Lead-free low softening point glass
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United States of America Patent
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Dec 12, 2006
Issued Date -
N/A
app pub date -
Sep 22, 2005
filing date -
May 11, 2004
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Expired
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Abstract
Disclosed is a lead-free low softening point glass whose composition lies within the system SnO--P.sub.2O.sub.5 and containing over 5 to 30 mol % of MnO. The addition of MnO allows the water resistance and coefficient of thermal expansion of the glass to be improved without spoiling its feature of a low softening point. The lead-free low softening point glass can be prepared through a simplified production process.
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