 5 )/Al 2 O 3 } being equal to or more than 0.40, as well as having a glass transition temperature of equal to or higher than 600° C., an average coefficient of linear expansion of equal to or higher than 70×10 −7 /° C. at 100 to 300° C., and a Young's modulus of equal to or higher than 80 GPa.

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Номер записи: 4

07-06-2012 дата публикации

Green luminescent glass for ultraviolet led and preparation method thereof

Номер: US20120138854A1

Автор: Mingjie Zhou, Wenbo Ma, Zhaopu Shi

Принадлежит: Mingjie Zhou, Wenbo Ma, Zhaopu Shi

A green luminescent glass for ultraviolet LED and a preparation method for glass are disclosed. The preparation method includes: weighing raw materials of CaCO 3 , Al 2 O 3 , SiO 2 , CeO 2 and Tb 4 O 7 respectively and mixing the raw materials evenly; melting the raw materials at 1500˜1700 for 0.5˜3 hours and then molding to form a glass; annealing the formed glass in reducing atmosphere with temperature of 650˜1050 for 3˜20 hours; and cooling the glass to room temperature to obtain the green luminescent glass for ultraviolet LED. The green luminescent glass for ultraviolet LED prepared according to the preparation method of the disclosure has advantages of high luminous intensity, uniformity and stability.

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Номер записи: 5

28-06-2012 дата публикации

Fining agents for silicate glasses

Номер: US20120159991A1

Автор: Matthew John Dejneka, Sinue Gomez

Принадлежит: Individual

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.

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Номер записи: 6

19-07-2012 дата публикации

Mineral fibres and their use

Номер: US20120183758A1

Автор: Dorthe Lybye, Eva Ravn Nielsen, Mette Solvang

Принадлежит: Individual

The invention relates to mineral fibres formed of a composition comprising the following oxides, by weight of composition: —SiO 2 35 to 43.5% —Al 2 O 3 18 to 22% —Fe 2 O 3 9 to 16% —CaO 8 to 17% —MgO 7 to 15% —Na 2 O+K 2 O 1 to 5% —MnO up to 2%.

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Номер записи: 7

20-09-2012 дата публикации

Glass-coated flexible polymeric substrates in photovoltaic cells

Номер: US20120237744A1

Автор: Damien Francis Reardon, Salah Boussaad

Принадлежит: EI Du Pont de Nemours and Co

The present disclosure relates to a method of manufacturing of a glass coated flexible polymeric substrate. This invention also relates to a coated flexible polymeric substrate that is suitable for manufacturing flexible solar cells and electronic devices.

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Номер записи: 8

04-10-2012 дата публикации

Tempered glass substrate and method of producing the same

Номер: US20120251827A1

Автор: Takashi Murata

Принадлежит: Individual

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.

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Номер записи: 9

27-12-2012 дата публикации

Use of a glass composition for making a solar collector with a glass-metal joint

Номер: US20120324952A1

Автор: Lorenzo Paolo Dante Fiorentini, Marco Soldani, Oliver Bellina

Принадлежит: Gerresheimer Pisa Spa

A glass composition for a tubular glass body used to form a glass-metal joint in a tubular solar collector. Includes a borosilicate glass having a dilatometric chart with a hard segment and a soft- segment hysteresis. The soft segment glass transition temperature is less than the hard-segment glass transition temperature for a temperature difference ΔT higher than 20° C. The composition comprises: 5% to 8% Na 2 O, O, 1% to 3% K 2 0, O, 1% to 1.5% CaO, 5% to 7.5% Al 2 0 3 , 70% to 75% Si0 2 , 11.6% to 13.7% B 2 0 3 , Owing and owing to the choice of the B 2 0 3 in the range indicated, in combination with the other components, there is a glass transition temperature lower than other borosilicate glasses. The remarkable difference between the soft and hard segments glass transition temperatures make it possible to obtain a tubular glass body particularly suitable for a solar collector.

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Номер записи: 10

27-12-2012 дата публикации

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

Номер: US20120328907A1

Автор: Kazuo Tachiwana, Kinobu Osakabe, Mikio Ikenishi, Xuelu Zou, Yoichi Hachitani

Принадлежит: Hoya Corp

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.

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Номер записи: 11

10-01-2013 дата публикации

Filtering structure, including plugging material

Номер: US20130011304A1

Автор: Matthias Schumann

Принадлежит: Saint Gobain Centre de Recherche et dEtudes Europeen SAS

Filter structure of the honeycomb type for filtering particulate-laden gases, said structure being characterized in that: a) the filtering walls of said honeycomb structure are made of a material having, after firing, an average thermal expansion coefficient, measured between 25 and 1100° C., of less than 2.5×10 −6 K −1 ; and b)the material constituting the plugs comprises: a filler formed from refractory grains, the melting temperature of which is above 1500° C., and the median diameter of which is between 5 and 50 microns; and a glassy binder phase.

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Номер записи: 12

17-01-2013 дата публикации

Method for producing glass substrate and glass substrate

Номер: US20130017366A1

Автор: Hisatoshi Aiba, Katsutoshi Fujiwara, Takahiro Kawaguchi, Yoshinari Kato

Принадлежит: Nippon Electric Glass Co Ltd

The present invention is aimed to provide a method for producing a glass substrate with a thickness of not more than 200 μm, which is satisfied with the quality required for a substrate on which a thin-film electric circuit is formed, and a sheet glass substrate obtained according to this method. The present invention is concerned with a method for producing a glass substrate having a sheet thickness of from 10 to 200 μm, including a forming step of forming a molten glass into a ribbon shape in accordance with a down draw method, an annealing step of annealing the glass ribbon, and a cutting step of cutting the glass ribbon to give a glass substrate, wherein an average cooling rate in a temperature range of from the (annealing point+200° C.) to the (annealing point+50° C.) is controlled to the range of from 300 to 2,500° C./min.

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Номер записи: 13

07-02-2013 дата публикации

Display cover glass and display

Номер: US20130034670A1

Автор: Kazuaki Hashimoto, Kinobu Osakabe, Youichi Hachitani

Принадлежит: Hoya Corp

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.

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Номер записи: 14

14-02-2013 дата публикации

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

Номер: US20130040169A1

Автор: Atsuko Morita, Mikio Ikenishi, Xuelu Zou

Принадлежит: Hoya Corp

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.

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Номер записи: 15

21-02-2013 дата публикации

Red-dyed glass and method for producing same

Номер: US20130045855A1

Автор: Johannes Maier, Stefan Prowatke

Принадлежит: D Swarovski KG

The invention relates to red-dyed glass, comprising the components of a base glass, coloring additives, reductants, and stabilizers, wherein the coloring additives comprise copper oxides and neodymium oxides and wherein the reductants comprise tin oxides and wherein the stabilizers comprise antimony oxides, wherein the fraction of the copper oxides in the red-dyed glass is between 0.02 and 0.08 weight percent.

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Номер записи: 16

14-03-2013 дата публикации

GLASS COMPOSITIONS HAVING HIGH THERMAL AND CHEMICAL STABILITY AND METHODS OF MAKING THEREOF

Номер: US20130065747A1

Автор: Danielson Paul Stephen, Ellison Adam James, Venkataraman Natesan

Принадлежит:

Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature. 2. The glass of claim 1 , wherein the glass exhibits a dimensional change of less than 30 ppm for a 5 minute heat treatment at 600° C.3. A liquid crystal display substrate comprising the glass of .4. A liquid crystal display substrate comprising the glass of .6. A liquid crystal display substrate comprising the glass of .7. A method for producing alkali-free glass sheets by a downdraw process comprising selecting claim 1 , melting claim 1 , and fining batch materials so that the glass making up the sheets has the composition of claim 1 , wherein:(a) the fining is performed without the use of substantial amounts of arsenic; and(b) a population of 50 sequential glass sheets produced by the downdraw process from the melted and fined batch materials has an average gaseous inclusion level of less than 0.10 gaseous inclusions/cubic centimeter, where each sheet in the population has a volume of at least 500 cubic centimeters.8. The method of wherein the downdraw process comprises a fusion draw process.9. The method of further comprising using the glass sheets as substrates for liquid crystal displays.10. A method for producing alkali-free glass sheets by a downdraw process comprising selecting claim 5 , melting claim 5 , and fining batch materials so that the glass making up the sheets has the composition of claim 5 , wherein:(a) the fining is performed without the use of substantial amounts of arsenic; and(b) a population of 50 sequential glass sheets produced by the downdraw process from the melted and fined batch materials has an average gaseous inclusion level of less than 0.10 gaseous inclusions/cubic centimeter, where each ...

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Номер записи: 17

14-03-2013 дата публикации

GLASS SUBSTRATE FOR FLAT PANEL DISPLAY AND MANUFACTURING METHOD THEREOF

Номер: US20130065748A1

Автор: AMI Satoshi, Ichikawa Manabu, KOYAMA Akihiro

Принадлежит: AVANSTRATE INC.

A flat panel display glass substrate includes a glass comprising, in mol %, 55-80% SiO, 3-20% AlO, 3-15% BO, and 3-25% RO (the total amount of MgO, CaO, SrO, and BaO). The contents in mol % of SiO, AlO, and BOsatisfy a relationship (SiO+AlO)/(BO)=7.5-17. The strain point of the glass is 665° C. or more. The devitrification temperature of the glass is 1250° C. or less. The substrate has a heat shrinkage rate of 75 ppm or less. The rate of heat shrinkage is calculated from the amount of shrinkage of the substrate measured after a heat treatment which is performed at a rising and falling temperature rate of 10° C./min and at 550° C. for 2 hours by the rate of heat shrinkage (ppm)={the amount of shrinkage of the substrate after the heat treatment/the length of the substrate before the heat treatment}×10. 1. A flat panel display glass substrate on which a p-Si TFT can be formed , the flat panel display glass substrate comprising a glass comprising , as expressed in mol %:{'sub': '2', '55-80% SiO;'}{'sub': 2', '3, '3-20% AlO;'}{'sub': 2', '3, '3-15% BO; and'}3-25% RO, where RO represents the total amount of MgO, CaO, SrO, and BaO, wherein{'sub': 2', '2', '3', '2', '3', '2', '2', '3', '2', '3, 'in the glass, the contents in mol % of SiO, AlO, and BOsatisfy a relationship (SiO+AlO)/(BO)=7.5-17,'}the strain point of the glass is 665° C. or more,the devitrification temperature of the glass is 1250° C. or less,the glass substrate has a rate of heat shrinkage of 75 ppm or less, and {'br': None, 'sup': '6', 'the rate of heat shrinkage (ppm)={the amount of shrinkage of the glass substrate after the heat treatment/the length of the glass substrate before the heat treatment}×10.'}, 'the rate of heat shrinkage is calculated from the amount of shrinkage of the glass substrate measured after a heat treatment which is performed at a rising and falling temperature rate of 10° C./min and at 550° C. for 2 hours by;'}2. A flat panel display glass substrate on which a p-Si TFT can be formed ...

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Номер записи: 18

28-03-2013 дата публикации

GLASS COMPOSITION FOR PROTECTING SEMICONDUCTOR JUNCTION, METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE

Номер: US20130075873A1

Автор: Ito Kazuhiko, Ito Koji, Ogasawara Atsushi

Принадлежит: SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.

Provided is a glass composition for protecting a semiconductor junction which contains at least SiO, AlO, ZnO, CaO and 3 mol % to 10 mol % of BO, and substantially contains none of Pb, P, As, Sb, Li, Na and K. It is preferable that a content of SiOfalls within a range of 32 mol % to 48 mol %, a content of AlOfalls within a range of 9 mol % to 13 mol %, a content of ZnO falls within a range of 18 mol % to 28 mol %, a content of CaO falls within a range of 15 mol % to 23 mol %, and a content of BOfalls within a range of 3 mol % to 10 mol %. 1. A glass composition for protecting a semiconductor junction , wherein the glass composition contains at least SiO , AlO , ZnO , CaO and 3 mol % to 10 mol % of BO , and substantially contains none of Pb , P , As , Sb , Li , Na and K.2. A glass composition for protecting a semiconductor junction according to claim 1 , wherein{'sub': '2', 'a content of SiOfalls within a range of 32 mol % to 48 mol %,'}{'sub': 2', '3, 'a content of AlOfalls within a range of 9 mol % to 13 mol %,'}a content of ZnO falls within a range of 18 mol % to 28 mol %,a content of CaO falls within a range of 15 mol % to 23 mol %, and{'sub': 2', '3, 'a content of BOfalls within a range of 3 mol % to 10 mol %.'}3. A method of manufacturing a semiconductor device comprising:a first step of preparing a semiconductor element having a pn junction exposure part where a pn junction is exposed; anda second step of forming a glass layer such that the glass layer covers the pn junction exposure part in this order, wherein{'sub': 2', '2', '3', '2', '3, 'in the second step, the glass layer is formed using a glass composition for protecting a semiconductor junction which contains at least SiO, AlO, ZnO, CaO and 3 mol % to 10 mol % of BO, and substantially contains none of Pb, P, As, Sb, Li, Na and K.'}4. A method of manufacturing a semiconductor device according to claim 3 , whereinthe first step includes: a step of preparing a semiconductor base body having a pn junction ...

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Номер записи: 19

11-04-2013 дата публикации

DAMAGE RESISTANT, CHEMICALLY TOUGHENED PROTECTIVE COVER GLASS

Номер: US20130086946A1

Автор: Glaesemann Gregory Scott, Price James Joseph, Sabia Robert, Shashidhar Nagaraja

Принадлежит:

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 ...

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Номер записи: 20

18-04-2013 дата публикации

DAMAGE RESISTANT, CHEMICALLY TOUGHENED PROTECTIVE COVER GLASS

Номер: US20130095310A1

Автор: Glaesemann Gregory Scott, Price James Joseph, Sabia Robert, Shashidhar Nagaraja

Принадлежит:

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 s measured by the lack of initiation of radial cracks when the load is applied to the glass using a Vickers indenter 1. A high strength , chemically toughened protective glass article , said protective glass article having a thickness less than or equal to 2.0 millimeters , a high damage tolerance threshold of at least 6000 g as measured by the lack of the presence of radial cracks when the load is applied to the glass using a Vickers indenter , and a compressive stress greater than 600 MPa.2. The glass article according to claim 1 , wherein said the glass of said cover glass is selected from the group consisting of alkali containing aluminosilicate glasses claim 1 , alkali containing aluminoborosilicate glasses claim 1 , alkali containing borosilicate glasses and alkali containing glass-ceramics.3. The glass article according to claim 1 , wherein the composition of the glass of said article comprising claim 1 , before any ion exchange to chemically strengthen claim 1 , 64 mol %≦SiO≦68 mol %; 12 mol %≦NaO≦16 mol %; 8 mol %≦AlO≦12 mol %; 0 mol %≦BO≦3 mol %; 2 mol %≦KO≦5 mol %; 4 mol %≦MgO≦6 mol %; and 0 mol %≦CaO≦5 mol % claim 1 , 0-0.5% (AsO claim 1 ,SnO); wherein: 66 mol %≦SiO+BO+CaO≦69 mol %; NaO+KO+BO+MgO+CaO+SrO>10 mol %; 5 mol %≦MgO+CaO+SrO≦8 mol %; (NaO+BO)—AlO≦2 mol %; 2 mol %≦NaO—AlO≦6 mol %; and 4 mol %≦(NaO+KO)—AlO≦10 mol %.4. The glass article according to claim 1 , wherein the composition of the glass of said article comprising claim 1 , before any ion exchange to chemically strengthen claim 1 , 64-68% SiO claim 1 , 10-12% AlO claim 1 , 0-2% BO claim 1 , 12-15% NaO claim 1 , 2-4% KO claim 1 , 5-7% MgO claim 1 , >0-1% CaO claim 1 , 0-0.5% (AsO claim 1 , ...

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Номер записи: 21

25-04-2013 дата публикации

METHOD FOR MANUFACTURING STRENGTHENED GLASS SUBSTRATE, AND STRENGTHENED GLASS SUBSTRATE

Номер: US20130101798A1

Автор: HASHIMOTO Kazuaki

Принадлежит: HOYA CORPORATION

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 ...

