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1. 发明公开

EP2660213A1 NON-ALKALI GLASS, AND PROCESS FOR PRODUCTION OF NON-ALKALI GLASS 审中-公开
标题翻译： NICHTALKALISCHES GLAS UND VERFAHREN ZUR HERSTELLUNG DES NICHTALKALISCHEN GLASES
公开(公告)号：EP2660213A1
公开(公告)日：2013-11-06
申请号：EP11852770.4
申请日：2011-12-20
申请人： Asahi Glass Company, Limited
发明人： TSUJIMURA Tomoyuki , NISHIZAWA Manabu , KOIKE Akio
IPC分类号： C03C3/087 , C03C1/00 , C03C3/091 , C03C3/093 , G02B1/00 , G02F1/1333
CPC分类号： C03C3/091 , C03C3/087 , C03C3/093
摘要： The present invention relates to an alkali-free glass having a strain point of 735°C or higher, an average thermal expansion coefficient at from 50 to 350°C of from 30×10 -7 to 40×10 -7 /°C, a temperature T 2 at which a glass viscosity is 10 2 dPa·s of 1,710°C or lower, a temperature T 4 at which a glass viscosity is 10 4 dPa·s of 1,340°C or lower, and a devitrification temperature of 1,330°C or lower, the alkali-free glass including, in terms of mol% on the basis of oxides: SiO 2 66 to 69, Al 2 O 3 12 to 15, B 2 O 3 0 to 1.5, MgO 6 to 9.5, CaO 7 to 9, SrO 0.5 to 3, BaO 0 to 1, and ZrO 2 0 to 2, in which MgO+CaO+SrO+BaO is from 16 to 18.2, MgO/(MgO+CaO+SrO+BaO) is 0.35 or more, MgO/(MgO+CaO) is 0.40 or more and less than 0.52, and MgO/(MgO+SrO) is 0.45 or more.
摘要翻译：本发明涉及应变点为735℃以上，50〜350℃的平均热膨胀系数为30×10 -7〜40×10 -7 /℃的无碱玻璃，玻璃粘度为10 2 dPa·s为1710℃以下的温度T 2，玻璃粘度为10 4 dPa·s的温度T 4为1340℃以下，失透温度为1330℃ ℃以下的无碱玻璃，以氧化物：SiO 2 66〜69，Al 2 O 3 12〜15，B 2 O 3 0〜1.5，MgO 6〜9.5， CaO 7〜9，SrO 0.5〜3，BaO 0〜1，ZrO 2 0〜2，MgO + CaO + SrO + BaO为16〜18.2，MgO /（MgO + CaO + SrO + BaO）为0.35 以上，MgO /（MgO + CaO）为0.40以上且小于0.52，MgO /（MgO + SrO）为0.45以上。

