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公开(公告)号：US20150087494A1
公开(公告)日：2015-03-26
申请号：US14560547
申请日：2014-12-04
Applicant: ASAHI GLASS COMPANY, LIMITED
Inventor： Hirofumi TOKUNAGA , Akio Koike , Manabu Nishizawa , Tomoyuki Tsujimura
Abstract: The present invention relates to an alkali-free glass having a strain point of 710° C. or higher, an average thermal expansion coefficient at from 50 to 350° C. of from 30×10−7 to 43×10−7/° C., a temperature T2 at which glass viscosity reaches 102 dPa·s of 1,710° C. or lower, and a temperature T4 at which the glass viscosity reaches 104 dPa·s of 1,320° C. or lower, containing, indicated by % by mass on the basis of oxides: SiO2 58.5 to 67.5, Al2O3 18 to 24, B2O3 0 to 1.7, MgO 6.0 to 8.5, CaO 3.0 to 8.5, SrO 0.5 to 7.5, BaO 0 to 2.5, and ZrO2 0 to 4.0, containing 0 to 0.35% by mass of Cl, 0.01 to 0.15% by mass of F, and 0.01 to 0.3% by mass of SnO2, and having a β-OH value of the glass of from 0.15 to 0.60 mm−1.
Abstract translation: 本发明涉及应变点为710℃以上，50〜350℃的平均热膨胀系数为30×10-7〜43×10-7 /°的无碱玻璃 ℃，玻璃粘度达到102dPa·s的温度T2为1710℃以下，玻璃粘度达到104dPa·s的温度T4为1320℃以下，含有％ 基于氧化物：SiO 2 58.5〜67.5，Al 2 O 3 18〜24，B 2 O 3〜1.7，MgO 6.0〜8.5，CaO 3.0〜8.5，SrO 0.5〜7.5，BaO 0〜2.5，ZrO 2 0〜4.0， 0〜0.35质量％的Cl，0.01〜0.15质量％的F和0.01〜0.3质量％的SnO 2，并且玻璃的-OH值为0.15〜0.60mm -1。
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公开(公告)号：US20170260085A1
公开(公告)日：2017-09-14
申请号：US15605217
申请日：2017-05-25
Applicant: ASAHI GLASS COMPANY, LIMITED
Inventor： Hirofumi TOKUNAGA , Akio KOIKE , Masaya KUNIGITA
Abstract: The present invention relates to an alkali-free glass substrate, having a strain point of 680° C. or higher, a Young's modulus of 78 GPa or greater, an UV transmittance at a wavelength of 300 nm of from 40% to 85% in terms of 0.5 mm thickness, an in-plane distribution of the UV transmittance at a wavelength of 300 nm in a G6-sized substrate of 1% or less in terms of 0.5 mm thickness, an average cooling rate around the glass transition point obtained according to a rate cooling method of 400° C./min or lower, and an in-plane distribution of the average cooling rate of 40° C./min or less.
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公开(公告)号：US20150299028A1
公开(公告)日：2015-10-22
申请号：US14648779
申请日：2013-12-02
Applicant: ASAHI GLASS COMPANY, LIMITED
Inventor： Manabu NISHIZAWA , Akio KOIKE , Hirofumi TOKUNAGA
IPC: C03C3/091
CPC classification number: C03C3/091
Abstract: The present invention relates to a non-alkali glass substrate, having a strain point of 685° C. or higher and 750° C. or lower, an average thermal expansion coefficient at 50 to 350° C. of from 35×10−7 to 43×10−7/° C., a specific gravity of from 2.50 to 2.80, a photoelastic constant of 25 nm/MPa/cm or more and less than 29 nm/MPa/cm, and a temperature (T4) at which viscosity reaches 104 dPa·s of 1,250° C. or higher and lower than 1,350° C., and having a prescribed composition.