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Номер записи: 22

25-04-2013 дата публикации

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

Номер: US20130101980A1

Автор: Jeffrey J. Domey, Matthew W. Fenton

Принадлежит: Corning Inc

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.

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Номер записи: 23

02-05-2013 дата публикации

Method for sparkle control and articles thereof

Номер: US20130107370A1

Автор: Charles Warren Lander, II Alan Thomas Stephens, Kelvin Nguyen

Принадлежит: Corning Inc

A glass article including: at least one anti-glare surface having haze, distinctness-of-image, surface roughness, uniformity properties and sparkle properties, as defined herein. A method of making the glass article includes, for example, slot coating a suspension of particles on at least one surface of the article to provide a particulated mask covering from about 40 to 92% of the coated surface area; contacting the at least one surface of the article having the particulated mask and an etchant to form the anti-glare surface, and optionally continuously polishing the suspension of particles just prior to slot coating. A display system that incorporates the glass article, as defined herein, is also disclosed.

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Номер записи: 24

02-05-2013 дата публикации

Glass/carbon nanotube composite material for bone graft support

Номер: US20130108666A1

Автор: Jing Zhang

Принадлежит: Indiana University Research And Technology Corp

A composition for bone graft structural support, including a bioglass matrix and a plurality of carbon nanotubes dispersed throughout the bioglass matrix. The carbon nanotubes are generally cylindrical and are substantially between about 10 nanometer and about 20 nanometers in diameter and are substantially between about 5 nanometers and about 13 nanometers in length.

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Номер записи: 25

09-05-2013 дата публикации

GLASS PLATE

Номер: US20130115422A1

Автор: Murata Takashi

Принадлежит:

Provided is a glass sheet, comprising, as a glass composition in terms of mass %, 40 to 80% of SiO, 0 to 30% of AlO, 0 to 15% of BO, 0 to 25% of an alkali metal oxide (one kind or two or more kinds of LiO, NaO, and KO), and 0 to 15% of an alkaline earth metal oxide (one kind or two or more kinds of MgO, CaO, SrO, and BaO), and being used as a viewing zone control member for covering partially or wholly a two-dimensional display. 1. A glass sheet , comprising , as a glass composition in terms of mass % , 40 to 80% of SiO , 0 to 30% of AlO , 0 to 15% of BO , 0 to 25% of an alkali metal oxide , and 0 to 15% of an alkaline earth metal oxide , and being used as a viewing zone control member for covering at least partially a two-dimensional display.2. The glass sheet according to claim 1 , wherein the glass sheet has a convex/concave portion in at least one surface.3. The glass sheet according to claim 2 , wherein the convex/concave portion has an Rsm of 10 to 500 μm.4. The glass sheet according to claim 1 , wherein claim 1 , when the glass sheet is subjected to processing at a feed rate of 10 mm/min at a feed per revolution of 0.015 mm by using a #200 electric drill with a diameter of 1.4 mm claim 1 , a size of a chipping produced is less than 500 μm.5. The glass sheet according to claim 1 , wherein the glass sheet has a total light transmittance of 89% or more at a thickness of 1 mm and a wavelength of 400 to 700 nm.6. The glass sheet according to claim 1 , wherein the glass sheet has a compression stress layer in its surface.7. The glass sheet according to claim 6 , wherein a compression stress value of the compression stress layer is 100 MPa or more.8. The glass sheet according to claim 6 , wherein a depth of the compression stress layer is 20 μm or more.9. The glass sheet according to claim 1 , wherein the glass sheet has a liquidus temperature of 1 claim 1 ,200° C. or less.10. The glass sheet according to claim 1 , wherein the glass sheet has a liquidus viscosity ...

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Номер записи: 26

16-05-2013 дата публикации

Opal glasses for light extraction

Номер: US20130119356A1

Автор: Adam James Ellison, George Halsey Beall, Glenn Eric Kohnke, Ivan A. Cornejo, Lisa Ann Lamberson

Принадлежит: Corning Inc

Opal glass compositions and devices incorporating opal glass compositions are described herein. The compositions solve problems associated with the use of opal glasses as light-scattering layers in electroluminescent devices, such as organic light-emitting diodes. In particular, embodiments solve the problem of high light absorption within the opal glass layer as well as the problem of an insufficiently high refractive index that results in poor light collection by the layer. Particular devices comprise light-emitting diodes incorporating light scattering layers formed of high-index opal glasses of high light scattering power that exhibit minimal light attenuation through light absorption within the matrix phases of the glasses.

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Номер записи: 27

16-05-2013 дата публикации

ION EXCHANGEABLE GLASS WITH HIGH CRACK INITIATION THRESHOLD

Номер: US20130122284A1

Автор: Gross Timothy Michael

Принадлежит:

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 ...

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Номер записи: 28

16-05-2013 дата публикации

ION EXCHANGEABLE GLASS WITH HIGH CRACK INITIATION THRESHOLD

Номер: US20130122313A1

Автор: Gross Timothy Michael

Принадлежит:

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 ...

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Номер записи: 29

23-05-2013 дата публикации

Colored glass housing

Номер: US20130128434A1

Автор: Hiroyuki Yamamoto, Kazuhide Kuno

Принадлежит: Asahi Glass Co Ltd

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.

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Номер записи: 30

23-05-2013 дата публикации

Li2O-Al2O3-SiO2-BASED CRYSTALLIZED GLASS

Номер: US20130130887A1

Автор: Kosuke Kawamoto, Shingo Nakane

Принадлежит: Nippon Electric Glass Co Ltd

Provided is a Li 2 O—Al 2 O 3 —SiO 2 -based crystallized glass, comprising, as a composition in terms of mass %, 55 to 75% of SiO 2 , 20.5 to 27% of Al 2 O 3 , 2% or more of Li 2 O, 1.5 to 3% of TiO 2 , 3.8 to 5% of TiO 2 +ZrO 2 , and 0.1 to 0.5% of SnO 2 , and satisfying the relationships of 3.7≦Li 2 O+0.741MgO+0.367ZnO≦4.5 and SrO+1.847CaO≦0.5.

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Номер записи: 31

06-06-2013 дата публикации

COMPOSITIONS AND METHODS TO FABRICATE A PHOTOACTIVE SUBSTRATE SUITABLE FOR SHAPED GLASS STRUCTURES

Номер: US20130142998A1

Автор: Buckley Colin T., Flemming Jeb H., Schmidt Carrie F.

Принадлежит: LIFE BIOSCIENCE, INC.

A shaped photosensitive glass composition comprising silica, KO, NaO, AgO, BO, AlO, LiO, and CeOwith a high anisotropic-etch ratio formed by a novel construction method. Furthermore, such shaped glass structures can be used to form a negative mold for casting the shape in other materials. Structures of the photosensitive glass composition may include micro-channels, micro-optics, microposts, or arrays of hollow micro-needles. 1. A shaped glass structure with a high anisotropic-etch ratio comprising:a photosensitive glass substrate with a glass transformation temperature, wherein the photosensitive glass substrate comprises:a glass composition comprising60-76 weight % silica,{'sub': 2', '2, '6 weight %-16 weight % of a combination of KO and NaO with'}{'sub': '2', 'at least 3 weight % KO,'}{'sub': '2', '0.001-1 weight % AgO,'}{'sub': 2', '3, '0.75 weight %-7 weight % BO, and'}{'sub': 2', '3', '2', '3', '2', '3, '5-8 weight % AlO, with the combination of BO, and AlOnot exceeding 13 weight %,'}{'sub': '2', '8-15 weight % LiO, and'}{'sub': '2', '0.04-0.1 weight % CeO, and'}one or more patterned structure.2. The shaped glass structure of claim 1 , wherein the patterned structure comprises at least one portion exposed to an activating energy source claim 1 , such as ultraviolet light claim 1 , while leaving at least a second portion of the glass substrate unexposed claim 1 , wherein at least a part of the exposed portion is a crystalline material formed by heating the glass substrate to a temperature near the glass transformation temperature claim 1 , wherein when etching the glass substrate in an etchant claim 1 , the anisotropic-etch ratio of the exposed portion to the unexposed portion is at least 30:1 when the glass is exposed to a broad spectrum mid-ultraviolet flood lamp claim 1 , to provide a shaped glass structure with an aspect ratio of at least 30:1 claim 1 , and to provide shaped glass structures with an aspect ratio much greater than 30:1 when the glass is ...

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Номер записи: 32

20-06-2013 дата публикации

MIRROR FOR CONCENTRATING SOLAR POWER DEVICES

Номер: US20130152633A1

Автор: Lucatello Luciano

Принадлежит: REFLEX SPA

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. ...

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Номер записи: 33

27-06-2013 дата публикации

COVER GLASS FOR SEMICONDUCTOR PACKAGE AND PRODUCTION METHOD THEREOF

Номер: US20130165312A1

Автор: Komai Takako, Murata Takashi, Yodogawa Masahiro

Принадлежит: NIPPON ELECTRIC GLASS CO., LTD.

A cover glass for semiconductor package having thermal expansion coefficient conformable to plastic packages and allowing accurate detection of existence of foreign substances, dusts, etc. in an imaging test always having a low emission amount of alpha-ray, and a related production method. The cover glass comprises, in terms of percentage by mass, of from 58 to 75% of SiO, of from 1.1 to 20% of AlO, of from 0 to 10% of BO, of from 0.1 to 20% of NaO, of from 0 to 11% of KO, and of from 0 to 20% of alkaline earth metal oxide. The cover glass has average thermal expansion coefficient of from 90 to 180×10/° C. in the temperature range of from 30 to 380° C., a Young's modulus of 68 GPa or more, and an emission amount of alpha-ray from the glass of 0.05 c/cm·hr or less. 1. A cover glass for semiconductor package , comprising , in terms of percentage by mass , from 58 to 75% of SiO , from 1.1 to 20% of AlO , from 0 to 10% of BO , from 0.1 to 20% of NaO , from 0 to 11% of KO , and from 0 to 20% of alkaline earth metal oxides , wherein the cover glass has an average thermal expansion coefficient of from 90 to 180×10/° C. in the temperature range of from 30 to 380° C. , a Young's modulus of 68 GPa or more , and an emission amount of alpha-ray from the glass of 0.05 c/cm·hr or less.2. The cover glass for semiconductor package according to claim 1 , wherein the cover glass has a U content of 100 ppb or less and a Th content of 200 ppb or less.3. The cover glass for semiconductor package according to claim 1 , wherein the cover glass does not substantially contain ZrO claim 1 , AsO claim 1 , and BaO.4. The cover glass for semiconductor package according to claim 1 , wherein the cover glass comprises a total amount of alkali metal oxides and alkaline earth metal oxides of from 21 to 35% by mass.5. The cover glass for semiconductor package according to claim 1 , wherein the viscosity of the cover glass at the liquidus temperature is 10dPa·s or more.6. The cover glass for ...

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Номер записи: 34

18-07-2013 дата публикации

GLASS SHEET

Номер: US20130183512A1

Автор: Gy René, Obame Hugues, Sellier Julien

Принадлежит: SAINT-GOBAIN GLASS FRANCE

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 ...

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Номер записи: 35

25-07-2013 дата публикации

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

Номер: US20130186140A1

Автор: Alkemper Jochen, Beier Wolfram, Brix Peter

Принадлежит: SCHOTT AG

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 ...

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Номер записи: 36

25-07-2013 дата публикации

THIN LITHIUM-ALUMINOSILICATE GLASS FOR THREE DIMENSIONAL PRECISION MOLDING

Номер: US20130189486A1

Автор: HE Feng, Lautenschlaeger Gerhard, Vogl Armin, Wang Chong, Zimmer José

Принадлежит: SCHOTT GLASS TECHNOLOGIES (SUZHOU) CO., LTD.

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 ...

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Номер записи: 37

01-08-2013 дата публикации

GLASS COMPOSITIONS, DIELECTRIC COMPOSITIONS AND MULTILAYER CERAMIC CAPACITOR HAVING HIGH CAPACITANCE USING THE SAME

Номер: US20130196159A1

Автор: OH Young Joo, YOON Jung Rag

Принадлежит: SAMHWA CAPACITOR CO., LTD.

Disclosed are a glass composition and a dielectric composition enabling low temperature sintering, and a high capacitance multilayer ceramic capacitor using the same. In the glass composition used for sintering, the glass composition may be formed of a formula, aRO-bCaO-cZnO-dBaO-eBO-fAlO-gSiO, and the formula may satisfy a+b+c+d+e+f+g=100, 0≦a≦7, 1≦b≦3, 1≦c≦15, 10≦d≦20, 3≦e≦10, 0≦f≦3, and 55≦g≦72. Through this, when manufacturing the high capacity multilayer ceramic capacitor, the dielectric substance may enable the lower temperature sintering, thereby enhancing a capacitance and a reliability of the high capacitance multilayer ceramic capacitor. 1. A glass composition used for sintering , wherein the glass composition is formed of a formula , aRO-bCaO-cZnO-dBaO-eBO-fAlO-gSiO , and the formula satisfies a+b+c+d+e+f+g=100 , 0≦a≦7 , 1≦b≦3 , 1≦c≦15 , 10≦d≦20 , 3≦e≦10 , 0≦f≦3 , and 55≦g≦72.2. The glass composition of claim 1 , wherein the glass composition corresponds to a spherical nano powder having an average grain size of 30 nm to 200 nm.3. The glass composition of claim 2 , wherein the spherical nano powder is spheroidized or vaporized by performing thermal plasma processing of a glass powder having a size of 0.2 μm to 30 μm.4. The glass composition of claim 3 , wherein a temperature of the thermal plasma processing is 3000° C. to 8000° C.5. The glass composition of claim 4 , wherein a radio frequency (RF) plasma torch is used for the thermal plasma processing. This application claims the benefit of Korean Patent Application No. 10-2010-0086481, filed on Sep. 3, 2010, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.1. Field of the InventionThe present invention relates to a glass composition, a dielectric composition, and a high capacitance multilayer ceramic capacitor using the same, and more particularly, to a glass composition and a dielectric composition enabling low temperature sintering, and a high ...

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Номер записи: 38

08-08-2013 дата публикации

REINFORCED PLATE GLASS AND METHOD FOR MANUFACTURING THE SAME

Номер: US20130199241A1

Автор: SAWADA Masahiro

Принадлежит: NIPPON ELECTRIC GLASS CO., LTD.

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 ...

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Номер записи: 39

08-08-2013 дата публикации

ALUMINOSILICATE GLASS FOR TOUCH SCREEN

Номер: US20130202715A1

Автор: Wang Chong, Zimmer José

Принадлежит:

An aluminosilicate glass for touch screens is provided. The glass includes, calculated based on weight percentage: SiO, 55 to 65%; NaO, 12 to 17%; AlO, 15 to 20%; KO, 2 to 6%; MgO, 3.9 to 10%; ZrO, 0 to 5%; ZnO, 0 to 4%; CaO, 0 to 4%; NaO+KO+MgO+ZnO+CaO, 15 to 28%; SnO, 0 to 1%; TiO+CeO, ≦1%. A chemical strengthening method for glass also provided that includes ion exchange strengthening in a 100% KNOsalt bath, wherein a preheating temperature ranges from 370° C. to 430° C. and the treatment time is from 0.5 to 16 hours. 174-. (canceled)76. The aluminosilicate glass according to claim 75 , wherein SiOhas an amount of 58 to 63 wt %.77. The aluminosilicate glass according to claim 75 , wherein NaO has an amount of greater than 12 to 15 wt %.78. The aluminosilicate glass according to claim 75 , wherein KO has an amount of 3 to 5 wt %.79. The aluminosilicate glass according to claim 75 , wherein AlOhas an amount of greater than 15 to 17 wt %.80. The aluminosilicate glass according to claim 75 , wherein MgO has an amount of 3.9 to 8.0 wt %.81. The aluminosilicate glass according to claim 75 , wherein ZnO and CaO each have an amount of lower than 2 wt %.82. The aluminosilicate glass according to claim 75 , wherein ZrOhas an amount of 0.1 to 3 wt %.83. The aluminosilicate glass according to claim 75 , wherein the sum of the amounts of components NaO+KO+MgO+ZnO+CaO is 15 to 25 wt %.84. The aluminosilicate glass according to claim 75 , wherein the aluminosilicate glass has been subjected to ion exchange strengthening in a 100% KNOsalt bath for a period of time from 0.5 to 16 hours after preheating to a temperature from 370° C. to 430° C.85. The aluminosilicate glass according to claim 84 , wherein the temperature ranges from 390 to 410° C. and the treatment time ranges from 1 to 3 hours.86. The aluminosilicate glass according to claim 84 , wherein claim 84 , after ion exchange claim 84 , the aluminosilicate glass has a compressive stress of 600 to 1000 MPa.87. The ...

