СПОСОБ ПРОИЗВОДСТВА ЗЕЛЕНОГО ТЕПЛОПОГЛОЩАЮЩЕГО СТЕКЛА

Способ производства зеленого теплопоглощающего стекла на базе основного стекла, включающего, мас. %: 68-72 SiO2; 0,3-4,0 Al2O3; 7-10 СаО; 3-4,5 МgO; 9-14 Na2O; 0,3-1,0 Fe2 O3; 0,3-0,5 SO3, включает составление шихты из стеклообразующих и железосодержащих компонентов и сульфата натрия. Дополнительно вводят сульфат калия и смесь кобальт-титансодержащих компонентов и графита в количествах и сочетаниях, определяемых соотношением оксидов железа и обеспечивающих светопропускание стекла при толщине 5 мм не менее 70%, а пропускание полной солнечной энергии не более 50%. При этом стекло имеет максимальное пропускание в области длин волн 0,50-0,55 мкм. 1 з. п. ф-лы.

СОСТАВ ЦВЕТНОГО СТЕКЛА ДЛЯ АВТОМОБИЛЬНЫХ ОБЗОРНЫХ ПАНЕЛЕЙ СО СНИЖЕННЫМ СДВИГОМ ПРОПУСКАЕМОГО ЦВЕТА И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Предложен состав нейтрального серого стекла для автомобильных обзорных панелей (стекол) со сниженными характеристиками сдвига пропускаемого цвета. Состав стекла имеет базовую часть, содержащую 65-75 вес.% SiO2, 10-20 вес.% Na2O, 5-15 вес.% CaO, 0-5 вес.% MgO, 0-5 вес.% Al2O3, 0-5 вес.% К2О. В состав также входят основные красители, включающие 0,70-0,75 вес.% Fe2О3, 0-15 млн-1 СоО, 1-15 млн-1 Se. Стекло имеет проницаемость света по меньшей мере 65% при толщине 3,9 мм, коэффициент окисления-восстановления составляет 0,2-0,675, TSET составляет менее или равное 65%, а стандартный сдвиг цвета составляет менее 6. Техническая задача изобретения - получение стекла с улучшенными характеристиками по контролю солнечного излучения и низким сдвигом пропускаемого цвета. 6 н. и 23 з.п. ф-лы. 8 табл., 1 ил.

ЦВЕТНОЕ СЕРО-ЗЕЛЕНОЕ ЩЕЛОЧНО-ИЗВЕСТКОВОЕ СТЕКЛО

Изобретение относится к цветному щелочно-известковому стеклу темно-зеленого цвета с сероватым оттенком. Стекло содержит менее 0,4% (по массе) FeO при источнике света А и толщине 4 мм, оно имеет пропускание света (TLA4) выше 30%, избирательность (SE4) выше 1,55, пропускание ультрафиолетовых лучей (TUV4) ниже 10%. Стекло имеет чистоту возбуждения выше 5% при толщине стекла 5 мм. Это стекло в особенности подходит для изготовления заднего стекла и задних боковых стекол автомобиля. Цветное стекло имеет следующий состав, мас. %: Na2O 10 - 20; СаО 0-16; SiO2 60 - 75; К2О 0 - 10; MgО 0 - 10; Al2O3 0 - 5; ВаО 0 - 2; К2О +Na2O 10 - 20; MgO + CaO + BaO 10-20, менее 0,4 FeO, красящие агенты. Техническая задача изобретения - получение стекла с высокой избирательностью и высокой поглощающей способностью к ИК-излучению. 16 з.п. ф-лы, 4 табл.

АВАНТЮРИНОВОЕ СТЕКЛО

Изобретение относится к стекольной промышленности, а именно к составам авантюриновых стекол, и может быть использовано для получения декоративных облицовочных материалов и ювелирных изделий. Техническая задача изобретения состоит в увеличении микротвердости и механической прочности, расширении цветовой гаммы, усилении авантюринового эффекта за счет введения оксидов В2О3, Сu2O, TiO2, К2O, оксидов РЗЭ. Авантюриновое стекло имеет следующий состав, мас. %: SiO2 28,969-49,835; ТiO2 16,33-20,0; Al2O3 2,90-7,90; Fe2O3 2,85-5,14; FeO 0,01-0, 93; CaO 15,70-17,10; MgO 1,10-2,50; MnO 0,15-3,30; Na2O 4,00-6,00; K2O 1,00-3,00; Р2O5 0,43-0,86; Cr2О3 0,91-5,00; Cu2O 0, 01-2,00; В2O3 0,10-2,00; La2О3 0,005-0,01; СеО2 0,001-0,005; Sm2O3 0,002-0,01. 2 табл.

НЕЙТРАЛЬНОЕ СТЕКЛО С НИЗКИМ КОЭФФИЦИЕНТОМ ПРОПУСКАНИЯ

Использование: остекление оборудования, транспортных средств. Сущность изобретения: нейтральное, обычно зелено-серое натриево-калиево-силикатное стекло с низким коэффициентом пропускания (не более 25% пропускания света) снизило коэффициент пропускания солнечной энергии при внесении в него следующих красящих компонентов в весовых пропорциях: Fe2O3 (суммарное железо) 1,3 - 2,0; NiO 0,01 - 0, 05; CoO 0,02 - 0,04; Se 0,0002 - 0,003. Это стекло имеет показатель двухвалентного железа 18 - 30. Стекло имеет коэффициент пропускания суммарной солнечной энергии не более 25%, а коэффициент пропускания УФ-излучения не более 15% при толщине 4 мм. Технический результат изобретения - снижение коэффициента пропускания света. 2 с. и 22 з.п.ф-лы, 2 табл.

СТЕКЛО

Использование: в качестве облицовочного материала. Сущность изобретения: стекло содержит в мас. SiO2 54-55 TiO2 0,4-0,6 Al2O3 9-10,4, FeO 1,1-2,4 Fe2O3 11,2-12,8, CaO 8-9, MgO 0,5-1,3 Na2O 0,5-1,2 K2O 0,5-1 MoO3 0,2-0,3 WO3 0,1-0,3 MnO2 3-4 B2O3 5,2-6,8 NiO 0,5-1,1. Микротвердость стекла 875-895 кг/мм2 1 табл.

ШИХТА ДЛЯ ПОЛУЧЕНИЯ МАРБЛИТА ЧЕРНОГО ЦВЕТА

Изобретение относится к области получения декоративно-облицовочных материалов, в частности марблита. Техническим результатом предлагаемого изобретения является снижение температуры варки марблита, увеличение термостойкости и прочности на изгиб при существенном уменьшении энергозатрат на производстве. Шихта для получения марблита черного цвета содержит следующие компоненты, масс. %: отходы горнорудной промышленности 72,5; сода 22,5; мел 3,5; глинозем технический 1,5.

СПОСОБ ПРОИЗВОДСТВА ЗЕЛЕНОГО ТЕПЛОПОГЛОЩАЮЩЕГО СТЕКЛА ДЛЯ ТРАНСПОРТА И СТРОИТЕЛЬСТВА

Изобретение относится к стекольной промышленности. Техническим результатом изобретения является получение зеленого теплопоглощающего стекла для транспорта и строительства, имеющего коэффициент светопропускания видимого излучения (T)≥70% и коэффициент пропускания полной солнечной энергии (T)≤50% при доминантной длине волны λd - 498-530 нм и степенью восстановления FeOв нем до FeO 25-30%. Способ производства зеленого теплопоглощающего стекла осуществляют путем регулирования ОВП стекломассы за счет введения в шихту смеси окислителей и восстановителей: окислителей - сульфата натрия и натриевой селитры (NaSO+NaNO) в суммарном количестве 10,0-12,5 кг на тонну стекломассы при соотношении (NaSO:NaNO)=(4-2):1 и восстановителя углерода (С) при соотношении (NaSO+NaNO):С=1:(0,02-0,025). Возможно введение в шихту дополнительных красителей ряда CrO, CuO, PrO, VOпри их содержании в стекле, мас.%: CrO- 0-0,03; CuO - 0-0,25; PrO- 0-0,07; VO- 0-0,08 и их смесей. 2 з.п. ф-лы, 1 табл., 5 пр.

ДЕКОРАТИВНОЕ СТЕКЛО

Изобретение относится к составам декоративных стекол и может быть использовано как облицовочный материал в строительстве, для изготовления ювелирных изделий и сувениров, а также для облицовки каминов. Повышенная термостойкость и кислотостойкость стекла достигаются благодаря тому, что декоративное стекло содержит, мас.%: SiO2 48,9 - 55,0; TiO2 14,9 - 22,0; Al2O3 0,50 - 14,9; CaO 0,30 - 20,1; MnO 0,017 - 0,10; MgO 0,10 - 15,50; Fe2O3 0,22 - 4,50; FeO 0,15 - 5,10; Na2O 0,30 - 8,65; K2O 0,20 - 7,20; CuO 0,003 - 2,15.

СПОСОБ ПРОИЗВОДСТВА ЛИСТОВОГО СТЕКЛА ГОЛУБОЙ, ЗЕЛЕНОЙ, ЯНТАРНОЙ И КОРИЧНЕВОЙ ГАММЫ

Способ производства листового стекла голубой, зеленой, янтарной и коричневой цветовой гаммы путем составления шихты из стеклообразующих, железо - и серосодержащих компонентов с последующей варкой и выработкой, отличающийся тем, что регулирование цвета осуществляют путем дополнительного введения в шихту смеси мелкодисперсных металлических порошков алюминия (А1) и цинк (Zn), и графита (С) в количестве 0,3-0,8 мас. %, при этом соотношение: ...

ЖЕЛТОЕ СТЕКЛО

Изобретение относится к стеклу, предназначенному для изготовления желтых селективных светофильтров (светотехника) и всевозможных декоративных целей. Предлагаемое желтое стекло получено на фосфатной основе, окрашено сульфидом кадмия при стандартных условиях синтеза. Стекло имеет следующий состав, мас.%: Р2О5 40 - 60, Al2O3 5 - 10, В2О3 3 - 8, La2O3 1 - 5, ВаО 18 - 30, SiO2 0,1 - 10, CdS 2 - 7, по крайней мере один оксид из группы K2O, Na2O 4 - 10.

ИСТОЧНИК СВЕТА (ВАРИАНТЫ)

Изобретение относится к светотехнике. В известном источнике света, содержащем оболочку, селективно пропускающую излучение в диапазоне длин волн от 250 до 800 мкм и по крайней мере один излучатель из вещества, генерирующего свет при прохождении через него электрического тока, оболочка по первому варианту источника света выполнена из стеклянной колбы с непрерывно изменяющимся коэффициентом пропускания излучения в диапазоне длин волн от 180 до 800 мкм и нанесенного на нее пленочного композиционного покрытия из радиационно стойкого полимера и неорганического наполнителя, перераспределяющего излучение, прошедшее через колбу, в пространстве и по спектру, а вещество излучателя обеспечивает получение света в диапазоне длин волн от 180 до 800 мкм. По второму варианту источника света в него дополнительно введен излучатель из вещества, обладающего люминесцентными свойствами.

ДЕКОРАТИВНОЕ СТЕКЛО

Декоративное стекло относится к промышленности строительных материалов, в частности к составам декоративных стекол, полученных из зол и шлаков теплоэнергетики, и может быть использовано в промышленном и гражданском строительстве в качестве облицовочного материала. Цель изобретения заключается в снижении температуры варки стекла, расширении интервала выработки, снижении себестоимости. Для реализации этой цели стекло содержит, мас.% : SiO2 28,67 - 28,96; Al2O3 3,08; Fe2O3 6,5 - 6,96; FeO 8,12; CaO 20,87; MgO 2,09 - 2,97; Na2O 3,64 - 3,91; K2O 0,25; MnO 0,25; Cr2O3 1,46; Cu2O 3,0. Полученный материал имеет следующие характеристики: температура варки 1300 - 1340oС, интервал выработки 100 - 120oС.

Красное стекло

Изобретение относится к составам красных стекол и может быть использовано при производстве светотехнических стеклоизделий. С целью увеличения общего светопропускания красное стекло содержит, мас.%: SIO265,0 - 71,0 ZNO 7,0 - 12,0 CAO 1,0 - 5,0 MGO 0,01 - 3,0 по крайней мере один компонент из группы NA2O 6,0 - 12,0 и K2O 4,0 - 10,0 AI2O30,01 - 3,0 CDO 0,3 - 1,6 SE 0,2 - 1,0 S 0,1 - 1,0 LIO 0,001 - 0,2 FЪ0,0001 - 0,4, B2O32,0 - 10,5. Светопропускание 13 - 15%. 2 табл.

Декоративное стекло

Изобретение относится к стекольной промышленности, я именчо к составам окрашенных декоративных стекол, которые могут быть использованы для лроизводстра окрашенных торных изделий , декоративно-художественного и облицовочного материалов. С целью увеличения водоустойчивости декоративное стекло содержит, MIC,%: Si02 ЗС,90-45,60; СаО 44,52-50,60; МрО 1,22-6,50; Л1203 1.00-4.J6; rznf 0,44-6,42; UatO 0, 10-0,j КгОО,15- 1,14; ГегО 0,45-2,58; FeO 0,14- 0,34; ТЮ2 0,10-0,50; MtiO 0,02-0,36; NiO 0,01-0,03; 0,09-ii,20. Водостойкость 0,022-0,038 температура варки 3JO-1350°C, KJ1TP ...

Глушеное стекло

... . ГЛУШЕНОЕ СТЕКЛО, включающее SiOg, , , СаО, MgO, ZnO, TiO, , , о т л и ч a ю щ ее с я тем, что, с целью увеличения .механической прочности и степени глушения, оно содержит указанные компоненты в следующих количествах, мас.%: SiOe 40,0-57,0 17,5-13,0 AlaOj 1,0-t,5 10,5-13,5 СаО 5,9-7,8 MgO 6,5-10,8 ZnO TiOi 3,5-7, 2,8-3,5 Na,0 2,3-3,2 ...

Стекло для получения пеноматериала

Изобретение относится к составам стекол , используемых для получения пеномэте- риала: легкого, конструкционного и теплоизоляционного. Цель изобретения - повышение прочности готового продукта. Стекло для пеноматериала содержит, мас.%: SIOz 57,66-66,13; А120з 2,75-3,75: СаО 20.91-29,35; МдО 0,94-1,32; R20 6,21- 14,07; Ре20з 0,06-0,08; Р20& 0,67-0 95; F0.36- 0,49; 50з 0,13-0,19. Механическая прочность на сжатие 68,4-80 кг/см2. 3 1эбл.

Стекло для светофильтров

Способ получения стекла пурпурного цвета

Изобретение относится к способу получения цветных стекол, применяющихся в производстве сортового, художественного и светотехнического стекла. С целью стабилизации цветовых характеристик и получения качественного стекла,селен один или в красящей смеси вводится в шихту с периодическим изменением его количества . Первоначальная порция содержит максимальное количество селе- на на расчетную единицу стекломассы (Ср), а последующие порции периодически уменьшаются до половинного значения максимального количества, а далее производится периодическое увеличение ввода селена до значения Со в тех же количествах, на которых он уменьшался. Изменение концентрации селена в каждый последующий период не должно быть более 0,1 от Со. Стекло характеризуется стабиль- ньм пурпурным цветом, не содержит пузырей и мошки. с «9 (Л ...

Стекло

Красное глушеное стекло

Изобретение относится к составам цветных глушеных стекол и может быть использовано в стекольном приборостроении ртутных термометров, С целью снижения температуры, соответствующей интервалу вязкости, повьше- ния смачивающей способности и сокращения расхода дорогого и дефицитного сырья, красное тлушеное стекло содержит, мас.%: SiO 65,5-67,6; ZnO 10,7-13,0; 2,2-3,5j KjO 2,8-3,9; NajO 10,6-11,4; AljOj 0,5 - 0,8; F 1,1-1,7; CdS 1,5-1,7; Se 0,6-0,8. 2 табл. Oi CO 00 4 ...

Рубиновое стекло

Использование: облицовочные и отделочные материалы. Сущность изобретения: рубиновое стекло содержит оксид алюминия 6,9-9,1% БФ А120з, оксид железа 2.7- 6% БФ РезОз, оксид калия 2,5-4,6% БФ КаО, оксид кальция 20.4-25,1% БФ СаО, оксид магния 0,8-3% БФ МдО, оксид меди 0,5- 1,5% БФ CujO, медь коллоидная 0,2-0,8% БФ Сиколл., оксид цинка 0,1-0.9% БФ ZnO. углерод 0,8-1, С. сера 0.5-1,2% БФ 5общ., оксид кремния остальное БФ SIO2. Характеристики стекла: коэффициент диффузного отражения при 620 нм 24-32%, при 750 нм 27-35%. 2 табл.

Стекло

Глушеное стекло

Изобретение направлено на снижение температуры варки и выработки . Согласно изобретению глушеное стекло содержит (в мас.%) SiOj 63,54-65,25, Al.Oi 1,89-2,05, CaO 27,62-28,98, MgO 0,42-0,44, 0,64-0,68, NajO 2,42-2,45, 1,76-1,86. Температура варки стекол 1400±20С, выработки 1260+10°С. 3 табл.

Стекло

Изобретение относится к составам глушенных стекол, предназначенных для изготовления отдельных строительных материалов, и может быть широко использовано в стекольной технологии. С целью повышения коэффициента линейного термического расширения стекло содержит, мас.% SIO258,0-66,0 AL2O35,8-6,6 FE2O30,1-0,3 CAO 7,0-9,0 MGO 5,0-6,0 ZNO 1,5-3,0 NA2O 9,5-12,3 K2O 3,5-6,5 КЛТР(92,7-102,7).10-71град. 1 табл.

Elektrische Infrarot-Glühlampe und Verfahren zur Herstellung derselben

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OPTISCHER FILTER AUS INORGANISCHEM MATERIAL FUER BLAUES LICHT.

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Borfreie bzw. borarme Grundemails

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KOMPOSITPIGMENT

Green glass composition

IMPROVEMENTS IN OR RELATING TO OPTICAL GLASS

... 1,272,812. Glass composition. PILKINGTON BROS. Ltd., B. PARKER, R. J. PARRY, and J. S. RUTHERFORD. 12 Aug., 1970 [29 Aug., 1969], No. 43096/69. Heading C1M. A phoria-free optical glass comprises in weight per cent B 2 O 3 19-25; SiO 2 12-20; La 2 O 3 17-27 and BaO 35-43 the said constituent together forming at least 95% by weight of the glass. The glass may also contain up to 5% by weight of at least one material of the group consisting of Al 2 O 3 , As 2 O 5 and CaO. The glass is prepared by melting a batch including boric acid, South African quartz and barium carbonate, maintaining it at 600‹ C. for twelve hours, cooling the glass to 500‹ C. at the rate of 20‹ C. per 24 hours for five days, and then allowing it to cool naturally to ambient temperature.

GLASS AND GLASS-CERAMIC PRODUCTS

... 1291488 Reinforced and foamed glass CORNING GLASS WORKS 30 Dec 1969 63223/69 Heading C1M Glass or glass-ceramic having at least a surface portion which is non-porous and exhibits rubber-like characteristics the glass consisting of an alkali metal silicate containing at least in its surface portion from 5 to 30 wt. per cent of water and the glass ceramic consisting of an alkali metal silicate or an alkali metal barium silicate containing in its surface portion 2 to 15% by weight of water. Alkali metal silicate glasses suitable may have the following compositions in mole per cent on the oxide basis, exclusive of the water contained in its volume; 60-94% SiO 2 and 6-40% R 2 O wherein R 2 O consists of Na 2 O, K 2 O and mixtures thereof and the total SiO 2 +R 2 O constitutes at least 85% of the composition; 78-85% SiO 2 , 13-19% R 2 O, wherein R 2 O consists of Na 2 O, K 2 O and mixtures thereof, and 2-5% F 2 , with at least one photosensitive metal in the indicated proportion in excess of ...

Method of forming coloured glass using a Fe2O3-Se complex

A method of forming a coloured glass is disclosed which comprises mixing a base material and a colorant including Fe2O3 and Se. The Fe2O3 and Se are combined in a frit or glass cullet as a Fe2O3-Se complex before being added with the base material. The complex form of selenium has a lower volatility than that of the uncomplexed form. The weight of Fe2O3 present may be at least 70% of the weight of selenium. The colorant may be added to the base material in a forehearth. The colorant may further contain MnO2.

Light-absorbing quartz glass and method of producing it

Chrome-free green privacy glass composition with improved ultra violet absorption

IMPROVEMENTS IN OR RELATING TO PHOTOTROPIC GLASS

... 1,260,416. Phototropic glass. CARLZEISS - STIFTUNG, [trading as JENAER GLASWERK SCHOTT & GEN.]. 27 March, 1969 [29 March, 1968], No. 16188/69. Heading C1M. A coloured copper-free phototropic glass comprises: (a) basic glass component(s); (b) phototropic agent(s) comprising silver halide; (c) colouring agent(s) containing coloured metal ions other than Cu. The phototropic agent(s) preferably include metallic silver. The glass may be a borosilicate or boroaluminate glass. The colouring may be achieved by the metal colouring ions or oxides Mn 2 O 3 , NiO, CoO, Cr 2 O 3 or Fe 2 O 3 , or by microcrystals colloidally dispersed through the glass, e.g. as in goldruby glasses or cadmium selenite glasses. The glasses are preferably formed by mixing the three components and melting; then solidifying, shaping and developing the phototropicity. The product glass preferably contains 0À07-0À80 wt. per cent of silver halide. A sensitizer may also be present, e.g. Cr 2 O 3 (0À0002-0À005 wt. per cent).

COLOURED GLASSES

... 1331492 Neutral coloured heat absorbing glass PILKINGTON BROS Ltd and C R BAMFORD 16 June 1971 [18 June 1970] 29701/70 Heading C1M A neutral grey, heat absorbing glass, having an excitation purity <6% and a dominant wavelength of 0À45-0À5 Á, which is nickel free, consists of a base SiO 2 -CaO-Na 2 O glass containing Fe 2 O 3 , Co 3 O 4 and Se: when 6 mm., or greater thickness is required the amounts being 0À2-0À5% w/w Fe 2 O 3 , 0À005-0À01% w/w CO 3 O 4 , and substantially 0À002% w/w Se, and when less than 6 mm. thickness is required the amounts are in inverse ratio to the thickness. The Se content may result from the addition of 0À1% Barium Selenide to the batch. The effect of Se is enhanced by the presence of NaNO 3 , and a suitable mixture includes 0.28-0À38% Fe 2 O 3 , 0À008-0À009% Co 3 O 4 , the amount of Se resulting from the addition of 0À03-0À055% Se to the batch, and NaNO 3 to provide at least 1À5% of the Na 2 O content of the glass.

COLOURING GLASS BODIES

... 1452542 Colouring glass bodies GLAVERBEL-MECANIVER 27 March 1974 [2 April 1973] 13644/74 Heading C1M A glass body is coloured, or its colour modified, by: (a) introducing into the glass, during or after its formation from the batch, a reducing agent; (b) preparing a treatment medium which comprises at least one silver salt reducible by the said reducing agent and at least one metal salt as diluting agent, the medium being formulated so as to have a relative electrode potential (defined) of -600 to +300 m.v.; and (c) contacting the glass with the treatment medium, while the said potential is in said range, and at a temperature such that silver ions diffuse into the glass surface, at least some of the ions being reduced to silver metal. The treatment medium may comprise molten salts or a paste, and may contact the glass for “-120 hours at 400- 540‹ C. The silver salt may be AgNO 3 , and the diluting agent may be KNO 3 (NaNO 3 may also be present). The K+ ions may exchange with Na ...