2. 发明公开

EP2857366A1 ALKALI-FREE GLASS AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译：无碱玻璃及其制造方法
公开(公告)号：EP2857366A1
公开(公告)日：2015-04-08
申请号：EP13801109.3
申请日：2013-06-04
申请人： Asahi Glass Company, Limited
发明人： NISHIZAWA Manabu , TOKUNAGA Hirofumi , KOIKE Akio
IPC分类号： C03C3/091 , C03C3/093
CPC分类号： C03C3/093 , C03C3/091
摘要： The present invention relates to an alkali-free glass having a strain point of 680 to 735°C, an average thermal expansion coefficient at from 50 to 350°C of from 30×10 -7 to 43×10 -7 /°C, a temperature T 2 at which glass viscosity reaches 10 2 dPa·s of 1,710°C or lower, and a temperature T 4 at which the glass viscosity reaches 10 4 dPa·s of 1,310°C or lower, and containing, indicated by mol% on the basis of oxides, SiO 2 63 to 74, Al 2 O 3 11.5 to 16, B 2 O 3 exceeding 1.5 to 5, MgO 5.5 to 13, CaO 1.5 to 12, SrO 1.5 to 9, BaO 0 to 1, and ZrO 2 0 to 2, in which MgO+CaO+SrO+BaO is from 15.5 to 21, MgO/(MgO+CaO+SrO+BaO) is 0.35 or more, CaO/(MgO+CaO+SrO+BaO) is 0.50 or less, and SrO/(MgO+CaO+SrO+BaO) is 0.50 or less.
摘要翻译：本发明涉及应变点为680〜735℃，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时的温度T2为1710℃以下，玻璃粘度达到104dPa·s时的温度T4为1310℃以下，以摩尔％计含有的氧化物，SiO 2 63至74，Al 2 O 3 11.5至16，B 2 O 3超过1.5至5，MgO 5.5至13，CaO 1.5至12，SrO 1.5至9，BaO 0至1和ZrO 2 0至2，其中MgO + CaO + SrO + BaO为15.5〜21，MgO /（MgO + CaO + SrO + BaO）为0.35以上，CaO /（MgO + CaO + SrO + BaO）为0.50以下，SrO /（MgO + CaO + SrO + BaO）为0.50以下。

3. 发明公开

EP2774895A1 GLASS SUBSTRATE AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译： GLASSUBSTRAT UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP2774895A1
公开(公告)日：2014-09-10
申请号：EP12845956.7
申请日：2012-10-17
申请人： Asahi Glass Company, Limited
发明人： NISHIZAWA Manabu
IPC分类号： C03C3/085 , C03C3/087 , C03C3/091 , C03C3/093 , G02F1/1333
CPC分类号： C03C3/093 , C03C3/085 , C03C3/087 , C03C3/091
摘要： The present invention provides a glass substrate having a high glass transition temperature, in which a compaction (C) is small in heat treatment at low temperature (150 to 300°C). A glass substrate containing, in terms of mol% on the basis of the following oxides: from 60 to 79% of SiO 2 ; from 2.5 to 18% of Al 2 O 3 ; from 0 to 3% of B 2 O 3 ; from 1 to 15% of MgO; from 0 to 1% of CaO; from 0 to 1% of SrO; from 0 to 1% of BaO; from 0 to 1% of ZrO 2 ; from 7 to 15.5% of Na 2 O; from 0 to 3% of K 2 O; and from 0 to 2% of Li 2 O; wherein Na 2 O+K 2 O is from 7 to 15.5%, Na 2 O/(Na 2 O+K 2 O) is from 0.77 to 1, MgO+CaO+SrO+BaO is from 1 to 18%, MgO-0.5Al 2 O 3 is from 0 to 10, and MgO+0.5Al 2 O 3 is from 1 to 20, wherein the glass substrate has: a glass transition temperature of from 580 to 720°C; an average coefficient of thermal expansion within a range of from 50 to 350°C of from 65×10 -7 to 85×10 -7 /°C; a compaction (C) of 15 ppm or less; a glass surface devitrification temperature (T c ) of from 900 to 1,300°C; a glass internal devitrification temperature (T d ) of from 900 to 1,300°C; a temperature (T 4 ) at which a viscosity reaches 10 4 dPa·s of from 1,100 to 1,350°C; a relationship (T 4 -T c ) between the temperature (T 4 ) at which a viscosity reaches 10 4 dPa·s and the glass surface devitrification temperature (T c ) of from -50 to 350°C; and a relationship (T 4 -T d ) between the temperature (T 4 ) at which a viscosity reaches 10 4 dPa·s and the glass internal devitrification temperature (T d ) of from -50 to 350°C.
摘要翻译：本发明提供玻璃化转变温度高的玻璃基板，其中在低温（150〜300℃）的热处理中的压实度（C）小。基于以下氧化物的摩尔％为基准的玻璃基板：SiO 2的60〜79％ 2.5至18％的Al 2 O 3; 0〜3％的B 2 O 3; 1〜15％的MgO; 0〜1％的CaO; 0〜1％的SrO; 0〜1％的BaO; 0〜1％的ZrO 2; 7〜15.5％的Na 2 O; 0〜3％的K 2 O; 和0〜2％的Li 2 O; 其中Na 2 O + K 2 O为7〜15.5％，Na 2 O /（Na 2 O + K 2 O）为0.77〜1，MgO + CaO + SrO + BaO为1〜18％，MgO- 0.5Al 2 O 3为0〜10，MgO + 0.5Al 2 O 3为1〜20，玻璃基板的玻璃化转变温度为580〜720℃，在50〜350℃的范围内的平均热膨胀系数为65×10 -7〜85×10 -7 /℃; 压实度（C）为15ppm以下; 玻璃表面失透温度（T c）为900〜1300℃; 玻璃内部失透温度（T d）为900〜1300℃; 温度（T 4），粘度达到10 4 dPa·s为1,100〜1350℃; 粘度达到10 4 dPa·s的温度（T 4）与玻璃表面失透温度（T c）在-50〜350℃之间的关系（T 4 -T c）以及在粘度达到10 4 dPa·s的温度（T 4）和-50至350℃的玻璃内部失透温度（T d）之间的关系（T 4 -T d）。