Abstract translation: 本发明涉及应变点为685℃以上且750℃以下的无碱玻璃基板，50〜350℃的平均热膨胀系数为35×10 -7 至43×10 -7 /℃，比重为2.50〜2.80，光弹性常数为25nm / MPa / cm以上且小于29nm / MPa / cm，温度（T4）为 粘度达到104dPa·s为1,250℃以上且低于1350℃，具有规定的组成。
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公开(公告)号：US20150045203A1
公开(公告)日：2015-02-12
申请号：US14524880
申请日：2014-10-27
Applicant: ASAHI GLASS COMPANY, LIMITED
Inventor： Hirofumi TOKUNAGA , Tomoyuki TSUJIMURA , Manabu NISHIZAWA , Akio KOIKE
Abstract: The present invention relates to a non-alkali glass having a strain point of from 710° C. to lower than 725° C., an average thermal expansion coefficient at from 50 to 300° C. of from 30×107 to 43×10−7/° C., a temperature T2 at which glass viscosity reaches 102dPa.s of 1710° C. or lower, a temperature T4 at which the glass viscosity reaches 104 dPd.s of 1320° C. or lower, and containing, indicated by mol % on the basis of oxides, SiO2 66 to 70, Al2O3 12 to 14, B2O3 exceeding 0 to 1.5, MgO exceeding 9.5 to 13 (or 5 to 9.5), CaO 4 to 9 (or 4 to 11), SrO 0.5 to 4.5, BaO 0 to 0.5 and ZrO 0 to 2.
Abstract translation: 本发明涉及应变点为710℃以上且低于725℃，50〜300℃的平均热膨胀系数为30×107〜43×10的非碱玻璃 -7℃，玻璃粘度达到102dPa.s为1710℃以下的温度T2，玻璃粘度达到104dPd.s的温度T4为1320℃以下， 基于氧化物的摩尔％表示，SiO 2 66〜70，Al 2 O 3 12〜14，B 2 O 3超过0〜1.5，MgO超过9.5〜13（或5〜9.5），CaO 4〜9（或4〜11），SrO 0.5〜4.5，BaO 0〜0.5，ZrO 0〜2。
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公开(公告)号：US20170267572A1
公开(公告)日：2017-09-21
申请号：US15458519
申请日：2017-03-14
Applicant: ASAHI GLASS COMPANY, LIMITED
Inventor： Tetsushi TAKIGUCHI , Shunji INOUE , Kazutaka ONO , Hirofumi TOKUNAGA , Jun AKIYAMA , Yasumasa KATO , Taketoshi TANIGUCHI
Abstract: The present invention relates to an alkali-free glass substrate, in which when two arbitrary sites in one main surface thereof are selected, an absolute value of a difference between a thermal shrinkage ratio in an arbitrary direction at one site and a thermal shrinkage ratio in a direction orthogonal to the arbitrary direction at another site is 2 ppm or less, provided that the thermal shrinkage ratio is calculated by measuring a deformation amount in a measuring direction of the glass substrate between before and after a heat treatment of raising a temperature from normal temperature to 600° C. at 100° C./hour, holding the glass substrate at 600° C. for 80 minutes, and lowering the temperature from 600° C. to normal temperature at 100° C./hour.
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Patent Agency Ranking
6.发明申请ALKALI-FREE FLOAT SHEET GLASS, AND METHOD FOR PRODUCING ALKALI-FREE FLOAT SHEET GLASS 审中-公开无碱玻璃板玻璃和生产无碱玻璃板玻璃的方法公开(公告)号：US20170066682A1
公开(公告)日：2017-03-09
申请号：US15357262
申请日：2016-11-21
Applicant: ASAHI GLASS COMPANY, LIMITED
Inventor： Shiro TANII , Kazutaka ONO , Hirofumi TOKUNAGA , Yosuke INAI , Daisuke KOBAYASHI
Abstract: The present invention relates to an alkali-free float sheet glass having a glass transition point of from 730 to 850° C. and a temperature T4 of from 1220 to 1350° C., and containing, indicated by mass % on the basis of oxides: SiO2: 57 to 65%, Al2O3: 14 to 23%, B2O3: 0 to 5.5%, MgO: 1 to 8.5%, CaO: 3 to 12%, SrO: 0 to 10%, and BaO: 0 to 5%, satisfying MgO+CaO+SrO+BaO of from 12 to 23%, containing F in an amount of from 0.1 to 0.35 mass %, containing Cu in an amount of from 0.3 to 3 mass ppm, containing Cl in an amount of from 0 to 0.05 mass %, and satisfying a ratio f1/f2 of from 0.05 to 0.5.