Glass composition

... 803,928. Glass compositions. PITTSBURGH PLATE GLASS CO. Sept. 28, 1956 [Oct. 28, 1955], No. 29666/56. Class 56. A rose smoke coloured glass containing selenium and iron oxide consists of in per cent. by weight : 60-70 SiO 2 , 1-15 Na 2 O, 0-8 K 2 O, the sum of alkali metal oxide being 9-15, 8-15 BaO, 5-10 Fe 2 O 3 and 0À01 to 0À05 Se. The glass may also include 0-6 per cent. ZnO, 0-1À5 per cent. F 2 and 0-0À04 per cent. CoO, with very small amounts of nickel, cerium and didymium. Specification 636,741 [Group XX] is referred to.

SPONTANEOUS OPAL GLASSES

TRANSPARENT GLASS CERAMIC DYE-CASH WITH VANADIUM OXIDE ADDITIVE DARKNESS

GEFARBTE GLASS COMPOSITIONS AND MOTOR VEHICLE GLAZING WITH MORE REDUCE FARBDURCHLASSIGKEITSVERSCHIEBUNG

GLASS COMPOSITION FOR A CONTAINER FOR HIGH-QUALITY NATURAL PRODUCTS AND GLASS PRODUCTS SUCH AS DISK GLASS

PROCEDURE FOR COLORS OR FOR THE MODIFICATION OF THE COLOR OF A GLASKORPERS

COLORED GLASS COMPOSITION AND THEREBY MANUFACTURED GLAZING

BRONZEFARBENES OR GRAUFARBENES LIME SODA SILICA GLASS

FLUORIDATED GLASS, ITS PRODUCTION AND WITH THE PRODUCTION PRESERVATION FLUORIDE MIXTURES.

GREY GLASS COMPOSITION

TRANSPARENT IR-ABSORBING GLASS AND PROCEDURE FOR ITS PRODUCTION.

COMPOSITION FOR THE PRODUCTION OF INFRARED ONES AND ULTRAVIOLET JETS ABSORBING GREEN GLASS

GLASS COMPOSITIONS

GLASS COMPOSITION

GREEN PRIVACY GLASS

GLASS COMPOSITION

AN ESSENTIALLY NICKEL-FREE LIME SODA SILICA GLASS WITH INFERIOR PERMEABILITY WITHIN THE U.V., VISIBLE ONES AND INFRARED RANGES

UV-RADIATION ABSORBING PACKING

BLUE VIEW PROTECTING GLASS

ON A MOTOR VEHICLE A PUTTING ON GLAZING SET

GREY GLASS COMPOSITION

Ultraviolet absorbing green tinted glass

CLEAR GLASS COMPOSITION WITH HIGH VISIBLE TRANSMITTANCE

Ultraviolet and infrared radiation absorbing glass

BLUE GLASS COMPOSITION FOR MAKING GLASS PANES

Colored glass containers and methods of producing them

Latent colorant, material compositions, soda-lime-silica glass compositions, and related methods of manufacturing: color-strikable glass containers. The latent colorant material compositions: may be introduced, into a plurality of base glass compositions having redox numbers in the range of -40 to +20 to produce color-strikable glass compositions and color- strikable glass containers. The latent colorant material compositions introduced into the base glass compositions include a mixture of cuprous oxide (Cu ...

Inspectable black glass containers

A soda-lime-silica glass container (10) related methods of manufacturing. A black-strikable glass composition having a base glass portion and a latent colorant portion is prepared. The base glass portion Includes soda-lime-silica glass materials and one or more blue colorant materials, and the latent colorant portion includes cuprous oxide (Cu ...

Method for the production of a form body comprising or containing a lithium silicate glass ceramic as well as form bodies

The invention relates to a method for the production of a medical form body comprising or containing a lithium silicate glass ceramic. To allow the strength of the form body to be increased compared to the prior art, it is proposed that in a preform body comprising or containing a lithium silicate glass ceramic with a geometry that corresponds to the form body a surface compressive stress is created by replacement of lithium ions with alkali ions of greater diameter, wherein after substitution of the ions the preform body is used as the form body.

Infrared and ultraviolet radiation absorbing green glass composition

Bronze glass composition

Soda-lime glass with blue shade

TRANSPARENT GLASS CERAMICS THAT CAN BE DARKENED BY ADDING VANADIUM OXIDE

The invention relates to transparent glass ceramics that can be darkened by adding vanadium oxide, said glass ceramics containing high-quartz mixed crystals as the major crystal phase. The invention further relates to a method for producing said glass ceramics and to various uses thereof. The inventive transparent glass ceramics that contain high-quartz mixed crystals as the major crystal phase and that can be darkened by adding vanadium oxide are characterized in that the glass ceramics, except for unavoidable traces, contain none of the chemical refining agents arsenic oxide and/or antimony oxide. The darkened glass ceramics are further characterized by a light transmission factor in the visible range of .tau. < 5 % and an IR transmission factor at 1600 nm of greater 65 % for glass ceramics of 4 mm thickness. Said transmission factors are adjusted by combining the vanadium oxide as the colorant with at least one solid, liquid and/or gaseous reducing agent added to the glass melt.

A METHOD OF RECYCLING BATCHES OF MIXED COLOR CULLET INTO AMBER, GREEN, OR FLINT GLASS WITH SELECTED PROPERTIES

An automated method for recycling mixed colored cullet glass (i.e., broken pieces of glass of mixed colors and types) into new glass products. A computer controlled process identifies the virgin glass raw materials, the desired target glass properties, the composition of a batch of mixed colored cullet, and the quantity of cullet to be used in the glass melt, and the computer controlled process automatically determines the proper amounts of raw materials to add to the batch of mixed colored cullet so that recycled glass is produced having the desired coloring oxides, redox agents, and glass structural oxides in the proper proportion. The recycled glass is then used to make glass products such as beer bottles.

DARK AMBER GLASSES AND PROCESS

MANUFACTURE OF COLORED GLASS

GREY GLASS COMPOSITION

A grey glass composition employing as its colorant portion at least iron (Fe2O3/FeO), cobalt and possibly erbium oxide (e.g., Er2O3) is provided. The glass enables high visible transmission, and satisfactory IR absorption, while at the same time achieving desired grey color. In certain example embodiments, the colorant portion includes: total iron (expressed as Fe2O3): <=0.35% erbium oxide (e.g., Er2O3): 0 to 0.3% selenium (Se): <= 15ppm cobalt oxide (e.g., Co3O4): 6 to 60 ppm glass redox: >=0.35. In other example embodiments, the glass may include higher total iron and/or a lower minimum redox.

OBJECT MADE OF HOLLOW GLASS

L'invention se rapporte à un objet en verre creux présentant, pour une épaisseur de 5 mm, une transmission lumineuse globale supérieure ou égale à 70%, ladite transmission lumineuse globale étant calculée en prenant en considération l'illuminant C tel que défini par la nonne ISO/CIE 10526 et l'observateur de référence colorimétrique C. I. E. 1931 tel que défini par la nonne ISO/CIE 10527, et un pouvoir filtrant supérieur ou égal à 65%, notamment 70%, ledit pouvoir filtrant étant défini comme étant égal à la valeur de 100% diminuée de la moyenne arithmétique de la transmission entre 330 et 450 nm, ledit objet ayant une composition chimique de type silico-sodo-calcique qui comprend les agents absorbants optiques suivants dans une teneur variant dans les limites pondérales ci-après définies : Fe2O3; (fer total) 0,01 à 0,15%; TiO2 0,5 à 3%; Sulfures (S2-) 0,0010 à 0,0050%; ...

BLUE GLASS COMPOSITIONS

A blue glass composition comprises conventional soda-lime-silica glass ingredients and specific amounts of Fe2O3, Co3O4, NiO, and optionally Se, resulting in an Illuminant C transmittance of 54% +3% at one quarter inch thickness, a dominant wavelength of 482nm +lnm, and a color purity of 13% +1%. 5179I ...

CARBON-CONTAINING BLACK GLASS MONOLITHS

... 2124946 9313159 PCTABS00024 Carbon-containing black glass compositions of matter having the empirical formula SiCxOy and derived from the polymer precursors having the residue (I) or (II).

INFRARED AND ULTRAVIOLET RADIATION ABSORBING GREEN GLASS COMPOSITION

Green-colored, infrared energy and ultraviolet radiation absorbing glass compositions comprise conventional soda-lime-silica float glass ingredients, a high concentration of moderately reduced iron, and ceric oxide. The resultant glass exhibits an Illuminant A visible light transmittance greater than 70%, a total solar energy transmittance less than about 46%, and an ultraviolet radiation transmittance less than about 38%, at glass thicknesses in the range of 3 mm to 5 mm. Optionally, a portion of the ceric oxide can be replaced with a predetermined quantity of titanium oxide.

BRONZE GLASS COMPOSITION

The present invention provides a glass composition having a bronze color and a luminous (visible) transmittance of 70% or greater. The base glass is a soda-lime-silica composition and iron and selenium are added as colorants. In one particular embodiment of the invention, a bronze colored glass with a luminous transmittance (C.I.E. illuminant A) of 70% and higher at a thickness of 4.1 millimeters may be attained by using as colorants: 0.4 to 0.6 wt.% Fe2O3, 0.09 to 0.17 wt.% FeO and 3 to 11 PPM Se. In addition, it is preferred that the total solar energy transmittance be no greater than 60%.

COBALT-FREE, BLACK, DUAL PURPOSE PORCELAIN ENAMEL GLASS

A borosilicate glass composition suitable for porcelain enamel applications is disclosed. Accordingly, a black, cobalt-free composition which contains a significant amount of iron oxide was found to be suitable for enameling cast iron and non-pickled steel substrates. The inventive glass is suitable for applications requiring black color, acid resistance, thermal durability and water vapor resistance. In particular, the inventive glass can be used both as a ground coat and a cover coat.

CHAMPAGNE COLORED GLASSES

This invention is directed to the production of a transparent glass which, in a thickness of 4 mm, exhibits a champagne color as defined by chromaticity coordinates (Illuminant C) within the ranges x 0.3166 - 0.3281 y 0.3211 - 0.3305 Y 77-88, said glass consisting essentially, by weight, of 0.05-0.25 iron oxide, expressed in terms of Fe2O3, >25-175 ppm nickel oxide, expressed in terms of NiO, and >10-100 ppm Se in a soda lime silicate base composition.

GREY SODA-LIME GLASS

Grey soda-lime glass is composed of main glass-forming constituents together with iron, selenium, cobalt and chromium as colouring agents in the following quantities: Fe2O3 0.5 to 0.9% Co 0.012 to 0.025% Se 0.0025 to 0.010% Cr2O3 0.005 to 0.020%. The proportions of colouring agents are such that the glass has a lighttransmission factor (TL) of less than 30% and an excitation purity (P) of less than 12%. The dark grey glass is especially appropriate for installation in the sunroofs of cars.

GREY SODA-LIME GLASS

Grey soda-lime glass is composed of main glass-forming constituents together with iron, selenium, cobalt and chromium as colouring agents in the followin g quantities: Fe2O3 0.5 to 0.9% Co 0.012 to 0.025% Se 0.0025 to 0.010% Cr2O3 0.005 to 0.020%. The proportions of colouring agents are such that the glass has a l ighttransmission factor (TL) of less than 30% and an exc itation purity (P) of less than 12%. The dark grey glass is especially appropriate for installation in the s unroofs of cars.

INFRARED AND ULTRAVIOLET RADIATION ABSORBING BLUE GLASS COMPOSITION

The present invention provides a blue colored glass using a standard soda-lime-silica glass base composition and additionally iron and cobalt as solar radiation absorbing materials and colorants. In particular, the blue colored glass includes about 0.53 to 1.1 wt.% total iron, preferably about 0.6 to 0.85 wt.% and about 5 to 40 PPM CoO, preferably about 15 to 30 PPM and a luminous transmittance of at least 55%. If desired, the composition may include up to about 100 PPM Cr203. The redox ratio for the glass of the present invention is maintain ed between about 0.25 to 0.35, preferably between about 0.28 to 0.33. The glass color is characterized by a dominant wavelength (DW) of about 485 to 491 nanometers and an excitation purity (Pe) of about 3 to 18 percent. In one particular embodiment of the invention, the color of the glass is characterized by a dominant wavelength in the range of about 487 to 489 nanometers and an excitation purity of about 3 to 8 percent at a thickness of about 0.084 ...

GREY GLASS COMPOSITION AND METHOD OF MAKING SAME

A high LTa, low UV and IR transmittance grey glass employing as its colorant portion iron (Fe2O3/FeO), erbium (Er2O3) and, optionally, titanium (TiO2). Enhanced effects are achieved by forming separate prebatch mixes, one of which includes rouge, metallic Si (optional), SiO and sand, the other including the remainder of ingredients, which after separate formation are then admixed to form the final, overall batch.

Für kurzwellige Bestrahlung photoempfindliches Silikatglas.

Verfahren zur Herstellung eines photographischen Bildes in einem Gegenstand aus Silikatglas, das einen kleinen Gehalt an Gold aufweist, und nach dem Verfahren hergestellter Gegenstand.

Für kurzwellige Bestrahlung photoempfindliches Silikatglas.

Durchsichtiges, für kurzwellige Bestrahlung photoempfindliches Silikatglas.

Verfahren zur Darstellung eines neuen basischen Esters.

Verre photosensible.

Procédé pour la production d'une image photographique dans un article en verre, et article obtenu par la mise en oeuvre du procédé.

Procédé de fabrication de fibres de verre colorées et fibre obtenue par ce procédé.

Verre vert

Red-dyed glass and method for producing same

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.

Display assembly comprising a glass-ceramic plate

Display assembly 1 comprising, on the one hand, a glass-ceramic plate 2 of the lithium aluminosilicate type, the optical transmission of which for a thickness of 4 mm is between 0.2% and 4% for at least one wavelength between 400 and 500 nm and, on the other hand, a luminous device 4, characterized in that the luminous device 4 comprises at least one polychromatic light source 5 having at least a first emission of nonzero intensity at said wavelength between 400 and 500 nm and at least a second emission of more than 500 nm, and such that the positioning of said source 5 is designed to allow display through said glass-ceramic plate 2.

COOKING DEVICE

One subject of the invention is a cooking device comprising internal elements including at least one heating means, control and/or monitoring means and at least one light-emitting device, said internal elements being covered with at least one glass or glass-ceramic plate colored using vanadium oxide, at least one light-emitting device not being of red color seen through said plate, said plate intrinsically having a light transmission ranging from 2.3% to 40% and an optical transmission of at least 0.6% for at least one wavelength within the region ranging from 420 to 480 nm, said cooking device being such that at least one masking means intended to mask at least one part of said internal elements is placed on top of, underneath or within said plate. 1. A cooking device , comprising:a first internal element, which is a heating element, a control element, a monitoring element, or any combination thereof;a second internal element, which is a light-emitting device;a glass or glass-ceramic plate colored with vanadium oxide covering the first and second internal elements; anda masking element disposed on top of, underneath, or within the plate, and which masks a part of the first and second internal elements,wherein at least one light-emitting device is not of red color seen through the plate, and the plate intrinsically having has a light transmission ranging from 2.3% to 40% and an optical transmission of at least 0.6% for wavelength within the region ranging from 420 to 480 nm.2. The device of claim 1 , wherein the heating element is selected from the group consisting of an induction heating element and a radiant heating element.3. The device of claim 2 , wherein the heating element is an induction heating element claim 2 , and the masking element is configured to mask almost all of the first and second internal elements with the exception of the light-emitting device.4. The device of claim 1 , wherein the plate intrinsically has a light transmission ranging from 3% to ...

Glass With Low Solar Transmittance

Disclosed is a glass with low solar transmittance, which is characterized by that it has a basic composition of soda-lime-silica glass, that it contains as coloring components 0.70-1.70 mass % of FeO(total iron in terms of ferric iron), 0.15-0.45 mass % of FeO (ferrous iron), 0-0.8 mass % of TiO, 100-350 ppm of CoO, 0-60 ppm of Se, 100-700 ppm of CrO, and 3-150 ppm of MnO, that it has a ratio (Fe/Fe) of ferrous iron to ferric iron of 0.20-0.80. This glass has superior ultraviolet absorbing performance and infrared absorbing performance (heat insulation performance) and an appropriate transparency. 1. A glass with low solar transmittance , comprising:a basic composition of soda-lime-silica glass, and [{'sub': 2', '3, '0.70-1.70 mass % of FeO(total iron in terms of ferric iron),'}, '0.15-0.45 mass % of FeO (ferrous iron),', {'sub': '2', '0-0.8 mass % of TiO,'}, '100-350 ppm by mass of CoO,', '0-60 ppm by mass of Se,', {'sub': 2', '3, '100-700 ppm by mass of CrO, and'}, '3-150 ppm by mass of MnO,, 'as coloring components'}{'sup': 2+', '3+, 'and having a ratio (Fe/Fe) of ferrous iron to ferric iron of 0.20-0.80, a solar transmittance of 30% or less, a visible light transmittance of 5-30% and an ultraviolet transmittance of 30% or less in terms of 4 mm thickness by a measurement using an illuminant A, a ratio of a visible light transmittance to a solar transmittance of 0.50 or greater and a ratio of a ultraviolet transmittance to the solar transmittance of 1.25 or less.'}2. The glass with low solar transmittance according to claim 1 , comprising 2.0 mass % or less of CeO.3. The glass with low solar transmittance according to claim 1 , comprising 100 ppm or less of NiO.4. The glass with low solar transmittance according to claim 1 , having a dominant wavelength of 480-580 nm of a transmitted light in terms of 4 mm thickness of the glass obtained by a measurement with an illuminant D65.5. The glass with low solar transmittance according claim 1 , wherein the basic ...

METHOD FOR PRODUCING COLORED GLASS

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

Colored glass housing

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

COLORED ALKALI ALUMINOSILICATE GLASS ARTICLES

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

Optical glass

An optical glass that is an oxide glass having a very high refractive index in spite of its low-dispersion property, having excellent glass stability and having less susceptibility to coloring.

Glass substrate and its production process

This invention relates to a glass substrate having a high glass transition temperature, a thermal expansion coefficient near that of soda-lime glass, and a low specific gravity, which is not prone to yellowing, and which also has good solubility and high productivity. The glass substrate has a composition in mass % in terms of oxide amount which is SiO 2 : 55-65%, Al 2 O 3 : 4-8%, MgO: 6-9%, CaO: 0.1-5%, SrO: 0.5-6%, BaO: 0-2%, MgO+CaO+SrO+BaO: 6.6-19%, Na 2 O: 0-5%, K 2 O: 9.5-21%, Na 2 O+K 2 O: 10-22%, ZrO 2 : 0.5-5%, and Fe 2 O 3 : 0.06-0.15%, has a specific gravity of 2.7 or less, an average thermal expansion coefficient at 50-350° C. of 80×10 −7 /° C. to 90×10 −7 /° C., and a glass transition temperature of at least 640° C., wherein, defining η as viscosity, the temperature satisfying log η=2 is at most 1550° C., and the yellow coloring b* of the glass surface is at most 8.

GLASS PLATE FOR DISPLAY DEVICE, PLATE GLASS FOR DISPLAY DEVICE AND PRODUCTION PROCESS THEREOF

A process for producing a plate glass for a display device having a thickness of at most 1.5 mm by a float process, wherein the plate glass comprises, as represented by mole percentage based on the following oxides, from 67 to 75% of SiO2, from 0 to 4% of Al2O3, from 7 to 15% of Na2O, from 1 to 9% of K2O, from 6 to 14% of MgO and from 0 to 1.5% of ZrO2, has a total content of SiO2 and Al2O3 of from 71 to 75%, has a total content Na2O+K2O of Na2O and K2O of from 12 to 20%, and has a content of CaO of less than 1% if contained. 1. A display device , comprising:a display, anda cover glass,wherein the cover glass has a thickness of at most 1 mm; [{'sub': '2', 'from 67 to 75% of SiO,'}, {'sub': 2', '3, 'from 0 to 4% of AlO,'}, {'sub': '2', 'from 7 to 15% of NaO,'}, {'sub': '2', 'from 1 to 9% of KO,'}, 'from 6 to 14% of MgO, and', {'sub': '2', 'from 0 to 1.5% of ZrO,'}], 'the cover glass comprises, by mole percentage based on the following oxides{'sub': 2', '2', '3, 'a total content of SiOand AlOin the cover glass is from 71 to 75%;'}{'sub': 2', '2', '2', '2, 'a total content NaO+KO of NaO and KO in the cover glass is from 12 to 20%; and'}a content in the cover glass of CaO, if present, is less than 1%.2. The display device according to claim 1 , wherein a SiOcontent of the cover glass is from 69 to 74 mol %.3. The display device according to claim 1 , wherein an AlOcontent of the cover glass is at least 0 mol % and less than 3 mol %.4. The display device according to claim 1 , wherein a MgO content of the cover glass is from 8 to 13 mol %.5. The display device according to claim 1 , wherein the total content NaO+KO of the cover glass is higher than 13.5%.6. The display device according to claim 1 ,{'sub': '2', 'wherein the cover glass comprises CaO, SrO, BaO, ZrO, or any combination thereof, and'}{'sub': '2', 'a total content of CaO, SrO, BaO, and ZrOis less than 1.5%.'}7. The display device according to claim 1 , wherein a content in the cover glass of BO claim 1 , if ...

ALUMINOSILICATE GLASS FOR TOUCH SCREEN

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 ...

GLASS PLATE AND PROCESS FOR ITS PRODUCTION

A glass plate made of soda lime silica glass containing at least MgO, CaO, NaO and AlOproduced by a float process or a downdraw method, wherein [MgO] is at least 4.5%, [MgO]/[CaO] is larger than 1, and Q=([MgO]/[CaO])×([CaO]+[NaO]−[AlO]) is at least 20, wherein [MgO] is the content of MgO, [CaO] is the content of CaO, [NaO] is the content of NaO, and [AlO] is the content of AlO(each being as represented by mass percentage based on oxide) and a process for the glass plate. 2. The glass plate according to claim 1 , wherein the above ratio of the content of MgO claim 1 , as represented by mass percentage based on oxide claim 1 , to the content of CaO claim 1 , as represented by mass percentage based on oxide claim 1 , ([MgO]/[CaO]) claim 1 , is larger than 1 and not larger than 30 claim 1 , and the value Q obtained by the above formula (1) is at least 20 and at most 400.3. The glass plate according to claim 1 , which comprises claim 1 , as represented by mass percentage based on oxides claim 1 ,{'sub': '2', 'SiO: from 60 to 75%,'}{'sub': 2', '3, 'AlO: more than 0%,'}{'sub': '2', 'NaO: from 10 to 20%,'}MgO: at least 4.5%, andCaO: from 1 to 10%.4. The glass plate according to claim 1 , which comprises claim 1 , as represented by mass percentage based on oxides claim 1 ,{'sub': '2', 'SiO: from 60 to 75%,'}{'sub': 2', '3, 'AlO: more than 0% and at most 4.5%,'}{'sub': '2', 'NaO: from 10 to 20%,'}MgO: from 4.5 to 15%,CaO: from 1 to 10%, and{'sub': 2', '3, 'total iron calculated as FeO: from 0 to 0.1%.'}5. The glass plate according to claim 1 , which comprises claim 1 , as represented by mass percentage based on oxides claim 1 ,{'sub': '2', 'SiO: from 60 to 75%,'}{'sub': 2', '3, 'AlO: more than 0% and at most 4.5%,'}{'sub': '2', 'NaO: from 10 to 20%,'}{'sub': '2', 'KO: from 0 to 5%,'}MgO: from 4.5 to 10%,CaO: from 1 to 10%, and{'sub': 2', '3, 'total iron calculated as FeO: from 0 to 0.1%.'}6. The glass plate according to claim 1 , which comprises claim 1 , as represented by ...

