Red glass, process for manufacturing red glass, and tinted bulbs and tubes obtained with such a glass
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United States of America Patent
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Nov 3, 2009
Grant Date -
Jan 25, 2007
app pub date -
Jul 20, 2006
filing date -
Jul 22, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a bulk-tinted red glass formed from a glass batch based on a soda-lime-silica composition, to a process for manufacturing red glass and to a bulb obtained from a blank or a tube manufactured with such a glass. The batch comprises, per 100% by weight of the batch, 0.1 to 1% by weight of copper, 0.2 to 2% by weight of tin and 0.01 to 2.5% by weight of oxide of the lanthanide group and/or 0.01 to 0.5% by weight of silver in silver oxide or nitrate form.
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