Abstract translation: 本发明涉及玻璃化转变温度为730〜850℃，温度T4为1220〜1350℃的碱性浮法玻璃，其含量以氧化物的质量％表示 ：SiO 2：57〜65％，Al 2 O 3：14〜23％，B 2 O 3：0〜5.5％，MgO：1〜8.5％，CaO：3〜12％，SrO：0〜10％，BaO：0〜5％ 满足12〜23％的MgO + CaO + SrO + BaO，含有0.1〜0.35质量％的F，含有0.3〜3质量ppm的Cu，含有0〜 至0.05质量％，并且满足0.05 / 0.5的比率f1 / f2。
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公开(公告)号：US20160068427A1
公开(公告)日：2016-03-10
申请号：US14943459
申请日：2015-11-17
Applicant: ASAHI GLASS COMPANY, LIMITED
Inventor： Hirofumi TOKUNAGA , Tomoyuki TSUJIMURA , Manabu NISHIZAWA , Akio KOIKE
Abstract: The present invention relates to a non-alkali glass having a strain point of from 710° C. to lower than 725° C., an average thermal expansion coefficient at from 50 to 300° C. of from 30×10−7 to 43×10−7/° C., a temperature T2 at which glass viscosity reaches 102 dPa·s of 1710° C. or lower, a temperature T4 at which the glass viscosity reaches 104 dPa·s of 1320° C. or lower, and containing, indicated by mol % on the basis of oxides, SiO2 66 to 70, Al2O3 12 to 14, B2O3 exceeding 0 to 1.5, MgO exceeding 9.5 to 13 (or 5 to 9.5), CaO 4 to 9 (or 4 to 11), SrO 0.5 to 4.5, BaO 0 to 0.5 and ZrO 0 to 2.
Abstract translation: 本发明涉及应变点为710℃以上且低于725℃的无碱玻璃，50〜300℃的平均热膨胀系数为30×10 -7〜43 ×10-7 /℃，玻璃粘度达到102dPa·s的温度T2为1710℃以下，玻璃粘度达到104dPa·s的温度T4为1320℃以下， 以氧化物为基准的摩尔％表示，SiO 2 66〜70，Al 2 O 3 12〜14，B 2 O 3超过0〜1.5，MgO超过9.5〜13（或5〜9.5），CaO 4〜9（或4〜11） ），SrO 0.5〜4.5，BaO 0〜0.5，ZrO 0〜2。
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8.发明申请ALKALI-FREE GLASS SUBSTRATE AND METHOD FOR REDUCING THICKNESS OF ALKALI-FREE GLASS SUBSTRATE 审中-公开无碱玻璃基材和减少无碱玻璃基材厚度的方法公开(公告)号：US20150072130A1
公开(公告)日：2015-03-12
申请号：US14541484
申请日：2014-11-14
Applicant: ASAHI GLASS COMPANY, LIMITED
Inventor： Hirofumi TOKUNAGA , Tomoyuki TSUJIMURA , Manabu NISHIZAWA , Akio KOIKE
Abstract: The present invention relates to an alkali-free glass substrate with a thickness of 0.4 mm or less, which has been reduced in thickness by 5 μm or more by a hydrofluoric acid (HF) etching treatment, in which the alkali-free glass substrate contains an alkali-free glass described below, and the alkali-free glass substrate after reduced in thickness has a specific modulus of 32 MNm/kg or more and a photoelastic constant of 31 nm/MPa/cm or less, the alkali-free glass having a strain point of 710° C. or higher, an average thermal expansion coefficient at 50 to 350° C. of from 30×10−7to 43×10−7/° C., a temperature T2 at which a glass viscosity reaches 102 dPa·s of 1710° C. or lower, a temperature T4 at which the glass viscosity reaches 104 dPa·s of 1320° C. or lower.
Abstract translation: 本发明涉及厚度为0.4mm以下的无碱玻璃基板，其通过氢氟酸（HF）蚀刻处理将厚度减小了5μm以上，其中无碱玻璃基板含有 下述的无碱玻璃，厚度减薄后的无碱玻璃基板的比模量为32MNm / kg以上，光弹性常数为31nm / MPa / cm以下，无碱玻璃具有 应变点为710℃以上，50〜350℃的平均热膨胀系数为30×10 -7〜43×10 -7 /℃，玻璃粘度达到102的温度T2 dPa·s为1710℃以下，玻璃粘度达到104dPa·s的温度T4为1320℃以下。
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公开(公告)号：US20150045201A1
公开(公告)日：2015-02-12
申请号：US14524954
申请日：2014-10-27
Applicant: ASAHI GLASS COMPANY, LIMITED
Inventor： Hirofumi TOKUNAGA , Shingo Urata , Akio Koike , Manabu Nishizawa , Takashi Enomoto , Tomoyuki Tsujimura
Abstract: The present invention relates to a non-alkali glass having a strain point of 710° C. or higher, an average thermal expansion coefficient at from 50 to 300° C. of from 30×10−7 to 43×10−7/° C., a temperature T2 at which glass viscosity reaches 102 dPa·s of 1,710° C. or lower, a temperature T4 at which the glass viscosity reaches 104 dPa·s of 1,320° C. or lower, containing, indicated by percentage by mass on the basis of oxides, SiO2 58.5 to 67.5, Al2O3 18 to 24, B2O3 0 to 1.7, MgO 6.0 to 8.5, CaO 3.0 to 8.5, SrO 0.5 to 7.5, BaO 0 to 2.5 and ZrO2 0 to 4.0, containing Cl in an amount of from 0.15 to 0.35% by mass, F in an amount of from 0.01 to 0.15% by mass and SO3 in an amount of from 1 to 25 ppm and having a β-OH value of the glass of from 0.15 to 0.45 mm−1, in which (MgO/40.3)+(CaO/56.1)+(SrO/103.6)+(BaO/153.3) is from 0.27 to 0.35, (MgO/40.3)/((MgO/40.3)+(CaO/56.1)+(SrO/103.6)+(BaO/153.3)) is 0.40 or more, (MgO/40.3)/((MgO/40.3)+(CaO/56.1)) is 0.40 or more, and (MgO/40.3)/((MgO/40.3)+(SrO/103.6)) is 0.60 or more.