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

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

COMPOSITION FOR COLOURING GLASS AND USES THEREOF

The present invention relates to a coloring composition free of nickel oxide. In particular, the coloring composition for glass comprises manganese dioxide (MnO), chromium oxide (III) (CrO), cobalt oxide (CoO) and a glass medium. Furthermore, the present invention relates to the process for producing the coloring composition and the use thereof for the purpose of imparting a dark color (black), in particular a blue-violet-black color, to the glass. 1. A coloring composition for glass , free of nickel oxide , comprising:{'sub': '2', '35-50% by weight of MnO;'}{'sub': 2', '3, '4-10% by weight of CrO;'}{'sub': 3', '4, '0.5-1.5% by weight of CoO; and'}40-60% of a glass medium,2. The composition in accordance with claim 1 , comprising:{'sub': '2', '40-45% by weight of MnO;'}{'sub': '2', '5-8% by weight of CrO;'}{'sub': 3', '4, '0.8-1.2% by weight of CoO; and'}45-55% of a glass medium.3. The composition in accordance with claim 1 , wherein said glass medium is silica claim 1 , a silicate claim 1 , or an anhydrous silicate.4. The composition in accordance with claim 3 , wherein said at least one silicate is a sodium silicate.5. The composition in accordance with claim 1 , wherein said glass medium comprises 42-48% sodium silicate 1:3 by weight relative to the glass medium or 2-8% sodium silicate 1:2 by weight relative to the glass medium.6. The composition in accordance with claim 1 , wherein the chromium oxide is in the form of a powder claim 1 , crystals or crystal powder.7. The composition in accordance with in powder form claim 1 , or in the form of pellets claim 1 , tablets or granules.8. A process for producing the composition according to claim 1 , in the form of granules claim 1 , said process comprising the following steps:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(i) providing a composition for coloring glass according to ;'}(ii) humidifying the coloring composition;(iii) reducing the composition into granules;(iv) humidifying the colorant granules; and( ...

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

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.

GLASS COMPOSITION FOR PRODUCING HIGH STRENGTH AND HIGH MODULUS FIBERS

A glass composition including Si02 in an amount from about 70.6 to about 79.6% by weight, AIOin an amount from about 10.0 to 18.5% by weight, MgO m an amount from about 10.0 to about 19.0% by weight, CaO in an amount from about 0.1 to about 5.0% by weight, Li20 in an amount from 0.0 to about 3.0% by weight, and Na0 in an amount from 0.0 to about 3.0% by weight is provided. In exemplary embodiments, the glass composition is free or substantially free of BOand fluorine. The glass fibers have a specific modulus between about 3.40×10J/kg and 3.6×10J/kg. Glass fibers formed from the inventive composition possess exceptionally an exceptionally high modulus and a low density, which make them particularly suitable in applications that require high strength, high stiffness, and low weight, such as wind blades and aerospace structures. 1. A composition for preparing high strength glass fibers comprising:{'sub': '2', 'SiOin an amount from about 70.6 to about 79.6% by weight of the total composition;'}{'sub': 2', '3, 'AlOin an amount from about 10.0 to about 18.5% by weight of the total composition;'}MgO in an amount from about 10.0 to about 19.0% by weight of the total composition;CaO in an amount from about 0.1 to about 5.0% by weight of the total composition;{'sub': '2', 'LiO in an amount from 0.0 to about 3.0% by weight of the total composition; and'}{'sub': '2', 'NaO in an amount from 0.0 to about 3.0% by weight of the total composition.'}2. The composition of wherein{'sub': '2', 'SiOis present in an amount from about 70.6 to about 73.55% by weight of the total composition;'}{'sub': 2', '3, 'AlOis present in an amount from about 10.68 to about 18.5% by weight of the total composition;'}MgO is present in an amount from about 10.0 to about 15.62% by weight of the total composition;CaO is present in an amount from about 0.1 to about 1.7% by weight of the total composition;{'sub': '2', 'LiO is present in an amount from 0.08 to about 3.0% by weight of the total composition; and ...

Ultraviolet and Infrared Absorptive Glass

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 ...

OPTICAL GLASS

A high-refractivity low-dispersion optical glass that can be stably supplied and has excellent glass stability and that has coloring reduced, composed of in mass %, 5 to 32% of total of SiOand BO, 45 to 65% of total of LaO, GdOand YO, 0.5 to 10% of ZnO, 1 to 20% of total of TiOand NbO, and optionally other components. The optical glass has a refractive index nd of 1.89 to 2.0, an Abbe's number νd of 32 to 38 and a coloring degree λ70 of 430 nm or less. 115-. (canceled)16. An optical glass comprising , denoted by mass % ,{'sub': '2', '5 to 12% of SiO'}{'sub': 2', '3, '9 to 15% of BO,'}{'sub': 2', '3, '32 to 55% of LaO,'}{'sub': 2', '3', '2', '3', '2', '3', '2', '3, '56.32 to 65% of total of LaO, GdOand YO(comprising equal to or greater than 0.1% of GdO),'}1 to 8% of ZnO,{'sub': 2', '2', '5', '2', '2', '5, '1 to 20% of total of TiOand NbO(comprising equal to or greater than 0.1% of each of TiOand NbO),'}{'sub': '2', '0.5 to 15% of ZrO,'}{'sub': 2', '5, '0 to 12% of TaO,'}{'sub': '2', '0 to 5% of GeO,'}{'sub': 2', '2', '3', '2', '2', '3', '2', '3', '2', '3', '2', '3', '2', '3', '2', '3', '2', '3', '2', '3', '2', '3', '2', '3', '2', '3, 'wherein the mass ratio of the content of SiOto the content of BO, (SiO/BO), is from 0.3 to 1.0, and the mass ratio of the total content of GdOand YOto the total content of LaO, GdOand YO, (GdO+YO)/(LaO+GdO+YO), is from 0.05 to 0.6,'}the optical glass having a refractive index nd of 1.90 to 2.0 and an Abbe's number νd of 32 to 38 and having a coloring degree λ70 of 430 nm or less.17. The optical glass according to claim 16 , which comprises none of LiO claim 16 , NaO claim 16 , and KO.18. The optical glass according to claim 16 , which comprises claim 16 , denoted by mass % claim 16 , 0.1 to 25% of GdO.1916. The optical glass according to claim 16 , which comprises claim 16 , denoted by mass % claim 16 ,{'sub': '2', '0.1 to 15% of TiO,'}{'sub': 2', '5, '0.1 to 15% of NbO.'}20The optical glass according to claim 16 , which has a ...

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

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 ...

HEAT-ABSORBING GLASS PLATE AND PROCESS FOR ITS PRODUCTION

To provide a heat-absorbing glass plate which satisfies both low solar transmittance and high visible light transmittance, presents a green color as transmitted light and contains a small number of coloring components. The heat-absorbing glass plate of the present invention has a solar transmittance of at most 42% calculated as 4 mm thickness, has a visible light transmittance (by illuminant A, 2° visual field) of at least 70% calculated as 4 mm thickness, and provides a transmitted light having a dominant wavelength of from 492 to 520 nm, and it is made of soda lime silica glass having substantially the following composition, as represented by mass % based on oxides. SiO: 65 to 75%, AlO: more than 3% and at most 6%, MgO: at least 0% and less than 2%, CaO: 7 to 10%, total iron as calculated as FeO: 0.45 to 0.65%, and TiO: 0.2 to 0.8%, and contains substantially no member selected from the group consisting of CoO, CrO, VOand MnO, wherein the proportion of the mass of divalent FeO in the mass of total iron which is the amount of total iron as calculated as FeO, is more than 42% and at most 60%. 1. A heat-absorbing glass platewhich has a solar transmittance of at most 42% calculated as 4 mm thickness of the glass plate as defined in JIS R3106 (1998),which has a visible light transmittance (by illuminant A, 2° visual field) of at least 70% calculated as 4 mm thickness of the glass plate as defined in JIS R3106 (1998),which provides a transmitted light having a dominant wavelength of from 492 to 520 nm as defined in JIS Z8701 (1982), andwhich is made of soda lime silica glass having substantially the following composition, as represented by mass % based on oxides:{'sub': '2', 'SiO: 65 to 75%,'}{'sub': 2', '3, 'AlO: more than 3% and at most 6%,'}MgO: at least 0% and less than 2%,CaO: 7 to 10%,{'sub': 2', '3, 'total iron as calculated as FeO: 0.45 to 0.65%, and'}{'sub': '2', 'TiO: 0.2 to 0.8%,'}{'sub': 2', '3', '2', '5, 'and containing substantially no member selected from ...

Substrate for a photovoltaic cell

The subject of the invention is a substrate for photovoltaic cell comprising at least one sheet of float glass provided on a face of at least one electrode, characterized in that said glass has a chemical composition comprising the following constituents, in a weight content that varies within the limits defined below: SiO 2 60-70%  Al 2 O 3 7-11% MgO  1-5% CaO 6-10% Na 2 O 10-16%  K 2 O   0-4%.

COLOURED GLASSES

Coloured glasses are provided that include a following composition in percent by weight, based on oxide of: 4. The coloured glass according to claim 1 , comprising fluorine in a proportion of at least 1% by weight claim 1 , POin a proportion of at most 65% by weight claim 1 , and a sum proportion of RO of at least 10% by weight.5. The coloured glass according to claim 1 , comprising fluorine in a proportion of at least 1% by weight and POin a proportion of at most 65% by weight.6. The coloured glass according to claim 1 , comprising fluorine in a proportion of at least 1% by weight and a sum proportion of RO of at least 10% by weight.7. The coloured glass according to claim 1 , wherein the glass is free of one or more elements selected from the group consisting of ZnO claim 1 , ZrO claim 1 , VONbO claim 1 , FeOand LiO.8. The coloured glass according to claim 1 , wherein the glass has a degree of crosslinking of at most 50%.9. The coloured glass according to claim 1 , further comprising a sum of content of calcium oxide and copper oxide from 10 to 30% by weight.11. The filter according to claim 10 , further comprising a coating on at least one of its surfaces. This application claims benefit under 35 U.S.C. §119(a) of German Patent Application No. 10 2012 210 552.2, filed Jun. 22, 2012, the entire contents of which are incorporated herein by reference.1. Field of the InventionThe present invention relates to coloured glasses, in particular (fluoro)phosphate glasses which are coloured blue for use as filter glasses, the use of such coloured glasses as filter glasses and a process for producing the glasses.The glasses of the invention can be used as optical band-pass filters, i.e. as filters having a more or less narrow wavelength range of high transmission (“transmission range” or “passband”) surrounded by two “barrier ranges” having very low transmission. Such glasses are used as optical glass filters, for example as colour correction filters in video cameras and ...

BORON-FREE UNIVERSAL GLASS

Universal glasses are provided which have the composition, in percent by weight on an oxide basis, 65-75 of SiO, 11-18 of AlO, 5-10 of MgO, 5-10 of CaO, which are free of BO, SrO, BaO, CeOand PbO and have a hydrolytic resistance in the first class in accordance with DIN ISO 719, an acid resistance at least in the second class in accordance with DIN 12116 and an alkali resistance at least in the second class in accordance with DIN ISO 695. 2. The universal glass of claim 1 , further comprising at least one refining agent selected from the group consisting of AsO claim 1 , SbO claim 1 , SnO claim 1 , Cl claim 1 , F claim 1 , and SO claim 1 , up to a total content of 2% by weight.4. The universal glass of claim 3 , wherein claim 3 , except for unavoidable impurities claim 3 , no ZnO is present.5. The universal glass of claim 3 , wherein claim 3 , except for unavoidable impurities claim 3 , no TiOis present.6. The universal glass of claim 3 , wherein claim 3 , except for unavoidable impurities claim 3 , no FeOis present.7. The universal glass of claim 3 , wherein claim 3 , except for unavoidable impurities claim 3 , no alkali metal oxides are present.8. The universal glass of claim 3 , wherein the content of SiOis at least 68% by weight.9. The universal glass of claim 3 , wherein the content of AlOis at least 12.5% by weight.10. The universal glass of claim 3 , wherein the content of AlOis not more than 14% by weight.11. The universal glass of claim 3 , wherein the total content of MgO and CaO is at least 14% by weight.12. The universal glass of claim 3 , wherein the total content of MgO and CaO is not more than 18% by weight.13. The universal glass of claim 3 , wherein the content of MgO is 7-10% by weight.14. The universal glass of claim 3 , wherein the content of MgO is 7-9% by weight.15. The universal glass of claim 3 , wherein the content of CaO is 7-10% by weight.16. The universal glass of claim 3 , further comprising refining agents in customary amounts of up to ...

GLASS COMPOSITION SUITABLE FOR CHEMICAL STRENGTHENING AND CHEMICALLY STRENGTHENED GLASS ARTICLE

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

OPTICAL GLASS FOR MOLD PRESS FORMING

The invention provides an optical glass for press molding which can satisfy all of the following requirements: (1) it contains no environmentally undesirable components; (2) it can easily achieve a low glass transition point; (3) it has a high refractive index and high dispersion; (4) it can easily provide a glass having an excellent visible light transmittance; and (5) it has excellent resistance to devitrification during preparation of a preform. The optical glass for press molding has a refractive index nd of 1.925 or more, an Abbe's number νd of 10 to 30, and a glass composition, in % by mass, of 20 to 80% BiO, 10 to 30% BO, and 0 to 5.5% GeOand is substantially free of lead component, arsenic component, and F component. 1. (canceled)2. An optical glass for press molding , having a refractive index nd of 1.925 or more , an Abbe's number νd of 10 to 30 , and a glass composition , in % by mass , of 20 to 90% BiO , 10 to 30% BO , and 0 to 5.5% GeOand being substantially free of lead component , arsenic component , and F component , wherein the coloration λis 500 nm or less.3. The optical glass for press molding according to claim 2 , wherein a content of BiO+BOis 60 to 100% by mass.4. The optical glass for press molding according to claim 2 , containing 0 to 10% by mass ZnO.5. The optical glass for press molding according to claim 2 , containing 0 to below 3% by mass SO.6. The optical glass for press molding according to claim 2 , wherein a content of LaO+GdO+TaOis 7.5 to 30% by mass.7. The optical glass for press molding according to claim 2 , wherein BiO/BOis 5 or less in mass ratio.8. The optical glass for press molding according to claim 2 , containing 0.1 to 15% by mass TiO.9. The optical glass for press molding according to claim 2 , wherein a content of BiO+BOis 99% or more.10. The optical glass for press molding according to claim 2 , wherein a content of BiO+BO+TiOis 99% or more. This invention relates to optical glasses for press molding. Specifically, it ...

ULTRA-THIN STRENGTHENED GLASSES

Glass compositions having properties that are optimized for forming ultra-thin (<0.4 mm) articles and for applications requiring ultra-thin glass. These properties include both forming-related properties such as the coefficients of thermal expansion (CTE) of both the liquid and glassy state of the glass, liquidus viscosity, and those properties affecting the mechanical performance of the glass (compressive stress, depth of layer, elastic or Young's modulus). 1. A glass , the glass comprising at least about 65 mol % SiOand at least about 6 mol % NaO , the glass having a thickness of less than 400 μm and a difference between a first coefficient of thermal expansion and a second coefficient of thermal expansion ΔCTE of less than 107×10° C. , wherein the first coefficient of thermal expansion is the coefficient of thermal expansion of the glass in its liquid state and the second coefficient of thermal expansion is the coefficient of thermal expansion of the glass in its glassy state at room temperature.2. The glass according to claim 1 , wherein the glass is ion exchanged and has a layer under compressive stress extending from a surface to a depth of layer claim 1 , wherein the compressive stress is at least about 500 MPa and the depth of layer is at least about 5 μm.3. The glass according to claim 1 , wherein the glass has a liquidus viscosity of at least about 100 kP.4. The glass according to claim 1 , wherein the first coefficient of thermal expansion is less than about 195×10° C.5. The glass according to claim 1 , wherein the glass further comprises AlOand at least one of LiO claim 1 , KO claim 1 , MgO claim 1 , CaO claim 1 , ZnO claim 1 , and wherein NaO+KO+LiO−AlO≧0 mol %.6. The glass according to claim 1 , wherein the glass comprises: from about 65 mol % to about 75 mol % SiO; from about 7 mol % to about 16 mol % AlO; from 0 mol % to about 10 mol % LiO; from about 6 mol % to about 16 mol % NaO; from 0 mol % to about 2.5 mol % KO; from 0 mol % to about 8.5 mol % ...

BLACK SYNTHETIC QUARTZ GLASS WITH TRANSPARENT LAYER AND METHOD FOR PRODUCING THE SAME

Provided in a facile manner are a black synthetic quartz glass with a transparent layer, which meets demands for various shapes, has a black portion satisfying required light shield property and emissivity in an infrared region, keeps a purity equivalent to that of a synthetic quartz glass in terms of metal impurities, has a high-temperature viscosity characteristic comparable to that of a natural quartz glass, can be subjected to high-temperature processing such as welding, does not release carbon from its surface, and is free of bubbles and foreign matter in the transparent layer and the black quartz glass, and at an interface between the transparent layer and the black quartz glass, and a production method therefor. 1. A method for producing a black synthetic quartz glass with a transparent layer comprising a black quartz glass portion and a transparent layer quartz glass portion , the method comprising:a black quartz glass preparing step of preparing a black quartz glass portion by subjecting a silica porous glass body containing a hydroxy group to a gas-phase reaction in an atmosphere of a volatile organosilicon compound at a temperature of 100° C. or more and 1,200° C. or less, and after the reaction, firing the resultant at a temperature of 1,200° C. or more and 2,000° C. or less; anda transparent layer preparing step of coating the black quartz glass portion with a transparent layer material, followed by heating treatment,wherein:the transparent layer preparing step comprises coating the black quartz glass portion with silica slurry, performing heating treatment in an oxidizing atmosphere in a temperature region of 300° C. to 1,200° C., and keeping the resultant within a temperature range of 1,300° C. to 2,000° C. and a pressure range of 0.001 to 1.0 MPa to perform sintering; andthe silica slurry uses silica particles each having an average particle diameter of 0.1 μm to 100 μm and has a concentration of silica of 50 to 95% and a concentration of a cellulose ...

GLASS PLATE FOR THIN FILM SOLAR CELL

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 ...

GLASS FOR CHEMICAL STRENGTHENING

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 ...

GLASS MATERIAL WITH LOW DIELECTRIC CONSTANT ATTRIBUTABLE TO HIGH WEIGHT PERCENTAGE OF BORON TRIOXIDE

A glass material with a low dielectric constant attributable to a high weight percentage of boron trioxide includes at least one component for forming the main constructure of the glass material, a fluxing component, a reinforcing component, and a modifier; wherein the at least one component for forming the main constructure of the glass material includes silicon dioxide (SiO); the fluxing component includes boron trioxide (BO); the reinforcing component includes aluminum oxide (AlO); and the modifier includes calcium oxide (CaO). The glass material is characterized in that it has a boron trioxide (BO) content by weight of 30%˜40%, which is higher than those in the prior art; a calcium oxide (CaO) content by weight of 1%˜6%, which is lower than those in the prior art; and consequently a lower dielectric constant and a lower dissipation factor of the glass material than those in the prior art can be obtained. 1. A glass material with a low dielectric constant attributable to a high weight percentage of boron trioxide , comprising:{'sub': 2', '2, 'at least one component for forming a main constructure of the glass material, wherein the at least one component for forming the main constructure of the glass material comprises silicon dioxide (SiO), and the silicon dioxide (SiO) makes up 45%˜55% by weight of the glass material;'}{'sub': 2', '3', '2', '3, 'a fluxing component comprising boron trioxide (BO), wherein the boron trioxide (BO) makes up 30%˜40% by weight of the glass material and is used to reduce viscosity of the glass material when the glass material is melted;'}{'sub': 2', '3', '2', '3, 'a reinforcing component comprising aluminum oxide (AlO), wherein the aluminum oxide (AlO) makes up 10%˜14% by weight of the glass material and is used to increase structural strength of the glass material; and'}a modifier comprising calcium oxide (CaO), wherein the calcium oxide (CaO) makes up 1%˜6% by weight of the glass material and is used to increase water resistance of ...

Glass sheet with a high level of infrared radiation transmission

The invention relates to a glass sheet with a high level of infrared radiation transmission, that can be used especially in a tactile tablet, panel or screen. More precisely, the invention relates to a glass sheet having a composition comprising, as a content expressed in total weight percentages of glass: SiO2 55-78%; AI2O3 0-18%; B2O3 0-18%; Na2O 5-20%; CaO 0-15%; MgO 0-10%; K2O 0-10%; BaO 0-5%; total iron (expressed in the form of Fe2O3) 0.002-0.06%; and a chromium content (expressed in the form of Cr2O3) of between 0.002 and 0.06%.

METHOD OF MAKING A RED-GLASS VESSEL

In order to provide a method which can produce red glass vessels and which is attended by low cost in respect of the raw materials/starting materials and also in respect of control of process parameters, an appropriate method for producing red glass vessels is proposed in which a colourless molten glass composition containing at most 3% by mass of tin oxide and at most 3% by mass of copper oxide is produced, where the resultant colourless molten glass composition is refined under neutral conditions with sodium sulphate and/or calcium sulphate and with a carbon-containing reducing agent with a molar carbon/sulphate ratio of from 0.5 to 5, where glass vessels are moulded from said refined glass composition, and where the glass vessels are cooled to a temperature of below 520 degrees C. to 580 degrees C. 1. A method of making a red-glass container , the method comprising the steps of:making a colorless molten glass composition containing at most 3% by mass of tin oxide and at most 3% by mass of copper oxide;{'b': 0', '5', '5, 'refining the colorless molten glass composition under neutral conditions with sodium sulphate or calcium sulphate and with a carbon-containing reducing agent with a molar carbon/sulphate ratio of from . to ;'}molding a glass container from the glass composition refined under neutral conditions; andcooling the glass container to a temperature of below 520° C. to 580° C.2. The method according to claim 1 , wherein activated carbon is used as carbon-containing reducing agent.3. The method according to claim 1 , wherein the colorless molten glass composition is made with a content of tin oxide of from 0.2 to 3% by mass and with a content of copper oxide of from 0.06 to 3% by mass.4. The method according to claim 3 , wherein the colorless molten glass composition is made with a content of tin oxide of from 0.5 to 1.5% by mass and with a content of copper oxide of from 0.1 to 0.35% by mass.5052. The method according to claim 1 , wherein the colorless ...

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

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

High Alumina Low Soda Glass Compositions

A glass composition includes a base glass portion comprising: 65-75 wt % SiO; 5-15 wt % CaO; 0-5 wt % MgO; 0-5 wt % KO; 10-14 wt % NaO; and 1-5 wt % AlO; wherein the glass composition has a ratio of NaO to AlOis in the range of 9.5-12.5 wt %/wt %. 1. A glass composition comprising a base glass portion comprising:{'sub': '2', '65-75 wt % SiO;'}5-15 wt % CaO;0-5 wt % MgO;{'sub': '2', '0-5 wt % KO;'}{'sub': '2', '10-14 wt % NaO; and'}{'sub': 2', '3, '1-5 wt % AlO;'}{'sub': 2', '2', '3, 'wherein the glass composition has a ratio of NaO to AlOis in the range of 9.5-12.5 wt %/wt %.'}2. The glass composition of claim 1 , wherein the base glass portion has a ratio of CaO to MgO in the range of 1.5-2.2 wt %/wt %.3. The glass composition of claim 1 , wherein the base glass portion comprises 0.1-0.5 wt % KO.4. The glass composition of claim 1 , wherein the base glass portion comprises:{'sub': '2', '68-74 wt % SiO;'}{'sub': '2', '13-13.5 wt % NaO;'}{'sub': 2', '3, '1-1.4 wt % AlO;'}8.1-8.6 wt % CaO; and4.5-5 wt % MgO.5. The glass composition of claim 1 , wherein the total iron in the glass composition is in the range of 0.01 to 0.30 wt %.6. The glass composition of claim 1 , further comprising a colorant portion claim 1 , the colorant portion comprising:CoO in an amount ranging from 30 to 120 ppm; orSe in an amount no greater than 7.5 ppm.7. The glass composition of claim 1 , wherein the glass composition claim 1 , when formed as a glass sheet claim 1 , has a color described by the following chromaticity coordinates: an a* ranging from 4 to +4 and a b* ranging from 0 to 20.8. The glass composition of claim 1 , wherein the glass composition claim 1 , when formed as a glass sheet claim 1 , has a visible light transmittance of no greater than 80%.9. The glass composition of claim 1 , wherein the total iron in the glass composition is in the range of 0.2 to 0.8 wt %.10. The glass composition of claim 1 , wherein the glass composition has a redox ratio in the range of 0.4-0.6.11. ...