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Номер записи: 40

15-08-2013 дата публикации

Arsenic and antimony free, titanium oxide containing borosilicate glass and methods for the production thereof

Номер: US20130207058A1

Автор: Holger Wegener, Lenka Grygarova, Rainer Schwertfeger, Reinhard Kassner

Принадлежит: SCHOTT AG

Titanium oxide containing borosilicate glasses, which have been produced without the use of arsenic and antimony compounds, are provided. An environmentally friendly refining method for providing titanium oxide containing borosilicate glass is also provided. The method includes using oxygen containing selenium compounds as refining agents to provide glasses with good transmittance values in the infrared range and show no disturbing discolorations. The glasses of the present disclosure are particularly suitable for the production of IR light conductors, cover glasses for photo sensors, and UV filters.

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Номер записи: 41

22-08-2013 дата публикации

METHOD OF MANUFACTURING GLASS SUBSTRATE AND INFORMATION RECORDING MEDIUM

Номер: US20130213091A1

Автор: IKEDA Hiroaki, Mukai Yumi, OZAWA Jun, Sasaki Kazuna, SUZUKI Masaru

Принадлежит:

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 ...

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Номер записи: 42

22-08-2013 дата публикации

Alkali-Free Glass for Flat Panel Display and Melting Process Thereof

Номер: US20130217561A1

Автор: Dacheng Wang, Guohong Yang, Zifa Duan

Принадлежит: Irico Group Corp

An alkali-free glass for flat panel display consists of, by weight, 54-68% SiO 2 , 10.8-17.1% Al 2 O 3 , 7.6-12.5% B 2 O 3 , 0.2-1.8% MgO, 4.2-8% CaO, 0.6-7.1% SrO, 0.1-5% BaO, 0.2-1% ZnO, 0.01-1.54% ZrO 2 and 0.1-1.3% SnO+SnO 2 . The boroaluminosilicate glass of the present invention does not contain As and Sb which contribute to serious environmental pollution. The quality of the glass is improved by the specific process which reduces the content of the gas inclusions in the glass.

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Номер записи: 43

29-08-2013 дата публикации

COUNTER-CURRENT CONTINUOUS ION-EXCHANGE METHOD FOR STRENGTHENING GLASS ARTICLES

Номер: US20130219965A1

Автор: Allan Douglas Clippinger, Gomez Sinue, Johnson William Weston, Kim Hongkyu, Ozturk Alper, Peng Gaozhu

Принадлежит: CORNING INCORPORATED

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 , ...

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Номер записи: 44

29-08-2013 дата публикации

METHOD OF MANUFACTURING CHEMICALLY STRENGTHENED GLASS PLATE

Номер: US20130219966A1

Автор: Hasegawa Satoshi, MATSUDA Yu, Mitamura Naoki, MURAMOTO Tadashi, Tsuzuki Tatsuya

Принадлежит: CENTRAL GLASS COMPANY, LIMITED

[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 ...

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Номер записи: 45

29-08-2013 дата публикации

ION EXCHANGED GLASSES VIA NON-ERROR FUNCTION COMPRESSIVE STRESS PROFILES

Номер: US20130224492A1

Автор: Bookbinder Dana Craig, Fiacco Richard Michael, Gross Timothy Michael, Logunov Stephan Lvovich

Принадлежит: CORNING INCORPORATED

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 , ...

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Номер записи: 46

29-08-2013 дата публикации

Li2O-Al2O3-SiO2 CRYSTALLIZABLE GLASS AND Li2O-AI2O3-SiO2 CRYSTALLIZED GLASS OBTAINED BY CRYSTALLIZING SAME

Номер: US20130225388A1

Автор: Kawamoto Kosuke, Nakane Shingo

Принадлежит: NIPPON ELECTRIC GLASS CO., LTD.

Provided is a LiO—AlO—SiO-based crystallizable glass characterized by comprising, as a glass composition in terms of mass %, 55 to 75% of SiO, 19 to 24% of AlO, 3 to 4% of LiO, 1.5 to 2.8% of TiO, 3.8 to 4.8% of TiO+ZrO, and 0.1 to 0.5% of SnO, and satisfying a relationship of 4≦LiO+0.741MgO+0.367ZnO≦4.5. 1. A LiO—AlO—SiO-based crystallizable glass , comprising , as a glass composition in terms of mass % , 55 to 75% of SiO , 19 to 24% of AlO , 3 to 4% of LiO , 1.5 to 2.8% of TiO , 3.8 to 4.8% of TiO+ZrO , and 0.1 to 0.5% of SnO , and satisfying a relationship of 4≦LiO+0.741MgO+0.367ZnO≦4.5.2. The LiO—AlO—SiO-based crystallizable glass according to claim 1 , wherein the LiO—AlO—SiO-based crystallizable glass is manufactured by float forming.3. The LiO—AlO—SiO-based crystallizable glass according to claim 1 , further comprising 0.05 to 1.5% of BO.4. The LiO—AlO—SiO-based crystallizable glass according to claim 1 , comprising 0.1% or more of MgO.5. The LiO—AlO—SiO-based crystallizable glass according to claim 1 , further comprising 0.2% or less of NdO.6. The LiO—AlO—SiO-based crystallizable glass according to claim 1 , further comprising 60 to 300 ppm of FeO.7. A LiO—AlO—SiO-based crystallized glass claim 1 , which is obtained by crystallizing the LiO—AlO—SiO-based crystallizable glass according to .8. The LiO—AlO—SiO-based crystallized glass according to claim 7 , wherein the LiO—AlO—SiO-based crystallized glass claim 7 , at a thickness of 3 mm claim 7 , has a b* value of 4.5 or less in terms of L*a*b* representation based on a CIE standard.9. The LiO—AlO—SiO-based crystallized glass according to claim 7 , wherein the LiO—AlO—SiO-based crystallized glass claim 7 , at a thickness of 1.1 mm claim 7 , has a transmittance of 82.5% or more at a wavelength of 400 nm.102510251030. The LiO—AlO—SiO-based crystallized glass according to claim 7 , wherein the LiO—AlO—SiO-based crystallized glass has a thermal expansion coefficient of −.×/° C. to .×/° C. at to 380° C.11. A ...

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Номер записи: 47

29-08-2013 дата публикации

BOROSILICATE GLASS COMPOSITION FOR PRODUCING GLASS TUBES AND ITS USE FOR PRODUCING GLASS TUBES AND AS OUTER TUBE FOR LAMPS

Номер: US20130225389A1

Автор: Dick Erhard, Fechner Joerg Hinrich

Принадлежит: SCHOTT AG

A glass composition and its use for producing glass tubes is provided. The glass tubes having the provided composition are particularly suitable for the outer tubes of fluorescent lamps in the case of which a phosphor layer is baked at temperatures of up to 700° C. The tubes composed of the glass of the provided composition have a lower tendency to deform or stick together when processed at high temperatures. To obtain the observed effects, the molar ratio of NaO/(NaO+KO), inter alia, is greater than 0.4 and not more than 0.72. 1. A borosilicate glass comprising , in mol % on an oxide basis:{'sub': '2', 'SiO74-81;'}{'sub': 2', '3, 'BO8.5-14.5;'}{'sub': 2', '3, 'AlO0.5-3.5;'}{'sub': '2', 'NaO 1.5-3.5;'}{'sub': '2', 'KO 1.0-2.0;'}{'sub': '2', 'LiO 0-1.0MgO 0.5-1.5;CaO 0.5-1.5;BaO 0-0.6;{'sub': '2', 'TiO2.0-3.5;'}{'sub': '2', 'ZrO0-1.0, and as refining agents'}{'sub': 2', '3, 'SnOO0-0.15;'}{'sub': '2', 'CeO0-0.5; and'}{'sub': 2', '2', '2', '2, 'SnO0-0.5, and having a molar ratio of NaO/(NaO+KO) that is greater than 0.4, but less than or equal to 0.72.'}2. The borosilicate glass according to claim 1 , wherein the molar ratio is less than 0.70.3. The borosilicate glass according to claim 1 , further comprising a softening temperature at which log(η) equals 12 is at least 570° C.4. The borosilicate glass according to claim 1 , further comprising a softening temperature at which log(η) equals 12 is between 580° C. and 620° C.5. The borosilicate glass according to claim 1 , further comprising a molar ratio of BO/(BO+Σ alkali metal oxides) that is less than or equal to 0.76.6. The borosilicate glass according to claim 1 , further comprising a molar ratio of BO/(BO+Σ alkali metal oxides) that is from 0.6 to 0.7.7. The borosilicate glass according to claim 1 , further comprising a molar ratio of SiO/AlOthat is less than 105.8. The borosilicate glass according to claim 1 , further comprising a molar ratio of SiO/AlOthat is from 70 to 100.9. The borosilicate glass according to ...

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Номер записи: 48

29-08-2013 дата публикации

HIGH STRAIN POINT ALUMINOSILICATE GLASSES

Номер: US20130225390A1

Автор: Ellison Adam James, Kiczenski Timothy James, Markham Shawn Rachelle, Mauro John Christopher

Принадлежит:

Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs) and active matrix organic light emitting diode displays (AMOLEDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature. 1. A glass substantially free of alkalis comprising , in mole percent on an oxide basis: SiO69-72.5 , AlO11-13.5 , BO1-5 , MgO 3-5 , CaO 4-6.5 , SrO 0-3 , BaO 1.5-5 , where SiO , AlO , BO , MgO , CaO , SrO and BaO represent the mole percents of the oxide components.2. The glass of wherein 1.05≦(MgO+CaO+SrO+BaO)/AlO≦1.4 claim 1 , where AlO claim 1 , MgO claim 1 , CaO claim 1 , SrO and BaO represent the mole percents of the oxide components.3. The glass of wherein 0.2≦MgO/(MgO+CaO+SrO+BaO)≦0.35 claim 1 , where MgO claim 1 , CaO claim 1 , SrO and BaO represent the mole percents of the oxide components.4. The glass of wherein 0.65≦(CaO+SrO+BaO)/AlO≦0.95 claim 1 , where AlO claim 1 , CaO claim 1 , SrO and BaO represent the mole percents of the oxide components.5. The glass of containing 0.01 to 0.4 mol % of any one or combination of SnO claim 1 , AsO claim 1 , or SbO claim 1 , F claim 1 , Cl or Br as a chemical fining agent.6. The glass of containing 0.005 to 0.2 mol % of any one of combination of FeO claim 1 , CeO claim 1 , or MnOadded as a chemical fining agent.7. The glass of claim 1 , wherein the glass has an annealing point greater than 765° C.8. The glass of claim 1 , wherein the glass has an annealing point greater than 775° C.9. The glass of claim 1 , wherein the glass has an annealing point greater than 785° C.10. The glass of claim 1 , wherein the glass satisfies the following: T−T>0.25 T−225° C.11. The glass of claim 1 , wherein the liquidus viscosity is greater than about 200 claim 1 ,000 poise.12. The glass of claim 1 , wherein the liquidus viscosity is ...

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Номер записи: 49

05-09-2013 дата публикации

HIGH-REFRACTIVE-INDEX GLASS

Номер: US20130230692A1

Автор: Murata Takashi, YANASE Tomoki

Принадлежит:

Provided is a high refractive index glass, comprising, as a glass composition in terms of mass %, 0.1 to 60% of SiO+AlO+BO, having a mass ratio (BaO+LaO+NbO+TiO+ZrO)/(SiO+AlO+BO) of 0.1 to 50, amass ratio (MgO+CaO+SrO+BaO)/(BaO+LaO+NbO+TiO+ZrO) of 0 to 10, and a mass ratio (TiO+ZrO)/(BaO+LaO+NbO) of 0.001 to 40, and having a refractive index nd of 1.55 to 2.3. 1. A high refractive index glass , comprising , as a glass composition in terms of mass % , 0.1 to 60% of SiO+AlO+BO , having a mass ratio (BaO+LaO+NbO+TiO+ZrO)/(SiO+AlO+BO) of 0.1 to 50 , a mass ratio (MgO+CaO+SrO+BaO)/(BaO+LaO+NbO+TiO+ZrO) of 0 to 10 , and a mass ratio (TiO+ZrO)/(BaO+LaO+NbO) of 0.001 to 40 , and having a refractive index nd of 1.55 to 2.3.2. The high refractive index glass according to claim 1 , wherein the high refractive index glass has a liquidus viscosity of 10dPa·s or more.3. The high refractive index glass according to claim 1 , wherein the high refractive index glass has a sheet shape.4. The high refractive index glass according to claim 3 , wherein the high refractive index glass is formed by one of an overflow down-draw method and a slot down-draw method.5. The high refractive index glass according to claim 3 , wherein the high refractive index glass comprises at least one unpolished surface claim 3 , the unpolished surface having a surface roughness Ra of 10 Å or less.611-. (canceled)12. A high refractive index glass claim 3 , comprising claim 3 , as a glass composition in terms of mass % claim 3 , 10 to 60% of SiO claim 3 , 0 to 5% of BO claim 3 , 0.1 to 60% of BaO claim 3 , 0.1 to 40% of LaO+NbO claim 3 , and 0 to 10% of LiO+NaO+KO claim 3 , having a value for a mass ratio (MgO+CaO)/(SrO+BaO) of 0 to 0.5 claim 3 , and having a strain point of 600° C. or more and a refractive index nd of 1.55 to 2.3.13. The high refractive index glass according to claim 12 , wherein the high refractive index glass has a liquidus viscosity of 10dPa·s or more.14. The high refractive index glass ...

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Номер записи: 50

05-09-2013 дата публикации

Glass Substrate For Information Recording Medium

Номер: US20130231236A1

Автор: Kajita Hiroshi, KAWAI Hideki, Mori Toshiharu, Oogaki Akio

Принадлежит: Konica Minolta Advanced Layers, Inc.

The present invention relates to the glass substrate for an information recording medium comprising the following glass components: SiO: 52 to 67; AlO: 8 to 20; BO: 0 to 6, with these three oxides FMO: 70 to 85; LiO: 0.5 to 4; NaO: 1 to 8; KO: 0 to 5; and with these three oxides R2O: 5 to 15; MgO: 2 to 9; CaO: 0.1 to 5; BaO: 0 to 3; SrO: 0 to 3; ZnO: 0 to 5; and with these five oxides: 5 to 15; YO: 0 to 4; LaO: 0 to 4; GdO: 0 to 4; CeO: 0 to 4; TiO: 1 to 7; HfO: 0 to 2; ZrO: 0 to 5; NbO: 0.2 to 5; and TaO: 0 to 5, and satisfies LiO/R2O: 0.05 to 0.35; LiO/FMO: 0.005 to 0.035; LiO/(MgO+ZnO): less than 2 and NbO/SiO: 0.01 to 0.075. 1. A glass substrate for an information recording medium , comprising the following glass components in % by weight:{'sub': '2', 'SiO: 52 to 67%;'}{'sub': 2', '3, 'AlO: 8 to 20%;'}{'sub': 2', '3, 'BO: 0 to 6% (including zero);'}{'sub': 2', '2', '3', '2', '3, '(wherein FMO═SiO+AlO+BO=70 to 85%);'}{'sub': '2', 'LiO: 0.5 to 4%;'}{'sub': '2', 'NaO: 1 to 8%;'}{'sub': '2', 'KO: 0 to 5% (including zero);'}{'sub': 2', '2', '2, '(wherein R2O═LiO+NaO+KO=5 to 15%);'}MgO: 2 to 9%;CaO: 0.1 to 5%;BaO: 0 to 3% (including zero);SrO: 0 to 3% (including zero);ZnO: 0 to 5% (including zero);(wherein MgO+CaO+BaO+SrO+ZnO=5 to 15%);{'sub': 2', '3, 'YO: 0 to 4% (including zero);'}{'sub': 2', '3, 'LaO: 0 to 4% (including zero);'}{'sub': 2', '3, 'GdO: 0 to 4% (including zero);'}{'sub': '2', 'CeO: 0 to 4% (including zero);'}{'sub': '2', 'TiO: 1 to 7%;'}{'sub': '2', 'HfO: 0 to 2% (including zero);'}{'sub': '2', 'ZrO: 0 to 5% (including zero);'}{'sub': 2', '5, 'NbO: 0.2 to 5%; and'}{'sub': 2', '5, 'TaO: 0 to 5% (including zero); and'} [{'br': None, 'sub': '2', 'LiO/R2O: 0.05 to 0.35\u2003\u2003(1),'}, {'br': None, 'sub': '2', 'LiO/FMO: 0.005 to 0.035\u2003\u2003(2),'}, {'br': None, 'sub': '2', 'LiO/(MgO+ZnO): less than 2\u2003\u2003(3) and'}, {'br': None, 'sub': 2', '5', '2, 'NbO/SiO: 0.01 to 0.075\u2003\u2003(4).'}], 'satisfying the following composition relation ...

