JP2018145093A - 強化ガラス、強化ガラス板、強化ガラス容器及び強化用ガラス - Google Patents
強化ガラス、強化ガラス板、強化ガラス容器及び強化用ガラス Download PDFInfo
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- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
- C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
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- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
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- C03C4/00—Compositions for glass with special properties
- C03C4/18—Compositions for glass with special properties for ion-sensitive glass
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Abstract
Description
向がある。また歪点が低下し過ぎたり、ガラス組成の成分バランスを欠き、かえって耐失
透性が低下する傾向がある。よって、Li2O+Na2O+K2Oの好適な上限範囲は30%以下、19%以下、18.5%以下、18%以下、17.5%以下、17%以下、特に16.5%以下である。
に規制した上で、モル比Fe2O3/(Fe2O3+SnO2)を0.8以上、0.9以上、特に0.95以上に規制することが好ましい。このようにすれば、板厚1mmにおける透過率(400〜770nm)が向上し易くなる(例えば90%以上)。
(1)モル%で、SiO2 50〜80%、Al2O3 5〜30%、Li2O 0〜2%、Na2O 5〜25%、K2O 0〜5%を含有し、実質的にAs2O3、Sb2O3、PbO及びFを含有しない。
(2)モル%で、SiO2 50〜80%、Al2O3 6.5〜12.4%、Li2O 0〜1.7%、Na2O 7.0超〜15.5%、K2O 0〜3.5%、MgO 0〜2.5%を含有し、実質的にAs2O3、Sb2O3、PbO及びFを含有しない。
(3)モル%で、SiO2 50〜80%、Al2O3 6.5〜12.4%、Li2O 0〜1%、Na2O 9〜15.5%、K2O 0〜3.5%、MgO 0.1〜2.5%、MgO+CaO+SrO+BaO 0〜2.5%を含有し、実質的にAs2O3、Sb2O3、PbO及びFを含有しない。
(4)モル%で、SiO2 50〜80%、Al2O3 6.5〜12.4%、B2O3 0.01〜15%、Li2O 0〜1%、Na2O 9〜15.5%、K2O 0〜3.5%、Li2O+Na2O+K2O 9〜16.5%、MgO 0.1〜2.5%、MgO+CaO+SrO+BaO 0.1〜2.5%を含有し、実質的にAs2O3、Sb2O3、PbO及びFを含有しない。
(5)モル%で、SiO2 50〜77%、Al2O3 6.5〜12.4%、B2O3 1〜15%、Li2O 0〜1%、Na2O 9〜15.5%、K2O 0〜3.5%、Li2O+Na2O+K2O 9〜16.5%、MgO 0.1〜2.5%、MgO+CaO+SrO+BaO 0.1〜2.5%、Li2O+Na2O+K2O+MgO+CaO+SrO+BaO 13〜18.5%を含有し、実質的にAs2O3、Sb2O3、PbO及びFを含有しない。
(6)モル%で、SiO2 50〜77%、Al2O3 6.5〜12.4%、B2O3 1〜10%、Li2O 0〜1%、Na2O 9〜15.5%、K2O 0〜3.5%、Li2O+Na2O+K2O 9〜16.5%、MgO 0.1〜2.5%、MgO+CaO+SrO+BaO 0.1〜2.5%、Li2O+Na2O+K2O+MgO+CaO+SrO+BaO 13〜18.5%を含有し、モル比MgO/(Li2O+Na2O+K2O+MgO+CaO+SrO+BaO)が0.01〜0.2であり、実質的にAs2O3、Sb2O3、PbO及びFを含有しない。
