发明名称 |
GLASS PLATE FOR TEMPERING |
摘要 |
<p>To provide a glass plate to be tempered, which has a low thermal expansion coefficient at relatively low temperature, and which can have a sufficiently high surface compression stress by a conventional heat tempering process, even when it is thin. A glass plate to be tempered, which contains B 2 O 3 in a range of from 12.5 to 35 mol% in its composition, the difference [X-Y] between the total content X of compounds selected from MgO, CaO, BaO, Na 2 O and K 2 O in the composition and the content Y of B 2 O 3 in the composition being within a range of from -5 to 10 mol%, and which is to be tempered by heating and quenching.</p> |
申请公布号 |
EP2759522(A4) |
申请公布日期 |
2015.05.20 |
申请号 |
EP20120833239 |
申请日期 |
2012.09.20 |
申请人 |
ASAHI GLASS COMPANY, LIMITED |
发明人 |
ONO, MADOKA;KOIKE, AKIO;AMMA, SHINICHI;ITO, SETSURO |
分类号 |
C03B27/04;C03C3/089;C03C3/091 |
主分类号 |
C03B27/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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