Abstract translation: 本发明涉及应变点为710℃以上，50〜300℃的平均热膨胀系数为30×10 -7〜43×10 -7 /°的无碱玻璃 玻璃粘度达到102dPa·s的温度T2为1710℃以下，玻璃粘度达到104dPa·s的温度T4为1320℃以下，含有以百分比表示的温度 基于氧化物，SiO 2 58.5〜67.5，Al 2 O 3 18〜24，B 2 O 3〜1.7，MgO 6.0〜8.5，CaO 3.0〜8.5，SrO 0.5〜7.5，BaO 0〜2.5，ZrO 2 0〜4.0，含有Cl 0.15〜0.35质量％的F，0.01〜0.15质量％的F，1〜25ppm的SO 3，玻璃的-OH值为0.15〜0.45 （MgO / 40.3）+（CaO / 56.1）+（SrO / 103.6）+（BaO / 153.3）为0.27〜0.35（MgO / 40.3）/（（MgO / 40.3） / 56.1)+(SrO/103.6)+(BaO/153.3））为0.40以上，（MgO / 40.3）/（（MgO / 40.3）+（CaO / 56.1））为0.40以上，（MgO /40.3)/((MgO/40.3)+(SrO/103.6））为0.60以上。
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公开(公告)号：US20140366581A1
公开(公告)日：2014-12-18
申请号：US14470163
申请日：2014-08-27
Applicant: ASAHI GLASS COMPANY, LIMITED
Inventor： Hirofumi TOKUNAGA , Akio Koike , Manabu Nishizawa , Tomoyuki Tsujimura
CPC classification number: C03B5/027 , C03B5/235 , C03B5/43 , C03C3/087 , C03C3/091 , C04B35/484 , C04B2235/3201 , C04B2235/3217 , C04B2235/3232 , C04B2235/3234 , C04B2235/3272 , C04B2235/3409 , C04B2235/3418 , C04B2235/36 , C04B2235/725 , Y02P40/57
Abstract: The present invention relates to a production method for a non-alkali glass, containing putting glass raw materials in a melting furnace, heating to a temperature of 1,350 to 1,750° C. to prepare a molten glass, and forming the molten glass into a sheet shape by float method, in which the heating in the melting furnace concurrently utilizes heating by combustion flame of burners and electrical heating of the molten glass by heating electrodes arranged so as to be dipped in the molten glass in the melting furnace, and in which when electrical resistivity at 1,350° C. of the molten glass is represented by Rg (Ωcm) and electrical resistivity at 1,350° C. of a refractory constituting the melting furnace is represented by Rb (Ωcm), the glass raw materials and the refractory are selected so as to achieve Rb>Rg.
Abstract translation: 本发明涉及一种无碱玻璃的制造方法，其特征在于，在熔融炉中含有玻璃原料，加热至1,350〜1750℃的温度，制备熔融玻璃，将熔融玻璃成型为片材 熔化炉中的加热同时利用燃烧器的燃烧火焰的加热和熔融玻璃的电加热，通过加热设置为熔化在熔融炉中的熔融玻璃中的电极，并且其中当 熔融玻璃的1350℃下的电阻率由Rg（＆OHgr; cm）表示，构成熔炉的耐火材料的1,350℃的电阻率由Rb（＆OHgr; cm）表示，玻璃原料和 选择耐火材料以达到Rb> Rg。
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