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Номер записи: 51

12-09-2013 дата публикации

GLASS WITH SURFACE AND CENTRAL REGIONS UNDER COMPRESSION

Номер: US20130236666A1

Автор: Bookbinder Dana Craig, Gross Timothy Michael

Принадлежит:

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 ...

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Номер записи: 52

12-09-2013 дата публикации

ALKALI-FREE GLASS

Номер: US20130237401A1

Автор: Kawaguchi Takahiro, Miwa Shinkichi

Принадлежит:

Provided is an alkali-free glass, comprising, as a glass composition in terms of mass %, 58 to 70% of SiO, 15.5 to 20% of AlO, 0 to 1% of BO, 0 to 5% of MgO, 3.5 to 16% of CaO, 0.5 to 6.5% of SrO, and 5 to 15% of BaO, being substantially free of alkali metal oxides, and having a strain point of more than 725° C. 1. An alkali-free glass , comprising , as a glass composition in terms of mass % , 58 to 70% of SiO , 15.5 to 20% of AlO , 0 to 1% of BO , 0 to 5% of MgO , 3.5 to 16% of CaO , 0.5 to 6.5% of SrO , and 5 to 15% of BaO , being substantially free of alkali metal oxides , and having a strain point of more than 725° C.2. The alkali-free glass according to claim 1 , wherein the alkali-free glass is substantially free of BO.3. The alkali-free glass according to claim 1 , further comprising 0.001 to 1 mass % of SnOin the glass composition.4. The alkali-free glass according to claim 1 , wherein the alkali-free glass has a Young's modulus of more than 78 GPa.5. The alkali-free glass according to claim 1 , wherein the alkali-free glass has a Young's modulus/density of more than 29.5 GPa/g·cm.6. The alkali-free glass according to claim 1 , wherein the alkali-free glass has a liquidus temperature of less than 1250° C.7. The alkali-free glass according to claim 1 , wherein the alkali-free glass has a temperature at 10poise of 1660° C. or less.8. The alkali-free glass according to claim 1 , wherein the alkali-free glass has a viscosity at a liquidus temperature of 10poise or more.9. The alkali-free glass according to claim 1 , wherein the alkali-free glass is formed by an overflow down-draw method.10. The alkali-free glass according to claim 1 , wherein the alkali-free glass is used for an OLED display. The present invention relates to an alkali-free glass, and more particularly, to an alkali-free glass suitable for an OLED display.Electronic devices such as an OLED display, which are thin, excellent in movie display performance, and low in power consumption, are used for ...

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Номер записи: 53

19-09-2013 дата публикации

ALKALI-FREE GLASS

Номер: US20130244859A1

Автор: Kawaguchi Takahiro, Miwa Shinkichi

Принадлежит:

Provided is an alkali-free glass, which is substantially free of alkali metal oxides, and has a strain point of more than 680° C., an average coefficient of thermal expansion in the temperature range of 30 to 380° C. of 40 to 55×10/° C., and a liquidus temperature of less than 1,200° C. Further, the alkali-free glass comprises, as a glass composition in terms of mass %, 55 to 70% of SiO, 10 to 20% of AlO, 0.1 to 4.5% of BO, 0 to 1% of MgO, 5 to 15% of CaO, 0.5 to 5% of SrO, and 5 to 15% of BaO. 1. An alkali-free glass , which is substantially free of alkali metal oxides , and has a strain point of more than 680° C. , an average coefficient of thermal expansion in a temperature range of 30 to 380° C. of 40 to 60×10/° C. , and a liquidus temperature of less than 1 ,220° C.2. The alkali-free glass according to claim 1 , wherein the alkali-free glass comprises claim 1 , as a glass composition in terms of mass % claim 1 , 55 to 70% of SiO claim 1 , 10 to 20% of AlO claim 1 , 0.1 to 4.5% of BO claim 1 , 0 to 1% of MgO claim 1 , 5 to 15% of CaO claim 1 , 0.5 to 5% of SrO claim 1 , and 5 to 15% of BaO.3. The alkali-free glass according to claim 1 , wherein the alkali-free glass has a molar ratio SiO/AlOof 4.5 to 8.4. The alkali-free glass according to claim 1 , wherein the alkali-free glass has a molar ratio CaO/BaO of 0.5 to 10.5. The alkali-free glass according to claim 1 , wherein the alkali-free glass further comprises 0.001 to 1 mass % of SnO.6. The alkali-free glass according to claim 1 , wherein the alkali-free glass has a temperature at 10poise of 1 claim 1 ,660° C. or less.7. The alkali-free glass according to claim 1 , wherein the alkali-free glass has a viscosity at a liquidus temperature of 10poise or more.8. The alkali-free glass according to claim 1 , wherein the alkali-free glass is formed by an overflow down-draw method.9. The alkali-free glass according to claim 1 , wherein the alkali-free glass is used for an OLED device. The present invention relates to ...

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Номер записи: 54

26-09-2013 дата публикации

CRYSTAL GLASS HAVING REFRACTIVE INDEX HIGHER THAN 1.53 WITHOUT A CONTENT OF COMPOUNDS OF LEAD, BARIUM AND ARSENIC

Номер: US20130252797A1

Автор: Korenský Jan, Rada Miroslav, Sázavová Kveta, Vavrena Jiri

Принадлежит:

This invention relates to a crystal glass having a refractive index higher than 1.53 and a high mechanical strength, free of any content of compounds of lead, barium and arsenic and guaranteeing maximum safety for health, which consists in that it comprises by weight: 55-70% SiO, 0.05-3.5% LiO, 2-15% NaO, more than 3% and less than 5% or more than 15% and less than 19% KO, 5 to 10% CaO, more than 1% and less than 4% or more than 7% and less than 8% ZnO, 0.1-3.5% BO, 0.1-3.5% AlO, 0.1-3.5% TiO, less than 3.5% ZrO, 0.05-1.5% GdO,0.05-1% PO, 0.1-1% SbO, 2. The crystal glass according to claim 1 , comprising by weight 0.05 to 0.8 wt % GdOand 0.05 to 0.8% POand the GdO/POratio is at least equal to 1:1.3. The crystal glass according to claim 1 , comprising by weight 0.05 to 0.15 wt % GdOand 0.1 to 0.8% POand the GdO/POratio is at least equal to 1:2.4. The crystal glass according to claim 1 , comprising by weight 0.1 wt % GdOand 0.2 to 0.8% POand the GdO/POratio is at least equal to 1:2.5. The crystal glass according to claim 1 , wherein it is clarified and discoloured by usual clarifying and discolouring components and/or mixtures thereof in the usual concentrations. The invention relates to a crystal glass with a refractive index higher than 1.53 and high mechanical strength that does not contain any compounds of lead, barium and arsenic and intended for the production of artificial jewellery and chandelier semi-finished products and final products made from them. This glass is also intended for the manufacture of glass chandeliers and household items.This glass is characterized by a very good workability in melting, shaping and polishing, its brightness reaches at least 93%, its density is at least 2.54 g/cmand its Young's modulus of elasticity is above 90 GPa and it is characterized by increased chemical resistance, reduced solarization and reduced toxicity, ensuring maximum health safety in common use of the products from this glass.High-quality crystal glasses have ...

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Номер записи: 55

03-10-2013 дата публикации

INTERMEDIATE THERMAL EXPANSION COEFFICIENT GLASS

Номер: US20130255779A1

Автор: Aitken Bruce Gardiner, Kosik Williams Carlo Anthony

Принадлежит:

CTE-matched silicate glasses and more particularly to low-alkali CTE-matched silicate glasses that are useful in semiconductor-based applications, such as photovoltaics are described along with methods of making such glasses. 2. The glass according to claim 1 , wherein the glass has a coefficient of thermal expansion of from about 4.5 to about 6.5 ppm/° C. from 25 to 300° C.3. The glass according to claim 2 , wherein the glass has a coefficient of thermal expansion of from about 4.5 to about 6.0 ppm/° C. from 25 to 300° C.4. The glass according to claim 1 , comprising about 0.1 to 8 mol % MO.5. The glass according to claim 1 , comprising about claim 1 , in mol %:{'sub': '2', '61 to 64 percent SiO;'}{'sub': 2', '3, '8 to 12 percent AlO;'}{'sub': 2', '3, '9 to 15 percent BO;'}{'sub': '2', 'greater than 0 to 4 percent MO; and'}12 to 15 percent RO.6. The glass according to claim 1 , comprising about claim 1 , in mol %:{'sub': '2', '60 to 65 percent SiO;'}{'sub': 2', '3, '8 to less than 10 percent AlO;'}{'sub': 2', '3, 'greater than 11 to 15 percent BO;'}{'sub': '2', 'greater than 0 to less than 1 percent MO; and'}9 to 15 percent RO.7. The glass according to claim 1 , comprising about claim 1 , in mol %:{'sub': '2', '60 to 65 percent SiO;'}{'sub': 2', '3, '10 to 12 percent AlO;'}{'sub': 2', '3, '7 to 11 percent BO;'}{'sub': '2', '1 to 8 percent MO; and'}9 to 15 percent RO.8. The glass according to claim 1 , further comprising about 0.01 to 0.4 mol % SnO.11. The glass according to claim 10 , wherein the glass has a coefficient of thermal expansion of from about 4.5 to about 6.5 ppm/° C. from 25 to 300° C.12. The glass according to claim 11 , wherein the glass has a coefficient of thermal expansion of from about 4.5 to about 6.0 ppm/° C. from 25 to 300° C.15. The glass according to claim 14 , wherein the glass has a coefficient of thermal expansion of from about 4.5 to about 6.5 ppm/° C. from 25 to 300° C.16. The glass according to claim 15 , wherein the glass has a ...

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Номер записи: 56

03-10-2013 дата публикации

HEAT TREATMENT FOR STRENGTHENING GLASSES

Номер: US20130260154A1

Автор: Allan Douglas Clippinger, Ellison Adam James, Mauro John Christopher

Принадлежит: CORNING INCORPORATED

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 ...

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Номер записи: 57

10-10-2013 дата публикации

Ultraviolet and Infrared Absorptive Glass

Номер: US20130264528A1

Автор: Mitamura Naoki, Tsuzuki Tatsuya

Принадлежит: CENTRAL GLASS COMPANY, LIMITED

Disclosed is an ultraviolet and infrared absorptive glass characterized by that its coloring component contains, based on mass of the ultraviolet and infrared absorptive glass, 0.05-0.9 mass % of CeO, 0.50-1.20 mass % of of total iron oxide in terms of FeO, 0.08-0.30 mass % of FeO, 0.1-1.5 mass % of TiO, 10-25 mass ppm of CoO, and 0.1-50 mass ppm of CrO, that mass ratio (Fe/Fe) of divalent iron to trivalent iron is 0.20-0.45, and that dominant wavelength measured by using illuminant Dof JIS Z 8701 is 510-560 nm. This glass has satisfactory optical characteristics, even though the content of CeOhas been reduced. 1. An ultraviolet and infrared absorptive glass , which is a soda-lime-silica glass containing a coloring component , the ultraviolet and infrared absorptive glass being characterized by that the coloring component contains , based on mass of the ultraviolet and infrared absorptive glass , 0.05-0.9 mass % of CeO , 0.50-1.20 mass % of total iron oxide in terms of FeO , 0.08-0.30 mass % of FeO , 0.1-1.5 mass % of TiO , 10-25 mass ppm of CoO , and 0.1-50 mass ppm of CrO , that mass ratio (Fe/Fe) of divalent iron to trivalent iron is 0.20-0.45 , and that dominant wavelength measured by using illuminant Dof JIS Z 8701 is 510-560 nm.2. The ultraviolet and infrared absorptive glass according to claim 1 , which is at least 70% in a visible light transmittance measured in accordance with JIS Z3211 at a thickness of 5 mm or less.3. The ultraviolet and infrared absorptive glass according to claim 1 , which is less than 55% in a solar transmittance measured in accordance with JIS R3106.4. The ultraviolet and infrared absorptive glass according to claim 1 , wherein the soda-lime-silica glass contains 65-80 mass % SiO claim 1 , 0-5 mass % AlO claim 1 , 0-10 mass % MgO claim 1 , 5-15 mass % CaO claim 1 , 10-18 mass % NaO claim 1 , and 0-5 mass % KO claim 1 , wherein total of MgO and CaO is 5-15 mass % claim 1 , and total of NaO and KO is 10-20 mass %.5. A window glass ...

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Номер записи: 58

10-10-2013 дата публикации

GLASS SUBSTRATE AND METHOD FOR MANUFACTURING SAME

Номер: US20130267402A1

Автор: Nishizawa Manabu

Принадлежит: Asahi Glass Company, Limited

The present invention provides a glass substrate having high glass transition temperature and small compaction (C) in a heat treatment at a low temperature (150 to 300° C.), the glass substrate including SiO, AlO, BO, MgO, CaO, SrO, BaO, ZrO, NaO, KO, and LiO, wherein each amount of these compounds is specifically limited, AlO+KO is 7 to 27 mass %, NaO+KO is 11.5 to 22 mass %, MgO+CaO+SrO+BaO is 0.2 to 14 mass %, MgO+0.357AlO−0.239KO−5.58 is −3.0 to 1.5, NaO+0.272AlO+0.876KO−16.77 is −2.5 to 2.5, a glass transition temperature is 500° C. or higher, and an average thermal expansion coefficient at 50 to 350° C. is 100×10/° C. or less. 1. A glass substrate comprising , in mass percent based on the oxides:{'sub': '2', 'from 68 to 81% of SiO,'}{'sub': 2', '3, 'from 0.2 to 18% of AlO,'}{'sub': 2', '3, 'from 0 to 3% of BO,'}from 0.2 to 11% of MgO,from 0 to 3% of CaO,from 0 to 3% of SrO,from 0 to 3% of BaO,{'sub': '2', 'from 0 to 1% of ZrO,'}{'sub': '2', 'from 1 to 18% of NaO,'}{'sub': '2', 'from 0 to 15% of KO, and'}{'sub': '2', 'from 0 to 2% of LiO,'}{'sub': 2', '3', '2, 'wherein AlO+KO is from 7 to 27%,'}{'sub': 2', '2, 'NaO+KO is from 11.5 to 22%,'}MgO+CaO+SrO+BaO is from 0.2 to 14%,{'sub': 2', '3', '2, 'MgO+0.357AlO−0.239KO−5.58 is from −3.0 to 1.5,'}{'sub': 2', '2', '3', '2, 'NaO+0.272AlO+0.876KO−16.77 is from −2.5 to 2.5,'}a glass transition temperature is 500° C. or higher, and{'sup': '−7', 'an average thermal expansion coefficient at from 50 to 350° C. is 100×10/° C. or less.'}2. The glass substrate according to claim 1 , wherein a relationship between a temperature (T) at which a viscosity becomes 10dPa·s and a glass surface devitrification temperature (T) is T−T≧0° C.3. The glass substrate according to claim 1 , wherein a relationship between a temperature (T) at which a viscosity becomes 10dPa·s and a glass inner devitrification temperature (T) is T−T≧150° C.4. A method for manufacturing a glass substrate claim 2 , comprising molding a molten glass obtained by ...