4. 发明公开

EP2650262A1 ALKALI FREE GLASS AND METHOD FOR PRODUCING ALKALI FREE GLASS 审中-公开
标题翻译： ALKALIFREIES GLAS UND VERFAHREN ZUR HERSTELLUNG VON ALKALIFREIEM GLAS
公开(公告)号：EP2650262A1
公开(公告)日：2013-10-16
申请号：EP11847758.7
申请日：2011-12-02
申请人： Asahi Glass Company, Limited
发明人： TSUJIMURA Tomoyuki , NISHIZAWA Manabu , KOIKE Akio
IPC分类号： C03C3/087 , C03C1/00 , C03C3/091 , C03C3/093
CPC分类号： C03C3/091 , C03C3/087
摘要： The present invention relates to an alkali-free glass having a strain point of 725°C or higher, an average thermal expansion coefficient at from 50 to 300°C of from 30×10 -7 to 40×10 -7 /°C, a temperature T 2 at which a glass viscosity is 10 2 dPa·s of 1,710°C or lower, and a temperature T 4 at which a glass viscosity is 10 4 dPa·s of 1,320°C or lower, the alkali-free glass including, in terms of mol% on the basis of oxides, SiO 2 : 66 to 70, Al 2 O 3 : 12 to 15, B 2 O 3 : 0 to 1.5, MgO: more than 9.5 and 13 or less, CaO: 4 to 9, SrO: 0.5 to 4.5, BaO: 0 to 1, and ZrO 2 : 0 to 2, in which MgO+CaO+SrO+BaO is from 17 to 21, MgO/(MgO+CaO+SrO+BaO) is 0.4 or more, MgO/(MgO+CaO) is 0.4 or more, MgO/(MgO+SrO) is 0.6 or more, and the alkali-free glass does not substantially contain an alkali metal oxide.
摘要翻译：本发明涉及应变点为725℃以上，50〜300℃的平均热膨胀系数为30×10 -7〜40×10 -7 /℃的无碱玻璃，玻璃粘度为10 2 dPa·s为1710℃以下的温度T 2，玻璃粘度为10 4 dPa·s的温度T 4为1320℃以下，无碱玻璃包括以氧化物为基准的摩尔％，SiO 2：66〜70，Al 2 O 3：12〜15，B 2 O 3：0〜1.5，MgO：9.5以上13以下，CaO： 4〜9，SrO：0.5〜4.5，BaO：0〜1，ZrO 2：0〜2，MgO + CaO + SrO + BaO为17〜21，MgO /（MgO + CaO + SrO + BaO）为0.4以上，MgO /（MgO + CaO）为0.4以上，MgO /（MgO + SrO）为0.6以上，无碱玻璃基本不含有碱金属氧化物。