CHEMICALLY STRENGTHENED GLASS

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

GLASS-BASED ARTICLES WITH IMPROVED FRACTURE RESISTANCE

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

COLORED GLASS PLATE AND METHOD FOR ITS PRODUCTION

To provide a colored glass plate which, despite the content of expensive cerium controlled to be low, simultaneously satisfies low solar transmittance, high visible light transmittance and low UV transmittance, while transmitted light has a green color tone. The colored glass plate comprises, as represented by mass percentage based on oxides, SiO: from 65 to 75%, AlO: from 0 to 6%, MgO: from 0 to 6%, CaO: from 5 to 15%, total iron calculated as FeO: from 0.3 to 1.2%, total titanium calculated as TiO: from 0.2 to 1.1%, total vanadium calculated as VO: from 0.02 to 0.3%, and total cerium calculated as CeO: from 0.01 to 0.5%, and contains substantially no cobalt, chromium or manganese. 2. The colored glass plate according to claim 1 , which further contains claim 1 , as represented by mass percentage based on oxide claim 1 , from 5 to 18% of NaO.3. The colored glass plate according to claim 1 , which hasa solar transmittance as stipulated in JIS R3106 (1998) of at most 55% as a value calculated in a thickness of 4 mm,a visible light transmittance (illuminant A, 2 degrees field of vision) as stipulated in JIS R3106 (1998) of at least 70% as a value calculated in a thickness of 4 mm,an UV transmittance as stipulated in ISO-9050 of at most 12% as a value calculated in a thickness of 4 mm, anda dominant wavelength of transmitted light as stipulated in JIS Z8701 (1982) of from 540 to 570 nm.5. The method for producing a colored glass plate according to claim 4 , wherein the glass plate further contains claim 4 , as its compositional component and as represented by mass percentage based on oxide claim 4 , from 5 to 18% of NaO.6. The method for producing a colored glass plate according to claim 4 , wherein the colored glass plate hasa solar transmittance as stipulated in JIS R3106 (1998) of at most 55% as a value calculated in a thickness of 4 mm,a visible light transmittance (illuminant A, 2 degrees field of vision) as stipulated in JIS R3106 (1998) of at least 70% as a ...

COLORED GLASS

A colored glass, a surface of which is roughened in whole or in part. In the colored glass, an average value of gloss values measured at 9 points in the surface thereof at an incident angle of 60° in accordance with JIS 28741 (1991) is 30 or less, a ratio of a difference between a maximum gloss value and a minimum gloss value to the maximum gloss value is 20% or less, and a minimum value of visible-light transmittance at a thickness of 0.8 mm is 70% or less. 1. A colored glass , wherein a surface of the colored glass is roughened in whole or in part , and an average value of gloss values measured at 9 points in the surface thereof at an incident angle of 60° in accordance with JIS Z8741 (1991) is 30 or less , a ratio of a difference between a maximum gloss value and a minimum gloss value to the maximum gloss value is 20% or less , and a minimum value of visible-light transmittance at a thickness of 0.8 mm is 70% or less.2. The colored glass according to claim 1 , wherein a surface roughness Ra measured in accordance with JIS B0633 (2001) is from 0.2 to 1 μm.3. The colored glass according to claim 1 , wherein a maximum value of an absorption coefficient to a light having a wavelength of 380 to 780 nm is 0.1 mmor more.4. The colored glass according to claim 1 , which comprises a compressive stress layer in the surface thereof.5. The colored glass according to claim 1 , which comprises at least one component selected from the group consisting of oxides of Co claim 1 , Mn claim 1 , Fe claim 1 , Ni claim 1 , Cu claim 1 , Cr claim 1 , V claim 1 , Bi claim 1 , Se claim 1 , Ti claim 1 , Ce claim 1 , Er and Nd claim 1 , as a coloring component.6. The colored glass according to claim 1 , which is configured to enclose an electronic device.7. The colored glass according to claim 6 , wherein the electronic device is a portable electronic device.8. A portable electronic device claim 1 , comprising the colored glass according to claim 1 , wherein the colored glass is configured ...

HIGH CTE OPAL GLASS COMPOSITIONS AND GLASS ARTICLES COMPRISING THE SAME

Opal glass compositions and glass articles comprising the same are disclosed. In one embodiment, a glass composition includes 55 mol. % to 70 mol. % SiOand 9 mol. % to 15 mol. % AlOas glass network formers. The glass composition also includes 10 mol. % to 15 mol. % alkali oxide MO, wherein M is at least one of Na and K. The glass composition also includes 2 mol. % to 8 mol. % divalent oxide RO, wherein R is at least one of Zn, Ca, and Mg. As an opalizing agent, the glass composition may also include 8.5 mol. % to 16 mol. % F. The glass composition may also include 0 mol. % to 0.3 mol. % SnOas a fining agent and from about 0 mol. % to about 6 mol. % of colorant. The glass composition is free from As and compounds containing As. 1. A glass composition comprising:{'sub': '2', 'from about 55 mol. % to about 70 mol. % SiO;'}{'sub': 2', '3, 'from about 9 mol. % to about 15 mol. % AlO;'}{'sub': '2', 'from about 10 mol. % to about 15 mol. % alkali oxide MO, wherein M is at least one of Na and K;'}from about 2 mol. % to about 8 mol. % divalent oxide RO, wherein R is at least one of Zn, Ca, and Mg;{'sup': '−', 'from about 8.5 mol. % to about 16 mol. % F;'}{'sub': '2', 'from about 0 mol. % to about 0.3 mol. % SnO; and'}from about 0 mol. % to about 6 mol. % of colorant, wherein the glass composition is free from As and compounds containing As and spontaneously opalizes during formation or with a post-formation heat treatment.2. The glass composition of claim 1 , wherein the glass composition comprises:{'sub': '2', 'from about 58 mol. % to about 64 mol. % SiO;'}{'sub': 2', '3, 'from about 10 mol. % to about 12 mol. % AlO;'}{'sub': '2', 'from about 11 mol. % to about 13 mol. % MO;'}less than or equal to about 5.5 mol. % RO; and{'sup': '−', 'greater than or equal to about 12.5 mol. F.'}3. The glass composition of claim 1 , wherein a concentration of the colorant is less than or equal to 2 mol. %.4. The glass composition of claim 1 , wherein the colorant is selected from the group ...

CRYSTALLIZED GLASS SUBSTRATE

Provided is a crystallized glass substrate including a surface with a compressive stress layer, in which a gradient A of a surface compressive stress from an outermost surface to a depth of 6 μm in the compressive stress layer is 50.0 to 110.0 MPa/μm, a gradient B of a surface compressive stress from a depth of (a stress depth DOLzero—10 μm) to the stress depth DOLzero is 2.5 to 15.0 MPa/μm, where the stress depth DOLzero is a depth of the compressive stress layer at a surface compressive stress of 0 MPa, and a hardness of the outermost surface at an indentation depth of 20 nm is 7.50 to 9.50 GPa. 1. A crystallized glass substrate including a surface with a compressive stress layer , wherein a gradient A of a surface compressive stress from an outermost surface to a depth of 6 μm in the compressive stress layer is 50.0 to 110.0 MPa/μm ,a gradient B of a surface compressive stress from a depth of (a stress depth DOLzero—10 μm) to the stress depth DOLzero is 2.5 to 15.0 MPa/μm,where the stress depth DOLzero is a depth of the compressive stress layer at a surface compressive stress of 0 MPa, anda hardness of the outermost surface at an indentation depth of 20 nm is 7.50 to 9.50 GPa.2. A crystallized glass substrate including a surface with a compressive stress layer ,wherein a gradient A of a surface compressive stress from an outermost surface to a depth of 6 μm in the compressive stress layer is 50.0 to 110.0 MPa/μm,a gradient B of a surface compressive stress from a depth of (a stress depth DOLzero—10 μm) to the stress depth DOLzero is 2.5 to 15.0 MPa/μm,where the stress depth DOLzero is a depth of the compressive stress layer at a surface compressive stress of 0 MPa, anda hardness of the outermost surface at an indentation depth of 100 nm is 8.00 to 9.50 GPa.3. A crystallized glass substrate including a surface with a compressive stress layer ,wherein a gradient A of a surface compressive stress from an outermost surface to a depth of 6 μm in the compressive stress ...

GLASS PLATE AND PROCESS FOR PRODUCING THE SAME

A glass plate has a dielectric dissipation factor at 10 GHz of tan δA and a glass transition temperature of Tg° C. The glass plate satisfies (tan δ100−tan δA)≥0.0004, where tan δ100 is a dielectric dissipation factor of the glass plate at 10 GHz after having been heated to (Tg+50)° C. and then cooled to (Tg−150)° C. at 100° C./min. 1. A glass plate having a dielectric dissipation factor at 10 GHz of tan δA and a glass transition temperature of Tg° C. ,wherein the glass plate satisfies (tan δ100−tan δA)≥0.0004, where tan δ100 is a dielectric dissipation factor of the glass plate at 10 GHz after having been heated to (Tg+50)° C. and then cooled to (Tg−150)° C. at 100° C./min.2. The glass plate according to claim 1 , having a relative permittivity at 10 GHz of εrA claim 1 ,wherein the glass plate satisfies 0.95≤(εr100/εrA)≤1.05, where εr100 is a relative permittivity of the glass plate at 10 GHz after having been heated to (Tg+50)° C. and then cooled to (Tg−150)° C. at 100° C./min.3. The glass plate according to claim 1 , comprising a principal surface with an area of 350 cmor larger.4. The glass plate according to claim 1 , having the dielectric dissipation factor at 10 GHz of 0.009 or less.5. The glass plate according to claim 1 , having a relative permittivity at 10 GHz of 6.8 or less.6. The glass plate according to claim 1 , wherein any two portions separated from each other by 40 mm or more have a difference in dielectric dissipation factor at 10 GHz of 0.0005 or less.7. The glass plate according to claim 1 , wherein any two portions separated from each other by 40 mm or more have a difference in relative permittivity at 10 GHz of 0.05 or less.8. The glass plate according to claim 1 , comprising from 30 to 85% of SiOas represented by mol % based on oxides.9. The glass plate according to claim 1 , comprising claim 1 , as represented by mol % based on oxides claim 1 ,{'sub': '2', 'SiO: from 57 to 70%,'}{'sub': 2', '3, 'AlO: from 5 to 15%,'}{'sub': 2', '3, 'BO: from ...

GLASS FOR CHEMICAL STRENGTHENING

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

Soda-Lime Glass from 100% Recycled Glass-Forming Materials

A glass food and beverage container constructed of 100 wt. % recycled glass-forming materials selected from the group consisting of post-industrial cullet, post-consumer cullet, and a combination thereof. 1. A glass food and beverage container constructed of 100 wt. % recycled glass-forming materials selected from the group consisting of post-industrial cullet , post-consumer cullet , and a combination thereof.2. The container set forth in wherein the glass-forming materials include substantially no virgin raw materials.3. A glass container comprising:{'sub': 2', '2, 'a soda-lime glass wall that provides the container with a body, a circumferentially-closed base at one end of the body, and a mouth at another end of the body opposite the circumferentially-closed base, the soda-lime glass wall having a glass composition that includes a main oxide content of about 60-75 wt. % SiO, about 10-18 wt. % NaO, and about 5-15 wt. % CaO, and wherein the main oxide content of the glass composition of the soda-lime glass wall is derived only from cullet.'}4. The glass container set forth in claim 3 , wherein the main oxide content of the glass composition of the soda-lime glass wall is derived from pre-sorted cullet that comprises 40-50 wt. % green glass claim 3 , 40-50 wt. % flint glass claim 3 , 5-15 wt. % amber glass claim 3 , 0-2 wt. % blue glass and other colored glass claim 3 , and less than 250 grams/ton of opal glass 40-50 wt. % green glass.5. A glass container comprising:{'sub': 2', '2, 'a soda-lime glass wall that provides the container with a body, a circumferentially-closed base at one end of the body, and a mouth at another end of the body opposite the circumferentially-closed base, the soda-lime glass wall having a glass composition that includes a main oxide content of about 60-75 wt. % SiO, about 10-18 wt. % NaO, and about 5-15 wt. % CaO, and wherein the main oxide content of the glass composition of the soda-lime glass wall is derived only from cullet.'}6. The ...

GLASS-CERAMIC WORKTOP

The present invention relates to an advantageously interactive item of furniture and/or appliance comprising: 1. An item of furniture and/or appliance , advantageously interactive , comprising:{'sup': '2', 'sub': 'L', 'at least one worktop formed from at least one substrate made of a monolithic glazing material and of area larger than 0.7 m, said substrate having a lightness L* lower than 10, a haze lower than 30% and a light transmission Tlower than 10%;'}at least one heating element;at least one light source, in particular intended to light up one or more zones or one or more elements or displays of the substrate, this source in particular being located under the substrate and being hidden thereby when this source is turned off; andat least one interface for communicating with at least one element of the worktop such as the one or more light sources and/or the one or more heating elements and/or if needs be wirelessly with at least one external element.2. The item of furniture and/or appliance as claimed in claim 1 , characterized in that the area of the substrate made of a glazing material is larger than 0.9 m claim 1 , especially larger than 1 mand in particular at least 2 m claim 1 , the thickness of said substrate being at least 2 mm claim 1 , especially at least 2.5 mm claim 1 , and in particular about 3 to 30 mm claim 1 , said thickness advantageously being smaller than 15 mm claim 1 , in particular about 3 to 15 mm and especially from 3 to 10 mm.3. The item of furniture and/or appliance of claim 1 , characterized in that the substrate has a flatness lower than 0.1% of the diagonal of the substrate claim 1 , and preferably lower than 3 mm claim 1 , especially lower than 2 mm and in particular lower than 1 mm or even of about zero.4. The item of furniture and/or appliance of claim 1 , characterized in that the substrate is made of tempered glass or glass-ceramic and preferably is made of glass-ceramic.5. The item of furniture and/or appliance of claim 1 , ...

GLASS SHEET HAVING HIGH INFRARED RADIATION TRANSMISSION

The invention relates to a glass sheet having high infrared radiation transmission, intended, in particular, for use in a touch tablet, panel or screen. More specifically, the invention relates to a glass sheet having a composition comprising, concentrations expressed as a percentage of the total weight of the glass: 55-78% SiO2; 0-18% Al2O3; 0-18% B2O3; 5-20% Na2O; 0-15% CaO; 0-10% MgO; 0-10% K2O; 0-5% BaO; 0.002-0.06% total iron (expressed as Fe2O3), and selenium (expressed as Se) varying between 0.001 and 1%.

GLASS SHEET HAVING HIGH INFRARED RADIATION TRANSMISSION

The invention relates to a glass sheet having high infrared radiation transmission, intended, in particular, for use in a touch tablet, panel or screen. More specifically, the invention relates to a glass sheet having a composition comprising, concentrations expressed as a percentage of the total weight of the glass: 55-78% SiO2; 0-18% Al2O3; 0-18% B2O3; 5-20% Na2O; 0-15% CaO; 0-10% MgO; 0-10% K2O; 0-5% BaO; 0.002-0.06% total iron (expressed as Fe2O3), and cobalt (expressed as CoO) varying between 0.001 and 1%.

ULTRAVIOLET-SHIELDING GLASS SHEET AND VEHICLE WINDOW PANE USING THE GLASS SHEET

The present invention provides a glass sheet having a good property of blocking transmission of ultraviolet light, having a low to moderate visible transmittance, being relatively thin, being capable of substantially blocking transmission of solar ultraviolet light, and also having a good solar shielding property. The glass sheet of the present invention has a thickness of 1 to 5 mm, a Tuv 380 of 1.5% or less, a Tuv 400 of 2.5% or less, a visible transmittance (YA) of 5 to 40%, and a solar transmittance (TG) of 5 to 45%, and is formed from a glass composition, wherein the glass composition includes: 1.0 to 5.0 wt % T-FeO; 1.0 to 5.0 wt % TiO; and 50 to 600 wt. ppm CoO as coloring components in addition to predetermined base composition, a FeO ratio is 5 to 40%, and the sum of T-FeOmultiplied by 2 and TiOis 7.0% or more. 1. An ultraviolet-shielding glass sheet , having:a thickness of 1 to 5 mm;an ultraviolet transmittance (Tuv 380) as determined according to ISO 9050:1990 of 1.5% or less,an ultraviolet transmittance (Tuv 400) as determined according to ISO 13837:2008 convention A of 2.5% or less,a visible transmittance (YA) as measured using CIE standard illuminant A according to JIS R 3106:1998 of 5 to 40%, anda solar transmittance (TG) as determined according to JIS R 3106:1998 of 5 to 45%,the ultraviolet-shielding glass sheet comprising a glass composition, whereinthe glass composition comprises base composition comprising:{'sub': '2', '65 to 85 wt % SiO;'}{'sub': 2', '3, '0 to 5 wt % BO;'}{'sub': 2', '3, '0 to 5 wt % AlO;'}0 to 20 wt % MgO;0 to 20 wt % CaO;{'sub': '2', '10 to 20 wt % NaO;'}{'sub': '2', '0 to 5 wt % KO; and'}{'sub': '3', '0 to 0.5 wt % SO,'}the glass composition comprises, as coloring components:{'sub': 2', '3', '2', '3, '1.0 to 5.0 wt % T-FeOrepresenting total iron oxide calculated as FeO;'}{'sub': '2', '1.0 to 5.0 wt % TiO; and'}50 to 600 wt. ppm cobalt oxide calculated as CoO,{'sub': 2', '3', '2', '3, 'the glass composition has a FeO ratio of 5 ...

COVER GLASS FOR SOLAR CELL, SOLAR CELL MODULE PROVIDED WITH COVER GLASS FOR SOLAR CELL, AND TRANSPARENT PROTECTIVE FILM

A provided cover glass for a solar cell panel has excellent transparency, and minimal incidence so-called “glass surface turbidity” due to reactions with components contained in a glass substrate. The cover glass for the solar cell panel comprises: the glass substrate including a surface; and a transparent protective film containing zinc telluride for coating the surface. Particularly, in the cover glass for the solar cell panel, the transparent protective film is preferably formed by bonding the zinc telluride with silica binders. Such a transparent protective film has excellent transparency, and reactions of the contained zinc telluride inhibit the surface of the glass substrate, which is a base of the solar cell, from becoming turbid. 1. A cover glass for a solar cell , the cover glass comprising:a glass substrate including a surface; anda transparent protective film containing zinc telluride for coating the surface, the transparent protective film is formed by coating a coating liquid containing zinc telluride on a surface of a glass substrate; and', 'a pH of the coating liquid is not less than nine., 'wherein2. The cover glass as defined in claim 1 , wherein said transparent protective film is formed by bonding the zinc telluride with silica binders.3. The cover glass as defined in claim 1 , wherein said transparent protective film contains titanium oxide.4. The cover glass as defined in claim 1 , wherein said transparent protective film has thickness of 20-1200 nanometers.5. The cover glass as defined in claim 1 , wherein said glass substrate contains elements belonging to at least one of alkali metal and alkaline earth metal.6. A solar cell module claim 1 , including the cover glass as defined in .7. A transparent protective film containing zinc telluride claim 1 ,wherein:the transparent protective film is formed by coating a coating liquid containing zinc telluride on a surface of a glass substrate; anda pH of the coating liquid is not less than nine.8. The ...

GLASS SHEET HAVING HIGH INFRARED RADIATION TRANSMISSION

The invention relates to a glass sheet having high infrared radiation transmission, intended, in particular, for use in a touch tablet, panel or screen. More specifically, the invention relates to a glass sheet having a composition comprising, concentrations expressed as a percentage of the total weight of the glass: 55-78% SiO; 0-18% AlO; 0-18% BO; 5-20% NaO; 0-15% CaO; 0-10% MgO; 0-10% KO; 0-5% BaO; 0.002-0.06% total iron (expressed as Fe2O3), said composition also comprising at least one noble metal M selected from among silver, gold, iridium, palladium, platinum and rhodium at a concentration (expressed as M) varying between 0.001 and 1 wt.-% in relation to the total weight of the glass. 2. The glass sheet of claim 1 , wherein the composition comprises at least one noble metal M selected from the group consisting of silver claim 1 , gold claim 1 , iridium claim 1 , palladium claim 1 , platinum and rhodium in an amount (expressed in M form) ranging from 0.005 to 0.5% by weight relative to the total weight of the glass.3. The glass sheet of claim 1 , wherein the composition comprises at least one noble metal M selected from the group consisting of silver claim 1 , gold claim 1 , iridium claim 1 , palladium claim 1 , platinum and rhodium in an amount (expressed in M form) ranging from 0.001 to 0.1% by weight relative to the total weight of the glass.4. The glass sheet of claim 3 , wherein the composition comprises at least one noble metal M selected from the group consisting of silver claim 3 , gold claim 3 , iridium claim 3 , palladium claim 3 , platinum and rhodium in an amount (expressed in M form) ranging from 0.002 to 0.05% by weight relative to the total weight of the glass.5. The glass sheet of claim 1 , wherein the noble metal is platinum or rhodium.6. The glass sheet of claim 5 , wherein the noble metal is platinum.7. The glass sheet of claim 5 , wherein the noble metal is rhodium.8. The glass sheet of claim 1 , wherein the composition comprises a total ...

TEMPERED GLASS PLATE

There is provided a tempered glass plate, wherein a thickness of the tempered glass plate is less than or equal to 2.7 mm, wherein on a surface of the tempered glass plate, a plurality of stress marks are formed, wherein a distance between closest stress marks of the plurality of stress marks is less than or equal to 20 mm, wherein the surface of the tempered glass plate includes a first virtual circle that is formed by connecting points that are separated from a center of one of the plurality of stress marks by 2.5 mm, wherein the tempered glass plate includes a non elastic-wave region that is not affected by an elastic-wave generated during fracturing, and wherein, in the non elastic-wave region, an average number of cracks that exist in the first virtual circle is greater than or equal to 3.4. 1. A tempered glass plate that is tempered by cooling medium jetted from a plurality of nozzles ,wherein a thickness of the tempered glass plate is less than or equal to 2.7 mm,wherein on a surface of the tempered glass plate, a plurality of stress marks are formed by the cooling medium jetted from the plurality of nozzles,wherein a distance between closest stress marks of the plurality of stress marks is less than or equal to 20 mm,wherein the surface of the tempered glass plate includes a first virtual circle that is formed by connecting points that are separated from a center of one of the plurality of stress marks by 2.5 mm,wherein the tempered glass plate includes a non elastic-wave region that is not affected by an elastic-wave that is generated during fracturing, andwherein, during the fracturing, in the non elastic-wave region, an average number of cracks that exist in the first virtual circle is greater than or equal to 3.4.2. The tempered glass plate according to claim 1 , wherein claim 1 , during the fracturing claim 1 , in the non elastic-wave region claim 1 , the average number of the cracks that exist in the first virtual circle is greater than or equal to 4.3 ...