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Номер записи: 59

17-10-2013 дата публикации

PROCESS FOR PRODUCING CHEMICALLY TEMPERED GLASS

Номер: US20130269392A1

Автор: Akiba Shusaku, Ono Kazutaka

Принадлежит:

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 ...

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Номер записи: 60

17-10-2013 дата публикации

ALKALI FREE GLASS AND METHOD FOR PRODUCING ALKALI FREE GLASS

Номер: US20130274086A1

Автор: Koike Akio, Nishizawa Manabu, TSUJIMURA Tomoyuki

Принадлежит:

The present invention relates to an alkali-free glass having a strain point of 725° C. or higher, an average thermal expansion coefficient at from 50 to 300° C. of from 30×10to 40×10/° C., a temperature Tat which a glass viscosity is 10dPa·s of 1,710° C. or lower, and a temperature Tat which a glass viscosity is 10dPa·s of 1,320° C. or lower, the alkali-free glass including, in terms of mol % on the basis of oxides, SiO: 66 to 70, AlO: 12 to 15, BO: 0 to 1.5, MgO: more than 9.5 and 13 or less, CaO: 4 to 9, SrO: 0.5 to 4.5, BaO: 0 to 1, and ZrO: 0 to 2, in which MgO+CaO+SrO+BaO is from 17 to 21, MgO/(MgO+CaO+SrO+BaO) is 0.4 or more, MgO/(MgO+CaO) is 0.4 or more, MgO/(MgO+SrO) is 0.6 or more, and the alkali-free glass does not substantially contain an alkali metal oxide. 3. The method for producing the alkali-free glass according to claim 1 , wherein a silica sand claim 1 , in which a median diameter Dis from 20 to 27 μm claim 1 , a proportion of particles having a particle size of 2 μm or less is 0.3 vol % or less claim 1 , and a proportion of particles having a particle size of 100 μm or more is 2.5 vol % or less claim 1 , is used as a silicon source of SiO.4. The method for producing the alkali-free glass according to claim 1 , wherein an alkaline earth metal source containing a hydroxide of an alkaline earth metal in an amount of from 15 to 100 mol % (in terms of MO claim 1 , provided that M is an alkaline earth metal element claim 1 , and hereinafter the same) of 100 mol % of the alkaline earth metal source is used as the alkaline earth metal source of MgO claim 1 , CaO claim 1 , SrO and BaO.5. The method for producing the alkali-free glass according to claim 1 , wherein a silica sand claim 1 , in which a median diameter Dis from 20 to 27 μm claim 1 , a proportion of particles having a particle size of 2 μm or less is 0.3 vol % or less claim 1 , and a proportion of particles having a particle size of 100 μm or more is 2.5 vol % or less claim 1 , is used as a ...

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Номер записи: 61

24-10-2013 дата публикации

SILICATE GLASSES HAVING LOW SEED CONCENTRATION

Номер: US20130281281A1

Автор: Dejneka Matthew John, Gomez Sinue

Принадлежит:

A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm. 1. A silicate glass having a seed concentration of less than about 1 seed/cm , wherein the silicate glass comprises:{'sub': '2', '60-72 mol % SiO;'}{'sub': 2', '3, '6-14 mol % AlO;'}{'sub': 2', '3, '0-3 mol % BO;'}{'sub': '2', '0-1 mol % LiO;'}{'sub': '2', '8-18 mol % NaO;'}{'sub': '2', '0-5 mol % KO;'}0-2.5 mol % CaO;{'sub': '2', 'above 0 to 3 mol % ZrO;'}{'sub': '2', '0-1 mol % SnO; and'}{'sub': '2', '0-1 mol % CeO,'}{'sub': 2', '2', '2', '2', '3, 'wherein 12 mol % Подробнее

Номер записи: 62

31-10-2013 дата публикации

TEMPERED GLASS, AND TEMPERED GLASS PLATE

Номер: US20130288001A1

Автор: Murata Takashi, TOJYO Takako

Принадлежит:

Provided is a tempered glass having a compression stress layer in a surface thereof, the tempered glass comprising, as a glass composition in terms of mol %, 45 to 75% of SiO, 3 to 15% of AlO, 0 to 12% of LiO, 0.3 to 20% of NaO, 0 to 10% of KO, and 1 to 15% of MgO+CaO, and having a molar ratio (AlO+NaO+PO)/SiOof 0.1 to 1, a molar ratio (BO+NaO)/SiOof 0.1 to 1, a molar ratio PO/SiOof 0 to 1, a molar ratio AlO/SiOof 0.01 to 1, and a molar ratio NaO/AlOof 0.1 to 5, wherein the surface is etched partially or entirely before tempering treatment. 1. A tempered glass having a compression stress layer in a surface thereof , the tempered glass comprising , as a glass composition in terms of mol % , 45 to 75% of SiO , 3 to 15% of AlO , 0 to 12% of LiO , 0.3 to 20% of NaO , 0 to 10% of KO , and 1 to 15% of MgO+CaO , and having a molar ratio (AlO+NaO+PO)/SiOof 0.1 to 1 , a molar ratio (BO+NaO)/SiOof 0.1 to 1 , a molar ratio PO/SiOof 0 to 1 , a molar ratio AlO/SiOof 0.01 to 1 , and a molar ratio NaO/AlOof 0.1 to 5 , wherein the surface is etched partially or entirely before tempering treatment.2. The tempered glass according to claim 1 , wherein the tempered glass comprises claim 1 , as a glass composition in terms of mol % claim 1 , 45 to 75% of SiO claim 1 , 4 to 13% of AlO claim 1 , 0 to 3% of BO claim 1 , 0 to 8% of LiO claim 1 , 5 to 20% of NaO claim 1 , 0.1 to 10% of KO claim 1 , and 3 to 13% of MgO+CaO claim 1 , and has a molar ratio (AlO+NaO+PO)/SiOof 0.1 to 0.7 claim 1 , a molar ratio (BO+NaO)/SiOof 0.1 to 0.7 claim 1 , a molar ratio PO/SiOof 0 to 0.5 claim 1 , a molar ratio AlO/SiOof 0.01 to 0.7 claim 1 , and a molar ratio NaO/AlOof 0.5 to 4.3. The tempered glass according to claim 1 , wherein the tempered glass comprises claim 1 , as a glass composition in terms of mol % claim 1 , 45 to 75% of SiO claim 1 , 5 to 12% of AlO claim 1 , 0 to 1% of BO claim 1 , 0 to 4% of LiO claim 1 , 8 to 20% of NaO claim 1 , 0.5 to 10% of KO claim 1 , and 5 to 13% of MgO+CaO claim 1 , ...

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Номер записи: 63

31-10-2013 дата публикации

Crystallized glass

Номер: US20130288876A1

Автор: Shingo Nakane, Tai Fujisawa

Принадлежит: Nippon Electric Glass Co Ltd

Provided is crystallized glass, comprising, as a glass composition in terms of mass %, 55 to 73% of SiO 2 , 17 to 25% of Al 2 O 3 , 2 to 5% of Li 2 O, 2.5 to 5.5% of TiO 2 , 0 to 2.3% of ZrO 2 , 0.2 to 0.9% of SnO 2 , and 0.005 to 0.09% of V 2 O 5 , wherein the crystallized glass is substantially free of As 2 O 3 and Sb 2 O 3 .

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Номер записи: 64

31-10-2013 дата публикации

NON-ALKALI GLASS, AND PROCESS FOR PRODUCTION OF NON-ALKALI GLASS

Номер: US20130288877A1

Автор: Koike Akio, Nishizawa Manabu, TSUJIMURA Tomoyuki

Принадлежит:

The present invention relates to an alkali-free glass having a strain point of 735° C. or higher, an average thermal expansion coefficient at from 50 to 350° C. of from 30×10to 40×10/° C., a temperature Tat which a glass viscosity is 10dPa·s of 1,710° C. or lower, a temperature Tat which a glass viscosity is 10dPa·s of 1,340° C. or lower, and a devitrification temperature of 1,330° C. or lower, the alkali-free glass including, in terms of mol % on the basis of oxides: SiO66 to 69, AlO12 to 15, BO0 to 1.5, MgO 6 to 9.5, CaO 7 to 9, SrO 0.5 to 3, BaO 0 to 1, and ZrO0 to 2, in which MgO+CaO+SrO+BaO is from 16 to 18.2, MgO/(MgO+CaO+SrO+BaO) is 0.35 or more, MgO/(MgO+CaO) is 0.40 or more and less than 0.52, and MgO/(MgO+SrO) is 0.45 or more. 3. A method for producing the alkali-free glass according to claim 1 , wherein a silica sand claim 1 , in which a median diameter Dis from 20 to 27 μm claim 1 , a proportion of particles having a particle size of 2 μm or less is 0.3 vol % or less claim 1 , and a proportion of particles having a particle size of 100 μm or more is 2.5 vol % or less claim 1 , is used as a silicon source of SiO.4. A method for producing the alkali-free glass according to claim 1 , wherein an alkaline earth metal source containing a hydroxide of an alkaline earth metal in a content of from 15 to 100 mol % (in terms of MO claim 1 , provided that M is an alkaline earth metal element claim 1 , and hereinafter the same) of 100 mol % of the alkaline earth metal source is used as the alkaline earth metal source of MgO claim 1 , CaO claim 1 , SrO and BaO.5. A method for producing the alkali-free glass according to claim 1 , wherein a silica sand claim 1 , in which a median diameter Dis from 20 to 27 μm claim 1 , a proportion of particles having a particle size of 2 μm or less is 0.3 vol % or less claim 1 , and a proportion of particles having a particle size of 100 μm or more is 2.5 vol % or less claim 1 , is used as a silicon source of SiO; and an alkaline ...

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Номер записи: 65

07-11-2013 дата публикации

TEMPERED GLASS, AND TEMPERED GLASS PLATE

Номер: US20130295366A1

Автор: Murata Takashi, TOJYO Takako

Принадлежит:

Provided is a tempered glass having a compression stress layer in a surface thereof, comprising, as a glass composition in terms of mass %, 50 to 75% of SiO, 5 to 20% of AlO, 0 to 8% of BO, 5 to 20% of NaO, 0.1 to 10% of KO, 0.1 to 15% of MgO, and 0.001 to 5% of SrO+BaO, and having a mass ratio (MgO+CaO+SrO+BaO)/(MgO+ZrO) of 0.3 to 1.5. 1. A tempered glass having a compression stress layer in a surface thereof , comprising , as a glass composition in terms of mass % , 50 to 75% of SiO , 5 to 20% of AlO , 0 to 8% of BO , 5 to 20% of NaO , 0.1 to 10% of KO , 0.1 to 15% of MgO , and 0.001 to 5% of SrO+BaO , and having a mass ratio (MgO+CaO+SrO+BaO)/(MgO+ZrO) of 0.3 to 1.5.2. The tempered glass according to claim 1 , wherein the tempered glass comprises claim 1 , as a glass composition in terms of mass % claim 1 , 50 to 70% of SiO claim 1 , 7 to 20% of AlO claim 1 , 0 to 5% of BO claim 1 , 8 to 20% of NaO claim 1 , 1 to 10% of KO claim 1 , 1.5 to 12% of MgO claim 1 , and 0.001 to 3% of SrO+BaO claim 1 , and has a mass ratio (MgO+CaO+SrO+BaO)/(MgO+ZrO) of 0.4 to 1.4.3. The tempered glass according to claim 1 , wherein the tempered glass comprises claim 1 , as a glass composition in terms of mass % claim 1 , 50 to 70% of SiO claim 1 , 7 to 18% of AlO claim 1 , 0 to 3% of BO claim 1 , 10 to 17% of NaO claim 1 , 2 to 9% of KO claim 1 , 1.5 to 10% of MgO claim 1 , and 0.001 to 3% of SrO+BaO claim 1 , and has a mass ratio (MgO+CaO+SrO+BaO)/(MgO+ZrO) of 0.5 to 1.4.4. The tempered glass according to claim 1 , wherein the tempered glass comprises claim 1 , as a glass composition in terms of mass % claim 1 , 50 to 70% of SiO claim 1 , 8 to 17% of AlO claim 1 , 0 to 1.5% of BO claim 1 , 11 to 16% of NaO claim 1 , 3 to 8% of KO claim 1 , 1.8 to 9% of MgO claim 1 , and 0.001 to 1% of SrO+BaO claim 1 , and has a mass ratio (MgO+CaO+SrO+BaO)/(MgO+ZrO) of 0.5 to 0.9.5. The tempered glass according to claim 1 , wherein the tempered glass comprises claim 1 , as a glass composition in ...

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Номер записи: 66

07-11-2013 дата публикации

GLASS COMPOSITION HAVING HIGH THERMAL AND CHEMICAL STABILITY

Номер: US20130296157A1

Автор: Ellison Adam J., Kiczenski Timothy J.

Принадлежит:

Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs) and active matrix organic light emitting diode displays (AMOLEDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature. The glasses comprise in mol percent on an oxide basis: 70-74.5 SiO2, 10.5-13.5 AL2O3, 0-2.5 B2O3, 3-7 MgO, 3-7 CaO, 0-4 SrO, 1.5-6 BaO, 0-0.3 SnO2, 0-03 CeO2, 0-0.5 As2O3, 0-0.5 Sb2O3, 0.01-0.08 Fe2O3 and F+Cl+BrRO/Al2O31.7 and 0.2MgO/RO0.45, RO being the sum of MgO, BaO, SrO and CaO. 1. A glass comprising in mol percent on an oxide basis:{'br': None, 'sub': '2', '70≦SiO≦74.5'}{'br': None, 'sub': 2', '3, '10.5≦AlO≦13.5'}{'br': None, 'sub': 2', '3, '0≦BO≦2.5'}{'br': None, '3≦MgO≦7'}{'br': None, '3≦CaO≦7'}{'br': None, '0≦SrO≦4'}{'br': None, '1.5≦BaO≦6'}{'br': None, 'sub': '2', '0≦SnO≦0.3'}{'br': None, 'sub': '2', '0≦CeO≦0.3'}{'br': None, 'sub': 2', '3, '0≦AsO≦0.5'}{'br': None, 'sub': 2', '3, '0≦SbO≦0.5'}{'br': None, 'sub': 2', '3, '0.01≦FeO≦0.08'}{'br': None, 'F+Cl+Br≦0.4'}{'br': None, 'wherein'}{'br': None, 'sub': 2', '3, '1.05≦(MgO+CaO+SrO)/AlO≦1.7\u2003\u2003a)'}{'br': None, '0.2≦MgO/(CaO+SrO+BaO)≦0.45\u2003\u2003b)'}{'sub': 2', '3, 'where AlO, MgO, CaO, SrO and BaO represent the mol percents of the representative oxide components.'}2. The glass of claim 1 , wherein SiO+AlO=86.97−0.713*(MgO+CaO+SrO+BaO—AlO)±0.8.3. The glass of further comprising a chemical fining agent.4. The glass of wherein the fining agent is selected from the group consisting of: SnO claim 3 , FeO claim 3 , CeO claim 3 , SbO claim 3 , AsO claim 3 , or mixtures thereof.5. The glass of further comprising less than 0.05% by weight of AsO claim 1 , SbOor combinations thereof.6. The glass of further comprising less than 0.02% by weight of F claim 1 , Cl claim 1 , Br or combinations thereof.7. ...

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Номер записи: 67

14-11-2013 дата публикации

HIGH-STRENGTH ALKALI-ALUMINOSILICATE GLASS

Номер: US20130302618A1

Автор: Boettger Michael, Kuhnemann Bernd, Rathke Sicco

Принадлежит: Kornerstone Materials Technology Co., Ltd.

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 ...