5. 发明公开

EP2578550A1 GLASS SUBSTRATE AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译： GLASSUBSTRAT UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP2578550A1
公开(公告)日：2013-04-10
申请号：EP11789817.1
申请日：2011-05-31
申请人： Asahi Glass Company, Limited
发明人： NISHIZAWA Manabu
IPC分类号： C03C3/085 , C03C3/087 , C03C3/091 , C03C3/093 , G02F1/1333 , G09F9/30
CPC分类号： C03C3/085 , C03B18/02 , C03B19/09 , C03C3/087 , C03C3/091
摘要： The present invention provides a glass substrate having high glass transition temperature and small compaction (C) in a heat treatment at a low temperature (150 to 300°C). The present invention relates to a glass substrate including, in mass percent based on the oxides, from 68 to 81% of SiO 2 , from 0.2 to 18% of Al 2 O 3 , from 0 to 3% of B 2 O 3 , from 0.2 to 11% of MgO, from 0 to 3% of CaO, from 0 to 3% of SrO, from 0 to 3% of BaO, from 0 to 1% of ZrO 2 , from 1 to 18% of Na 2 O, from 0 to 15% of K 2 O, and from 0 to 2% of Li 2 O, wherein Al 2 O 3 +K 2 O is from 7 to 27%, Na 2 O+K 2 O is from 11.5 to 22%, MgO+CaO+SrO+BaO is from 0.2 to 14%,
MgO+0.357Al 2 O 3 -0.239K 2 O-5.58 is from -3.0 to 1.5,
Na 2 O+0.272Al 2 O 3 +0.876K 2 O-16.77 is from -2.5 to 2.5, a glass transition temperature is 500°C or higher, and an average thermal expansion coefficient at from 50 to 350°C is 100×10 -7 /°C or less.
摘要翻译：本发明提供了在低温（150〜300℃）的热处理中玻璃化转变温度高，压实度小的玻璃基板（C）。本发明涉及一种玻璃基板，以质量百分比计，以氧化物为基准，含有68〜81％的SiO 2，0.2〜18％的Al 2 O 3，0〜3％的B 2 O 3， 0.2〜11％的MgO，0〜3％的CaO，0〜3％的SrO，0〜3％的BaO，0〜1％的ZrO 2，1〜18％的Na 2 O， 0至15％的K 2 O和0至2％的Li 2 O，其中Al 2 O 3 + K 2 O为7至27％，Na 2 O + K 2 O为11.5至22％，MgO + CaO + SrO + BaO为0.2〜14％，MgO + 0.357Al 2 O 3 -0.239K 2 O-5.58为-3.0〜1.5，Na 2 O + 0.272Al 2 O 3 + 0.876K 2 O -16.77为-2.5〜2.5，玻璃化转变温度为500℃以上，50〜350℃的平均热膨胀系数为100×10 -7 /℃以下。

