发明授权
US07981823B2 Transparent glass ceramic plate that has an opaque, colored bottom coating over the entire surface or over part of the surface
有权
透明玻璃陶瓷板，在整个表面或表面的整个表面上具有不透明的彩色底涂层
- 专利标题： Transparent glass ceramic plate that has an opaque, colored bottom coating over the entire surface or over part of the surface
- 专利标题（中）： 透明玻璃陶瓷板，在整个表面或表面的整个表面上具有不透明的彩色底涂层
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申请号： US12540881申请日： 2009-08-13
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公开(公告)号： US07981823B2公开(公告)日： 2011-07-19
- 发明人: Friedrich Siebers , Ulrich Schiffner , Wolfgang Schmidbauer , Klaus Schönberger , Petra Grewer , Erich Rodek
- 申请人： Friedrich Siebers , Ulrich Schiffner , Wolfgang Schmidbauer , Klaus Schönberger , Petra Grewer , Erich Rodek
- 申请人地址： DE Mainz
- 专利权人： Schott AG
- 当前专利权人： Schott AG
- 当前专利权人地址： DE Mainz
- 代理机构： MIllen, White, Zelano & Branigan, P.C.
- 优先权： EP06005598 20060320
- 主分类号： C03C10/12
- IPC分类号： C03C10/12 ; C03C10/14 ; C03C3/095 ; C03C3/083 ; B32B17/06 ; B32B15/00
摘要：
A transparent, colorless lithium-aluminosilicate glass ceramic plate with high-quartz mixed crystals as the prevailing crystal phase, which is provided on one side with an opaque, colored, temperature-stable coating over the entire surface or over the entire surface to a large extent, is described, which has a content of Nd2O3 of 40 to 4000 ppm, a Yellowness Index of less than 10% with a 4 mm glass (ceramic) layer thickness, and a variegation of colors of the glass or the glass ceramic in the CIELAB color system of C* of less than 5. The glass ceramic plate preferably has a composition (in % by weight based on oxide) of: Li2O 3.0-4.5, Na2O 0-1.5, K2O 0-1.5, ΣNa2O+K2O 0.2-2.0, MgO 0-2.0, CaO 0-1.5, SrO 0-1.5, BaO 0-2.5, ZnO 0-2.5, B2O3 0-1.0, Al2O3 19-25, SiO2 55-69, TiO2 1-3, ZrO2 1-2.5, SnO2 0-0.4, ΣSnO2+TiO2
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