发明公开
EP1682458A1 LITHIA-ALUMINA-SILICA CONTAINING GLASS COMPOSITIONS AND GLASSES SUITABLE FOR CHEMICAL TEMPERING AND ARTICLES MADE USING THE CHEMICALLY TEMPERED GLASS
有权
锂氧化物 - 氧化铝 - 氧化硅的含玻璃组合物和化学预压LIKELY并使用化学预应力GLASS GLASSES生产OBJECTS
- 专利标题： LITHIA-ALUMINA-SILICA CONTAINING GLASS COMPOSITIONS AND GLASSES SUITABLE FOR CHEMICAL TEMPERING AND ARTICLES MADE USING THE CHEMICALLY TEMPERED GLASS
- 专利标题（中）： 锂氧化物 - 氧化铝 - 氧化硅的含玻璃组合物和化学预压LIKELY并使用化学预应力GLASS GLASSES生产OBJECTS
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申请号： EP04795478.9申请日： 2004-10-19
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公开(公告)号： EP1682458A1公开(公告)日： 2006-07-26
- 发明人: SHELESTAK, Larry, J. , GOODWIN, George, B. , MISHRA, Amarendra , BALDAUFF, James, M.
- 申请人： PPG Industries Ohio, Inc.
- 申请人地址： 3800 West 143rd Street Cleveland, OH 44111 US
- 专利权人： PPG Industries Ohio, Inc.
- 当前专利权人： PPG Industries Ohio, Inc.
- 当前专利权人地址： 3800 West 143rd Street Cleveland, OH 44111 US
- 代理机构： Sternagel, Fleischer, Godemeyer & Partner
- 优先权： US514136P 20031024; US956500 20041001
- 国际公布： WO2005042423 20050512
- 主分类号： C03C3/097
- IPC分类号： C03C3/097 ; C03C3/11 ; C03C3/093 ; C03C3/091 ; C03C3/085 ; C03C3/087 ; C03C21/00
摘要：
A glass composition for chemical tempering includes oxides in wt% ranges of: SiO2 60 to 75; Al2O3 18 to 28; Li2O 3 to 9; Na2O 0 to 3; K2O 0 to 0.5; CaO 0 to 3; MgO 0 to 3; ZrO2 0 to 3; where MgO + CaO is 0 to 6 wt%; Al2O3 + ZrO2 is 18 to 28 wt%, and Na2O + K2O is 0.05 to 3.00 wt%. The glass has a log 10 viscosity temperature in the temperature range of 1328OF (720OC) to 1499OF (815OC); a liquidus temperature in the temperature range of 2437OF (1336OC) to 2575OF (1413OC), and a log 7.6 softening point temperature in the temperature range of 1544OF (840OC) to 1724OF (940OC). The chemically tempered glass has, among other properties, an abraded modulus of rupture of 72 to 78 KPSI, and a modulus of rupture of 76 to 112 KPSI.
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