发明名称 |
STAIN-RESISTANT GLASS AND METHOD OF MAKING SAME |
摘要 |
The present invention provides a stain-resistant glass and a method of making such a glass. In accordance with the method of the invention, SO3 is applied to the upper surface of a sheet of float glass in an amount sufficient to reduce staining of the glass. In a preferred embodiment, the oxygen-containing gas and SO2 gas are supplied in a lehr adjacent the float bath at a temperature of at least about 800 DEG F (about 425 DEG C). In one aspect of the invention, a hood (30) having a gas delivery system (40) is provided, with the hood defining a downwardly open enclosure and enclosing a portion of the delivery system. The hood is optimally disposed above a ribbon of float glass (25) in an annealing lehr (20) and the delivery system may include a sparge pipe for delivering either SO2 or SO3 gas to the hood.
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申请公布号 |
WO9505348(A1) |
申请公布日期 |
1995.02.23 |
申请号 |
WO1994US09307 |
申请日期 |
1994.08.19 |
申请人 |
CARDINAL IG COMPANY |
发明人 |
PIPER, MARK;SLAVICH, AL;GRANLEY, CHRIS;O'SHAUGHNESSY, ROGER |
分类号 |
C03B18/20;C03C23/00;(IPC1-7):C03B18/20;B05B3/02 |
主分类号 |
C03B18/20 |
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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