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Номер записи: 68

21-11-2013 дата публикации

GLASS SUBSTRATE FOR CU-IN-GA-SE SOLAR CELL AND SOLAR CELL USING SAME

Номер: US20130306145A1

Автор: HANAWA Yu, Kuroiwa Yutaka, Nakashima Tetsuya, Sekine Tomomi, Tomizawa Takeshi, Usui Reo

Принадлежит: Asahi Glass Company, Limited

A glass substrate for a CIGS solar cell containing specific amounts of SiO, AlO, BO, MgO, CaO, SrO, BaO, ZrO, TiO, NaO and KO, respectively. The glass substrate satisfies the specific requirements regarding MgO+CaO+SrO+BaO, NaO+KO, MgO/AlO, (2NaO+KO+SrO+BaO)/(AlO+ZrO), NaO/KO, the relation of AlOand MgO, and the relation of CaO and MgO, respectively. The glass substrate has a glass transition temperature of 640° C. or higher, an average coefficient of thermal expansion within a range of 50 to 350° C. of 70×10to 90×10/° C., the temperature (T) of 1,230° C. or lower, the temperature (T) of 1,650° C. or lower, and a density of 2.7 g/cmor less. The glass substrate satisfies the relationship of T−T≧−30° C. 1. A glass substrate for a Cu—In—Ga—Se solar cell , containing , in terms of mol % on the basis of the following oxides:{'sub': '2', 'from 60 to 75% of SiO;'}{'sub': 2', '3, 'from 1 to 7.5% of AlO;'}{'sub': 2', '3, 'from 0 to 1% of BO;'}from 8.5 to 12.5% of MgO;from 1 to 6.5% of CaO;from 0 to 3% of SrO;from 0 to 3% of BaO;{'sub': '2', 'from 0 to 3% of ZrO;'}{'sub': '2', 'from 0 to 3% of TiO;'}{'sub': '2', 'from 1 to 8% of NaO; and'}{'sub': '2', 'from 2 to 12% of KO,'}wherein MgO+CaO+SrO+BaO is from 10 to 24%,{'sub': 2', '2, 'NaO+KO is from 5 to 15%,'}{'sub': 2', '3, 'MgO/AlOis 1.3 or more,'}{'sub': 2', '2', '2', '3', '2, '(2NaO+KO+SrO+BaO)/(AlO+ZrO) is 3.3 or less,'}{'sub': 2', '2, 'NaO/KO is from 0.2 to 2.0'}{'sub': 2', '3, 'AlO≧−0.94MgO+11, and'}CaO≧−0.48MgO+6.5,{'sup': −7', '−7', '4', '2', '3, 'sub': 4', '2', '4', 'L', '4', 'L, 'wherein the glass substrate has a glass transition temperature of 640° C. or higher, an average coefficient of thermal expansion within a range of 50 to 350° C. of from 70×10to 90×10/° C., a temperature (T) at which a viscosity reaches 10dPa·s of 1,230° C. or lower, a temperature (T) at which a viscosity reaches 10dPa·s of 1,650° C. or lower, a relationship between the Tand a devitrification temperature (T) of T−T≧−30° C., and a density of 2 ...

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Номер записи: 69

21-11-2013 дата публикации

Method for making glass substrate for display, glass substrate and display panel

Номер: US20130306995A1

Автор: Young Tae Park

Принадлежит: Avanstrate Inc

A method for manufacturing a glass substrate for a display includes a step of producing a glass substrate and a step of performing a surface treatment on one glass surface of major surfaces of the glass substrate to form surface unevenness. The surface treatment is performed such that protruded portions having a height of 1 nm or more from the surface roughness central plane of the surface unevenness are dispersedly provided on the glass surface after the surface treatment and the area ratio of the protruded portions with respect to the area of the glass surface is 0.5-10%. Using this glass substrate, semiconductor elements are formed on a major surface of the glass substrate opposite to the glass surface. Accordingly, a display panel is produced.

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Номер записи: 70

28-11-2013 дата публикации

Tempered glass plate

Номер: US20130316162A1

Автор: Kosuke Kawamoto, Takashi Murata

Принадлежит: Nippon Electric Glass Co Ltd

Provided is a tempered glass sheet having a compression stress layer in a surface thereof, comprising, as a glass composition expressed in mass % in terms of oxides, 50 to 70% of SiO 2 , 5 to 20% of Al 2 O 3 , 0 to 5% of B 2 O 3 , 8 to 18% of Na 2 O, 2 to 9% of K 2 O, and 30 to 1,500 ppm of Fe 2 O 3 , and having a spectral transmittance in terms of a thickness of 1.0 mm at a wavelength of 400 to 700 nm of 85% or more, a chromaticity x of 0.3095 to 0.3120 in xy chromaticity coordinates (illuminant C, in terms of a thickness of 1 mm), and a chromaticity y of 0.3160 to 0.3180 in xy chromaticity coordinates (illuminant C, in terms of a thickness of 1 mm).

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Номер записи: 71

05-12-2013 дата публикации

GLASS COMPOSITION, GLASS SUBSTRATE FOR SOLAR CELLS USING GLASS COMPOSITION, AND GLASS SUBSTRATE FOR DISPLAY PANEL

Номер: US20130324389A1

Автор: Koike Akio, KONDO Yuki, Nagashima Tatsuo, Nishizawa Manabu

Принадлежит: Asahi Glass Company, Limited

The present invention relates to a glass composition including, in terms of mol % on the basis of oxides: from 55 to 70% of SiO, from 5 to 10% of AlO, from 0 to 0.5% of BO, from 3 to 15% of MgO, from 3 to 15% of CaO, from 2 to 10% of SrO, from 1 to 10% of BaO, from 0 to 3% of ZrO, from 0 to 1.8% of NaO, and from 0 to 1% of KO, provided that MgO+CaO+SrO+BaO is from 20 to 35%, and NaO+KO is from 0 to 2%, in which the glass composition has a glass transition temperature of 680° C. or higher, an average thermal expansion coefficient of from 50×10to 70×10/° C., and a temperature at which a viscosity is 10dPa·s of 1,600° C. or lower. 4. A glass substrate for solar cells claim 1 , comprising the glass composition according to .5. A glass substrate for a CIGS solar cell claim 1 , comprising the glass composition according to .6. A glass substrate for a CdTe solar cell claim 1 , comprising the glass composition according to .7. A glass substrate for a display panel claim 1 , comprising the glass composition according to . The present invention relates to a glass composition, and a glass substrate comprising the glass composition. In more detail, the invention relates to a glass composition for a glass substrate for solar cells in which a photoelectric conversion layer is formed between glass substrates, a glass composition for an evacuated glass tube type heat collector for performing solar thermal power generation by evaporating a heating medium heated in a heat collector by solar heat to rotate a steam turbine and the like, and a glass composition for a glass substrate for a display panel used in various display panels.The present invention further relates to a glass substrate for solar cells typically having a glass substrate and a cover glass, in which a photoelectric conversion layer comprising group 11-13 or 11-16 compound semiconductors having a chalcopyrite crystal structure, or cubic or hexagonal group 12-16 compound semiconductors, as main components is formed ...

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Номер записи: 72

26-12-2013 дата публикации

ALKALI-FREE GLASS AND PREPARATION THEREOF (As Amended)

Номер: US20130345040A1

Автор: Hong In-Ki, Im Sang-Hyeok, KIM Sang-Kook, Ko Jung-Min, Lee Dong-Kwon

Принадлежит: LG CHEM, LTD.

The present invention provides the composition of an alkali-free glass composition containing no alkali metal oxide and the preparation thereof. The alkali-free glass comprising substantially no alkali metal oxide according to the present invention comprises 60 to 70 wt % of SiO; 1 to 3.5 wt % of BO; 1 to 13 wt % of AlO; 8.5 to 14 wt % of MgO; 1 to 3 wt % of CaO; 4 to 7 wt % of SrO; and 0.5 to 7 wt % of BaO, based on the total weight of oxides present therein. 1. An alkali-free glass comprising substantially no alkali metal oxide and comprising , based on the total weight of oxides present therein ,{'sub': '2', '60 to 70 wt % of SiO;'}{'sub': 2', '3, '1 to 3.5 wt % of BO;'}{'sub': 2', '3, '1 to 13 wt % of AlO;'}8.5 to 14 wt % of MgO;1 to 3 wt % of CaO;4 to 7 wt % of SrO; and0.5 to 7 wt % of BaO.2. The alkali-free glass according to claim 1 , which comprises claim 1 , based on the total weight of oxides present therein claim 1 ,{'sub': '2', '62 to 68 wt % of SiO;'}{'sub': 2', '3, '2 to 2.9 wt % of BO;'}{'sub': 2', '3, '9 to 13 wt % of AlO;'}9 to 13 wt % of MgO;2 to 3 wt % of CaO;4 to 5.5 wt % of SrO; and0.5 to 4 wt % of BaO.3. The alkali-free glass according to claim 1 , wherein the amount of MgO+CaO+SrO+BaO is in the range of 14 to 24 wt % based on the total weight of oxides present therein.4. The alkali-free glass according to claim 1 , wherein the amount of MgO+CaO+SrO+BaO is in the range of 16 to 22 wt % based on the total weight of oxides present therein.5. The alkali-free glass according to claim 1 , wherein the amount of SiO+AlOis in the range of 73 to 82 wt % based on the total weight of oxides present therein.6. The alkali-free glass according to claim 1 , which has a density less than 2.55 g/cm claim 1 , and a coefficient of thermal expansion of 3.0×10/K to 4.0×10/K.7. The alkali-free glass according to claim 1 , which has a temperature less than 1620° C. at a viscosity of 10dPas claim 1 , and a temperature less than 1260° C. at a viscosity of 10dPas.8. The ...

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Номер записи: 73

26-12-2013 дата публикации

GLASS COMPOSITION, GLASS SUBSTRATE FOR FLAT PANEL DISPLAY USING THE SAME, FLAT PANEL DISPLAY, AND METHOD FOR PRODUCING GLASS SUBSTRATE FOR FLAT PANEL DISPLAY

Номер: US20130345041A1

Автор: HASHIMOTO Mikiko, KOYAMA Akihiro

Принадлежит: AVANSTRATE INC.

Provided is a glass composition suitable for a glass substrate for a flat panel display such as a liquid crystal display. This glass composition has high thermal stability, and is substantially free of BaO but has a low devitrification temperature. It is suitable for the production of a glass substrate by a downdraw process. This glass composition contains, in terms of mass %: 54 to 62% of SiO; 4 to 11% of BO; 15 to 20% of AlO; 2 to 5% of MgO; 0 to 7% of CaO; 0 to 13.5% of SrO; 0 to 1% of KO; 0 to 1% of SnO; and 0 to 0.2% of FeO, and is substantially free of BaO. In this glass composition, the total content of alkaline earth metal oxides (MgO+CaO+SrO) is 10 to 18.5 mass %. The devitrification temperature of the glass composition is 1200° C. or lower. 19-. (canceled)10. A glass composition comprising , in terms of mass %:54 to 62% of SiO2;4 to 11% of B2O3;15 to 20% of Al2O3;2 to 5% of MgO;0 to 7% of CaO;0 to 13.5% of SrO;0 to 1% of K2O;0.1 to 1% of SnO2; and0.05 to 0.2% of Fe2O3, whereinthe glass composition is substantially free of BaO,a total content of alkaline earth metal oxides (MgO+CaO+SrO) is 10 to 18.5 mass %,a mass ratio of the content of CaO to the total content of the alkaline earth metal oxides is 0.23 or lower, anda devitrification temperature of the glass composition is 1200° C. or lower.11. The glass composition according to claim 10 , wherein the mass ratio of the content of CaO to the total content of the alkaline earth metal oxides is 0.05 to 0.23.12. The glass composition according to claim 10 , wherein a glass transition point of the glass composition is 720° C. or higher.13. A glass substrate for a flat panel display claim 10 , the substrate being composed of the glass composition according to .14. A flat panel display comprising the glass substrate for a flat panel display according to .15. A glass composition comprising claim 13 , in terms of mass %:54 to 62% of SiO2;4 to 11% of B2O3;15 to 20% of Al2O3;2 to 5% of MgO;0 to 7% of CaO;0 to 13.5% ...

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Номер записи: 74

26-12-2013 дата публикации

LEAD-FREE GLASS FOR SEMICONDUCTOR ENCAPSULATION AND ENCAPSULATOR FOR SEMICONDUCTOR ENCAPSULATION

Номер: US20130345042A1

Автор: HASHIMOTO Koichi, KONDO Kumiko

Принадлежит: NIPPON ELECTRIC GLASS CO., LTD.

The present invention provides a lead-free glass for semiconductor encapsulation, which can encapsulate semiconductor devices at a low temperature, has an excellent acid durability and hardly precipitates crystals when forming a glass tube, and an encapsulator for semiconductor encapsulation made of the glass. The glass comprises, as a glass composition, from 45 to 58% of SiO, from 0 to 6% of AlO, from 14.5 to 30% of BO, from 0 to 3% of MgO, from 0 to 3% of CaO, from 4.2 to 14.2% of ZnO, from 5 to 12% of LiO, from 0 to 15% of NaO, from 0 to 7% of KO, from 15 to 30% of LiO+NaO+KO, and from 0.1 to 8% of TiO, in terms of % by mol, wherein a ratio of ZnO to LiO is in the range from 0.84 to 2. 1. A lead-free glass for semiconductor encapsulation , which comprises , as a glass composition , from 45 to 58% of SiO , from 0 to 6% of AlO , from 14.5 to 30% of BO , from 0 to 3% of MgO , from 0 to 3% of CaO , from 4.2 to 14.2% of ZnO , from 5 to 12% of LiO , from 0 to 15% of NaO , from 0 to 7% of KO , from 15 to 30% of LiO+NaO+KO , and from 0.1 to 8% of TiO , in terms of % by mol , wherein a ratio of ZnO to LiO is in the range from 0.84 to 2.2. The lead-free glass for semiconductor encapsulation according to claim 1 , which comprises claim 1 , as a glass composition claim 1 , from 49 to 53.6% of SiO claim 1 , from 0.4 to 1.1% of AlO claim 1 , from 15.5 to 18.2% of BO claim 1 , from 0 to 0.5% of MgO claim 1 , from 0 to 0.5% of CaO claim 1 , from 7.4 to 9.9% of ZnO claim 1 , from 5 to 10% of LiO claim 1 , from 5 to 11% of NaO claim 1 , from 0.1 to 2.3% of KO claim 1 , from 19 to 25% of LiO+NaO+KO claim 1 , and from 1.1 to 4% of TiO claim 1 , wherein the ratio of ZnO to LiO is in the range from 0.85 to 1.5.3. The lead-free glass for semiconductor encapsulation according to claim 1 , which comprises less than 9% by mol of LiO.4. The lead-free glass for semiconductor encapsulation according to claim 1 , which comprises from 52.1 to 56.5% by mol of SiO+TiO.5. The lead-free glass for ...

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Номер записи: 75

02-01-2014 дата публикации

GLASS TO BE TEMPERED

Номер: US20140005026A1

Автор: Ito Setsuro, Koike Akio

Принадлежит: Asahi Glass Company, Limited

The present invention provides a glass plate to be tempered, which has a low thermal expansion coefficient, a high surface compression stress due to physical reinforcements and a low density and is excellent in the scratch durability. 4. The glass plate to be tempered according to claim 1 , which has an average thermal expansion coefficient of less than 100×10/° C. at from 50 to 350° C. and a density of less than 2.50 g/cmat room temperature.5. The glass plate to be tempered according to claim 1 , which has a crack initiation load of at least 1 claim 1 ,500 gf in vacuum.6. The glass plate to be tempered according to claim 1 , which has a thermal expansion coefficient of at least 250×10/° C. at a temperature in the middle of a glass transition point and a deformation point.7. The glass plate to be tempered according to claim 1 , wherein a value obtained by dividing the thermal expansion coefficient at a temperature in the middle of the glass transition point and the deformation point by the average thermal expansion coefficient at from 50 to 350° C. claim 1 , is at least 4.0.8. The glass plate to be tempered according to claim 1 , which has the average thermal expansion coefficient of at least 30×10/° C. and less than 100×10/° C. at from 50 to 350° C.9. The glass plate to be tempered according to claim 1 , which is produced by any one of a float method claim 1 , a fusion method claim 1 , a down load method and a roll out method.10. A tempered glass plate which is obtained by subjection the glass plate to be tempered as defined in to tempering treatment by heating at a temperature higher than the glass transition point of the glass plate claim 1 , followed by quenching. This application is a continuation of PCT Application No. PCT/JP2012/054821, filed on Feb. 27, 2012, which is based upon and claims the benefit of priority from Japanese Patent Application No. 2011-041772 filed on Feb. 28, 2011. The contents of those applications are incorporated herein by reference in ...