6. 发明公开

EP2492247A1 GLASS SHEET FOR CU-IN-GA-SE SOLAR CELLS, AND SOLAR CELLS USING SAME 审中-公开
标题翻译：天然气公司的天然气FÜRCU-IN-GA-SOLARZELLEN UND SOLARZELLEN DAMIT
公开(公告)号：EP2492247A1
公开(公告)日：2012-08-29
申请号：EP10824995.4
申请日：2010-10-20
申请人： Asahi Glass Company, Limited
发明人： NISHIZAWA Manabu , KUROKI Yuichi , NAGASHIMA Tatsuo , KAWAMOTO Yasushi , NIKI Shigeru , ISHIZUKA Shogo
IPC分类号： C03C3/085 , C03C3/087 , C03C3/091 , C03C3/093 , H01L31/04
CPC分类号： C03C3/093 , C03C3/085 , C03C3/087 , H01L31/0322 , H01L31/03923 , H01L31/0749 , Y02E10/541
摘要： Provided are a glass sheet for a CIGS solar cell which satisfies both of high power generation efficiency and high glass transition temperature, and a CIGS solar cell having high power generation efficiency. A glass sheet for a Cu-In-Ga-Se solar cell containing, in terms of mol % on the basis of the following oxides, from 60 to 75 % of SiO 2 , from 3 to 10 % of Al 2 O 3 , from 0 to 3 % of B 2 O 3 , from 5 to 18 % of MgO, from 0 to 5 % of CaO, from 4 to 18.5 % of Na 2 O, from 0 to 17 % of K 2 O, and 0 % or more and less than 10 % of SrO + BaO + ZrO 2 , wherein K 2 O/(Na 2 O + K 2 O) is from 0 to 0.5, and the glass sheet has a glass transition temperature (Tg) of more than 550°C; and a solar cell containing a glass substrate including a photoelectric conversion layer of Cu-In-Ga-Se and a cover glass disposed on the glass substrate, wherein one or both of the glass substrate and the cover glass are the glass sheet for a Cu-In-Ga-Se solar cell.
摘要翻译：本发明提供一种能够满足高发电效率和高玻璃化转变温度的CIGS太阳能电池用玻璃板和具有高发电效率的CIGS太阳能电池。一种用于Cu-In-Ga-Se太阳能电池的玻璃板，其以以下氧化物的摩尔％计含有60至75％的SiO 2，3至10％的Al 2 O 3， 0〜3％的B 2 O 3，5〜18％的MgO，0〜5％的CaO，4〜18.5％的Na 2 O，0〜17％的K 2 O，0％或多于10％的SrO + BaO + ZrO 2，其中K 2 O /（Na 2 O + K 2 O）为0至0.5，玻璃化转变温度（Tg）大于550 C; 以及含有包含Cu-In-Ga-Se的光电转换层的玻璃基板和设置在玻璃基板上的玻璃基板的玻璃基板的太阳能电池，其中玻璃基板和盖玻璃的一个或两个为Cu -Ga-Se太阳能电池。

7. 发明公开

EP2492246A1 GLASS PLATE FOR SUBSTRATE, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING TFT PANEL 审中-公开
标题翻译：玻璃基材，方法用于生产TFT SCOREBOARD PRODUCING和方法
公开(公告)号：EP2492246A1
公开(公告)日：2012-08-29
申请号：EP10824949.1
申请日：2010-10-19
申请人： Asahi Glass Company, Limited
发明人： TSUJIMURA Tomoyuki , KUROKI Yuichi , NISHIZAWA Manabu
IPC分类号： C03C3/085 , C03B18/02 , C03C3/087 , C03C3/091 , C03C3/093 , G02F1/1333 , G09F9/30 , H01J9/24 , H01J17/16
CPC分类号： C03C3/093 , C03C3/085 , C03C3/091 , H01J2211/34
摘要： Provided is a glass plate having a small B 2 O 3 content and a β-OH value (mm -1 ) of 0.05 to 0.5, and which can be suitably used as a glass substrate for a TFT panel.
The glass plate for a substrate contains, as a glass matrix composition, in mol% on the oxide basis, SiO 2 : 67 to 72, Al 2 O 3 : 1 to 7, B 2 O 3 : 0 to 4, MgO: 11 to 15, CaO: 0 to 3, SrO: 0 to 3, BaO: 0 to 4, ZrO 2 : 0 to 4, Na 2 O: 8 to 15, and K 2 O: 0 to 7, with SiO 2 +Al 2 O 3 : 71 to 77, MgO+CaO+SrO+BaO: 11 to 17, Na 2 O+K 2 O: 8 to 17, and satisfying K 2 O/(Na 2 O+K 2 O)≤0.13×(SiO 2 +Al 2 O 3 +0.5B 2 O 3 +0.3BaO)-9.4, in which the glass plate has a β-OH value (mm -1 ) of 0.05 to 0.5, and a heat shrinkage ratio (C) of 16 ppm or less.
摘要翻译：本发明提供一种具有小的B 2 O 3含量和²-OH值的0.05（毫米-1）至0.5玻璃板，并且可以适合用作TFT面板用的玻璃基板。的基板用玻璃板中含有，作为玻璃主要组成，以摩尔％的氧化物为基准，包含SiO 2：67〜72的Al 2 O 3：1〜7，B 2 O 3：0〜4的MgO：11 至15，的CaO：0〜3，SRO：0至3，的BaO：0〜4，的ZrO 2：0〜4，钠2 O：8〜15，K 2 O：0〜7，具有的SiO 2 +铝 2 O 3：71〜77的MgO + CaO的+的SrO + BaO的：11至17的Na 2 O + K 2 O：8〜17，满足K 2 O /（NA 2 O + K 2 O）‰¤0.13 X（的SiO 2 +的Al 2 O 3 + 0.5B 2 O 3 + 0.3BaO）-9.4，其中，所述玻璃板具有²-OH值的0:05（毫米-1）至0.5，和热收缩率（C ）为16ppm或以下。