(7)モル%で、SiO2 50〜77%、Al2O3 6.5〜12.4%、B2O3 1〜10%、Li2O 0〜1%、Na2O 9〜15.5%、K2O 0〜3.5%、Li2O+Na2O+K2O 9〜16.5%、MgO 0.1〜2.5%、MgO+CaO+SrO+BaO 0.1〜2.5%、Li2O+Na2O+K2O+MgO+CaO+SrO+BaO 13〜18.5%を含有し、モル比MgO/(Li2O+Na2O+K2O+MgO+CaO+SrO+BaO)が0.01〜0.2であり、モル比(Al2O3+B2O3)/SiO2が0.15〜0.30であり、実質的にAs2O3、Sb2O3、PbO及びFを含有しない。
耐薬品性は、80℃、10質量%の塩酸水溶液に24時間浸漬させた後の質量減少である。次のようにして、各試料の質量減少を測定した。まず塩酸水溶液に浸漬させる前の各試料の質量と表面積を測定した。次に、各試料を塩酸水溶液に浸漬させた後、各試料の質量を測定した。最後に、(浸漬前の質量−浸漬後の質量)/(浸漬前の表面積)の式により、質量減少を算出した。
Claims (25)
- 表面に圧縮応力層を有する強化ガラスであって、ガラス組成として、モル%で、SiO2 50〜80%、Al2O3 5〜30%、Li2O 0〜2%、Na2O 5〜25%、K2O 0〜5%を含有し、実質的にAs2O3、Sb2O3、PbO及びFを含有しないことを特徴とする強化ガラス。
- ガラス組成として、モル%で、SiO2 50〜80%、Al2O3 6.5〜12.4%、Li2O 0〜1%、Na2O 9〜15.5%、K2O 0〜3.5%、MgO 0.1〜2.5%、MgO+CaO+SrO+BaO 0〜2.5%を含有し、実質的にAs2O3、Sb2O3、PbO及びFを含有しないことを特徴とする請求項1に記載の強化ガラス。
- ガラス組成として、モル%で、SiO2 50〜80%、Al2O3 6.5〜12.4%、B2O3 0.01〜15%、Li2O 0〜1%、Na2O 9〜15.5%、K2O 0〜3.5%、Li2O+Na2O+K2O 9〜16.5%、MgO 0.1〜2.5%、MgO+CaO+SrO+BaO 0.1〜2.5%を含有し、実質的にAs2O3、Sb2O3、PbO及びFを含有しないことを特徴とする請求項1又は2に記載の強化ガラス。
- ガラス組成として、モル%で、SiO2 50〜77%、Al2O3 6.5〜12.4%、B2O3 1〜15%、Li2O 0〜1%、Na2O 9〜15.5%、K2O 0〜3.5%、Li2O+Na2O+K2O 9〜16.5%、MgO 0.1〜2.5%、MgO+CaO+SrO+BaO 0.1〜2.5%、Li2O+Na2O+K2O+MgO+CaO+SrO+BaO 13〜18.5%を含有し、実質的にAs2O3、Sb2O3、PbO及びFを含有しないことを特徴とする請求項1〜3の何れか一項に記載の強化ガラス。
- ガラス組成として、モル%で、SiO2 50〜77%、Al2O3 6.5〜12.4%、B2O3 1〜10%、Li2O 0〜1%、Na2O 9〜15.5%、K2O 0〜3.5%、Li2O+Na2O+K2O 9〜16.5%、MgO 0.1〜2.5%、MgO+CaO+SrO+BaO 0.1〜2.5%、Li2O+Na2O+K2O+MgO+CaO+SrO+BaO 13〜18.5%を含有し、モル比MgO/(Li2O+Na2O+K2O+MgO+CaO+SrO+BaO)が0.01〜0.2であり、実質的にAs2O3、Sb2O3、PbO及びFを含有しないことを特徴とする請求項1〜4の何れか一項に記載の強化ガラス。
- ガラス組成として、モル%で、SiO2 50〜77%、Al2O3 6.5〜12.4%、B2O3 1〜10%、Li2O 0〜1%、Na2O 9〜15.5%、K2O 0〜3.5%、Li2O+Na2O+K2O 9〜16.5%、MgO 0.1〜2.5%、MgO+CaO+SrO+BaO 0.1〜2.5%、Li2O+Na2O+K2O+MgO+CaO+SrO+BaO 13〜18.5%を含有し、モル比MgO/(Li2O+Na2O+K2O+MgO+CaO+SrO+BaO)が0.01〜0.2、モル比(Al2O3+B2O3)/SiO2が0.15〜0.30であり、実質的にAs2O3、Sb2O3、PbO及びFを含有しないことを特徴とする請求項1〜5の何れか一項に記載の強化ガラス。