Ion exchangeable glass with high crack initiation threshold

Alkali aluminosilicate glasses that are resistant to damage due to sharp impact and capable of fast ion exchange are provided. The glasses comprise at least 4 mol % P 2 O 5 and, when ion exchanged, have a Vickers indentation crack initiation load of at least about 7 kgf.

ION EXCHANGEABLE GLASS, GLASS CERAMICS AND METHODS FOR MAKING THE SAME

Glass-ceramics and precursor glasses that are crystallizable to glass-ceramics are disclosed. The glass-ceramics of one or more embodiments include rutile, anatase, armalcolite or a combination thereof as the predominant crystalline phase. Such glasses and glass-ceramicsmay include compositions of, in mole %: SiOin the range from about 45 to about 75; AlOin the range from about 4 to about 25; POin the range from about 0 to about 10; MgO in the range from about 0 to about 8; RO in the range from about 0 to about 33; ZnO in the range from about 0 to about 8; ZrOin the range from about 0 to about 4; BOin the range from about 0 to about 12, and one or more nucleating agents in the range from about 0.5 to about 12. In some glass-ceramic articles, the total crystalline phase includes up to 20% by weight of the glass-ceramic article. 1. A glass-ceramic article comprising: [{'sub': '2', 'SiOin the range from about 45 to about 75;'}, {'sub': 2', '3, 'AlOin the range from about 4 to about 25;'}, {'sub': 2', '5, 'POin the range from about 0 to about 10;'}, 'MgO in the range from about 0 to about 8;', {'sub': '2', 'RO in the range from about 0 to about 33;'}, 'ZnO in the range from about 0 to about 8;', {'sub': '2', 'ZrOin the range from about 0 to about 4;'}, {'sub': '2', 'TiOin the range from about 0.5 to about 12; and'}, {'sub': 2', '3, 'BOin the range from about 0 to about 12,'}, {'sub': 2', '2', '2', '2, 'wherein RO comprises one or more of NaO, LiO and KO.'}], 'a predominant crystalline phase comprising anatase, rutile, or a combination thereof; and a composition, in mol %, comprising2. The glass-ceramic article of claim 1 , wherein (RO—AlO) is in the range from about −4 to about 4.3. The glass-ceramic article of claim 1 , wherein the composition comprises claim 1 , in mol % claim 1 , LiO in the range from about 0 to about 12;{'sub': '2', 'NaO in the range from about 4 to about 20; and'}{'sub': '2', 'KO in the range from about 0 to about 2.'}4. The glass-ceramic article ...

METHOD AND COMPOSITION FOR SEQUESTRATION OF ARSENIC

A method for sequestrating arsenic oxides, comprising forming an insoluble and stable glass incorporating a fully oxidized form of arsenic generated by oxidation of an initial lower oxide of arsenic and stabilization by calcium salt formation. The glass composition for sequestration of arsenic comprises from 50 to 75% silica; from 0.5 to 3% AlO; from 1 to 15% MnO; from 5 to 15% CaO; from 1 to 20% AsOand from 8 to 14% NaO, less than four percent of iron oxides, magnesium oxide and other oxides. 1. A method for sequestrating arsenic oxides , comprising forming an insoluble and stable glass incorporating a fully oxidized form of arsenic generated by oxidation of an initial lower oxide of arsenic and stabilization by calcium salt formation.2. The method of claim 1 , wherein the initial lower oxide of arsenic is arsenious oxide claim 1 , and the fully oxidized form of arsenic is arsenic oxide.3. The method of claim 1 , wherein said oxidation is done with manganese dioxide.4. The method of claim 1 , wherein said oxidation is done with manganese dioxide claim 1 , in a water slurry and at a temperature in a range between 50° C. and 100° C.5. The method of claim 1 , wherein said oxidation uses pyrolusite.6. The method of claim 1 , where said stabilization comprises combination of arsenic with at least one of: calcium oxide and calcium hydroxide.7. The method of claim 1 , comprising combining one of: i) glass-forming elements; and ii) recycled glass.8. The method of claim 1 , comprising combining glass-forming elements selected in the group consisting of silica claim 1 , sodium oxide claim 1 , calcium oxide claim 1 , alumina claim 1 , feldspar claim 1 , sodium carbonate and magnesium oxide.9. A method for sequestrating arsenic oxides claim 1 , comprising forming an insoluble and stable glass having a composition by weight of from 50 to 75% silica; from 0.5 to 3% alumina; from 1 to 15% manganese oxide; from 5 to 15% calcium oxide; from 1 to 20% arsenic calculated as arsenic ...

MINERAL FIBER COMPOSITIONS HAVING ENHANCED BIOPERSISTENT PROPERTIES AND METHODS FOR MAKING AND USING THE SAME

Described herein are mineral fiber compositions having enhanced characteristics, such as biopersistence and resistance to heat induced shrinkage. Also described are methods for making and using the same. Such compositions may comprise manganese oxide and aluminum oxide. 1. A composition comprising mineral fibers wherein: manganese oxide; and', 'aluminum oxide;, 'the mineral fibers comprise;'}wherein the manganese oxide is present in an amount from about 7 to about 10%, based on the total weight of the mineral fiber.2. The composition according to claim 1 , wherein the aluminum oxide is present in an amount greater than about 17% claim 1 , based on the total weight of the mineral fiber.3. The composition according to claim 1 , wherein the aluminum oxide is present in an amount between 17.5% to 21.0% claim 1 , based on the total weight of the mineral fiber.4. The composition according to claim 1 , wherein the mineral fiber comprises SiOpresent in an amount between 35.0% to 41.0% claim 1 , based on the total weight of the mineral fiber.5. The composition according to claim 1 , wherein the mineral fiber comprises FeOT present in an amount between 0.20% to 2.00% claim 1 , based on the total weight of the mineral fiber.6. The composition according to claim 1 , wherein the mineral fiber comprises MgO present in an amount between 5% to 9% claim 1 , based on the total weight of the mineral fiber.7. The composition according to claim 1 , wherein the mineral fiber comprises CaO present in an amount between 18% to 25% claim 1 , based on the total weight of the mineral fiber.8. The composition according to claim 1 , wherein the mineral fiber comprises KO present in an amount between 1.0% to 2.0% claim 1 , based on the total weight of the mineral fiber.9. The composition according to claim 1 , wherein the mineral fiber comprises about 40 wt. % of SiOand about 18.9 wt. % of AlO.10. The composition according to claim 9 , wherein the mineral fiber further comprises about 8.65 wt. % ...

METHOD FOR VITRIFICATION OF ARSENIC AND ANTIMONY

A method for vitrification of arsenic and antimony, comprising substituting oxygen to sulfur on thiosalts, incorporating resulting sodium arsenate and sodium antimonate into a sodium silicate glass-forming mixture and vitrifying the sodium silicate glass-forming mixture into a resulting glass sequestering the arsenic and antimony. 1. Method for vitrification of arsenic and antimony , comprising substituting oxygen to sulfur on thiosalts , incorporating resulting sodium arsenate and sodium antimonate into a sodium silicate glass-forming mixture and vitrifying the sodium silicate glass-forming mixture into a resulting glass sequestering the arsenic and the antimony.2. The method of claim 1 , wherein said substituting oxygen to sulfur on thiosalts is done by air or oxygen claim 1 , at a temperature in a range between about 200° C. and 400° C.3. The method of claim 1 , wherein the sodium silicate glass-forming mixture comprises silica in a range between 40 and 75% claim 1 , sodium oxide in a range between 10 and 25% w/w and ferric oxide in a range between 8 and 20% w/w.4. The method of claim 1 , wherein the sodium silicate glass-forming mixture comprises silica in a range between 40 and 75% claim 1 , sodium oxide in a range between 10 and 25% w/w claim 1 , and at least one of: ferric oxide in a range between 7 and 20% w/w claim 1 , calcium oxide in a range between 1 and 10% w/w claim 1 , magnesium oxide in a range between 0.1 and 2% w/w claim 1 , aluminium oxide in a range between 0.1 and 2% w/w claim 1 , potassium oxide in a range between 0.1 and 2% w/w and titanium oxide in a range between 0.1 and 2% w/w claim 1 , alone or combined claim 1 , in a total proportion in a range between about 5 and 20 w/w %.5. The method of claim 1 , wherein said vitrifying the sodium silicate glass-forming mixture comprises heating the sodium silicate glass-forming mixture at a temperature in a range between about 1000° C. and about 1200° C. under atmospheric pressure.6. The method of ...

GLASS PLATE FOR LIGHT GUIDE PLATE

A glass plate for a light guide plate includes a light emitting surface; and a light scattering surface that is opposite to the light emitting surface, wherein a refractive index distribution is provided between the light emitting surface and the light scattering surface in a plate thickness direction, and wherein a refractive index calculated from a measured value of reflectance of the light scattering surface is greater than a refractive index of an inner part of the glass plate measured by a V block method after each of the light emitting surface and the light scattering surface is polished and removed by 100 microns. 1. A glass plate for a light guide plate comprising:a light emitting surface; anda light scattering surface that is opposite to the light emitting surface,wherein a refractive index distribution is provided between the light emitting surface and the light scattering surface in a plate thickness direction, andwherein a refractive index calculated from a measured value of reflectance of the light scattering surface is greater than a refractive index of an inner part of the glass plate that is measured by a V block method after each of the light emitting surface and the light scattering surface is polished and removed by 100 microns.2. The glass plate for the light guide plate according to claim 1 , wherein a refractive index calculated from a measured value of reflectance of the light emitting surface is less than the refractive index of the inner part of the glass plate that is measured by the V block method after each of the light emitting surface and the light scattering surface is polished and removed by 100 microns.3. A glass plate for a light guide plate comprising:a light emitting surface; anda light scattering surface that is opposite to the light emitting surface,wherein a refractive index distribution is provided between the light emitting surface and the light scattering surface in a plate thickness direction, andwherein a refractive index ...

METHOD FOR PREPARING GLASS-CERAMICS, CAPABLE OF ADJUSTING MACHINABILITY OR TRANSLUCENCY THROUGH CHANGE IN TEMPERATURE OF HEAT TREATMENT

Provided is a method for preparing a lithium disilicate glass-ceramics containing silicate as a main component, and more particularly, to a method for preparing a glass-ceramics, which is capable of adjusting machinability or translucency according to a crystalline size by using a first heat treatment or a second heat treatment. To this end, a method for preparing a glass-ceramics containing a silica crystalline phase includes: performing a first heat treatment on a glass composition at a temperature of 400 to 850° C., so that a lithium disilicate crystalline phase and a silica crystalline phase each having a size of 5 to 2,000 nm are formed through the first heat treatment. After the first heat treatment, the method further includes performing a second heat treatment at a temperature of 780 to 880° C., so that translucency is adjusted by a temperature of the second heat treatment. 1. A glass composition for dental materials comprising:{'sub': '2', '60 to 83 wt % SiO;'}{'sub': '2', '10 to 15 wt % LiO;'}{'sub': 2', '5, '2 to 6 wt % POworking as a nuclei formation agent;'}{'sub': 2', '3, '1 to 5 wt % AlOfor increasing a glass transition temperature and a softening point and enhancing chemical durability of glass;'}0.1 to 3 wt % SrO for increasing the softening point of the glass;0.1 to 2 wt % ZnO;1 to 5 wt % colorants; and{'sub': 2', '2, '2.5 to 6 wt % mixture of NaO and KO for increasing a thermal expansion coefficient of the glass,'}wherein the glass composition is subjected to a first heat treatment at a temperature of 480 to 800° C. to form a lithium disilicate crystalline phase and a silica crystalline phase each having a size of 30 to 500 nm.2. A method for preparing a glass-ceramics containing a silica crystalline phase , the method comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'performing a first heat treatment on the glass composition of at a temperature of 480 to 800° C., so that a lithium disilicate crystalline phase and a silica crystalline ...

ALKALI-FREE GLASS

An alkali-free glass has a strain point of 650° C. or more, an average coefficient of thermal expansion at 50 to 350° C. of from 30×10to 45×10/° C., and a temperature Tat which a glass viscosity reaches 10dPa·s of from 1,500 to 1,800° C. The alkali-free glass contains, as represented by mol % based on oxides, SiO: from 62 to 70%, AlO: from 9 to 16% BO: from 0 to 12%, MgO: from 3 to 10%, CaO: from 4 to 12%, SrO: from 0 to 6%, and FeO: from 0.001 to 0.04%, provided that MgO+CaO+SrO+BaO is from 12 to 25%. The alkali-free glass has a β-OH value of from 0.35 to 0.85/mm. 1. An alkali-free glass having a strain point of 650° C. or more , an average coefficient of thermal expansion at 50 to 350° C. of from 30×10to 45×10/° C. , and a temperature Tat which a glass viscosity reaches 10dPa·s of from 1 ,500 to 1 ,800° C. ,comprising, as represented by mol % based on oxides,{'sub': '2', 'SiO: from 62 to 70%,'}{'sub': 2', '3, 'AlO: from 9 to 16%'}{'sub': 2', '3, 'BO: from 0 to 12%,'}MgO: from 3 to 10%,CaO: from 4 to 12%,SrO: from 0 to 6%, and{'sub': 2', '3, 'FeO: from 0.001 to 0.04%,'}provided that MgO+CaO+SrO+BaO is from 12 to 25%, andhaving a β-OH value of from 0.35 to 0.85/mm.2. The alkali-free glass according to claim 1 , wherein a value represented by the following formula A is from 7 to 30:{'br': None, 'sup': −4', '2', '−7', '2, 'sub': 2', '2', '2', '3', '2', '2, '(3.119×10T−0.2014T−17.38)[FeO]+(6.434×10T+0.0144T−7.842)[β-OH]\u2003\u2003Formula A'}{'sub': 2', '3', '2', '3, 'wherein [FeO] is a numerical value represented by mol % of a total iron in terms of FeO, and [β-OH] is a numerical value represented by a unit/mm.'}3. The alkali-free glass according to claim 1 , having an effective thermal conductivity at the temperature Tat which the glass viscosity reaches 10dPa·s of from 40 to 65 W/m·K.4. The alkali-free glass according to claim 1 , having a transmittance at a wavelength of 300 nm in terms of a plate thickness of 0.5 mm of 50% or more.5. The alkali-free glass ...

HEAT-ABSORBING GLASS PLATE AND METHOD FOR MANUFACTURING SAME

To provide a heat-absorbing glass plate having a low visible light transmittance, a solar transmittance sufficiently lower than the visible light transmittance, and a low excitation purity, and a process for its production. 1. A heat-absorbing glass plate containing iron , tin , selenium , cobalt and sulfur , wherein{'sub': 2', '3', '2', '3, 'the mass ratio of divalent iron as calculated as FeOto total iron as calculated as FeOis at least 55%,'}the ratio Tv/Te of the visible light transmittance Tv (by illuminant A, 2° visual field) as defined in JIS R3106 (1998) calculated as 4 mm thickness of the glass plate to the solar transmittance Te as defined in JIS R3106 (1998) calculated as 4 mm thickness of the glass plate, is at least 1.5,the visible light transmittance Tv (by illuminant A, 2° visual field) is at most 65% as defined in JIS R3106 (1998) calculated as 4 mm thickness of the glass plate, andthe excitation purity Pe is at most 7% as defined in JIS Z8701 (1999) calculated as 4 mm thickness of the glass plate.2. The heat-absorbing glass plate according to claim 1 , wherein the transmittance at a wavelength of 1 claim 1 ,500 nm is at most 30% calculated as 4 mm thickness of the glass plate.3. The heat-absorbing glass plate according to claim 1 , which provides a transmitted light having a dominant wavelength Dw of at most 560 nm as defined in JIS Z8701 (1999) calculated as 4 mm thickness of the glass plate.4. The heat-absorbing glass plate according to claim 1 , wherein the solar transmittance Te is at most 50% as defined in JIS R3106 (1998) calculated as 4 mm thickness of the glass plate.5. The heat-absorbing glass plate according to claim 1 , wherein the mass ratio (SnO/SO) of the content of total tin as calculated as SnOto the content of total sulfur as calculated as SOis from 0.2 to 210.6. The heat-absorbing glass plate according to claim 1 , wherein the content of total sulfur as calculated as SOas represented by mass % based on oxides is from 0.001 to 0.1%. ...

HEAT-RAY-ABSORBING GLASS PLATE AND METHOD FOR PRODUCING SAME

To provide a heat-absorbing glass plate of which amber coloring is suppressed, and which satisfies both low solar transmittance and high visible light transmittance. 1. A heat-absorbing glass plate containing iron , tin and sulfur , wherein , as represented by mass % based on oxides , the amount of total iron as calculated as FeOis at least 0.3% , the amount of total tin as calculated as SnOis less than 0.4% , and the ratio (SnO/SO) of the amount of total tin to the amount of total sulfur as calculated as SOis from 0.2 to 100.2. The heat-absorbing glass plate according to claim 1 , wherein the ratio Tv/Te of the visible light transmittance Tv (by illuminant A claim 1 , 2° visual field) as defined in JIS R3106 (1998) to the solar transmittance Te as defined in JIS R3106 (1998) claim 1 , and the amount of total iron t-FeOas calculated as FeOas represented by mass % based on oxides claim 1 , calculated as 4 mm thickness of the glass plate claim 1 , are in a relation of the following formulae:{'br': None, 'i': 't', 'sub': 2', '3, 'Tv/Te>1.70 when -FeOis at least 0.30% and less than 0.351%;'}{'br': None, 'i': t', 't, 'sub': 2', '3', '2', '3, 'Tv/Te>1.252×(-FeO)+1.260 when -FeOis at least 0.351% and less than 0.559%; and'}{'br': None, 'i': 't', 'sub': 2', '3, 'Tv/Te>1.960 when -FeOis at least 0.559%.'}3. The heat-absorbing glass plate according to claim 1 , wherein the ratio Tv/Te of the visible light transmittance Tv (by illuminant A claim 1 , 2° visual field) as defined in JIS R3106 (1998) to the solar transmittance Te as defined in JIS R3106 (1998) claim 1 , and the amount of total iron t-FeOas calculated as FeOas represented by mass % based on oxides claim 1 , calculated as 4 mm thickness of the glass plate claim 1 , are in a relation of the following formulae:{'br': None, 'i': 't', 'sub': 2', '3, 'Tv/Te>1.70 when -FeOis at least 0.30% and less than 0.351%;'}{'br': None, 'i': t', 't, 'sub': 2', '3', '2', '3, 'Tv/Te>1.252×(-FeO)+1.260 when -FeOis at least 0.351% and ...

HEAT RAY-ABSORBING GLASS PLATE AND METHOD FOR PRODUCING SAME

To provide a heat-absorbing glass plate having a low solar transmittance, a high visible light transmittance and a low excitation purity, and a process for its production. 1. A heat-absorbing glass plate containing iron , tin , selenium , cobalt and sulfur , wherein{'sub': 2', '3', '2', '3, 'the mass ratio of divalent iron as calculated as FeOto total iron as calculated as FeOis at least 55%,'}the ratio Tv/Te of the visible light transmittance Tv (by illuminant A, 2° visual field) as defined in JIS R3106 (1998) calculated as 4 mm thickness of the glass plate to the solar transmittance Te as defined in JIS R3106 (1998), calculated as 4 mm thickness of the glass plate, is at least 1.5,the visible light transmittance Tv (by illuminant A, 2° visual field) is higher than 65% as defined in JIS R3106 (1998) calculated as 4 mm thickness of the glass plate, andthe excitation purity Pe is at most 7% as defined in JIS Z8701 (1999) calculated as 4 mm thickness of the glass plate.2. The heat-absorbing glass plate according to claim 1 , wherein the transmittance at a wavelength of 1 claim 1 ,500 nm is at most 30% calculated as 4 mm thickness of the glass plate.3. The heat-absorbing glass plate according to claim 1 , which provides a transmitted light having a dominant wavelength Dw of at most 510 nm as defined in JIS Z8701 (1999) calculated as 4 mm thickness of the glass plate.4. The heat-absorbing glass plate according to claim 1 , wherein the solar transmittance Te is at most 50% as defined in JIS R3106 (1998) calculated as 4 mm thickness of the glass plate.5. The heat-absorbing glass plate according to claim 1 , wherein the mass ratio (SnO/SO) of the content of total tin as calculated as SnOto the content of total sulfur as calculated as SOis from 0.2 to 105.6. The heat-absorbing glass plate according to claim 1 , wherein the content of total sulfur as calculated as SOas represented by mass % based on oxides is from 0.002 to 0.1%.7. The heat-absorbing glass plate according to ...

GLASS PLATE FOR HEAT TREATMENT

An object of the present invention is to provide a glass plate capable of suppressing deformation of a glass product that is subject to load in a heat treatment process at a temperature not more than the glass strain point, such as chemical strengthening and coating. The present invention relates to a glass plate for heat treatment, in which the dimensionless index determined by the following formula is 1.6×10or less, the average viscosity η is log η≦15.1 log Pa·s or less, the relationship between the fictive temperature Tand the annealing point Tis T≧(T+5), and when the plate thickness h of glass is 7×10m or more, the displacement at the load point during the load applying time period is 78 μm or less: Dimensionless index=load F×load applying time period/(average viscosity η×plate thickness h). 4. The glass plate for heat treatment according to claim 2 , wherein the average viscosity η is log η≦15.1 log Pa·s.5. The glass plate for heat treatment according to claim 3 , wherein the average viscosity η is log η≦15.1 log Pa·s.6. The glass plate for heat treatment according to claim 1 , wherein the glass plate has a size of 1 claim 1 ,000 mm or more×1 claim 1 ,000 mm or more.7. The glass plate for heat treatment according to claim 2 , wherein the glass plate has a size of 1 claim 2 ,000 mm or more×1 claim 2 ,000 mm or more.8. The glass plate for heat treatment according to claim 3 , wherein the glass plate has a size of 1 claim 3 ,000 mm or more×1 claim 3 ,000 mm or more.9. The glass plate for heat treatment according to claim 1 , wherein the glass plate is formed by a float process.10. The glass plate for heat treatment according to claim 2 , wherein the glass plate is formed by a float process.11. The glass plate for heat treatment according to claim 3 , wherein the glass plate is formed by a float process. The present invention relates to a glass plate for heat treatment. More specifically, the present invention relates to a glass plate for use in a display/opening ...

COLORED GLASS PLATE AND METHOD FOR MANUFACTURING SAME

To provide a colored glass plate of which the mass ratio of divalent iron as calculated as FeOto total iron as calculated as FeOcan be stably maintained at a high level while amber coloring derived from salt cake (NaSO) is suppressed by reducing the amount of salt cake used as a refining agent, and which has less bubbles regardless of a small amount of total sulfur as calculated as SO. A colored glass plate which is made of alkali-containing silica glass containing iron, tin and sulfur, wherein, as represented by mass % based on oxides, the proportion of total sulfur as calculated as SOis less than 0.025%, the proportion of divalent iron as calculated as FeOto total iron as calculated as FeOis at least 45%, the proportion of divalent tin as calculated as SnOto total tin as calculated as SnOis at least 0.1% as represented by mol %, and β-OH is at least 0.15 mm. 1. A colored glass plate which is made of alkali-containing silica glass containing iron , tin and sulfur , wherein , as represented by mass % based on oxides , the proportion of total sulfur as calculated as SOis less than 0.025% , the proportion of divalent iron as calculated as FeOto total iron as calculated as FeOis at least 45% the proportion of divalent tin as calculated as SnOto total tin as calculated as SnOis at least 0.1% as represented by mol % , and β-OH is at least 0.15 mm.2. The colored glass plate according to claim 1 , wherein the proportion of divalent tin as calculated as SnOto total tin as calculated as SnOis from 0.2 to 40% as represented by mol %.3. The colored glass plate according to claim 1 , wherein 443−420×β-OH (mm)−4.8×Fe-redox (%) is less than 100.4. The colored glass plate according to claim 1 , wherein the proportion of divalent iron as calculated as FeOto total iron as calculated as FeOis at least 55%.9. The colored glass plate according to claim 1 , wherein the proportion of total sulfur as calculated as SOas represented by mass % based on oxides is at least 0.01% and less than ...