8. 发明公开

EP2450319A1 ALKALI-FREE GLASS AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译： ALKALIFREIES GLAS UND VERFAHREN ZU SEINER HERSTELLUNG
公开(公告)号：EP2450319A1
公开(公告)日：2012-05-09
申请号：EP10794089.2
申请日：2010-06-25
申请人： Asahi Glass Company, Limited
发明人： NAGAI Kensuke , KUROKI Yuichi , NISHIZAWA Manabu , TSUJIMURA Tomoyuki
IPC分类号： C03C3/091 , C03B1/00 , C03C3/087 , C03C3/093 , C03C6/00 , G02F1/1333 , G09F9/30
CPC分类号： C03C3/087 , C03C1/00 , C03C3/091 , C03C3/093 , G02F2001/133302
摘要： The present invention provides an alkali-free glass that has a high strain point, low viscosity and low devitrification, and is easily subjected to float molding and fusion molding. The present invention relates to an alkali-free glass having a strain point of 725°C or higher; an average thermal expansion coefficient at 50 to 300°C of 30 × 10 -7 to 40 × 10 -7 /°C; a temperature T 2 at which a glass viscosity becomes 10 2 dPa·s of 1,710°C or lower; a temperature T 4 at which a glass viscosity becomes 10 4 dPa·s of 1,330°C or lower; a glass surface devitrification temperature (T c ) of 1,330°C or lower; a glass internal devitrification temperature (T d ) of 1,330°C or lower, and including, in terms of mol% on the basis of oxides, SiO 2 : 66 to 70, Al 2 O 3 : 12 to 15, B 2 O 3 : 0 to 1.5, MgO: 6 to 9.5, CaO: 4.5 to 8, SrO: 2 to 7, BaO: 0 to less than 1, and ZrO 2 : 0 to 2, provided that MgO + CaO + SrO + BaO is 14 to 18.2, MgO/(MgO + CaO + SrO + BaO) is 0.35 or greater, MgO/(MgO + CaO) is 0.52 or greater, and MgO/(MgO + SrO) is 0.45 or greater, in which the alkali-free glass does not substantially contain alkali metal oxides.
摘要翻译：本发明提供一种具有高应变点，低粘度和低失透性的无碱玻璃，并且容易进行浮法成型和熔融成型。本发明涉及应变点为725℃以上的无碱玻璃; 50〜300℃的平均热膨胀系数为30×10 -7〜40×10 -7 /℃; 玻璃粘度为10 2 dPa·s的温度T 2为1710℃以下; 玻璃粘度为10 4 dPa·s为1330℃以下的温度T 4; 玻璃表面失透温度（T c）为1330℃以下; 玻璃内部失透温度（T d）为1330℃以下，以SiO 2为66〜70，Al 2 O 3：12〜15，B 2 O 3为基准，以氧化物为基准的摩尔％：0〜1.5，MgO：6〜9.5，CaO：4.5〜8，SrO：2〜7，BaO：0〜小于1，ZrO 2：0〜2，条件是MgO + CaO + SrO + BaO为14 至18.2，MgO /（MgO + CaO + SrO + BaO）为0.35以上，MgO /（MgO + CaO）为0.52以上，MgO /（MgO + SrO）为0.45以上，玻璃基本上不含有碱金属氧化物。