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Номер записи: 76

09-01-2014 дата публикации

ALKALI-FREE GLASS AND PREPARATION THEREOF

Номер: US20140011659A1

Автор: BANG Jung-Sik, KIM Da-Jeong, KIM Sang-Kook, KIM Su-hwan, Lee Dong-Kwon, LIM Won-Bae

Принадлежит: LG CHEM, LTD.

The present invention provides the composition of an alkali-free glass composition containing no alkali metal oxide and the preparation thereof. The alkali-free glass comprising substantially no alkali metal oxide according to the present invention comprises 46 to 57 wt % of SiO; 3.5 to 7.5 wt % of BO; 21 to 29 wt % of AlO; 3 to 14 wt % of MgO; 11 to 16 wt % of CaO; and 1 to 5 wt % of SrO, based on the total weight of oxides present therein. 1. An alkali-free glass comprising substantially no alkali metal oxide and comprising , based on the total weight of oxides present therein ,{'sub': '2', '46 to 57 wt % of SiO;'}{'sub': 2', '3, '3.5 to 7.5 wt % of BO;'}{'sub': 2', '3, '21 to 29 wt % of AlO;'}3 to 14 wt % of MgO;11 to 16 wt % of CaO; and1 to 5 wt % of SrO.2. The alkali-free glass according to claim 1 , wherein BaO is not substantially contained.3. The alkali-free glass according to claim 1 , which comprises claim 1 , based on the total weight of oxides present therein claim 1 ,{'sub': '2', '49 to 54 wt % of SiO;'}{'sub': 2', '3, '4 to 6 wt % of BO;'}{'sub': 2', '3, '25 to 29 wt % of AlO;'}3 to 8 wt % of MgO;11 to 14 wt % of CaO; and1 to 3 wt % of SrO.4. The alkali-free glass according to claim 1 , wherein the amount of MgO+CaO+SrO is in the range of 15 to 23 wt % based on the total weight of oxides present therein.5. The alkali-free glass according to claim 1 , wherein the amount of MgO+CaO+SrO is in the range of 16 to 21 wt % based on the total weight of oxides present therein.6. The alkali-free glass according to claim 1 , wherein the amount of SiO+AlOis in the range of 74 to 83 wt % based on the total weight of oxides present therein.7. The alkali-free glass according to claim 1 , which has a density less than 2.6 g/cm claim 1 , and a coefficient of thermal expansion of 3.2×10/K to 4.2×10/K.8. The alkali-free glass according to claim 1 , which has a temperature less than 1550° C. at a viscosity of 10dPas claim 1 , and a temperature less than 1230° C. at a ...

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Номер записи: 77

16-01-2014 дата публикации

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

Номер: US20140017441A1

Автор: Jeffrey John DOMEY, Matthew Wade FENTON

Принадлежит: Corning Inc

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.

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Номер записи: 78

16-01-2014 дата публикации

CHEMICALLY STRENGTHENED GLASS FOR DISPLAY DEVICE

Номер: US20140017500A1

Автор: Koike Akio, SAITO Isao, SHIMADA Yuya

Принадлежит: Asahi Glass Company, Limited

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 ...

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Номер записи: 79

23-01-2014 дата публикации

ION EXCHANGEABLE LI-CONTAINING GLASS COMPOSITIONS FOR 3-D FORMING

Номер: US20140023865A1

Автор: Comte Marie Jacqueline Monique, Drake Melinda Ann, Geisinger Karen Leslie, Gomez Sinue, Morena Robert Michael, Smith Charlene Marie, Youngman Randall Eugene

Принадлежит:

According to one embodiment, a glass article may include SiO, AlO, LiO and NaO. The glass article may have a softening point less than or equal to about 810° C. The glass article may also have a high temperature CTE less than or equal to about 27×10/° C. The glass article may also be ion exchangeable such that the glass has a compressive stress greater than or equal to about MPa and a depth of layer greater than or equal to about 25 μm after ion exchange in a salt bath comprising KNOat a temperature in a range from about 390° C. to about 450° C. for less than or equal to approximately 15 hours. 1. A glass article comprising SiO , AlO , LiO and NaO , the glass article having:a softening point less than or equal to about 810° C.;{'sup': '−6', 'a high temperature CTE less than or equal to about 27×10/° C.; and'}{'sub': '3', 'a compressive stress greater than or equal to about 600 MPa and a depth of layer greater than or equal to about 25 μm after ion exchange in a salt bath comprising KNOin a temperature range from about 390° C. to about 450° C. for less than or equal to approximately 15 hours.'}2. The glass article of claim 1 , the glass article has L claim 1 , a* claim 1 , b* claim 1 , color coordinates of L from about 0 to about 5.0 claim 1 , a* from about −2.0 to about 2.0 claim 1 , and b* from about 0 to about −5.0.3. The glass article of claim 1 , wherein the glass article has an opacity greater than or equal to about 80% over a range of wavelengths from about 350 nm to about 750 nm.4. The glass article of comprising:{'sub': '2', 'from about 65 mol. % to about 71 mol. % SiO;'}{'sub': 2', '3, 'from about 7 mol. % to about 12 mol. % AlO;'}{'sub': '2', 'from about 1 mol. % to about 9 mol. % LiO;'}{'sub': '2', 'from about 6 mol. % to about 16 mol. % NaO;'}{'sub': '2', 'from about 0 mol. % to about 5 mol. % KO;'}from about 0.8 to about 10 mol. % of a divalent oxide, wherein the divalent oxide comprises at least one of MgO and ZnO; and{'sub': 2', '3', '2', '3, 'less ...

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Номер записи: 80

30-01-2014 дата публикации

GLASS SUBSTRATE FOR DISPLAY AND DISPLAY

Номер: US20140031192A1

Автор: HACHITANI Yoichi, KOYAMA Akihiro, Kurachi Junji

Принадлежит: AVANSTRATE, INC.

A glass substrate for a display, which is formed of a glass having a light weight and having high refinability with decreasing environmental burdens, the glass comprising, by mass %, 50 to 70% of SiO, 5 to 18% of BO, 10 to 25% of AlO, 0 to 10% of MgO, 0 to 20% of CaO, 0 to 20% of SrO, 0 to 10% of BaO, 5 to 20% of RO (in which R is at least one member selected from the group consisting of Mg, Ca, Sr and Ba), and over 0.20% but not more than 2.0% of R′O (in which R′ is at least one member selected from the group consisting of Li, Na and K), and containing, by mass %, 0.05 to 1.5% of oxide of metal that changes in valence number in a molten glass, and substantially containing none of AsO, SbOand PbO. 114.-. (canceled)15. A process for producing a glass substrate for a display , which comprises melting a glass raw material batch to produce a glass and processing the glass into a thin plate to produce a glass substrate for a display , said glass comprising , by mass % ,{'sub': '2', '50 to 70% of SiO,'}{'sub': 2', '3, '5 to 18% of BO,'}{'sub': 2', '3, '10 to 25% of AlO,'}0 to 10% of MgO,0 to 20% of CaO,0 to 20% of SrO,0 to 10% of BaO,5 to 20% of RO (in which R is at least one member selected from the group consisting of Mg, Ca, Sr and Ba), and{'sub': '2', '0.20% or more but not more than 2.0% of R′O (in which R′ is at least one member selected from the group consisting of Li, Na and K),'}the glass containing, by mass %, 0.05 to 1.5% of an oxide of a metal that changes in valence number in a molten glass, and{'sub': 2', '3', '2', '3, 'substantially containing none of AsO, SbOand PbO.'}16. The process for producing a glass substrate for a display as recited in claim 15 , wherein the glass comprises claim 15 , by mass % claim 15 ,{'sub': '2', '55 to 65% of SiO,'}{'sub': 2', '3, '10 to 14% of BO,'}{'sub': 2', '3, '15 to 19% of AlO,'}1 to 3% of MgO,4 to 7% of CaO,1 to 4% of SrO,0 to 2% of BaO,6 to 16% of RO in which R is at least one member selected from the group consisting ...

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Номер записи: 81

06-02-2014 дата публикации

NON-ALKALI GLASS FOR SUBSTRATES AND PROCESS FOR MANUFACTURING NON-ALKALI GLASS FOR SUBSTRATES

Номер: US20140038807A1

Автор: Higuchi Nobuhiko, Nishizawa Manabu, TSUJIMURA Tomoyuki

Принадлежит: Asahi Glass Company, Limited

According to the present invention, an alkali-free glass for a substrate, having a thickness of 0.1 mm to 0.3 mm and a compaction of 9 ppm or lower can be obtained without performing heat treatment as a post-treatment for the alkali-free glass for a substrate after production (after forming, annealing and cutting). 2. The method for producing an alkali-free glass for a substrate according to claim 1 , wherein the alkali-free glass for a substrate to be produced comprises claim 1 , as represented by mass % on the basis of oxides claim 1 , as a glass matrix composition:{'sub': '2', 'SiO: 58% to 66%,'}{'sub': 2', '3, 'AlO: 15% to 24%,'}{'sub': 2', '3, 'BO: 5% to 12%,'}MgO: 0% to 8%,CaO: 0% to 9%,SrO: 3% to 12.5%, andBaO: 0% to 2%,provided that MgO+CaO+SrO+BaO is 9% to 18%.3. The method for producing an alkali-free glass for a substrate according to claim 1 , wherein the alkali-free glass for a substrate to be produced comprises claim 1 , as represented by mass % on the basis of oxides claim 1 , as a glass matrix composition:{'sub': '2', 'SiO: 50% to 61.5%,'}{'sub': 2', '3, 'AlO: 10.5% to 18%,'}{'sub': 2', '3, 'BO: 7% to 10%,'}MgO: 2% to 5%,CaO: 0% to 14.5%,SrO: 0% to 24%, andBaO: 0% to 13.5%,provided that MgO+CaO+SrO+BaO is 16% to 29.5%.4. An alkali-free glass for a substrate claim 1 , which is obtained by the method for producing an alkali-free glass for a substrate according to .5. An alkali-free glass for a substrate claim 2 , which is obtained by the method for producing an alkali-free glass for a substrate according to .6. An alkali-free glass for a substrate claim 3 , which is obtained by the method for producing an alkali-free glass for a substrate according to . The present invention relates to an alkali-free glass for a substrate which is suitable as various kinds of glass substrates for a display and as a glass substrate for a photomask, has a thin thickness, and has an extremely low compaction, and relates to a method for producing the alkali-free glass for ...

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Номер записи: 82

13-02-2014 дата публикации

ALKALI-FREE GLASS AND PREPARATION THEREOF

Номер: US20140045676A1

Автор: HWANG Du-Sun, KIM Da-Jeong, KIM Sang-Kook, KIM Su-hwan, Lee Dong-Kwon, LIM Won-Bae

Принадлежит: LG CHEM, LTD.

The present invention provides the composition of an alkali-free glass composition containing no alkali metal oxide and the preparation thereof. The alkali-free glass comprising substantially no alkali metal oxide according to the present invention comprises 61 to 73 wt % of SiO; 0.5 to 3.9 wt % of BO; 3.5 to 13.5 wt % of AlO; 9 to 13 wt % of MgO; 1 to 8 wt % of CaO; and 4 to 10 wt % of SrO, based on the total weight of oxides present therein. 1. An alkali-free glass comprising substantially no alkali metal oxide and comprising , based on the total weight of oxides present therein ,{'sub': '2', '61 to 73 wt % of SiO;'}{'sub': 2', '3, '0.5 to 3.9 wt % of BO;'}{'sub': 2', '3, '3.5 to 13.5 wt % of AlO;'}9 to 13 wt % of MgO;1 to 8 wt % of CaO; and4 to 10 wt of SrO.2. The alkali-free glass according to claim 1 , wherein BaO is not substantially contained.3. The alkali-free glass according to claim 1 , which comprises claim 1 , based on the total weight of oxides present therein claim 1 ,{'sub': '2', '64 to 72 wt % of SiO;'}{'sub': 2', '3, '1 to 3.9 wt % of BO;'}{'sub': 2', '3, '4 to 12 wt % of AlO;'}9.5 to 12 wt % of MgO;4 to 8 wt % of CaO; and4 to 8 wt % of SrO.4. The alkali-free glass according to claim 1 , wherein the amount of MgO+CaO+SrO is in the range of 15 to 26 wt % based on the total weight of oxides present therein.5. The alkali-free glass according to claim 1 , wherein the amount of MgO+CaO+SrO is in the range of 17 to 24 wt % based on the total weight of oxides present therein.6. The alkali-free glass according to claim 1 , wherein the amount of SiO+AlOis in the range of 72 to 79 wt % based on the total weight of oxides present therein.7. The alkali-free glass according to claim 1 , which has a density less than 2.55 g/cm claim 1 , and a coefficient of thermal expansion of 3.0×10/K to 4.5×10/K.8. The alkali-free glass according to claim 1 , which has a temperature less than 1600° C. at a viscosity of 10dPas claim 1 , and a temperature less than 1250° C. at a ...

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Номер записи: 83

06-03-2014 дата публикации

Glass articles with high flexural strength and method of making

Номер: US20140065401A1

Автор: Anthony John Furstoss, Kyle C. Hoff, Michael Patrick Donovan

Принадлежит: Corning Inc

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.

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Номер записи: 84

06-03-2014 дата публикации

NIOBIUM DOPED SILICA TITANIA GLASS AND METHOD OF PREPARATION

Номер: US20140066286A1

Автор: Annamalai Sezhian, Dawes Steven Bruce, Hrdina Kenneth Edward

Принадлежит: CORNING INCORPORATED

This disclosure is directed to a silica-titania-niobia glass and to a method for making the glass. The composition of the silica-titania-niobia (SiO—TiO—NbO) glass, determined as the oxides, is NbOin an amount in the range of 0.005 wt. % to 1.2 wt. %, TiOin an amount in the range of 5 wt. % to 10 wt. %, and the remainder of glass is SiO. In the method, the STN glass precursor is consolidated into a glass by heating to a temperature of 1600° C. to 1700° C. in flowing helium for 6 hours to 10 hours. When this temperature is reached, the helium flow can be replaced by argon for the remainder of the time. Subsequently the glass is cooled to approximately 1050° C., and then from 1050° C. to 700° C. followed by turning off the furnace and cooling the glass to room temperature at the natural cooling rate of the furnace. 1. A silica-titania-niobia glass comprising , in wt. % measured as the oxides , niobia in an amount in the range of 0.005 wt. % to 1.2 wt. % , titania in an amount in the range of 5 wt. % to 10 wt. % , and the remainder of the glass is silica , SiO.2. The silica-titania-niobia glass according to claim 1 , wherein the titania content is in the range of 6 wt. % to 9 wt. %.3. The silica-titania-niobia glass according to claim 1 , wherein the silica-titania-niobia has a lower expansivity slope than that of a silica-titania glass having a substantially equivalent titania content.4. The silica-titania-niobia glass according to claim 1 , wherein the OH content of the glass is less than 200 ppm.5. The silica-titania-niobia glass according to claim 1 , wherein the OH content of the glass is less than 100 ppm.6. The silica-titania-niobia glass according to claim 1 , wherein the OH content of the glass is in the range of 10-70 ppm.7. A method for making a silica-titania-niobia glass having a composition comprising niobia in an amount in the range of 0.005 wt. % to 1.2 wt. % claim 1 , titania in an amount in the range of 5 wt. % to 10 wt. % claim 1 , and the remainder ...

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Номер записи: 85

27-03-2014 дата публикации

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

Номер: US20140087194A1

Автор: Dejneka Matthew John, Smith Charlene Marie

Принадлежит: CORNING INCORPORATED

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 ...