HEAT-RAY-ABSORBING GLASS PLATE AND METHOD FOR PRODUCING SAME

To provide a heat-absorbing glass plate of which amber coloring is suppressed, and which satisfies both low solar transmittance and high visible light transmittance. The heat-absorbing glass plate of the present invention is one containing iron, tin and sulfur, wherein, as represented by mass % based on oxides, the MgO content is at most 4.5%, the amount of total tin as calculated as SnOis less than 0.4%, and the ratio (SnO/SO) of the amount of total tin to the amount of total sulfur as calculated as SOis from 0.2 to 100. 1. A heat-absorbing glass plate containing iron , tin and sulfur , wherein , as represented by mass % based on oxides , the MgO content is at most 4.5% , the amount of total tin as calculated as SnOis less than 0.4% , and the ratio (SnO/SO) of the amount of total tin to the amount of total sulfur as calculated as SOis from 0.2 to 100.2. The heat-absorbing glass plate according to claim 1 , wherein the ratio Tv/Te of the visible light transmittance Tv (by illuminant A claim 1 , 2° visual field) as defined in JIS R3106 (1998) to the solar transmittance Te as defined in JIS R3106 (1998) claim 1 , and the amount of total iron t-FeOas calculated as FeOas represented by mass % based on oxides claim 1 , calculated as 4 mm thickness of the glass plate claim 1 , are in a relation of the following formulae:{'br': None, 'i': Tv/Te>', 't, 'sub': 2', '3, '1.70 when -FeOis less than 0.351%;'}{'br': None, 'i': Tv/Te>', 't', 't, 'sub': 2', '3', '2', '3, '1.252×(-FeO)+1.260 when -FeOis at least 0.351% and less than 0.559%; and'}{'br': None, 'i': Tv/Te>', 't, 'sub': 2', '3, '1.960 when -FeOis at least 0.559%.'}3. The heat-absorbing glass plate according to claim 1 , wherein the ratio Tv/Te of the visible light transmittance Tv (by illuminant A claim 1 , 2° visual field) as defined in JIS R3106 (1998) to the solar transmittance Te as defined in JIS R3106 (1998) claim 1 , and the amount of total iron t-FeOas calculated as FeOas represented by mass % based on oxides ...

COATING FILM-ATTACHED GLASS, COATING FILM-ATTACHED CHEMICALLY STRENGTHENED GLASS, EXTERIOR MEMBER, AND ELECTRONIC DEVICE

Coating film-attached glass includes: glass containing a coloring component; and a colored coating film formed on one major surface of the glass, wherein at least one of an absolute value of a difference between (Δa*(D65−F2)) of the glass and (Δa*(D65−F2)) of the coating film and an absolute value of a difference between (Δa*(A−F2)) of the glass and (Δa*(A−F2)) of the coating film is 0.2 or more, where (Δa*(D65−F2)) is a difference between a chromaticity a* value of reflected light by a D65 light source and a chromaticity a* value of reflected light by an F2 light source in an L*a*b* color system and (Δa*(A−F2)) is a difference between a chromaticity a* value of reflected light by an A light source and the chromaticity a* value of the reflected light by the F2 light source in the L*a*b* color system. 1. A coating film-attached glass comprising , glass containing a coloring component; and a colored coating film formed on one major surface of the glass ,wherein at least one of an absolute value of a difference between (Δa*(D65−F2)) of the glass and (Δa*(D65−F2)) of the coating film and an absolute value of a difference between (Δa*(A−F2)) of the glass and (Δa*(A−F2)) of the coating film is 0.2 or more, {'br': None, 'i': a', 'D', 'F', 'a', 'D', 'a', 'F, 'Δ*(65−2)=*value(65 light source)−*value(2 light source)\u2003\u2003(1), and'}, 'where (Δa*(D65−F2)) is a difference between a chromaticity a* value of reflected light by a D65 light source and a chromaticity a* value of reflected light by an F2 light source in an L*a*b* color system, which difference is expressed by the following expression (1),'} {'br': None, 'i': a', 'A−F', 'a', 'A', 'a', 'F, 'Δ*(2)=*value(light source)−*value(2 light source)\u2003\u2003(2),'}, '(Δa*(A−F2)) is a difference between a chromaticity a* value of reflected light by an A light source and the chromaticity a* value of the reflected light by the F2 light source in the L*a*b* color system, which difference is expressed by the following ...

METHOD FOR MODIFYING THE TRANSMISSION OF GLASSES AND GLASS CERAMICS AND GLASS OR GLASS CERAMIC ARTICLES THAT CAN BE PRODUCED ACCORDING TO THE METHOD

A product is provided that includes a volume-colored monolithic glass or glass ceramic element and to a method for producing same. The glass or glass ceramic element has a first region in which the coloration is modified so that light transmission of the first region differs from light transmission of a second, adjacent region. The light scattering in the region of modified coloration in the glass or glass ceramic remains the same as light scattering in the second, adjacent region with non-modified light transmission. 120. A method for producing a glass or glass ceramic article with locally modified transmission , wherein light scattering in a first region of the glass or glass ceramic differs from light scattering in a second region of the glass or glass ceramic by not more than percentage points , the method comprising:providing the glass or glass ceramic article which is volume-colored by color centers or coloring ions; anddirecting electromagnetic radiation onto a localized surface area of the glass or glass ceramic article, the electromagnetic radiation being absorbed in the material of the glass or glass ceramic article in an irradiated region; andchoosing a power density of the electromagnetic radiation such that a region of the glass or glass ceramic article is heated up by the electromagnetic radiation, wherein heating of the region is performed at least until an absorption coefficient and thus a light transmission of the material of the glass or glass ceramic article is modified in the region, at least in a spectral range;cooling the surface of the glass or glass ceramic article with a cooling fluid during exposure to the electromagnetic radiation;terminating the irradiation of electromagnetic radiation after heating; andcooling the region at a cooling rate of at least 1 K per second at least within a temperature range between a maximum temperature and 100 K below the maximum temperature.2. The method as claimed in claim 1 , wherein electromagnetic ...

GLASS SHEET COMPOSITE

The present invention is a glass sheet composite in which the loss coefficient is 1×10or more and the longitudinal wave acoustic velocity in the sheet thickness direction is 5.5×10m/s or more. 1. A glass sheet composite having a loss coefficient at 25° C. of 1×10or more and a longitudinal wave acoustic velocity in a sheet thickness direction of 5.5×10m/s or more.2. The glass sheet composite according to claim 1 , comprising two or more glass sheets and a liquid layer between at least a pair of glass sheets-out of the glass sheets.3. The glass sheet composite according to claim 2 , wherein a thickness of the liquid layer is1/10 or less of a total thickness of the pair of glass sheets when the total thickness of the pair of glass sheets is 1 mm or less, and100 μm or less when the total thickness of the pair of glass sheets is more than 1 mm.4. The glass sheet composite according to claim 2 , wherein the liquid layer has a viscosity coefficient at 25° C. of 1×10to 1×10Pa·s and a surface tension at 25° C. of 15 to 80 mN/m.5. The glass sheet composite according to claim 2 , wherein both of at least a pair of glass sheets out of all the glass sheets have a specific modulus of 2.5×10m/sor more.6. The glass sheet composite according to claim 2 , wherein out of two glass sheets constituting the pair of glass sheets claim 2 , denoting Qa and wa respectively as a resonant frequency and a half-width of resonance amplitude of one glass sheet A and denoting Qb and wb respectively as a resonant frequency and a half-width of resonance amplitude of the other glass sheet B claim 2 , Qa claim 2 , wa claim 2 , Qb and wb satisfy a relationship:{'br': None, 'i': wa+wb', 'Qa−Qb|., '()/4<|'}7. The glass sheet composite according to claim 2 , wherein a mass ratio of two glass sheets constituting the pair of glass sheets is from 0.8 to 1.25.8. The glass sheet composite according to claim 2 , wherein a sheet thickness of each of two glass sheets constituting the pair of glass sheets is from 0 ...

Inspectable Black Glass Containers

A soda-lime-silica glass container and related methods of manufacturing. A black-strikable glass composition having a base glass portion and a latent colorant portion is prepared. The base glass portion includes soda-lime-silica glass materials and one or more blue colorant materials, and the latent colorant portion includes cuprous oxide (CuO), stannous oxide (SnO), bismuth oxide (BiO), and carbon (C). Glass containers may be formed from the black-strikable glass composition, and these glass containers may be heated to a temperature greater than 600 degrees Celsius to strike black therein. The glass containers formed from the black-strikable glass composition may be inspected—before or after striking—by infrared inspection equipment. 1. A method of making a black-strikable glass container , the method including the steps of:{'sub': 2', '2', '2', '3', '2', '3', '2', '3', '2', '2', '3, 'preparing a black-strikable glass composition having a base glass portion and a latent colorant portion, wherein the base glass portion includes 60-75 wt. % SiO, 7-15 wt. % NaO, 6-12 wt. % CaO, 0.1-3.0 wt. % AlO, 0.0-2.0 wt. % MgO, 0.0-2.0 wt. % KO, 0.01-0.25 wt. % SO, 0.01-0.25 wt. % FeO, and 0.01-0.15 wt. % CoO and the latent colorant portion includes 0.0875-0.35 wt. % cuprous oxide (CuO), 0.06-0.5 wt. % stannous oxide (SnO), 0.006-0.05 wt. % bismuth oxide (BiO), and 0.02-0.10 wt. % carbon (C); and'}forming a black-strikable glass container from the black-strikable glass composition.2. The method set forth in including the additional step of:raising the temperature of the black-strikable glass container above 600 degrees Celsius to strike black coloration into the glass container.3. The method set forth in wherein the temperature of the black-strikable glass container is raised for 10 to 90 minutes to strike black coloration into the glass container.4. The method set forth in including the additional step of:raising the temperature of the black-strikable glass container to a ...

HIGH TRANSMISSION GLASSES

Compounds, compositions, articles, devices, and methods for the manufacture of light guide plates and back light units including such light guide plates made from glass. In some embodiments, light guide plates (LGPs) are provided that have similar or superior optical properties to light guide plates made from PMMA and that have exceptional mechanical properties such as rigidity, CTE and dimensional stability in high moisture conditions as compared to PMMA light guide plates. 1. A glass article , comprising:a glass sheet with a front face having a width and a height, a back face opposite the front face, and a thickness between the front face and back face forming four edges around the front and back faces,wherein the glass sheet comprises:{'sub': '2', 'between about 70 mol % to about 85 mol % SiO,'}{'sub': 2', '3, 'between about 0 mol % to about 5 mol % AlO,'}{'sub': 2', '3, 'between about 0 mol % to about 5 mol % BO,'}{'sub': '2', 'between about 0 mol % to about 10 mol % NaO,'}{'sub': '2', 'between about 0 mol % to about 12 mol % KO,'}between about 0 mol % to about 4 mol % ZnO,between about 3 mol % to about 12 mol % MgO,between about 0 mol % to about 5 mol % CaO,between about 0 mol % to about 3 mol % SrO,between about 0 mol % to about 3 mol % BaO, and{'sub': '2', 'between about 0.01 mol % to about 0.5 mol % SnO.'}2. A glass article , comprising:a glass sheet with a front face having a width and a height, a back face opposite the front face, and a thickness between the front face and back face forming four edges around the front and back faces,wherein the glass sheet comprises:{'sub': '2', 'greater than about 80 mol % SiO,'}{'sub': 2', '3, 'between about 0 mol % to about 0.5 mol % AlO,'}{'sub': 2', '3, 'between about 0 mol % to about 0.5 mol % BO,'}{'sub': '2', 'between about 0 mol % to about 0.5 mol % NaO,'}{'sub': '2', 'between about 8 mol % to about 11 mol % KO,'}between about 0.01 mol % to about 4 mol % ZnO,between about 6 mol % to about 10 mol % MgO,between ...

LITHIUM-RICH METALLURGICAL SLAG

The present invention concerns a slag composition having a high lithium content, suitable as additive in the manufacture of end-user products, or for the economic recovery of the contained lithium. 17-. (canceled)8. A LiO bearing metallurgical slag comprising AlO , SiO , CaO , and MnO , wherein the by-weight composition is as follows:{'sub': '2', '3% Подробнее

Color-Strikable Glass Containers

Latent colorant material compositions, soda-lime-silica glass compositions, and related methods of manufacturing color-strikable glass containers. The latent colorant material compositions may be introduced into a plurality of base glass compositions having redox numbers in the range of −40 to +20 to produce color-strikable glass compositions and color-strikable glass containers. The latent colorant material compositions introduced into the base glass compositions include a mixture of cuprous oxide (CuO), stannous oxide (SnO), bismuth oxide (BiO), and carbon (C). After formation, the color-strikable glass containers may be heat-treated to strike red or black therein. 1. A mixture of latent colorant materials formulated for use with a plurality of soda-lime silica base glass compositions having redox numbers in the range of −40 to +20 to produce a plurality of color-strikable glass compositions and a plurality of color-strikable glass containers , the mixture of latent colorant materials including:{'sub': 2', '2', '3, 'cuprous oxide (CuO), stannous oxide (SnO), bismuth oxide (BiO), and carbon (C).'}2. The mixture of latent colorant materials set forth in claim 1 , wherein the mixture is formulated to produce a plurality of color-strikable glass compositions which contain 0.0875-0.35 wt. % cuprous oxide (CuO) claim 1 , 0.06-0.5 wt. % stannous oxide (SnO) claim 1 , 0.006-0.05 wt. % bismuth oxide (BiO) claim 1 , and 0.02-0.10 wt. % carbon (C).3. The mixture of latent colorant materials set forth in claim 1 , wherein the mixture is formulated for use with flint and arctic blue base glass compositions having redox numbers in the range of +2 to +20 to produce a plurality of color-strikable glass containers.4. The mixture of latent colorant materials set forth in claim 1 , wherein the mixture is formulated for use with amber base glass compositions having redox numbers in the range of −20 to −40 to produce a plurality of color-strikable glass containers.5. The mixture of ...

FLOAT GLASS FOR CHEMICAL STRENGTHENING

A float glass, which is produced by a float process, has a bottom surface to contact a molten metal during forming and a top surface facing the bottom surface, and is capable of having, after chemical strengthening, a surface compressive stress of 600 MPa or more and a depth of a compressive stress layer of 15 μm or more from a surface thereof. Before chemical strengthening, a difference obtained by subtracting a surface compressive stress value σin the bottom surface from a surface compressive stress value σin the top surface is −0.6 MPa or more and 0.25 MPa or less. 1. A float glass , which is produced by a float process , has a bottom surface to contact a molten metal during forming and a top surface facing the bottom surface , and is capable of having , after chemical strengthening , a surface compressive stress of 600 MPa or more and a depth of a compressive stress layer of 15 μm or more from a surface thereof ,{'sub': CB', 'CT, 'wherein, before chemical strengthening, a difference obtained by subtracting a surface compressive stress value σin the bottom surface from a surface compressive stress value σin the top surface is −0.6 MPa or more and 0.25 MPa or less.'}2. The float glass according to claim 1 , wherein claim 1 , before chemical strengthening claim 1 , the difference obtained by subtracting the surface compressive stress value σin the bottom surface from the surface compressive stress value σin the top surface is less than 0 MPa.3. The float glass according to claim 1 , which has a sheet thickness of 1.5 mm or less.4. The float glass according to claim 2 , which has a sheet thickness of 1.5 mm or less.5. The float glass according to claim 1 , which is an alkali aluminosilicate glass.6. The float glass according to claim 2 , which is an alkali aluminosilicate glass.7. The float glass according to claim 3 , which is an alkali aluminosilicate glass.8. The float glass according to claim 4 , which is an alkali aluminosilicate glass. The present invention ...

MOLTEN GLASS CONDUIT STRUCTURE, AND DEVICE AND METHOD USING CONDUIT STRUCTURE

There are provided a conduit structure for molten glass, a vacuum degassing apparatus using the conduit structure, and a process for vacuum-degassing molten glass by use of the vacuum degassing apparatus, wherein without using a cooling system, solid thermal insulating materials constituting a backup for the conduit are prevented from being corroded by molten glass oozing out of a joint between adjacent fused cast refractories constituting the conduit, and wherein production cost is reduced. 1. A conduit structure for molten glass , comprising a conduit and a backup disposed around the conduit;the conduit being a hollow pipe made of fused cast refractories disposed in longitudinal and circumferential directions thereof;the backup comprising a refractory layer outside the conduit, and a thermal insulating material layer disposed outside the refractory layer;{'sub': 2', '3', '2, 'the refractory layer including a refractory brick layer made of refractory bricks disposed along the longitudinal and circumferential directions of the conduit, and a monolithic refractory layer formed by placing a monolithic refractory containing from 30 to 100% of AlOand from 0 to 70% of SiOin percent by mass on an oxide basis and sintering the monolithic refractory;'}the thermal insulating material layer containing a solid thermal insulating material layer made of solid thermal insulating materials disposed along the longitudinal and circumferential directions of the conduit;the fused cast refractories constituting the conduit, the monolithic refractory forming the refractory brick layer and the refractory bricks constituting the refractory brick layer are selected such that the refractory layer contains a portion that has a temperature equal to the flow point of the molten glass when the molten glass passes through the conduit.2. A conduit structure for molten glass , comprising a conduit and a backup disposed around the conduit;the conduit being a hollow pipe made of fused cast ...

GLASS, CHEMICALLY STRENGTHENED GLASS, EXTERIOR MEMBER, AND ELECTRONIC DEVICE

In glass or chemically tempered glass containing a coloring component, when chromaticity of a major surface is measured on the glass in a state of a glass plate with a 0.8 mm thickness, at least one of an absolute value of a difference (Δa*(D65−F2)) and is an absolute value of a difference (Δa*(A−F2)) is 2.10 or more, where the difference (Δa*(D65−F2)) is a difference between a chromaticity a* value of reflected light by a D65 light source and a chromaticity a* value of reflected light by an F2 light source in an L*a*b* color system and the difference (Δa*(A−F2)) is a difference between a chromaticity a* value of reflected light by an A light source and the chromaticity a* value of the reflected light by the F2 light source in the L*a*b* color system. 1. A glass containing a coloring component ,wherein, when chromaticity of a major surface is measured on the glass in a state of a glass plate with a 0.8 mm thickness,at least one of an absolute value of a difference (Δa*(D65−F2)) and an absolute value of a difference (Δa*(A−F2)) is 2.10 or more,where the difference (Δa*(D65−F2)) is a difference between a chromaticity a* value of reflected light by a D65 light source and a chromaticity a* value of reflected light by an F2 light source in an L*a*b* color system, which difference is expressed by the following expression (1),Δa*(D65−F2)=a* value (D65 light source)−a* value (F2 light source) . . . (1), and the difference (Δa*(A−F2)) between a chromaticity a* value of reflected light by an A light source and the chromaticity a* value of the reflected light by the F2 light source in the L*a*b* color system, which difference is expressed by the following expression (2),Δa*(A−F2)=a* value (A light source)−a* value(F2 light source) . . . (2).2. The glass according to claim 1 ,wherein an L* value (F2 light source) of the glass in the L*a*b* color system is within a range of 20 to 90.3. The glass according to claim 1 ,{'sub': 2', '2', '3', '2', '3', '2', '2, 'wherein the glass ...

COMPOSITE POWDER AND PASTE OF COMPOSITE POWDER

Provided is a composite powder, including 55 mass % to 95 mass % of glass powder, 5 mass % to 45 mass % of inorganic pigment powder, and 0 mass % to 20 mass % of refractory filler powder, in which the glass powder includes as a glass composition, in terms of mol %, 45% to 62% of SiO, 0% to 10% of BO, 0% to 9% of AlO, 12% to 32% of ZnO, 12% to 28% of LiO+NaO+KO, 0% to 10% of BaO, and 0% to 15% of TiO+ZrO. 1. A composite powder , comprising 55 mass % to 95 mass % of glass powder , 5 mass % to 45 mass % of inorganic pigment powder , and 0 mass % to 20 mass % of refractory filler powder ,{'sub': 2', '2', '3', '2', '3', '2', '2', '2', '2', '2, 'wherein the glass powder comprises as a glass composition, in terms of mol %, 45% to 62% of SiO, 0% to 10% of BO, 0% to 9% of AlO, 12% to 32% of ZnO, 12% to 28% of LiO+NaO+KO, 0% to 10% of BaO, and 0% to 15% of TiO+ZrO.'}2. The composite powder according to claim 1 , wherein a content of TiO+ZrOin the glass powder is from 0.1% to 10%.3. The composite powder according to claim 1 , wherein the glass powder has a molar ratio SiO/BOof from 5 to 15.4. The composite powder according to claim 1 , wherein the glass powder has a molar ratio ZnO/BOof from 1 to 6.5. The composite powder according to claim 1 , wherein a content of BaO in the glass powder is from 0.1% to 5%.6. The composite powder according to claim 1 , wherein a content of SiO+ZnO in the glass powder is 65% or more.7. The composite powder according to claim 1 , wherein a content of LiO in the glass powder is from 5% to 20%.8. The composite powder according to claim 1 , wherein the glass powder is substantially free of PbO and BiO.9. The composite powder according to claim 1 , wherein the inorganic pigment powder comprises a Cr-based composite oxide.10. The composite powder according to claim 1 , comprising 55 mass % to 85 mass % of the glass powder claim 1 , 15 mass % to 45 mass % of the inorganic pigment powder claim 1 , and 0 mass % to 10 mass % of the refractory filler ...

A THERMOCHROMIC GLASS MATERIAL AND A PRODUCTION METHOD THEREOF

The present invention relates a thermochromic glass material comprising heavy metal oxide, alkali oxide, halide and at least one of other compounds supporting glass formation together with tellurium oxide (TeO); and a production method thereof comprising the steps of preparing the powder mixture comprising TeO(), melting the mixture by heating (), cooling the molten mixture by pouring into a mold and obtaining glass (), keeping the glass removed from the mold in a drying oven and cooling (). 111.-. (canceled)12. A thermochromic glass material comprising at least one of heavy metal oxide , alkali oxide , halide components together with tellurium oxide (TeO) in order to achieve glass formation; and TeOwhich is in ratio of 30-95% by mole and which enables transmittance value , absorption edge value and band gap energy and thus the color to continuously and reversibly change in the visible region depending on temperature , and allows electronic passage by behaving like an electrolyte as a result of being vitrified and shows semi-conductive feature.13. A thermochromic glass material according to claim 12 , wherein the material comprises at least one of WO claim 12 , LiO claim 12 , NaO claim 12 , KO claim 12 , ZnO claim 12 , CdO claim 12 , BO claim 12 , TiO claim 12 , CuO claim 12 , FeO claim 12 , VO claim 12 , PbO claim 12 , NbO claim 12 , MoO claim 12 , GeO claim 12 , PO claim 12 , AgO claim 12 , SbO claim 12 , PbF claim 12 , LiCl claim 12 , ZnClcompounds as well as TeO14. A thermochromic glass material according to claim 13 , wherein the material comprises 0-35% WO claim 13 , 0-45% LiO claim 13 , 0-40% NaO claim 13 , 0-30% KO claim 13 , 0-40% ZnO claim 13 , 0-15% CdO claim 13 , 0-27.5% BO claim 13 , 0-15% TiO claim 13 , 0-50% CuO claim 13 , 0-20% FeO claim 13 , 0-55% VO claim 13 , 0-20% PbO claim 13 , 0-25% NbO claim 13 , 0-55% MoO claim 13 , 0-30% GeO claim 13 , 0-25% PO claim 13 , 0-20% AgO claim 13 , 0-20% SbO claim 13 , 0-25% PbF claim 13 , 0-30% LiCl claim 13 , 0- ...