9. 发明授权

EP2842918B1 NON-ALKALI GLASS AND METHOD FOR PRODUCING SAME 有权转让
标题翻译：非碱性玻璃及其制造方法
公开(公告)号：EP2842918B1
公开(公告)日：2017-09-06
申请号：EP13780855.6
申请日：2013-04-24
申请人： Asahi Glass Company, Limited
发明人： TOKUNAGA Hirofumi , TSUJIMURA Tomoyuki , NISHIZAWA Manabu , KOIKE Akio
IPC分类号： C03C3/091 , C03C3/087 , C03C3/093
CPC分类号： C03C3/091 , C03C3/087 , C03C3/093

10. 发明公开

EP2860160A1 ALKALI-FREE GLASS SUBSTRATE AND METHOD FOR REDUCING THICKNESS OF ALKALI-FREE GLASS SUBSTRATE 审中-公开
标题翻译： ALKALIFREIE GLASSUBSTRATE UND VERFAHREN ZUR VERRINGERUNG DER DICKE EINES ALKALIFREIEN GLASSUBSTRATS
公开(公告)号：EP2860160A1
公开(公告)日：2015-04-15
申请号：EP13797158.6
申请日：2013-05-30
申请人： Asahi Glass Company, Limited
发明人： TOKUNAGA Hirofumi , TSUJIMURA Tomoyuki , NISHIZAWA Manabu , KOIKE Akio
IPC分类号： C03C3/091 , C03C3/087 , C03C3/093 , C03C15/00
CPC分类号： C03C15/00 , C03C3/087 , C03C3/091
摘要： 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 -7 to 43×10 -7 /°C, a temperature T 2 at which a glass viscosity reaches 10 2 dPa·s of 1710°C or lower, a temperature T 4 at which the glass viscosity reaches 10 4 dPa·s of 1320°C or lower, and containing, indicated by mol% on the basis of oxides, SiO 2 66 to 70, Al 2 O 3 12 to 15, B 2 O 3 0 to 1.5, MgO exceeding 9.5 to 13, CaO 4 to 9, SrO 0.5 to 4.5, BaO 0 to 1, and ZrO 2 0 to 2, in which MgO+CaO+SrO+BaO is from 17 to 21, MgO/(MgO+CaO+SrO+BaO) is 0.40 or more, MgO/(MgO+CaO) is 0.40 or more, and MgO/(MgO+SrO) is 0.60 or more.
摘要翻译：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5μm以上，其中无碱玻璃基板含有下述的无碱玻璃，厚度减小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 /℃，玻璃粘度为10 2的温度T 2 dPa·s为1710℃以下，玻璃粘度达到10 4 dPa·s为1320℃以下的温度T 4，以氧化物的摩尔％表示，SiO 2 66〜70 ，Al 2 O 3 12〜15，B 2 O 3 0〜1.5，MgO超过9.5〜13，CaO 4〜9，SrO 0.5〜4.5，BaO 0〜1，ZrO 2 0〜2，MgO + CaO +的SrO + BaO的 MgO /（MgO + CaO + SrO + BaO）为0.40以上，MgO /（MgO + CaO）为0.40以上，MgO /（MgO + SrO）为0.60以上。

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