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公开(公告)号：US20210380469A1
公开(公告)日：2021-12-09
申请号：US17283108
申请日：2019-10-07
IPC分类号： C03C3/095
摘要： The present invention provides an alkali-free glass sheet, including as a glass composition, in terms of mol %, 60% to 74% of SiO2, 6% to 20% of Al2O3, 0% to 9% of B2O3, 1% to 13% of MgO, 1% to 13% of CaO, 0% to 7% of SrO, 0% to 8% of BaO, and 0% to less than 1.0% of Y2O3+La2O3, being substantially free of an alkali metal oxide, and having a strain point of 650° C. or more.
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公开(公告)号：US20190016626A1
公开(公告)日：2019-01-17
申请号：US16069248
申请日：2017-01-05
发明人： Atsuki SAITO , Masahiro HAYASHI
摘要： A glass of the present invention includes as a glass composition, in terms of mol %, 60% to 80% of SiO2, 12% to 25% of Al2O3, 0% to 3% of B2O3, 0% to 3% of Li2O+Na2O+K2O, 5% to 25% of MgO+CaO+SrO+BaO, and 0.1% to 10% of P2O5, and has a strain point of more than 730° C.
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公开(公告)号：US20160368815A1
公开(公告)日：2016-12-22
申请号：US14901248
申请日：2014-07-04
发明人： Masahiro HAYASHI , Shinkichi MIWA
CPC分类号： C03C10/0045 , C03C3/093 , C03C10/0009 , C03C10/0036 , C03C10/0054 , C03C2204/00 , G02F1/1368 , G02F2001/133302 , H01L27/1218 , H01L27/1225 , H01L51/0096
摘要： A glass composition SiO2, Al2O3, B2O3, and RO, where RO represents one kind or two or more kinds selected from MgO, CaO, SrO, and BaO, and allows two or more kinds of crystals selected from a SiO2—Al2O3—RO-based crystal, a SiO2-based crystal, and a SiO2—Al2O3-based crystal to precipitate in a temperature range of from a liquidus line temperature to (the liquidus line temperature—50° C.)
摘要翻译： 一种玻璃组合物SiO 2，Al 2 O 3，B 2 O 3和RO，其中RO代表选自MgO，CaO，SrO和BaO中的一种或两种以上，并且允许两种或更多种选自SiO 2 -Al 2 O 3 -RO- 在液相线温度至（液相线温度-50℃）的温度范围内析出的SiO 2系晶体，SiO 2系晶体和SiO 2 -Al 2 O 3系晶体，
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公开(公告)号：US20210313354A1
公开(公告)日：2021-10-07
申请号：US17261994
申请日：2019-07-30
发明人： Atsushi MUSHIAKE , Takashi MURATA , Tetsuya MURATA , Hiroki KATAYAMA , Kosuke KAWAMOTO , Masahiro HAYASHI
摘要： A display substrate of the present invention has a thermal shrinkage value of 10 ppm or less when the display substrate is increased in temperature from normal temperature to 500° C. at a temperature increase rate of 5° C./min, held at 500° C. for 1 hour, and then cooled to normal temperature at a temperature decrease rate of 5° C./min.
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公开(公告)号：US20220242775A1
公开(公告)日：2022-08-04
申请号：US17620139
申请日：2020-05-22
发明人： Masahiro HAYASHI , Mayu FUJII
摘要： Provided is a method for producing a glass substrate that can reduce the dimensional change during heat treatment while avoiding shortening of facilities' service lives. A method for producing a glass substrate includes melting and forming a glass raw material to produce a glass substrate having a strain point of 690 to 750° C., wherein an average cooling rate in a temperature range from (an annealing point plus 150° C.) to (the annealing point minus 200° C.) in a cooling process during the forming is adjusted to 100 to 400° C./min to obtain the glass substrate having a degree of thermal contraction of 15 ppm or less when subjected to a heat treatment at 500° C. for an hour.
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公开(公告)号：US20220204385A1
公开(公告)日：2022-06-30
申请号：US17438290
申请日：2020-03-06
发明人： Masahiro HAYASHI , Mayu NISHIMIYA
IPC分类号： C03C3/093
摘要： A glass substrate of the present invention has a strain point of from 695° C. to 740° C., a temperature at 104.5 dPa·s of 1,300° C. or less, a liquidus viscosity of 104.5 dPa·s or more, a Young's modulus of 78 GPa or more, and a thermal shrinkage rate in heat treatment at 500° C. for 1 hour of 20 ppm or less.
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公开(公告)号：US20220024806A1
公开(公告)日：2022-01-27
申请号：US17311451
申请日：2019-12-06
发明人： Atsuki SAITO , Masahiro HAYASHI
IPC分类号： C03C3/097
摘要： An alkali-free glass sheet of the present invention includes as a glass composition, in terms of mol %, 60% to 90% of SiO2, 5% to 20% of Al2O3, 0% to 15% of B2O3, 0.1% to 20% of P2O5, 0% to 0.5% of Li2O+Na2O+K2O, 0% to 10% of MgO, 0.1% to 10% of CaO, and 0% to 5% of SrO, and has an average thermal expansion coefficient in a temperature range of from 30° C. to 380° C. of 34.0×107/° C. or less.
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公开(公告)号：US20180044223A1
公开(公告)日：2018-02-15
申请号：US15556067
申请日：2016-03-03
发明人： Masahiro HAYASHI
CPC分类号： C03C3/093 , C03B17/064 , C03C3/087 , C03C3/097
摘要： 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 SiO2, 11% to 15% of Al2O3, 0% to 5% of B2O3, 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 P2O3, and has a molar ratio (MgO+CaO+SrO+BaO)/Al2O3 of from 0.7 to 1.5.
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公开(公告)号：US20180148367A1
公开(公告)日：2018-05-31
申请号：US15576983
申请日：2016-05-24
发明人： Masahiro HAYASHI
IPC分类号： C03C3/087 , H01L51/50 , C03C3/091 , C03C3/097 , G02F1/1333
CPC分类号： C03C3/087 , C03C3/091 , C03C3/097 , C03C15/00 , G02F1/1333 , G02F2001/133302 , H01L51/50
摘要： A glass of the present invention includes as a glass composition, in terms of mass %, 50% to 65% of SiO2, 15% to 26% of Al2O3, 0% to 5% of B2O3, 0% to 5% of MgO, 0% to 10% of CaO, 0% to 10% of SrO, 0% to 15% of BaO, and 0.01% to 15% of P2O5, has a molar ratio (MgO+CaO+SrO+BaO)/Al2O3 of from 0.5 to 1.5, and satisfies a relationship of {[B2O3]+3×[P2O5]}≤18.5 mol %.
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