Nickel-Free And Chromium-Free Forehearth Colors For Glass Tanks

The invention relates to the field of forehearth frits, pearls, and/or concentrates for use in glass compositions. In particular, the present invention provides a system of forehearth frits, pearls, and/or concentrates that is capable of imparting a brown color to a glass composition for forming colored glass in the forehearth of a glass furnace, and a method of using the colored system of forehearth frits, pearls, and/or concentrates. The invention further provides a glass composition for use in forming the color system or for use directly in a forehearth. 1. A color glass frit free of nickel and chromium , the frit comprising in weight %:{'sub': '2', 'from about 30 to about 50% SiO,'}{'sub': '2', 'from about 15 to about 30% NaO,'}{'sub': 2', '3, 'from about 1 to about 10% BO,'}{'sub': 2', '3, 'from about 10 to about 30% FeO,'}from about 0.1 to about 5% ZnO,{'sub': 2', '3, 'from about 0.1 to about 5% AlO,'}from about 0.1 to about 5% CuO,from about 0.01 to about 1% CoO,from about 0.1 to about 5% Se;{'sub': '2', 'from about 1 to about 8% SnO/SnO,'}no nickel andno chromium.2. The color glass frit of wherein the color glass frit is further devoid of at least one heavy metal other than nickel and chromium.3. The color glass frit of wherein the color glass frit is further devoid of all heavy metals.4. A method for coloring a molten base glass in the forehearth of a glass furnace comprising the steps of: [{'sub': '2', 'i. from about 30 to about 50% SiO,'}, {'sub': '2', 'ii. from about 15 to about 30% NaO,'}, {'sub': 2', '3, 'iii. from about 1 to about 10% BO,'}, {'sub': 2', '3, 'iv. from about 10 to about 30% FeO,'}, 'v. from about 0.1 to about 5% ZnO,', 'vi. from about 0.1 to about 5% Al2O3,', 'vii. from about 0.1 to about 5% CuO,', 'viii. from about 0.01 to about 1% CoO,', 'ix. from about 0.1 to about 5% Se; and', {'sub': '2', 'x. from about 1 to about 8% SnO/SnO.'}], 'a. forming a frit that is free of nickel and chromium, the frit comprising'}b. combining the frit with ...

HEAT-RAY- AND ULTRAVIOLET-ABSORBENT GLASS SHEET, AND METHOD FOR MANUFACTURING SAME

The present invention aims to provide a heat-ray- and ultraviolet-absorbing glass plate having low solar transmittance and ultraviolet transmittance, having a high visible light transmittance, and containing a small amount of bubbles. The present invention relates to a heat-ray- and ultraviolet-absorbing glass plate that is a soda lime glass having a specific composition, having a mass proportion of divalent iron to the total iron being 50% or more, and having, as a value calculated as 4 mm thickness of the glass plate, a visible light transmittance Tv of 66% or more, a solar transmittance Te of 65% or less, a ratio Tv/Te of Tv and Te of 1.3 or more, and an ultraviolet transmittance Tuv of 50% or less. 5. The heat-ray- and ultraviolet-absorbing glass plate according to claim 1 , having a* value and b* value as defined in JIS Z 8781 (1999) satisfying: −10≦a*≦2 and −4≦b*≦6 claim 1 , as values calculated as 4 mm thickness of the glass plate.6. The heat-ray- and ultraviolet-absorbing glass plate according to claim 1 , further comprising claim 1 , as represented by mass percentage based on oxides:CoO: 0.00005 to 0.0030%.7. The heat-ray- and ultraviolet-absorbing glass plate according to claim 1 , satisfying a mass ratio (SnO/SO) of the content of the total tin calculated as SnOto the content of the total sulfur calculated as SObeing from 0.2 to 100.8. The heat-ray- and ultraviolet-absorbing glass plate according to claim 1 , satisfying a ratio ((SnO/SO)/Fe-redox) of the mass ratio (SnO/SO) of the content of the total tin calculated as SnOto the content of the total sulfur calculated as SOto the mass proportion (Fe-redox) of divalent iron calculated as FeOto the total iron calculated as FeObeing from 0.0025 to 5.9. The heat-ray- and ultraviolet-absorbing glass plate according to claim 1 , satisfying the following N value being 0 or more:{'br': None, 'sub': 2', '3', '2', '3', '2', '3', '2, 'N value=(mass of divalent iron calculated as FeO)−40×(total iron calculated as FeO ...

GLASS ARTICLE WITH HIGH COEFFICIENT OF THERMAL EXPANSION

A glass article includes an alkali-alkaline-alumino-silicate composition, wherein the glass article has a coefficient of thermal expansion (CTE) in a range from about 110×10/° C. to about 130×10/° C. over a temperature range of 0-300° C. 1. A glass article comprising an alkali-alkaline-alumino-silicate composition , wherein the glass article has a coefficient of thermal expansion (CTE) in a range from about 110×10/° C. to about 130×10/° C. over a temperature range of 0-300° C.2. The glass article of claim 1 , wherein the alkali-alkaline-alumino-silicate composition comprises:{'sub': '2', 'about 47 mol % to about 55 mol % SiO;'}{'sub': 2', '3, 'about 5 mol % to about 11 mol % AlO;'}{'sub': '2', 'about 12 mol % to about 18 mol % NaO;'}{'sub': '2', 'about 5 mol % to about 11 mol % KO;'}about 13 mol % to about 21 mol % CaO; and0 mol % to about 0.4 mol % MgO.3. The glass article of claim 1 , wherein the alkali-alkaline-alumino-silicate composition comprises:{'sub': '2', 'about 48 mol % to about 54 mol % SiO;'}{'sub': 2', '3, 'about 6 mol % to about 10 mol % AlO;'}{'sub': '2', 'about 13 mol % to about 17 mol % NaO;'}{'sub': '2', 'about 6 mol % to about 10 mol % KO;'}about 15 mol % to about 19 mol % CaO; andabout 0.05 mol % to about 0.3 mol % MgO.4. The glass article of claim 1 , wherein the (CTE) is in a range from about 115×10/° C. to about 130×10/° C. over a temperature range of 0-300° C.5. The glass article of claim 1 , wherein the (CTE) is in a range from about 120×10/° C. to about 130×101° C. over a temperature range of 0-300° C.6. The glass article of claim 2 , wherein the alkali-alkaline-alumino-silicate composition comprises less than about 1 mol % SnO.7. The glass article of claim 1 , wherein an alkali component of the alkali-alkaline-alumino-silicate composition is NaO claim 1 , KO claim 1 , or a combination thereof.8. The glass article of claim 1 , wherein the article is a substrate.9. The glass article of claim 1 , wherein the article is a cap.10. The glass ...

SELENIUM-FREE SUNGLASS MATERIAL WITH BROWN TINT

UV- and IR-absorbing materials with brown tint for sunglasses are described. The sunglass materials are prepared from a base glass through a post-fabrication process that includes ion exchange with silver. The tint of the sunglass material can be adjusted by controlling the level of ion exchange of the base glass with silver by varying the conditions of ion exchange. A wide range of tint is possible, including multiple shades of brown tint. In a typical process, a base glass having strong absorption in the UV and IR is fabricated and the resulting glass is subjected to a post-fabrication silver ion exchange process to control tint. The post-fabrication silver ion exchange process permits control of tint while maintaining strong UV and IR absorption and adequate transmittance in the visible. 1. A method for processing a glass comprising:{'sub': 2', '3', '2, 'placing a first glass in an ion-exchange bath, said first glass comprising BOand SiO, said first glass lacking Se, said ion-exchange bath comprising a silver salt and introducing silver into said first glass to form a second glass.'}2. The method of claim 1 , wherein said silver salt has a concentration in the range from 0.01 wt % to 1.0 wt % in said ion-exchange bath.3. The method of claim 1 , wherein said silver salt is silver nitrate.4. The method of claim 1 , wherein said first glass has a first average percent transmittance (% T) claim 1 , for a thickness of 1.9 mm claim 1 , over the wavelength range from 780 nm-2000 nm and said second glass has a second average percent transmittance (% T) claim 1 , for a thickness of 1.9 mm claim 1 , over the wavelength range from 780 nm-2000 nm claim 1 , said second average percent transmittance (% T) being within the range from 50%-150% of said first average percent transmittance (% T).5. The method of claim 4 , wherein said first glass has a third average percent transmittance (% T) claim 4 , for a thickness of 1.9 mm claim 4 , over the wavelength range from 280 nm-400 ...

GLASS AND MANUFACTURING METHOD OF GLASS PLATE

To provide glass having a favorable color tone, and its production process. 1. Glass comprising , as represented by mass percentage based on oxides:{'sub': '2', 'SiO: at least 60% and at most 75%,'}{'sub': '2', 'NaO: at least 8% and at most 20%,'}MgO: at least 4.5%,CaO: at least 1% and at most 10%, and{'sub': 2', '3, 'ErO: at least 0.01% and at most 0.5%.'}2. The glass according to claim 1 , wherein the glass further comprises claim 1 , as represented by mass percentage based on oxides claim 1 , at least 0.5% and at most 15% of AlO.3. The glass according to claim 1 , wherein the glass further comprises claim 1 , as represented by mass percentage based on oxides claim 1 , at least 0% and at most 0.1% of total iron as calculated as FeO.4. The glass according to claim 1 , wherein the glass comprises claim 1 , as represented by mass percentage based on oxides claim 1 , at most 8% of CaO when the SiOcontent is at least 70% claim 1 , or above 8% of CaO when the SiOcontent is less than 70%.5. The glass according to claim 1 , wherein the glass comprises claim 1 , as represented by mass percentage based on oxides claim 1 , at least 4.5% and at most 15% of MgO.6. The glass according to claim 1 , wherein a Q value determined by the formula (MgO content/CaO content)×(CaO content+NaO content−AlOcontent) as represented by mass percentage based on oxides claim 1 , is at least 15.7. The glass according to claim 1 , wherein a ratio (MgO/CaO) of the MgO content to the CaO content is at least 0.8 and at most 25.8. The glass according to claim 1 , wherein the glass further comprises SO.9. The glass according to claim 1 , wherein the glass further comprises TiO.10. The glass according to claim 1 , wherein the glass further comprises SnO.11. A manufacturing method of a glass plate claim 1 , wherein the manufacturing method comprises:{'sub': 2', '2', '2', '3, 'preparing glass raw materials so that a glass plate after forming comprises, as represented by mass percentage based on oxides, at ...

FOAMED GLASS HYDROPONIC SUBSTRATE

A foamed glass plant growth support structure, including a foamed glass substrate and a plurality of interconnected pores distributed throughout the substrate. The substrate is characterized by a porosity of at least about 65 percent. The pore size is substantially between about 0.2 and about 2 millimeters and the substrate is sufficiently chemically stable such that water filling the plurality of interconnected pores experiences a pH shift of less than 0.5. 1. A method of producing chemically stable foamed glass for use as a plant growth medium , comprising the steps of:a) combining a foaming agent, a pH control agent, and particulate waste glass to define an admixture having from about 1 weight percent to about 5 weight percent foaming agent and from about 1 weight percent to about 3 weight percent pH control agent with the remainder being particulate waste glass;b) drying the admixture at temperatures between about 400 degrees Fahrenheit to about 450 degrees Fahrenheit;c) after drying, sintering the admixture at temperatures between about 1300 and about 1500 degrees Fahrenheit;d) foaming the admixture at temperatures ranging from between about 1450 degrees Fahrenheit and about 1600 degrees Fahrenheit to yield a soft foamed glass body;e) curing the soft foamed glass body at temperatures between about 1560 degrees Fahrenheit and about 1580 degrees Fahrenheit;f) cooling the soft foamed glass body at temperatures between about 1400 degrees Fahrenheit and about 1550 degrees Fahrenheit; andg) immediately after f), quenching the softened foamed glass body with flowing air at room temperature to yield a foamed glass substrate;wherein the substrate includes at least about 65 volume percent interconnected pores;wherein the pores have diameters between about 0.2 mm and about 2 mm;wherein the pore walls have a crazed microstructure; andwherein the pores include a pH buffering agent available for aqueous dissolution.2. The method of wherein the foamed glass substrate is ...

GLASS SUBSTRATE

A technical object of the present invention is to devise an alkali-free glass that has a high etching rate in a HF-based chemical and a high strain point while having excellent productivity (particularly, devitrification resistance), to thereby reduce the production cost of a glass substrate, and then increase thinning efficiency and reduce the thermal shrinkage of the glass substrate in a production process of a display panel. In order to achieve the above-mentioned object, a glass substrate of the present invention includes as a glass composition, in terms of mol %, 65% to 75% of SiO, 11% to 15% of AlO, 0% to 5% of BO, 0% to 5% of MgO, 0% to 10% of CaO, 0% to 5% of SrO, 0% to 6% of BaO, and 0.01% to 5% of PO, and has a molar ratio (MgO+CaO+SrO+BaO)/AlOof from 0.7 to 1.5. 1. A glass substrate , which comprises as a glass composition , in terms of mol % , 65% to 75% of SiO , 11% to 15% of AlO , 0% to 5% of BO , 0% to 5% of MgO , 0% to 10% of CaO , 0% to 5% of SrO , 0% to 6% of BaO , and 0.01% to 5% of PO , and has a molar ratio (MgO+CaO+SrO+BaO)/AlOof from 0.7 to 1.5.2. The glass substrate according to claim 1 , wherein the glass substrate satisfies a relationship of {2×[SiO]−[MgO]−[CaO]−[SrO]−[BaO]}≦133% in terms of mol %.3. The glass substrate according to claim 1 , wherein the glass substrate has a content of LiO+NaO+KO of 0.5 mol % or less in the glass composition.4. The glass substrate according to claim 1 , wherein the glass substrate has a content of BOof 3.0 mol % or less in the glass composition.5. The glass substrate according to claim 1 , wherein the glass substrate has a content of FeO+CrOof 0.02 mol % or less in the glass composition.6. The glass substrate according to claim 1 , wherein the glass substrate has a strain point of 710° C. or more.7. The glass substrate according to claim 1 , wherein the glass substrate has an etching depth of 25 μm or more when immersed in a 10 mass % HF aqueous solution at room temperature for 30 minutes.8. The glass ...

PINK ALUMINOSILICATE GLASS

A pink aluminosilicate glass, comprising: a glass former, a network intermediate oxide, a network modifier oxide, a network former oxide, a network modifier, a colorant and a clarificant, wherein the glass former is SiO, the network modifier oxide is CaO, MgO, KO and NaO, the network former oxide is BO, and the network modifier is ZrOand SrO. This glass is pink in visible light, has a good visual effect, and has a relatively high thermal stability, and can improve the usage safety in harsh working environments. 1. A pink aluminosilicate glass , comprising a glass former , a network intermediate oxide , a network modifier oxide , a network former oxide , a network modifier , a colorant , and a clarificant.2. The glass of claim 1 , wherein claim 1 , the colorant is a rare earth oxide.3. The glass of claim 2 , wherein claim 2 , the rare earth oxide is ErO.4. The glass of claim 3 , wherein claim 3 , the content of ErOis 0.01-3% by mass of the total mass of the glass.5. The glass of claim 1 , wherein claim 1 , the glass former is SiOaccounting for 55%-80% by mass of the total mass of the glass.6. The glass of claim 1 , wherein claim 1 , the network intermediate oxide is AlOaccounting for 5-22% by mass of the total mass of the glass.7. The glass of claim 1 , wherein claim 1 , the network modifier oxide is CaO accounting for 1-10% by mass of claim 1 , MgO accounting for 1-10% by mass of claim 1 , KO accounting for 1-10% by mass of claim 1 , and NaO accounting for 1-10% by mass of the total mass of the glass.8. The glass of claim 1 , wherein claim 1 , the network former oxide is BOaccounting for 0-10% by mass of the total mass of the glass.9. The glass of claim 1 , wherein claim 1 , the network modifier is ZrOaccounting for 0-5% by mass of claim 1 , and SrO accounting for 0-10% by mass of the total mass of the glass.10. The glass of claim 1 , wherein claim 1 , the clarificant is SnO accounting for 0.01-1% by mass of the total mass of the glass. The invention relates to a ...

TUNABLE GLASS COMPOSITIONS HAVING IMPROVED MECHANICAL DURABILITY

A glass composition includes: greater than or equal to 24 mol % and less than or equal to 60 mol % SiO; greater than or equal to 23 mol % and less than or equal to 35 mol % AlO; greater than or equal to 3.5 mol % and less than or equal to 35 mol % BO; greater than 0 mol % and less than or equal to 20 mol % LiO; greater than or equal to 0 mol % and less than or equal to 10 mol % NaO; and greater than or equal to 0 mol % and less than or equal to 3 mol % KO. The sum of LiO, NaO, and KO (i.e., RO) in the glass composition may be greater than or equal to 12 mol % and less than or equal to 20 mol %. 1. A glass composition comprising:{'sub': '2', 'greater than or equal to 24 mol % and less than or equal to 60 mol % SiO;'}{'sub': 2', '3, 'greater than or equal to 23 mol % and less than or equal to 35 mol % AlO;'}{'sub': 2', '3, 'greater than or equal to 3.5 mol % and less than or equal to 35 mol % BO;'}{'sub': '2', 'greater than 0 mol % and less than or equal to 20 mol % LiO;'}{'sub': '2', 'greater than or equal to 0 mol % and less than or equal to 10 mol % NaO; and'}{'sub': 2', '2', '2', '2', '2', '2, 'greater than or equal to 0 mol % and less than or equal to 3 mol % KO, wherein RO is greater than or equal to 12 mol % and less than or equal to 20 mol %, RO being the sum of LiO, NaO, and KO.'}2. The glass composition of claim 1 , wherein AlO+BOis greater than or equal to 28 mol % and less than or equal to 60 mol %.3. The glass composition of claim 1 , wherein the glass composition comprises greater than or equal to 24 mol % and less than or equal to 34 mol % AlO.4. The glass composition of claim 1 , wherein the glass composition comprises greater than or equal to 5 mol % and less than or equal to 30 mol % BO5. The glass composition of claim 1 , wherein AlO−RO−RO is greater than or equal to −0.5 mol %.6. The glass composition of claim 1 , wherein the glass composition comprises greater than or equal to 3 mol % and less than or equal to 18 mol % LiO.7. The glass composition ...

OPTICAL GLASS, OPTICAL PREFORM AND OPTICAL ELEMENT

The invention provides an optical glass having excellent precision molding performance and having a refractive index of 1.46-1.53 and an Abbe number of 77-84. The optical glass comprises the following components based on cations in the molar percentage: P: 10-35%, Al: 10-35%, Ba: 1-20%, Sr: 10-35%, Ca: 1-20%, Gd: 0-10%, and Na: 0-10%; the ratio of Sr/(Gd+Na) being 1-30; anions comprising F and O, wherein the ratio F/P of F content relative to the total molar percentage of anions to P content relative to the total molar percentage of cations is 2.5 or more. The invention by rationally adjusting the proportions of the components, the molding performance of the optical glass is improved, and the problem that glass is broken and forms fogs during the molding process is solved, thereby the yield in manufacturing optical elements is improved. 1. An optical glass , comprising:{'sup': 5+', '3+', '2+', '2+', '2+', '3+', '3+', '+', '2+', '3+', '+', '2+', '3+', '3+, 'the following components (calculated by cations) in molar percentages: P: 10-35%, Al: 10-35%, Ba: 1-20%, Sr: 10-35%, Ca: 1-20%, Gd: 0-10%, Y: 0-10%, and Na: 0-10%; the ratio of Sr/(Gd+Na) being 1-30; the ratio of Sr/(Gd+Y) being 3-15;'}{'sup': −', '2−', '−', '5+', '−', '5+, 'anions comprising F and O, wherein a ratio F/P of F content relative to the total molar percentage of the anions to P content relative to the total molar percentage of the cations is 2.5 or more.'}2. The optical glass according to claim 1 , further comprising the following components (calculated by based on the cations) in the molar percentages: additional cations:{'sup': '2+', 'Mg: 0-15%,'}{'sup': '3+', 'La: 0-10%,'}{'sup': '3+', 'Yb: 0-10%,'}{'sup': '+', 'Li: less than 4%,'}{'sup': '+', 'K: 0-10%,'}{'sup': '2+', 'Zn: 0-10%,'}{'sup': '5+', 'Nb: 0-10%,'}{'sup': '4+', 'Ti: 0-10%, and'}{'sup': '4+', 'Zr: 0-10%, wherein the percentages are molar percentages of the cations.'}3. An optical glass claim 1 , comprising the following components based ...

ION BEAM TREATMENT METHOD FOR PRODUCING SUPERHYDROPHILIC GLASS MATERIALS

Process for treatment by an ion beam of a glass material where: 1. A treatment process for enhancing the hydrophilic properties of a glass material , wherein it consists of an ion bombardment where:the ions of the ion beam are selected from the ions of the elements of the list consisting of nitrogen (N) and oxygen (O);- the acceleration voltage, AV, of the ions is greater than or equal to 5 kV and less than or equal to 1000 kV , in particular greater than or equal to 5 kV and less than or equal to 200 kV, indeed even greater than or equal to 10 kV and less than or equal to 100 kV;the temperature of the glass material is less than or equal to the glass transition temperature;{'sup': 12', '2', '18', '2', '15', '2', '15', '2', '17', '2, 'the dose of ions per unit of surface area is located within a range of between 10ions/cmand 10ions/cm, in particular of greater than or equal to 10ions/cm, indeed even of greater than or equal to 10ions/cmand less than or equal to 10ions/cm.'}2. The treatment process for lastingly strengthening the hydrophilic treatment as claimed in claim 1 , wherein the glass material forms the subject of a pretreatment consisting of an ion bombardment claim 1 , where:the ions of the ion beam are selected from the ions of the elements of the list consisting of argon (Ar), krypton (Kr) and xenon (Xe);the acceleration voltage of the ions is greater than or equal to 5 kV and less than or equal to 1000 kV;the temperature of the glass material is less than or equal to the glass transition temperature;{'sup': 12', '2', '18', '2, 'the dose of ions per unit of surface area is chosen within a range of between 10ions/cmand 10ions/cm.'}3. The process as claimed in claim 2 , wherein the dose range for the argon (Ar) ions is between 5×10and 5×10ions per cmin order to lastingly strengthen the hydrophilic properties.4. The process as claimed in claim 2 , wherein the dose range for the krypton (Kr) ions is between 10and 10ions per cmin order to lastingly strengthen ...