- 密度が2.45g/cm3以下であることを特徴とする請求項1〜6の何れか一項に記載の強化ガラス。
- 80℃、10質量%の塩酸水溶液に24時間浸漬させた際の質量減少が40mg/cm2以下であることを特徴とする請求項1〜7の何れか一項に記載の強化ガラス。
- 圧縮応力層の圧縮応力値が300MPa以上、且つ圧縮応力層の厚みが10μm以上であることを特徴とする請求項1〜8の何れか一項に記載の強化ガラス。
- 液相温度が1200℃以下であることを特徴とする請求項1〜9の何れか一項に記載の強化ガラス。
- 液相粘度が104.0dPa・s以上であることを特徴とする請求項1〜10の何れか一項に記載の強化ガラス。
- 104.0dPa・sにおける温度が1300℃以下であることを特徴とする請求項1〜11の何れか一項に記載の強化ガラス。
- 30〜380℃の温度範囲における熱膨張係数が90×10−7/℃以下であることを特徴とする請求項1〜12の何れか一項に記載の強化ガラス。
- 請求項1〜13の何れか一項に記載の強化ガラスからなることを特徴とする強化ガラス板。
- 長さ寸法が500mm以上、幅寸法が300mm以上、厚みが0.1〜2.0mmであることを特徴とする請求項14に記載の強化ガラス板。
- オーバーフローダウンドロー法で成形されてなることを特徴とする請求項14又は15に記載の強化ガラス板。
- タッチパネルディスプレイに用いることを特徴とする請求項14〜16の何れか一項に記載の強化ガラス板。
- 携帯電話のカバーガラスに用いることを特徴とする請求項14〜16の何れか一項に記載の強化ガラス板。
- 太陽電池のカバーガラスに用いることを特徴とする請求項14〜16の何れか一項に記載の強化ガラス板。
- 長さ寸法500mm以上、幅寸法300mm以上、厚み0.1〜2.0mmの強化ガラス板であって、
ガラス組成として、モル%で、SiO2 50〜77%、Al2O3 6.5〜12.4%、B2O3 1〜10%、Li2O 0〜1%、Na2O 9〜15.5%、K2O 0〜3.5%、Li2O+Na2O+K2O 9〜16.5%、MgO 0.1〜2.5%、MgO+CaO+SrO+BaO 0.1〜2.5%、Li2O+Na2O+K2O+MgO+CaO+SrO+BaO 13〜18.5%を含有し、モル比MgO/(Li2O+Na2O+K2O+MgO+CaO+SrO+BaO)が0.01〜0.2、モル比(Al2O3+B2O3)/SiO2が0.15〜0.30であり、実質的にAs2O3、Sb2O3、PbO及びFを含有せず、
密度が2.45g/cm3以下、圧縮応力層の圧縮応力値が300MPa以上、圧縮応力層の厚みが10μm以上、液相温度が1200℃以下、30〜380℃の温度範囲における熱膨張係数が90×10−7以下であることを特徴とする強化ガラス板。 - 請求項1〜13の何れか一項に記載の強化ガラスからなることを特徴とする強化ガラス容器。
- 医薬品容器に用いることを特徴とする請求項21に記載の強化ガラス容器。
- ガラス組成として、モル%で、SiO2 50〜80%、Al2O3 5〜30%、Li2O 0〜2%、Na2O 5〜25%、K2O 0〜5%を含有し、実質的にAs2O3、Sb2O3、PbO及びFを含有しないことを特徴とする強化用ガラス。
- 80℃、10質量%の塩酸水溶液に24時間浸漬させた際の質量減少が40mg/cm2以下であることを特徴とする請求項23に記載の強化用ガラス。
- 使用履歴がない硝酸カリウム溶融塩でイオン交換処理した際の圧縮応力層の圧縮応力値CS1と、Naイオンを20000ppm(質量)含む硝酸カリウム溶融塩でイオン交換処理した際の圧縮応力層の圧縮応力値CS2との比CS2/CS1が0.7以上であることを特徴とする請求項23又は24に記載の強化用ガラス。
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