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Номер записи: 86

27-03-2014 дата публикации

GLASS PLATE FOR THIN FILM SOLAR CELL

Номер: US20140087935A1

Автор: Muguruma Masato

Принадлежит:

A glass sheet for a thin-film solar cell of the present invention is characterized by including, as a glass composition in terms of mass %, 45 to 60% of SiO, more than 8.0 to 18% of AlO, 0 to 15% (excluding 15%) of BO, 1 to 40% of MgO+CaO+SrO+BaO, and 1 to 30% of NaO+KO, and having a strain point of more than 580° C. 1. A glass sheet for a thin-film solar cell , comprising , as a glass composition in terms of mass % , 45 to 60% of SiO , more than 8.0 to 18% of AlO , 0 to less than 15% of BO , 1 to 40% of MgO+CaO+SrO+BaO , and 1 to 30% of NaO+KO , and having a strain point of more than 580° C.2. The glass sheet for a thin-film solar cell according to claim 1 , wherein the glass sheet for a thin-film solar cell has a mass ratio NaO/(MgO+CaO+SrO+BaO+LiO+NaO+KO) of 0.05 to 0.5.3. The glass sheet for a thin-film solar cell according to claim 1 , wherein the glass sheet for a thin-film solar cell has 28 to 50% of SiO—AlO claim 1 , comprises 15 to 40% of MgO+CaO+SrO+BaO and 0 to 10% of MgO+CaO claim 1 , has a mass ratio CaO/MgO of more than 1.0 claim 1 , and comprises 0 to 30% of CaO+SrO.4. The glass sheet for a thin-film solar cell according to claim 1 , further comprising 0.01 to 1% of FeO.5. The glass sheet for a thin-film solar cell according to claim 1 , wherein the glass sheet for a thin-film solar cell further comprises 0.01 to 1% of SOand is formed by a float method.6. The glass sheet for a thin-film solar cell according to claim 1 , wherein the glass sheet for a thin-film solar cell has a strain point of more than 600 to 650° C.7. The glass sheet for a thin-film solar cell according to claim 1 , wherein the glass sheet for a thin-film solar cell has a thermal expansion coefficient of 70 to 100×10/° C.8. The glass sheet for a thin-film solar cell according to claim 1 , wherein the glass sheet for a thin-film solar cell has a temperature at 10dPa·s of 1 claim 1 ,200° C. or less.9. The glass sheet for a thin-film solar cell according to claim 1 , wherein the glass ...

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Номер записи: 87

03-04-2014 дата публикации

PATTERNED CURVIFORM SURFACE OF GLASS AND METHOD FOR MANUFACTURE THE SAME

Номер: US20140093681A1

Автор: LIANG NAI-YUE

Принадлежит:

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 ...

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Номер записи: 88

10-04-2014 дата публикации

GLASS FOR CHEMICAL STRENGTHENING

Номер: US20140099501A1

Автор: KUNO Kazuhide, Yamamoto Hiroyuki

Принадлежит: Asahi Glass Company, Limited

There is provided a glass for chemical strengthening having a black color tone and excelling in characteristics preferred for the purposes of housing or decoration of an electronic device, that is, bubble quality, strength, and light transmittance characteristics. A glass for chemical strengthening contains, in mole percentage based on following oxides, 55% to 80% of SiO, 3% to 16% of AlO, 0% to 12% of BO, 5% to 16% of NaO, 0% to 4% of KO, 0% to 15% of MgO, 0% to 3% of CaO, 0% to 18% of ΣRO (where R represents Mg, Ca, Sr, Ba or Zn), 0% to 1% of ZrO, and 0.1% to 7% of a coloring component having at least one metal oxide selected from the group consisting of oxides of Co, Mn, Fe, Ni, Cu, Cr, V and Bi. 1. A glass for chemical strengthening comprising , in mole percentage based on following oxides , 55% to 80% of SiO , 3% to 16% of AlO , 0% to 12% of BO , 5% to 16% of NaO , 0% to 4% of KO , 0% to 15% of MgO , 0% to 3% of CaO , 0% to 18% of ΣRO (where R represents Mg , Ca , Sr , Ba or Zn) , 0% to 1% of ZrO , and 0.1% to 7% of a coloring component having at least one metal oxide selected from the group consisting of oxides of Co , Mn , Fe , Ni , Cu , Cr , V and Bi.2. The glass for chemical strengthening according to claim 1 ,{'sub': 2', '3', '3', '4', '2', '3', '2', '5, 'wherein the coloring component in the glass is constituted of, in mole percentage based on oxides, 0.01% to 6% of FeO, 0% to 6% of CoO, 0% to 6% of NiO, 0% to 6% of MnO, 0% to 6% of CrO, and 0% to 6% of VO.'}3. The glass for chemical strengthening according to claim 1 , comprising 0.005% to 2% of a color correcting component having at least one metal oxide selected from the group consisting of oxides of Ti claim 1 , Ce claim 1 , Er claim 1 , Nd and Se.4. The glass for chemical strengthening according to claim 1 , comprising claim 1 , in mole percentage based on following oxides claim 1 , 60% to 80% of SiO claim 1 , 3% to 15% of AlO claim 1 , 5% to 15% of NaO claim 1 , 0% to 4% of KO claim 1 , 0% to 15% of ...

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Номер записи: 89

06-01-2022 дата публикации

GLASS SUBSTRATES WITH MODIFIED SURFACE RESISTANT TO WEATHERING

Номер: US20220002184A1

Автор: Smith Nicholas James

Принадлежит:

A light guide plate that includes a glass substrate including an edge surface and at least two major surfaces defining a thickness and an edge surface, the edge surface configured to receive light from a light source and the glass substrate configured to distribute the light from the light source, wherein the glass substrate comprises an alkali-containing bulk and an alkali-depleted surface layer, the alkali-depleted surface layer comprising about 0.5 atomic % alkali or less. Display products and methods of processing a glass substrate for use as a light guide plate are also provided. 1. A light guide plate , comprising:a glass substrate including an edge surface and at least two major surfaces defining a thickness and an edge surface configured to receive light from a light source and the glass substrate configured to distribute the light from the light source; wherein the glass substrate comprises:an alkali-containing bulk; andan alkali-depleted surface layer, the alkali-depleted surface layer comprising about 0.5 atomic % alkali or less.2. The light guide plate of claim 1 , wherein the alkali-depleted surface layer comprises about 0.5 atomic % alkaline earth or less.3. The light guide plate of claim 1 , wherein the alkali-depleted surface layer comprises greater than about 90 mol % SiOand at least about 5 mol % AlO.4. The light guide plate of claim 1 , wherein the light guide plate exhibits a transmittance normal to the alkali-depleted surface layer greater than 90% over a wavelength range from 400 nm to 700 nm.5. The light guide plate of claim 1 , further comprising one or more of a light extraction feature (LEF) and a lenticular lens on the alkali-depleted surface layer.6. The light guide plate of claim 1 , wherein the alkali-depleted surface layer reduces formation of weathering products upon aging at 60° C. and 90% relative humidity for 960 hours compared to a light guide plate that does not comprise an alkali-depleted surface layer.8. The light guide plate ...

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Номер записи: 90

06-01-2022 дата публикации

GLASS ARTICLES EXHIBITING HIGH COMPRESSIVE STRESS, AUTOMOTIVE INTERIOR SYSTEMS THAT INCLUDE SUCH GLASS ARTICLES AND METHODS FOR MAKING THE SAME

Номер: US20220002186A1

Автор: Gross Timothy Michael

Принадлежит:

Embodiments of this disclosure pertain to glass articles with a glass composition including about 65 mol % or greater SiO; 8 mol % or greater AlO; from about 3.5 mol % to about 16 mol % NaO; up to about 5 mol % PO, and up to about 15 mol % ZnO. In one or more embodiments, the glass composition includes about 56% or greater SiO; about 8 mol % or greater AlO; from about 3.5 mol % to about 16 mol % NaO; up to about 1 mol % PO; and up to about 15 mol % ZnO. In some embodiments, the glass article exhibits a CS at a depth of greater than 30 micrometers of about 1 GPa or greater. Embodiments of an automotive interior system including such glass articles and methods of making glass articles are also disclosed. 1. A glass article comprising a glass composition , the glass composition comprising:{'sub': '2', 'SiOin an amount of about 65 mol % or greater;'}{'sub': 2', '3, 'AlOin an amount of about 8 mol % or greater;'}{'sub': '2', 'NaO in an amount from about 3.5 mol % to about 16 mol %;'}{'sub': 2', '5, 'PO; and'}{'sub': 2', '5, 'ZnO, wherein POis present in an amount up to about 5 mol %, and wherein ZnO is present in an amount up to about 15 mol %.'}2. The glass article of claim 1 , wherein the glass composition comprises SiOin an amount in a range from about 65 mol % to about 77 mol %; and AlOin an amount in a range from about 8 mol % to about 24 mol %.3. The glass article of claim 1 , wherein the glass composition comprises KO in an amount from about 0 mol % to about 11 mol %; MgO in an amount from about 0 mol % to about 13 mol %; and SrO in an amount from about 0 mol % to about 11.5 mol %.4. The glass article of claim 1 , wherein the glass composition comprises SnOin an amount from about 0 mol % to about 0.5 mol %.5. The glass article of claim 1 , wherein the glass composition comprises SiOin an amount from about 65 mol % to about 68 mol %; and AlOin an amount from about 10 mol % to about 15 mol %.6. The glass article of claim 1 , wherein the glass composition comprises ...

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Номер записи: 91

02-01-2020 дата публикации

LAMINATED GLASS ARTICLE AND METHOD FOR FORMING THE SAME

Номер: US20200001575A1

Автор: Cleary Thomas Michael, Gomez Sinue, Hu Guangli, Schaut Robert Anthony, Smith Charlene Marie, Venkataraman Natesan

Принадлежит:

A glass article includes a glass core layer and a glass cladding layer adjacent to the core layer. An average coefficient of thermal expansion (CTE) of the core layer is greater than an average CTE of the cladding layer. An effective 10P temperature of the glass article is at most about 750° C. 1. A method comprising:contacting a glass sheet with a forming surface to form a shaped glass article, the glass sheet comprising a glass core layer and a glass cladding layer adjacent to the core layer;{'sup': '9.9', 'wherein an average coefficient of thermal expansion (CTE) of the core layer is greater than an average CTE of the cladding layer, and an effective 10P temperature of the glass sheet is at most about 750° C.'}2. The method of claim 1 , further comprising printing a pattern on the glass sheet prior to the contacting step.3. The method of claim 2 , wherein the printing step comprises printing the pattern on the glass sheet using a printing process selected from the group consisting of screen printing claim 2 , flexographic printing claim 2 , gravure printing claim 2 , photo-pattern printing claim 2 , pad printing claim 2 , and combinations thereof.4. The method of claim 2 , wherein the pattern comprises a conductive pattern.5. The method of claim 2 , wherein the pattern comprises at least one of an ink or an enamel.6. The method of claim 2 , wherein the glass sheet is substantially planar during the printing step.7. The method of claim 2 , further comprising firing the glass sheet after the printing step and prior to or concurrent with the contacting step. This application is a divisional of U.S. patent application Ser. No. 15/309,055 filed on May 7, 2015 which claims the benefit of priority under 35 U.S.C. § 371 of International Application No. PCT/US2015/029671 filed May 7, 2015, which claims the benefit of priority to U.S. Application No. 61/989,704 filed May 7, 2014 the content of each of which is incorporated herein by reference in its entirety.This ...

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Номер записи: 92

05-01-2017 дата публикации

JIG FOR LOADING PLATE GLASS OF TEMPERED GLASS MANUFACTURING APPARATUS

Номер: US20170001814A1

Автор: Kim Ho Kwon

Принадлежит:

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 ...

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Номер записи: 93

07-01-2021 дата публикации

HIGH STRENGTH GLASS-CERAMICS HAVING PETALITE AND LITHIUM SILICATE STRUCTURES

Номер: US20210002164A1

Автор: Beall George Halsey, Fu Qiang, Smith Charlene Marie

Принадлежит: CORNING INCORPORATED

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 ...

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Номер записи: 94

07-01-2021 дата публикации

GLASSES AND GLASS CERAMICS INCLUDING A METAL OXIDE CONCENTRATION GRADIENT

Номер: US20210002167A1

Автор: Hu Guangli, Smith Charlene Marie, Tang Zhongzhi, Tietje Steven Alvin

Принадлежит: CORNING INCORPORATED

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 ...

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Номер записи: 95

07-01-2021 дата публикации

GLASS-BASED ARTICLES INCLUDING A METAL OXIDE CONCENTRATION GRADIENT

Номер: US20210002168A1

Автор: Dejneka Matthew John, Gomez Sinue, Hu Guangli, Smith Charlene Marie, Tang Zhongzhi, Tietje Steven Alvin

Принадлежит: CORNING INCORPORATED

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 ...

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Номер записи: 96

07-01-2016 дата публикации

ALKALI FREE GLASS AND METHOD FOR PRODUCING ALKALI FREE GLASS

Номер: US20160002095A1

Автор: Koike Akio, Nishizawa Manabu, TSUJIMURA Tomoyuki

Принадлежит: Asahi Glass Company, Limited

The present invention relates to an alkali-free glass having a strain point of 725° C. or higher, an average thermal expansion coefficient at from 50 to 300° C. of from 30×10to 40×10/° C., a temperature Tat which a glass viscosity is 10dPa·s of 1,710° C. or lower, and a temperature Tat which a glass viscosity is 10dPa·s of 1,320° C. or lower, the alkali-free glass including, in terms of mol % on the basis of oxides, SiO: 66 to 70, AlO: 12 to 15, BO: 0 to 1.5, MgO: more than 9.5 and 13 or less, CaO: 4 to 9, SrO: 0.5 to 4.5, BaO: 0 to 1, and ZrO: 0 to 2, in which MgO+CaO+SrO+BaO is from 17 to 21, MgO/(MgO+CaO+SrO+BaO) is 0.4 or more, MgO/(MgO+CaO) is 0.4 or more, MgO/(MgO+SrO) is 0.6 or more, and the alkali-free glass does not substantially contain an alkali metal oxide. 1. (canceled)3. The method for producing the alkali-free glass according to claim 2 , wherein a silica sand claim 2 , in which a median diameter Dis from 20 to 27 μm claim 2 , a proportion of particles having a particle size of 2 μm or less is 0.3 vol % or less claim 2 , and a proportion of particles having a particle size of 100 μm or more is 2.5 vol % or less claim 2 , is used as a silicon source of SiO.4. The method for producing the alkali-free glass according to claim 2 , wherein an alkaline earth metal source containing a hydroxide of an alkaline earth metal in an amount of from 15 to 100 mol % (in terms of MO claim 2 , provided that M is an alkaline earth metal element claim 2 , and hereinafter the same) of 100 mol % of the alkaline earth metal source is used as the alkaline earth metal source of MgO claim 2 , CaO claim 2 , SrO and BaO.5. The method for producing the alkali-free glass according to claim 2 , wherein a silica sand claim 2 , in which a median diameter Dis from 20 to 27 μm claim 2 , a proportion of particles having a particle size of 2 μm or less is 0.3 vol % or less claim 2 , and a proportion of particles having a particle size of 100 μm or more is 2.5 vol % or less claim 2 , is ...

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Номер записи: 97

07-01-2016 дата публикации

Chemically Toughened Flexible Ultrathin Glass

Номер: US20160002103A1

Автор: HE Feng, Wang Xi, Zimmer José

Принадлежит:

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 ...

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Номер записи: 98

04-01-2018 дата публикации

GLASSES AND GLASS CERAMICS INCLUDING A METAL OXIDE CONCENTRATION GRADIENT

Номер: US20180002223A1

Автор: Hu Guangli, Smith Charlene Marie, Tang Zhongzhi, Tietje Steven Alvin

Принадлежит:

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 ...

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Номер записи: 99

02-01-2020 дата публикации

High strength glass-ceramics having petalite and lithium silicate structures

Номер: US20200002221A1

Автор: Charlene Marie Smith, George Halsey Beall, Qiang Fu

Принадлежит: Corning Inc

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.

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Номер записи: 100