Amorphous Silica Products, Articles, and Particles and Methods of Producing Amorphous Silica Products, Articles, and Particles from Concrete

Concrete may be melted to form a glass product. Methods and batch compositions including concrete may be used to produce amorphous silica materials including, but not limited to, glass, container glass, fiber glass, glass bead, glass spheres, sheet or plate glass, glass aggregate, glass sand, abrasives, proppants, foamed glass, and manufactured glass articles. The initial processing steps include preparing a melt batch comprising concrete and, optionally, other components, melting the melt batch, and cooling the melted melt batch. Further processing steps may be utilized to produce the glass article. 1. A method of producing an amorphous silica material , comprising:preparing a batch comprising concrete;melting the batch in a furnace to melt effluent; andcooling the melt effluent to form amorphous silica particles, mass or product.2. The method of claim 1 , comprising crushing the amorphous silica particles claim 1 , mass or product to form glass particles.3. The method of claim 1 , comprising molding the amorphous silica particles claim 1 , mass or product to form a glass container or other glass article.4. The method of claim 1 , comprising floating the melt effluent to form a sheet of glass claim 1 , wherein the mass is the sheet of glass.5. The method of claim 1 , wherein the batch comprises glass cullet claim 1 ,6. The method of claim 2 , wherein the batch comprises at least one flux.7. The method of claim 1 , wherein the batch comprises at least one flux.8. The method of claim 5 , wherein the glass cullet is in a concentration range from 1 wt. % to 95 wt. %.9. The method of claim 5 , wherein the glass cullet is in a concentration range from 1 wt. % to 80 wt. %.10. The method of claim 5 , wherein the glass cullet is in a concentration range from 1 wt. % to 50 wt. %.11. The method of claim 5 , wherein the glass cullet is in a concentration range from 1 wt. % to 25 wt. %.12. The method of claim 5 , wherein the glass cullet is in a concentration range from 10 wt. ...

GLASS-CERAMIC GLASS ARTICLE AND METHOD FOR OBTAINING SAME

A glass, in particular glass-ceramic, article, which is intended in particular to be used with at least one heating element, is formed of at least one substrate, such as a glass-ceramic plate. The substrate is at least partly coated with at least one layer of ink, which is advantageously deposited by inkjet printing. The ink is formed of nanoscale pigments and of at least one silicone binder. The layer of ink is coated with at least one layer of silicone-based paint. The layer of paint advantageously is deposited in the form of a flat tint, in particular by screen printing, and preferably being opacifying. 1. A glass article comprising:at least one substrate made of glass material, said substrate being at least partly coated with at least one layer of ink, the ink being formed of nanoscale pigments and of at least one silicone binder, said layer of ink being coated with at least one layer of silicone-based paint.2. The article as claimed in claim 1 , wherein the ink is free of glass frit.3. The article as claimed in claim 1 , wherein the coated substrate has a light transmission Tof less than 15% on its coated surface.4. The article as claimed in claim 1 , wherein the coating formed of the two layers is on a lower or inner face of the substrate.5. The article as claimed in claim 1 , wherein the substrate is formed of a glass material having a CTE of less than 50×10Kbetween 20° C. and 300° C. claim 1 , said material being a glass-ceramic claim 1 , having a CTE of less than 30×10K claim 1 , or being another glass material having a CTE of less than 50×10Kbetween 20° C. and 300° C.6. The article as claimed in claim 1 , wherein the substrate is formed of a transparent glass-ceramic.76. The article as claimed in claim 1 , wherein the layer of ink is non-opaque and the layer of paint is opacifying.8. The article as claimed in claim 1 , wherein the silicone binder(s) represent from 50% to 95% by weight of the ink.9. The article as claimed in claim 1 , wherein the paint has ...

VISIBLE LIGHT AND INFRARED LIGHT TRANSMITTING OPTICAL COLORED GLASS, COMPOSITION THEREOF, AND PREPARING METHOD THEREOF

The present disclosure illustrates a composition of a visible light and infrared light transmitting optical colored glass. The chalcogenide semiconductor compound CuZnSnSor CuZnSnSeis added in the silicate glass system composition, to adjust color and the optical property of the glass. The glass made of this composition has a characteristic of the visible light and infrared light transmitting in a wavelength of range 400 nm to 1200 nm. 1. A visible light and infrared light transmitting optical colored glass composition , comprising:{'sub': '2', 'SiO: 40-70 wt %;'}{'sub': '3', 'B2O: 0-10 wt %;'}{'sub': '2', 'NaO: 0-30 wt %;'}{'sub': '2', 'KO: 0-30 wt %;'}CaO: 0-30 wt %;MgO: 0-30 wt %;SrO: 0-30 wt %;BaO: 0-30 wt %;ZnO: 10-30 wt %; and{'sub': 2', '4, 'ZnS: 0.5-5 wt % and CuZnSnS: 0.1-5 wt %.'}2. The composition according to claim 1 , wherein the ZnS and the CuZnSnScan be substituted by ZnSe and CuZnSnSe.3. The composition according to claim 1 , wherein the NaO and KO can be substituted by LiO claim 1 , RbO claim 1 , or CsO.4. The composition according to claim 1 , wherein SiOis 45.72 wt % claim 1 , BOis 6.03 wt % claim 1 , NaO is 5.45 wt % claim 1 , KO is 19.52 wt % claim 1 , CaO is 1.11 wt % claim 1 , MgO is 0.61 wt % claim 1 , SrO is 0.65 wt % claim 1 , BaO is 2.25 wt % claim 1 , ZnO+ZnS is 17.5 wt % claim 1 , and CuZnSnSis 1.16 wt %.5. The composition according to claim 1 , wherein SiOis 45.72 wt % claim 1 , BOis 6.03 wt % claim 1 , NaO is 5.45 wt % claim 1 , KO is 19.52 wt % claim 1 , CaO is 1.11 wt % claim 1 , MgO is 0.61 wt % claim 1 , SrO is 0.65 wt % claim 1 , BaO is 2.25 wt % claim 1 , ZnO+ZnSe is 17.5 wt % claim 1 , and CuZnSnSe1.16 wt %.6. A glass made of composition according to claim 1 , the glass having characteristic of transmitting of visible light and infrared light in wavelength of range 400 nm to 1200 nm.7. The glass according to claim 6 , wherein transmission rate of visible light and infrared light in wavelength of range 400 nm to 1200 nm is 90%.8. ...

LAMINATED GLAZING

A laminated glazing includes a first sheet of a colored glass and a second sheet of a clear glass which are joined together by a lamination interlayer, the first sheet having a thickness el ranging from 1.5 to 2.5 mm, the second sheet having a thickness e2 ranging from 0.4 to 1.9 mm, the ratio R=e2/e1being at most 0.40 mm, the glazing having a light transmission of at least 70% and a direct solar transmission of at most 55%, the colored glass having a chemical composition including a weight content of total iron, expressed in the form FeO, ranging from 1.1 to 2.0%, with a redox ratio, defined as the ratio between the weight content of ferrous iron, expressed in the form FeO, and the weight content of total iron, expressed in the form FeO, ranging from 0.23 to 0.32. 1. A laminated glazing comprising a first sheet of a colored glass and a second sheet of a clear glass which are joined together by means of a lamination interlayer , said first sheet having a thickness e1 ranging from 1.5 to 2.5 mm , said second sheet having a thickness e2 ranging from 0.4 to 1.9 mm , the ratio R=e2/e1being at most 0.40 mm , said glazing having a light transmission of at least 70% and a direct solar transmission of at most 55% , said colored glass having a chemical composition comprising a weight content of total iron , expressed in the form FeO , ranging from 1.1 to 2.0% , with a redox ratio , defined as the ratio between the weight content of ferrous iron , expressed in the form FeO , and the weight content of total iron , expressed in the form FeO , ranging from 0.23 to 0.32.2. The laminated glazing as claimed in claim 1 , wherein the thickness e2 is within a range of from 0.5 to 1.7 mm.3. The laminated glazing as claimed in claim 1 , wherein the ratio R is at most 0.35 mm.4. The laminated glazing as claimed in claim 1 , wherein the first sheet consists of a soda-lime-silica glass.5. The laminated glazing as claimed in claim 1 , wherein the first glass sheet is made of glass that is ...

Process and Apparatus for Coloring Glass Containers

A process and an apparatus for imparting coloration to a glass container having a strikable glass container composition. One or more portions of the glass container are selectively and locally exposed to a temperature at or above a glass container striking temperature to affect a color change in the one or more portions of the glass container. The coloration process may be carried out by passing the glass container through an interior of an apparatus having a heating system configured to locally heat a first region within the interior to a temperature at or above a glass container striking temperature and a cooling system to locally cool a second region within the interior to a temperature below the glass container striking temperature. 114.-. (canceled)15. An apparatus for heat-treating a glass container that includes:an interior;a support to support a glass container within said interior;a heating system to locally heat a first region within said interior to a temperature at or above a predetermined temperature; anda cooling system to locally cool a second region within said interior to a temperature below said predetermined temperature;wherein, when a glass container is passed through said interior, a first portion of the glass container is selectively and locally heated to a temperature at or above said predetermined temperature and, at the same time, a second portion of the glass container is selectively and locally maintained at a temperature below said predetermined temperature.16. The apparatus set forth in wherein said heating system is configured to locally heat an upper region of said interior and said cooling system is configured to locally cool a lower region of said interior such that a temperature differential is established between said upper and lower regions of said interior.17. The apparatus set forth in wherein said cooling system includes a plenum that extends across said interior.18. The apparatus set forth in including a means for moving said ...

WHITE, OPAQUE, ß-SPODUMENE GLASS-CERAMIC ARTICLES WITH TUNABLE COLOR AND METHODS FOR MAKING THE SAME

Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit β-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 62-75 SiO; 10.5-18 AlO; 5-14 LiO; 2-12 BO; and 0.4-2 FeO. Additionally, these glasses and glass-ceramics can exhibit the following criteria: 1. A process for making a glass-ceramic comprising: [{'sub': '2', 'i) SiOin a range from about 62 to about 75,'}, {'sub': 2', '3, 'ii) AlOin a range from about 10 to about 18,'}], 'a) heating a crystallizable glass at a rate in a range from about 1° C./min to about 10° C./min to a nucleation temperature in a range from about 700° C. and 810° C., wherein, in mole %, the crystallizable glass comprises{'sub': '2', 'iii) LiO in a range from about 5 to about 14,'}{'sub': 2', '3, 'iv) BOin a range from about 2 to about 12, and'}{'sub': 2', '3', '2', '2', '2', '3', '2', '3', '2', '3', '2', '3', '2', '5, 'v) a metal oxide selected from group consisting of CoO, CrO, CuO, MnO, SbO, InO, BiO, NiO, VO, TaO, and combinations thereof in a range from about 0.01 to about 2, and'}b) maintaining the crystallizable glass at the nucleation temperature to produce a nucleated crystallizable glass;c) heating the nucleated crystallizable glass at a rate in a range from about 1° C./min to about 10° C./min to a crystallization temperature of in a range from about 850° C. to about 1200° C.; andd) maintaining the nucleated crystallizable glass at the crystallization temperature to produce a glass-ceramic having β-spodumene as a predominant crystalline phase.2. The process of claim 1 , wherein the glass-ceramic article comprises a color presented in CIELAB color space coordinates for an observer angle of 10° and a CIE illuminant F02 determined from reflectance spectra measurements using a spectrophotometer with specular reflectance included comprising:a) CIE a* in a range from about −0.5 to about 0.5;b) CIE b* in a range from ...

BETA-QUARTZ GLASS-CERAMICS WITH A CONTROLLED TRANSMISSION CURVE AND A HIGH CONTENT OF IRON OXIDE AND OF TIN OXIDE; ARTICLES IN SAID GLASS-CERAMICS, PRECURSOR GLASSES

β-quartz lithium aluminosilicate (LAS) glass-ceramics contain neither arsenic oxide nor antimony oxide, are fined with tin oxide and include vanadium oxide, chromium oxide and a high iron oxide content (>1500 ppm), and have a controlled transmission curve. Articles such as cook-tops can be made from such glass-ceramics. 2. The glass-ceramic according to claim 1 , comprising{'sub': '2', 'SnO0.32-0.48.'}3. The glass-ceramic according to claim 1 , comprising{'sub': 2', '3, 'FeO0.16-0.25.'}4. The glass-ceramic according to claim 1 , comprising less than 200 ppm CoO.5. The glass-ceramic according to claim 1 , the composition of which is free of F and of Br claim 1 , except for inevitable traces.7. The glass-ceramic according to claim 6 , the composition of which comprises at least 98% by weight of SnO claim 6 , VO claim 6 , CrO claim 6 , FeO claim 6 , SiO claim 6 , AlO claim 6 , LiO claim 6 , MgO claim 6 , ZnO claim 6 , TiO claim 6 , ZrO claim 6 , BaO claim 6 , SrO claim 6 , CaO claim 6 , NaO claim 6 , KO claim 6 , POand BO.8. An article comprising the glass-ceramic according to .9. The article according to claim 8 , selected from the group consisting of a cooktop claim 8 , a cooking utensil and a microwave oven tray.10. A lithium aluminosilicate glass claim 8 , having a composition expressed as percentages by weight of oxides claim 8 , comprising:{'sub': '2', 'SnO0.3-0.6;'}{'sub': 2', '5, 'VO0.02-0.15;'}{'sub': 2', '3, 'CrO0.01-0.04;'}{'sub': 2', '3, 'FeO>0.15-0.32;'}{'sub': 2', '3', '2', '3, 'AsO+SbO<0.1; and'}{'sub': 2', '3', '2', '5', '2, 'FeO/(VO*SnO) 5-15.'}11. A method for forming an article according to claim 8 , successively comprising:{'sub': '2', 'melting a load of vitrifiable raw materials, said load containing SnOas a fining agent;'}fining of the obtained molten glass;cooling the fined molten glass and simultaneously shaping it to a desired shape for the article; andheat treating the shaped glass to transform the glass into a glass-ceramic. This application ...

LOW SPARKLE GLASS SHEET AND PROCESS OF MAKING IT

A glass sheet comprising at least one etched surface having a surface roughness defined, when measured on an evaluation length of 2 mm and with a Gaussian filter of which the cut-off wavelength is 0.8 mm, by 0.02≤Ra≤0.4 microns and 5≤RSm≤30 microns. The glass sheet has excellent anti-sparkling properties together with an anti-glare effect. The texturing of the glass sheet may obtained by the process of carrying the glass sheet horizontally on a conveyor, pre-treating the surface to remove defects that may prevent subsequent uniform etching, etching the surface with aqueous solution containing hydrofluoric acid spread in an uniform layer over the surface of the sheet, maintaining the etching solution until the etching is ended, and drying the etched sheet. 1. A process to produce a substantially flat glass sheet comprising at least one etched surface having a texture with a roughness defined , when measured on an evaluation length of 12 mm and with a Gaussian filter of which 5 the cut-off wavelength is 0.8 mm , by:0.01≤Ra≤0.4 microns,5≤RSm≤30 microns,said texture of the etched surface being obtained by the process comprising:carrying the glass sheet horizontally on a conveyor; pre-treating the surface to remove any defect that may prevent subsequent uniform etching;etching the surface with aqueous solution containing hydrofluoric acid spread in an uniform layer over the surface of the sheet;maintaining the etching solution until the etching is ended by washing it out; anddrying the etched sheet.2. The process according to claim 1 , wherein pre-treating is ended by washing of the glass with an aqueous solution possibly containing a tension-active component claim 1 , followed by intensive drying3. The process according to claim 1 , wherein application of the etching solution is spread simultaneously over the whole width of the glass sheet transversely to its motion.4. The process according to claim 3 , wherein the etching solution is poured from an overflow lip in an ...

HIGH PERFORMANCE FIBERGLASS COMPOSITION

A glass composition is provided that includes about 55.0 to 60.4% by weight SiO, about 19.0 to 25.0% by weight AlO, about 8.0 to 15.0% by weight MgO, about 7 to 12.0% by weight CaO, less than 0.5% by weight LiO, 0.0 to about 1.0% by weight NaO, and 0 to about 1.5% by weight TiO. The glass composition has a fiberizing temperature of no greater than about 2,500° F. Glass fibers formed from the inventive composition may be used in applications that require high stiffness, and low weight. Such applications include woven fabrics for use in forming wind blades and aerospace structures. 1. A glass composition comprising:{'sub': '2', 'SiOin an amount from 55.0 to 65.0% by weight;'}{'sub': 2', '3, 'AlOin an amount from 19.0 to 25.0% by weight;'}CaO in an amount from 7 to 12.0% by weight;MgO in an amount from 8.0 to 15.0% by weight;{'sub': '2', 'NaO in an amount from 0 to 1.0% by weight;'}{'sub': '2', 'LiO in an amount less than 0.5% by weight; and'}{'sub': 2', '2', '3', '2', '2', '3', '2', '3, 'TiOin an amount from 0.0 to 1.5% by weight, expressed as percentages by weight based on the weight of the entire composition, wherein the weight percent ratio of AlO/MgO is less than 2.0, wherein the combined amounts of SiO, AlO, MgO, and CaO is at least 98% by weight and less than 99.5% by weight, wherein said glass composition is essentially free of BO, and wherein said glass composition has a fiberizing temperature no greater than 2,500° F.'}2. The glass composition according to claim 1 , wherein the combined amounts of MgO and CaO is greater than 20% by weight.3. The glass composition according to claim 1 , wherein the combined amounts of MgO and CaO is less than 22% by weight.4. The glass composition according to claim 1 , wherein said composition comprises 19.5 to 21% by weight AlO.5. The glass composition according to claim 1 , wherein the weight percent ratio of AlO/MgO is no greater than 1.8.6. The glass composition according to claim 1 , wherein said composition comprises ...

HIGH STRAIN POINT GLASS

The present invention relates to a glass composition that includes: 57 to 75 percent by weight of SiO; 3 to 11 percent by weight of AlO; 6 to 11 percent by weight of NaO; 16 to 21 percent by weight of CaO; 0.01 to 0.1 percent by weight of LiO; and less than 0.05 percent by weight of KO. Each percent by weight is based on total weight of the glass composition. Glass products are also provided that have a bulk glass composition as described above. The glass products, such as flat glass products and glass substrates, have a strain point of at least 590° C. and a thermal expansion of at least 7.4 ppm/° C. The present invention also relates to magnetic recording articles and photovoltaic cells that include a glass substrate that has a bulk glass composition as described above. 1. A glass composition comprising:{'sub': '2', 'SiO57 to 76 percent by weight;'}{'sub': 2', '3, 'AlO3 to 11 percent by weight;'}{'sub': '2', 'NaO 6 to 11 percent by weight;'}CaO 16 to 21 percent by weight;{'sub': '2', 'LiO 0.01 to 0.1 percent by weight; and'}{'sub': '2', 'KO less than 0.05 percent by weight;'}wherein each percent by weight is based on total weight of said glass composition.2. The glass composition of wherein claim 1 , AlOis present in an amount of 4 to 10 percent by weight.3. The glass composition of wherein claim 1 , AlOis present in an amount of 4.6 to 9.5 percent by weight.4. The glass composition of wherein claim 1 , NaO is present in an amount of from 7 to 10 percent by weight.5. The glass composition of wherein claim 1 , NaO is present in an amount of from 7.5 to 9.5 percent by weight.6. The glass composition of wherein claim 1 , CaO is present in an amount of from 17 to 20 percent by weight.7. The glass composition of wherein claim 1 , CaO is present in an amount of from 17 to 19 percent by weight.8. The glass composition of wherein claim 1 ,{'sub': 2', '3, 'AlOis present in an amount of 4 to 10 percent by weight,'}{'sub': '2', 'NaO is present in an amount of from 7 to 10 ...

MINERAL WOOL

A method of making mineral wool fibers comprising: 115.-. (canceled)16. A method of making mineral wool fibers comprising:{'sub': '2', '30 to 55 wt % SiO, and'}{'sub': 2', '3, '10 to 30 wt % AlO, and'}{'sub': 2', '3, '4 to 14 wt % total iron expressed as FeO, and'}a combination selected from:{'sub': 2', '2, 'a) 20 to 35 wt % of the combination of CaO and MgO; and less than 8 wt % of the combination of NaO and KO; and'}{'sub': 2', '2, 'b) 8 to 23 wt % of the combination of CaO and MgO; and 4 to 24 wt % of the combination of NaO and KO;'}the method comprising:introducing mineral batch materials in to a melter, melting the mineral batch materials to provide a melt and fiberizing the melt to form the mineral wool fibers,wherein the mineral batch materials introduced in to the melter comprise a first batch material comprising:{'sub': '2', '52 to 68 wt % SiO, and'}{'sub': 2', '3, '12 to 30 wt % AlO, and'}0 to 25 wt % CaO, and0 to 12 wt % MgO, and{'sub': 2', '3, '0 to 10 wt % BO, and'}{'sub': 2', '2', '2, '0 to 2 wt % of the combination of LiO+NaO+KO, and'}{'sub': '2', '0 to 1.5 wt % TiO, and'}{'sub': 2', '3, '0.05 to 1 wt % total iron expressed as FeO, and'}0 to 1 wt % fluoride.17. The method of wherein the first batch material comprises 52 to 62 wt % SiO.18. The method of wherein the first batch material comprises 12 to 16 wt % AlO.19. The method of wherein the first batch material comprises 16 to 25 wt % CaO.20. The method of wherein the first batch material comprises 0 to 5 wt % MgO.21. The method of wherein the first batch material comprises 0 to 2 wt % BO.22. The method of wherein the first batch material comprises:{'sub': '2', '52 to 62 wt % SiO, and'}{'sub': 2', '3, '12 to 16 wt % AlO, and'}16 to 25 wt % CaO, and0 to 5 wt % MgO, and{'sub': 2', '3, '0 to 10 wt % BO, and'}{'sub': 2', '2', '2, '0 to 2 wt % of the combination of LiO+NaO+KO, and'}{'sub': '2', '0 to 1.5 wt % TiO, and'}{'sub': 2', '3, '0.05 to 1 wt % total iron expressed as FeO, and'}0 to 1 wt % fluoride. ...

Sheet of glass with high energy transmission

The invention concerns an ultra-clear glass sheet, i.e. a sheet of glass with high energy transmission, that can be used, in particular, in the solar and architectural fields. More specifically, the invention concerns a sheet of glass having a composition which comprises, in an amount expressed as percentages of the total weight of the glass: SiO 2 60-78%; Al 2 O 3 0-10%; B 2 O 3 0-5%; CaO 0-15%; MgO 0-10%; Na 2 O 5-20%; K 2 O 0-10%; BaO 0-5%; total iron (expressed in the form of Fe 2 O 3 ) 0.002-0.03%, the composition comprises a copper content of 0.001 to 0.15% by weight relative to the total weight of the glass, the copper content being expressed in the form of Cu as a percentage by weight relative to the total weight of the glass.

BODY, ESPECIALLY LAMP BODY, AND METHOD FOR PRODUCING A HERMETIC SEAL

A body, such as a lamp body, includes a tubular element. At least one conductor is introduced into the tubular element and a glass material surrounds the conductor. The glass material forms a seal between the tubular element and the conductor. The glass material comprises a sintered glass, such as a sintered glass ring, and may completely surround the conductor. 1. A body , comprising:a tubular element made of a glass or a glass-ceramic material;at least one conductor introduced into the tubular element; andat least one further glass material surrounding the at least one conductor and connected to the tubular element, the at least one further glass material forming a hermetic seal between the tubular element and the at least one conductor and the at least one further glass material comprising a sintered glass which completely surrounds the at least one conductor after being fused on and hermetically seals it with respect to the tubular element.2. The body of claim 1 , wherein the sintered glass is a sintered glass ring.3. The body of claim 1 , wherein the at least one further glass material has a first coefficient of expansion αand the tubular element comprises a glass or a glass-ceramic material having a second coefficient of expansion αand the at least one conductor has a third coefficient of expansion αand the value of the first coefficient of expansion αlies between the value of the second coefficient of expansion αand the third coefficient of expansion α.4. The body of claim 1 , wherein the at least one further glass material comprises a plurality of further glass materials having stepped coefficients of expansion αto αand the tubular element comprises a glass or a glass-ceramic material having a second coefficient of expansion αand the conductor has a third coefficient of expansion αand the values of the stepped coefficients of expansion αto αlie between the value of the second coefficient of expansion αand the third coefficient of expansion α.5. The body of ...